With neck-snapping beasts like the 650-horse C7 Z06 adrift around, branch achievement cars accept never been faster. Cheers to the Corvette aggregation for cranking out that pump-gas adeptness number, because that affair is collapsed insane.
The blow of us absorb bags to according or beat the supercharged LT4’s output. But normally, high-compression or added abettor builds acquainted for 91-octane artery gas leave adeptness on the table. If you appetite to add added timing or crank up the addition for added ponies, you’ll charge added octane to accumulate that engine-killing blast at bay.
And abacus octane can additionally account our agilely modded Vettes, too. Since the high-octane celebrity canicule of the 1960s, exceptional pump gas octane ratings accept dropped, and afresh collapsed off in the mid-1990s. They additionally alter broadly about the United States. I biking amid the East Coast and the Midwest a lot, and seeing an NYC-area Sunoco abject with an Ultra 93 pump gets me all tingly. Does that accomplish me weird? Yes, but let’s see how you feel at rural Midwestern gas stations with 89-octane “premium.” Bandy in the ammunition affection and octane variances amid altered stations and tankfills, and you can accept why our advancing achievement aftermarket craves octane-boosting products.
But chief to add octane is easy—the adamantine allotment is chief how to add it. For example, let’s say you adjudge to run hunt fuel: how abundant octane does your car need? Do you buy leaded or unleaded hunt fuel? Should you buy oxygenated hunt ammunition or not? Is bond hunt ammunition with pump gas recommended, and if so, how abundant do you use?
And those questions are aloof about hunt fuel—there’s additionally hunt ammunition apply to consider. And while booze bang is a hardly altered band-aid to the octane equation, it additionally can breach your octane-deficiency problem.
All action allowances and drawbacks, so we’re activity to altercate anniversary adjustment in depth. And afresh you can go forth, arch pond in octane knowledge, to accept the best octane enhancer for your Corvette.
Race ammunition is the old bouncer of aerial octane—it’s been about for decades, it’s produced by abundant companies, and it’s accessible in abounding octane ratings and formulations.
It’s a alluring concoction, so to added brainwash ourselves we accomplished out to two gentlemen with a accumulated 80-plus years of ammunition experience: Jack Day, admiral of Rockett Brand Antagonism Fuel, and Tim Wusz, Rockett’s VP of engineering. These two fabricated and awash hunt ammunition at Union 76 during its NASCAR partnership, afresh started Rockett Brand in 2004. These days, Illinois-based Rockett Brand offers unleaded and leaded antagonism fuels with 100-, 110-, 112-, 114-, and 118-octane ratings, and E85 with a 112-octane rating.
Race ammunition is comprised of beneath than 100 hydrocarbons: there’s maybe six arresting ones, and the blow are present alone in baby quantities. A adequate hunt ammunition architect alone includes ammunition apparatus that will accord adapted qualities—high octane, a fast burn, adequate vaporization, and for leaded fuels, the adeptness to comedy nice with lead.
Compare that to accustomed pump gas: it is a admixture of several hundred hydrocarbons, with abounding of them occurring during the adorning process. As they can’t be afar out, these apparatus are aloof forth for the ride—they bake aloof accomplished in non-race, non-high rpm engines anyway.
Race ammunition is a fantastically circuitous product, but of advance the aboriginal affair we all admiration about is its…
A fuel’s octane cardinal is its adeptness to abide detonation. And it’s important to agenda that octane isn’t power—the account to adopting a fuel’s octane affection is alone authentic if the abettor it goes into is detonating. The college a fuel’s octane number, the added aggressive it is to detonation.
An abettor alone needs abundant octane to anticipate detonation; if it’s acquainted for 91-octane pump gas and has a slight ping on a hot day, bushing up with 118-octane hunt ammunition won’t add crazy horsepower.
Fuel has what’s alleged an anti-knock index, or AKI, which is affected based on the boilerplate of two altered tests: the analysis octane cardinal (RON) test, and the motor octane cardinal (MON) test.
The analysis octane cardinal analysis consists of a single-cylinder abettor that runs at 600 rpm. Application 125-degree F assimilation temperature and accepted barometric pressure, this part-throttle analysis determines a fuel’s blast attrition at ablaze load.
The motor octane cardinal analysis is added severe: the single-cylinder abettor runs at 900 rpm, and breathes 300-degree F assimilation air. This is a heavy-load analysis that determines how a ammunition will accomplish at wide-open throttle.
When affairs gas at the pump, you’re allotment a ammunition based on its AKI—the pump wears EPA-required decals assuming (R M)/2 and ammunition grades like 93, 89, and 87. So as an example, beat the “93” on agency you’re selecting a ammunition that ability accept a 97 analysis octane and an 89 motor octane. (97 89 = 186) / 2 = 93 octane.
But with hunt fuels, companies sometimes alone account the MON cardinal for fuels they accede “track only,” and can account the MON, RON, and R M/2 numbers for street-friendly formulations. Both the MON and RON accept value; however, unless you charge to accept a hunt ammunition based on its RON or R M/2 cardinal for a assertive antagonism class, experts acclaim that you abject your ammunition best on its MON.
But Day adds an important aftermost chat on octane. “All antagonism fuels are not the same, or fabricated the aforementioned way. Amid two altered brands of hunt fuel, the one with a college octane cardinal doesn’t necessarily beggarly that it’s a bigger fuel. You alone charge an octane cardinal to amuse octane requirement, but a affection antagonism ammunition is about the absolute package, not aloof its MON.”
Race Ammunition Properties
Speaking of the absolute package, let’s get into how hunt ammunition works—we’ve already discussed motor octane, analysis octane, and R M/2 values, so let’s awning a few added important backdrop of hunt fuel:
A fuel’s afire dispatch describes how bound it releases energy. Altered hunt fuels accommodate altered amounts of additives, which affect the dispatch at which that ammunition burns. This gets ultra-technical absolute fast, but basically, the ambition is to actualize aiguille base burden (and power) for your specific abettor blazon and motorsport.
Its activity aggregate describes how abundant abeyant activity a ammunition can make, and is abstinent in BTUs.
The cooling aftereffect describes how able-bodied a ammunition helps air-conditioned an engine’s assimilation admixture as the ammunition goes from a aqueous anatomy to a vapor. Related to the calefaction of vaporization, cooling aftereffect allowances all engines as it increases the anatomy of the basin air and therefore, improves volumetric efficiency.
Its specific force is the arrangement of a liquid’s anatomy compared to water, at a specific temperature. The specific force of hunt ammunition can ambit from the .690s to the low .800s at 60 degrees Fahrenheit.
A fuel’s Reid Breath Burden (RVP) is a aqueous fuel’s dehydration characteristics, abstinent in pounds per aboveboard inch. You’ve accomplished RVP by affairs summer and winter gas: summer fuels are attenuated to accept 7 to 10 psi RVPs, preventing the ammunition from abbreviating in the summer calefaction (and creating aerial gas catchbasin burden and aerial pollution). Conversely, winter fuels can accept RVPs of 10 to 14 psi, as there’s beneath adventitious of dehydration in acknowledgment temps. A affection hunt gas has about 6 to 7 psi of breath pressure; carbureted engines can’t accept too ablaze of a breath pressure, or it can account breath lock.
Its beverage is a distance of a fuel’s dehydration tendencies back heated. As ammunition is a admixture of abounding altered hydrocarbons, it will clear at altered temperatures until the end point (E.P.) is reached. An archetype could be, “10% evap @ 141.0 °F, 50% evap @ 174.0 °F, 90% evap @ 214 °F, E.P. @ 260 °F.”
The blaze adherence measures a fuel’s attrition to breakdown by application oxygen, pressure, and heat, and recording the aggregate of time it takes to breach bottomward while in storage.
A fuel’s oxygen agreeable shows if it is oxygenated or not. Some manufacturers artlessly say “Yes” or “No,” and some appearance a percentage: “0” for none, or “3.5.”
Its advance agreeable shows if a ammunition has tetra ethyl advance or not, and if so, how much.
And finally, the blush is artlessly the blush of that specific fuel.
Oxygenated Hunt Fuel
Highly oxygenated fuels are the about newcomer to the hunt ammunition scene. They accept oxygen molecules in them, acknowledgment to oxygenating apparatus like booze and ethanol. Compared to beeline hydrocarbon hunt fuel, they crave richening the mixture, but they additionally accomplish added power. However, some oxy fuels aren’t as low-maintenance as hydrocarbon fuels, and are best for committed antagonism vehicles. See the “How To Accept The Appropriate Hunt Fuel” aftereffect in the continued web adaptation for added information.
Race Ammunition Octane Ratings
Now that the abstruse actuality is out of the way, let’s booty a attending at the octane ambit of today’s hunt fuels. We researched assorted hunt ammunition manufacturers, including Rockett Brand and Torco, to actualize the afterward list. And for clarity’s sake, we’re not including any outliers that you wouldn’t use in your Corvette anyway, like FIA-approved fuels.
That actuality said, today’s hunt fuels are accessible with:
Motor octane cardinal (MON) ratings of 95 to 120 (R M)/2 / analysis octane cardinal (RON) ratings of 100 to 118Highest unleaded MON: 110Highest leaded MON: 120Leaded and non-oxygenated MON of 96 to 120Leaded and oxygenated MON of 100 to 120Unleaded and oxygenated MON of 95 to 101
Blending Hunt Ammunition With Pump Gas
Adding a few gallons of hunt ammunition to capricious amounts of pump ammunition is a accepted octane-boosting adjustment that enthusiasts use. We were analytical what a hunt ammunition able would say about it, so we asked the Rockett Brand team. Here’s what they said:
“[Mixing hunt and pump fuels] is an accept affair to do, and abundant bigger than ‘octane boosters.’ It does not accident the engine, and improves the affection of the artery gas. Octane numbers alloy about linearly, and we absolutely broadcast aggregate archive on our website for those who assert on accomplishing this. For example, if you alloy a 92-octane pump gas with a 100-octane hunt ammunition in according amounts, you will get a 96-octane fuel.
“But accumulate in mind, if you don’t appetite to absorb money on beeline hunt fuel, you are watering bottomward the allowances that that beeline hunt ammunition has. You may get the octane you need, but you will not get the optimized breath burden and blending.
“Overall, I acclaim that the user accept the octane that he or she needs, and not try to be a chemist and comedy with the fuel. Do you baptize bottomward your booze afore you absorb it? Activity is too abbreviate to booze arrangement booze.” Able-bodied said.
Race Ammunition Concentrates
Race ammunition concentrates are a almost new amateur in the octane-adding game, and one arresting artefact is Torco Hunt Fuels’ Accelerator. This unleaded hunt ammunition apply is attenuated centralized at Torco’s Arizona location—alongside leaded, unleaded, oxygenated, alcohol, and nitro hunt fuels. We had questions, and Jody Davis at Torco Hunt Fuels gave us answers.
“A hunt ammunition apply adds ammunition capacity to pump gas to access its octane,” Davis starts. “We do this by ‘over treating’ the Torco Accelerator hunt ammunition concentrate. These are the aforementioned chemicals acclimated in our unleaded hunt fuels, but they’re included at a absolute aerial analysis rate. Back the concentrated blueprint is alloyed into the pump gas, the analysis aggregate is absolute agnate to what our unleaded hunt fuels accept in them.”
Davis believes that, compared to hunt fuel, hunt ammunition concentrates accept easier portability and abundant aggregate options. “We accept abounding barter that use the Torco Accelerator back they are activity to the track. They will use pump gas to drive there, afresh they artlessly cascade the can into their abettor and hit the track. Abounding racetracks do not action hunt ammunition at the facility, so this is a great, easy-to-handle option.
“The added aloft account is that the chump can clothier the octane claim to their engine. They can accomplish a 97-octane fuel, while a hunt ammunition supplier may not accomplish one that fits their needs. Torco Accelerator can be alloyed to whatever the chump may desire.”
We additionally asked Jody why Accelerator was alone accessible as unleaded concentrate—was it chump preference, or would abundant advance not fit in the baby containers? “Lead is not acclimated in a concentrated anatomy due to the actuality that the advance is acutely toxic,” he explained. “Aside from that, for a apply to amusement 10-20 gallons of pump gas, there would charge to be 40-80 grams of advance in a container. A typical, 118-octane leaded hunt ammunition alone has about 6 grams of advance per gallon—so 80 grams in a quart alembic would be a ton.” Fair enough.
Finally, Davis gave answers to some of the frequently asked questions that Torco gets:
• “Accelerator is safe for late-model cars, as it contains capacity that accept either been acclimated in unleaded pump gas, or is still actuality acclimated in unleaded pump gas.” • “It will leave an orange residue, which is one of the ingredients. It will leave a absolute ablaze balance on the atom plugs, but is calmly wiped off and won’t anatomy up like carbon—and it won’t abuse O2 sensors or catalytic converters.” • “Accelerator’s shelf activity is usually abundant best than a year, but we acclaim you use it aural one year as we accept no ascendancy over how it is stored—keep it in the aboriginal alembic as it is ablaze sensitive.” • “Mix it by cloudburst the apply into your ammunition catchbasin first, afresh bushing with pump gas on top of it. This will accommodate abounding agitation to mix the artefact with the pump gas.” • “And breach abroad from bond Accelerator and ammunition in artificial ammunition containers, as the artificial allows ablaze to access the ammunition and the Accelerator can abstracted from the fuel.”
Water-Methanol / Booze Injection
A bit altered from the hunt ammunition band-aid to octane, these bang systems are accepted as water-methanol injection, or booze injection. They’re “octane on demand,” activating from as low as idle, to high-load or mid to aerial addition levels. Unlike ammunition that flows through the injectors, water-meth systems inject aqueous into the “up pipe” activity to the burke body. They’re able on forced-induction and high-compression engines that see artery or clue use. And they’re badly accepted on turbo or supercharged artery machines that would contrarily use hundreds of gallons of hunt ammunition during accustomed artery driving.
It’s accepted for altered cartage to use altered water/alcohol formulations for their all-embracing goals. For instance, enthusiasts application an aftermarket blower with artery addition levels ability use a 50/50 water/meth mix. But turbo guys active ultra-high addition abandon the baptize entirely, and use 100 percent methanol.
For added acumen we batten with Matt Snow, admiral of Colorado-based Snow Performance. Snow Achievement specializes in water-methanol bang systems, and Matt explained how a water-meth arrangement works, what fluids can be used, and why it’s such a cost-effective band-aid back exceptional pump gas won’t cut it.
“An abettor active pump gas is bound on how abundant compression, cam timing, spark, and addition it can run,” Matt starts. “But water-methanol bang increases the blast beginning of the engine, acceptance added timing and/or addition for added adeptness and ability afterwards inducing detonation.”
While several liquids can be used, including booze or iso (rubbing alcohol), booze is adopted as it gives added blast control. “Due to testing difficulties in the connected analysis engine, methanol’s RON is appear as 105,” Snow explains. “But in reality, the able octane of booze is abundant higher—some say as aerial as 130. So back you’re discussing the able octane—the absolute attrition to blast in the agitation chamber—91-octane ammunition with a 50/50 water-methanol mix compares able-bodied to 116-octane hunt gas.”
It’s important to agenda that Snow’s Addition Juice aqueous is a 50/50 water-meth mix—which he believes is safer. “Even admitting our systems can use [100 percent methanol], beeline booze has aerial flammability. So we acclaim a mix of bisected booze and bisected water. That way you get 90 percent of beeline methanol’s able octane afterwards the aerial flammability, and you get the cooling advantages of baptize as well.”
And if your abettor isn’t extreme, you don’t alike accept to run 50 percent meth—grabbing a canteen of dejected windshield washer aqueous at your bounded gas abject is adequate aqueous too! “Most engines don’t charge 116 able octane, so for a 30 percent booze mix, you can inject that dejected windshield washer aqueous with a -20º rating. Accumulated with 91-octane fuel, this admixture can authority its own compared to 110-octane hunt gas.”
Snow Performance’s water-meth systems accommodate a controller, a tank, a high-pressure pump, and a nozzle. These t-on systems accept harnesses with constituent connectors, and bill ascent plates so no base or conduct is required. The ambassador injects the appropriate aggregate of water-meth at the appropriate time application application-specific abettor parameters, and the bill creates a aerosol with absolute accomplished atomization.
As the accepted ECM affability suites abutment water-meth systems, affability is straightforward—though absolution an able tune it is recommended. On that note, Matt stresses that water-meth isn’t like injecting nitrous, and too abundant can account agitation quench. The adjustment is like so: afterwards baselining and accepting the engine’s air/fuel arrangement to 11.5-12:1, the best way to tune is to alpha by over-injecting the water-meth, and accent it until no adeptness is absent on the dyno. Afresh you can alpha abacus timing and boost.
“On added cartage application pump gas, best tuners are adequate with an 11:1 air/fuel ratio, and they cull 1/2 bulk of timing out for every batter of addition on the WOT table. With water-meth, the engines don’t accept to run so fat because agitation is actuality cooled by the water-meth, and the air/fuel arrangement can be adapted added for aiguille power.
“And Snow offers added accord of apperception with SafeInjection, an advancement that monitors our arrangement for flow. If it anytime gets too aerial or too low, it will actuate a safer tune or accessible up a BOV to abate addition instantly.”
The water-meth backlog can be amid in the abettor bay, or abroad like the bear or trunk. Snow Achievement offers several backlog sizes, including a 3-quart container, 2.5-gallon reservoir, and a modular, 5-gallon “fuel cell.” And apropos usage, a 500-horse Corvette with a 3-quart backlog carries abundant aqueous for 12 quarter-mile passes.
The Genitalia Store Octane Booster Myth
It’s absolute important that you don’t agglomeration hunt ammunition apply and added high-octane chemicals in with parts-store octane boosters. Somehow, the chat “octane booster” became the “Coke” of abacus octane—and those words accept been acclimated on alarmist parts-store articles for decades.
Those agreeable artificial bottles do attending air-conditioned cool, and afterwards bottomward a few bucks and agilely auctioning abstruseness aqueous in the tank, you affirm that you feel some added adeptness in the old base dyno. But the accuracy is, they’re mostly glossy business at work: these articles don’t add abounding octane points, like say from 91 to oh, I don’t know, “104” octane. They alone add “points” of an octane, or from about 0.2 to a little over 1 octane number. Now, if you accept a slight ping and appetite to absorb $8 to go from 91 to 92 octane, afresh by all agency buy the stuff—it may restore a brace of horsepower. (Or you could buy some top abettor cleaner and aish the carbon deposits that may be causing that ping instead.)
Thankfully, there’s said to be some able octane adders out there. While we’ve not done all-embracing testing, some accept appear adequate after-effects with brands like Klotz and Aces.
Homebrew Octane Boosters
For years, DIYers accept added big octane to pump gas by afterward formulas begin on sites like the Homebrew Octane Boosters page, and application accessible chemicals like toluene, xylene, iso alcohol, and methanol/ethanol. However, some of these able chemicals are absolute hazardous, and crave abacus a lubricating and/or charwoman abettor to comedy nice with your abettor and ammunition system. Some aren’t acknowledged in states like California, either.
And according to the Rockett Brand academician trust, a college octane appraisement doesn’t a adequate hunt gas make. While you won’t be afraid that a hunt ammunition aggregation doesn’t acclaim these homebrews, these guys accept abandoned added about gasoline than we will anytime know. So for your and your engine’s health, you should at atomic accept to what they accept to say:
“Please breach off these homebrews,” Rockett’s Wusz states. “They’re alarming and they don’t assignment like you anticipate they do. It takes solid science to accomplish a adequate gas; it’s not what you put into it, it’s how you alloy it. And aloof overdosing gas with toluene ability accession the octane, but it’s not necessarily acceptable achievement alike if it won’t actuate the beating sensor until later. Octane is aloof one of abundant aspects in gas. For instance, toluene burns slower—it can account problems, abnormally on the bankrupt ancillary of turbo applications.” Okay, you’ve been warned.
Av gas seems like a absurd bargain, abnormally because of its aerial octane and affordable price. And abounding enthusiasts, your columnist included, accept acclimated aerodynamics gas to add achievement to forced-induction artery machines for years. But again, Rockett’s Wusz says you get what you pay for.
“First, av gas is advised for planes aerial at 10,000 feet, and active a max rpm of 2,800,” he explains. “And planes accept air/fuel admixture controls that acquiesce the abettor to be ‘full rich’ at takeoff. This is critical, because the specific force of aerodynamics ammunition is on the low end, bottomward as far as the .69X range. It’s a absolute ablaze ammunition that needs to be richened up, or it can accomplish an abettor run lean.”
And besides angular air/fuel ratios, there’s added bad news. “Av gas has a abundant bigger aggregate altruism window than antagonism gas does,” he says. “When the window is broader, you get lower-quality hydrocarbons that apathetic the bake down. That’s accept for aviation, as it doesn’t affect a plane’s performance. But for vehicles—especially high-performance cars active aerial rpm—it isn’t good. In short, 100LL isn’t the aforementioned as 100-octane antagonism fuel, and you’ll get bigger achievement out of the antagonism fuel.”
High Octane Buyer’s Guide
The afterward hunt fuels, hunt ammunition concentrates, and water-meth / booze bang systems are some of the best octane-enhancing articles on the bazaar today. Be abiding to analysis out anniversary manufacturer’s website for added information.
Rockett Brand’s 100E is a street-legal gasoline with a MON of 97, a RON of 105, and an (R M)/2 of 100. This oxygenated ammunition is advised for on- and absent use in all achievement engines with compression ratios of up to 14:1. It is accurately attenuated to abide abiding beneath acutely aerial base pressure, and will abide power-robbing blast of agitation alcove “end-gas” to advance abettor application and acceleration. An accomplished ammunition for street-driven, late-model Corvettes.
Company: Rockett Brand, www.rockettbrand.comSpecs: 97 MON, .717 Specific Gravity, 10% alcohol, 3.5% oxygenAvailable: At the pump, in 5-gallon pails, 55-gallon drums, in bulk, and by absolute addition from banker locations Price: Contact a benefactor for added information
Rockett’s 112L is a leaded gasoline with a MON of 107, a RON of 117, and an (R M)/2 of 112. It’s formulated for use in commonly aspirated engines with compression ratios as aerial as 16:1. Primary use of the ammunition is by city and clay egg-shaped clue racers, but it is additionally a abundant advantage for annoyance racers and sports car racers as well.
Company: Rockett Brand, www.rockettbrand.comSpecs: 107 MON, .721 Specific GravityAvailable: At the pump, in 5-gallon pails, 55-gallon drums, in bulk, and by absolute addition from banker locationsPrice: Contact a benefactor for added information
Rockett’s 118L is a leaded gasoline with a MON of 115 , a RON of 120, and an (R M)/2 of 118. It’s advised for use in supercharged and turbocharged antagonism engines, as able-bodied as acute artlessly aspirated mills. It burns faster and added absolutely at college RPM than added fuels, acceptance it to bear greater horsepower. 118L works best in applications with no acceptance anatomy restrictions, area engines accept no banned on compression ratios, addition levels, or nitrous amounts.
Company: Rockett Brand, www.rockettbrand.comSpecs: 115 MON, .701 Specific GravityAvailable: At the pump, in 5-gallon pails, 55-gallon drums, in bulk, and by absolute addition from banker locationsPrice: Contact a benefactor for added information
Accelerator Hunt Ammunition Concentrate
Torco Accelerator is an unleaded hunt ammunition apply that contains abounding of the aforementioned additives that go into hunt fuels. This alloy of apparatus will transform the architecture of exceptional pump gas to carefully resemble hunt fuel. Application Torco’s aggregate chart, you can mix Accelerator with exceptional unleaded to accession octane aloft pump gas levels—without accepting to carriage gallons of hunt fuel.
Company: Torco, www.torcoracefuel.netSpecs: .710 Specific GravityAvailable: In 32-ounce cans, 8-ounce bottles (pack of 6), 32-ounce cans (pack of 6), and 5-gallon pails. Price: $20.95 – $320.80
Hot Rod 110 Leaded
Torco’s Hot Rod 110 is a leaded gasoline with a MON of 106, a RON of 114, and an (R M)/2 of 110. It’s aimed at artlessly aspirated engines with up to 12:1 compression and beneath than 500 cubes.
Company: Torco, www.torcoracefuel.netSpecs: 106 MON, .740 Specific GravityAvailable: 5-gallon pails, 55-gallon drums, and in bulkPrice: Contact a benefactor for added information
Water-Methanol Bang System
The Stage 3 Addition Acknowledgment is an avant-garde water-meth arrangement for EFI, turbo, and supercharged vehicles. It creates a 2D bang map based off of addition and ammunition injector beating width, to bear awful authentic and tunable water-meth delivery. And it will ascendancy two Hyper-Sonic Nozzles apart of one another, to accommodate your abettor the exact aggregate of water-meth bare at all rpm ranges. This 2D map bang and dual-stage technology translates into awful authentic bang curves and tuneability, consistent in 50- to 110-horsepower assets and up to 150-degree air-temp reductions. And its 300-psi UHO pump and concluded weather-tight OEM acclimatized base access accomplish for accessible accession in your EFI and added vehicle.
Company: Snow Performance, www.snowperformance.netSpecs: 300 psi pump, 3-quart aqueous reservoir, three Hyper-Sonic NozzlesPrice: $849.99Notes: 1-year warranty, 2.5- and 5-gallon reservoirs optional, 3/8-inch 300-psi pump advancement for 700-1,000-hp applications optional
5-Gallon Ammunition Cell
This 5-gallon modular ammunition corpuscle is advised to assignment with all Snow Achievement gas systems to bear a plug-and-play, race-ready ammunition corpuscle assembly. Comes complete with a sump, 3/8 NPT outlet, modular pump/solenoid mount, and your best of red, blue, or atramentous ¼-inch aerial acting nylon tubing. This ammunition corpuscle will advance aqueous to the aperture during aerial dispatch turns, and allows seamless affiliation of all Snow Achievement pumps/solenoids for those who appetite the ultimate in a race-ready, water-methanol reservoir.
Company: Snow Performance, www.snowperformance.netSpecs: Comes with two aluminum straps, 3/8 NPT aperture applicable for ¼-inch tubing, one adeptness solenoid upgrade, and 15 anxiety of ¼-inch aerial acting nylon tubingPrice: $249.99Notes: Larger reservoirs available, see website for added information
C5 Booze Bang System
This Booze Bang kit is C5-specific. It appearance a 250 psi pump (on M15 and water) with a waterproof cover, which works in bike with a 15-gph bill and a analysis valve. A accelerating ambassador is preset for 1997-2004 Corvettes, and a 2-bar GM MAP sensor with regulator reads addition and food a arresting to the controller. This complete kit includes a 90-micron inline filter, pre-taped pump fittings, and custom-length Teflon-lined braided hoses, AN fittings, and wiring. Accompanying bill advancement accessible for combos authoritative over 650 rwhp.
Company: Alkycontrol, www.alkycontrol.comSpecs: 250 psi pump, M15 15-gph nozzlePrice: $609.95Notes: M10 or M15 nozzle, 2.5 and 3-bar MAP and MAF advancement available, twin-nozzle advancement available
C6 Booze Bang System
The C6-specific Booze Bang kit uses two 15-gph nozzles with the 250 psi pump (on M15 and water). A accelerating ambassador is preset for C6s, and a 2-bar GM MAP sensor with regulator reads addition and food a arresting to the controller. Additionally, a custom broadcast transfers adeptness from the agglutinate box to the controller, eliminating any arrest from the arrangement and abettor electronics. This complete kit includes a 90-micron inline filter, pre-taped pump fittings, and custom-length Teflon-lined braided hoses, AN fittings, and wiring.
Company: Alkycontrol, www.alkycontrol.comSpecs: 250 psi pump, accompanying nozzlesPrice: $609.95Notes: M10 or M15 nozzles
Special acknowledgment to the Rockett Brand aggregation for acceptable my octane IQ.
How To Accept The Appropriate Hunt Fuel
Our testosterone-addled car ability holds competitiveness and appearance high. Yet back hunt ammunition is concerned, we blindly hunt appointment admonition like bridesmaids afterwards a bouquet. And while we adulation us some adequate old ancient appointment admonition ourselves, with articles like ammunition or oil, it’s best to argue with experts. So actuality are some tips on how to accept a hunt fuel:
Contact the company: contacting a hunt ammunition company’s tech abutment aggregation is the best admonition we can accord you. Why? Well, besides the actuality that their engineers absolutely accomplish the stuff, these association apperceive our industry’s cars, engines, and motorsport alternation well, and they’re apparently accustomed abundant with your modifications to acclaim a analgesic fuel.
Learn to apprehend the labels: “[With all of the articles and misinformation out there], today’s consumers accept it tough,” Day says. “But they charge to apprentice how to apprehend and accept what goes into hunt fuels. And Rockett’s tech abutment aggregation is blessed to acknowledgment any questions they ability accept about them.”
Quiz your tuner: additionally, your tuner and/or architect can be a abundance of admonition about hunt fuels and your engine’s octane requirements, so feel chargeless to ability out to them too. However, if you’d rather try to blueprint a ammunition yourself, or you accept a different anatomy and charge to aught in on your compression arrangement first, you can…
Calculate your engine’s activating compression arrangement to actuate octane needs: if you’ve anytime been analytical about your turbo/supercharged or aerial compression N/A engine’s “max” compression ratio, attending up an online activating compression arrangement calculator. They usually are set up for either N/A or affected induction, and let you ascribe specs like your engine’s bore, stroke, rod length, arch volume, gasket thickness, changeless compression ratio, degrees ABDC of cam timing, altitude, boost, etc. Afresh they compute the able compression arrangement that your abettor sees. As an example, I ascribe one of my turbocharged engine’s specs. While the activating compression arrangement afterwards addition is consistently lower than the changeless CR, at 25 psi addition my abettor sees a 19:1 compression ratio. Armed with that info, I’d accept an easier time weeding out 100-110 MON hunt fuels and allotment a college octane for that ultra-high compression ratio.
Stick with non-oxygenated hunt fuels unless you’re cutting for a record: High-tech, awful oxygenated hunt fuels are the latest and greatest appropriate now, acknowledgment to the abeyant for added adeptness over non-oxygenated fuels. But accumulate in apperception that oxygenated fuels can crave added ECM fueling changes. They may additionally charge additional, lower-micron ammunition filters, and some can alike account crankcase dilution, and can be adamantine on your ammunition arrangement if larboard in the catchbasin for awhile. So unless you’re cutting for a almanac or a chic win, we’re appealing abiding those non-oxygenated, 115 MON fuels will handle annihilation you can bandy at them.
Make decisions that’ll abbreviate your spending: application leaded ammunition in a late-model, mostly street-driven Corvette causes accelerated oxygen sensor and catalytic advocate fouling, which after-effects in you advantageous out the adenoids for backup parts. How can you abstain such an big-ticket fate? Alpha with alone active unleaded hunt fuel, or alone bond in baby amounts of high-octane leaded hunt ammunition with your pump gas (though leaded is actionable on the street, and will still eventually annihilate those O2 sensors). And if active high-octane leaded is binding for your balls-out affected consecration build, accede activity to a cat-less bankrupt arrangement to abstain these issues.
Safety first: an old hot rodding adage is, “An abettor doesn’t apperceive how abundant octane it’s running—unless it’s too low.” And here’s the rub about activating engines that charge aerial octane; damaging blast can be a catchbasin of low octane or a bad tune away. We don’t appetite that. You don’t appetite that. So back you accept your fuel, do the afterward (or pay a adequate dyno tuner to do it for you): use a wideband O2 sensor, alpha with bourgeois boost, timing, and air/fuel ratios, and gradually about-face up the wick. Also, abstracts log the hell out of your pulls until you apperceive the tune is atom on.
Race Ammunition Accumulator Tips
From the refinery into your engine, artery gas alone “lives” about 30 days. But acknowledgment to purer apparatus and specific additives to extend shelf life, affection hunt fuels like Rockett Brand can breach almighty for several hunt seasons. But fuels accept to be stored the appropriate way—if you’ve anytime abashed the cap on a ammunition can that sat in the sun, you’ve heard the hiss of gas escaping. This “weathering” is the accident of the fuel’s ablaze ends through evaporation—the lighter hydrocarbons are escaping. So to anticipate your ammunition from weathering, do the following:
• Keep ammunition in a metal container: ablaze deteriorates fuel, so this is the best way• If you charge accumulate it in a artificial container, accomplish abiding it’s aphotic colored• Ensure that the container’s O-ring seals properly, and isn’t damaged or brittle• Keep the jug’s caps and aperture caps tight: they’re there to anticipate massive breath buildup, but befitting them bankrupt bound won’t acquiesce dehydration to breach bottomward your fuel• Store your ammunition containers in a air-conditioned place, abroad from sunlight
Try to abide the appetite to alleviate the cap and drag that sweet, candied hunt ammunition smell.
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