Procharger Compression Ratio Chart

The G92 Option was available when ordering either the Corvette or the Camaro throughout the 1980's and early '90's. While the original L88 could be an ornery beast that thirsted for high-octane fuel, today's version uses a much more pump-friendly 10:1 compression ratio. 200" compression height and are designed to fit all 4. 080" the given ratio is likely fairly close. For every signal that goes over the threshold, it gets compressed according to a certain ratio. You must know the mechanical compression ratio of your engine to get reasonable results from this calculator. The ratio is where you determine how much compression you are going to apply to a signal that goes over your threshold. 5:1 compression, 2. Since 10:1 without an intercooler will only handle about 7-8lbs, that equals 40% increase on their chart. Q: Why does retarded timing attribute to overheating?. 075" valve lift. The following chart shows the effect that various amounts of boost will have on the compression ratio. E85 is a highly oxygenated fuel consisting of 85% ethanol and 15% gasoline. It was introduced with a 2-bbl carburetor in 1971. The premise is simple, even if the execution is not. To determine the compression, three things about the engine must first be known: block height, connecting rod length and crankshaft stroke length. Meet the 2016 Mustang. 35, determine the temperature and pressure at all points of the cycle. If you want to add some serious grunt to your F-Body, a power adder is a definite way to go. Depending on the calculator used the compression ratio is either right around 9. 4 2V, 3V, and 4V engines. vortech vs. Air molecules have enough mass and weight so that if you build a device to propel them from point A to point B quickly enough, they’ll tend to keep moving in that direction. Some claim that part load benefits can be had for compression ratios as high as 23:1 [3517]. ATI is proud to be the first manufacturer to offer a self-contained, gear driven. Sunoco Standard is designed for compression ratios up to about 13:1 in conventional V8 engines with iron cylinder heads. 350/290 Help: Another HP/torque estimate on a 350?? Compression ratio calculators Dynamic compression ratio. The compression ratio determines a lot of factors. It’s based on a combination I’ve built many times, intended for use with a centrifugal blower such as a Vortech S-trim or T-trim, or a Procharger P-600 or D-1. This is our first choice in Milwaukee 8 cams that is not designed for bolt-in-use. For a 7-psi boost level, N1 is 38 teeth and N2 is 27. Due to pinging (detonation), the compression ratio in a gasoline/petrol powered engine will usually not be much higher than 10:1, although some production automotive engines built for high-performance from 1955-1972 had compression ratios as high as 13. The supercharger mounting bracket may contact and damage the abs line,. The chart below helps to. (Procharger, much more efficient than the roots = less heat and. Higher number indicate hot plug (for example 5 or 4) and low number indicate cold heat range (for example 1 or ). To find more power, we enlisted the aid of ProCharger, who supplied one of their P-1X centrifugal superchargers. RBS has years and years of experience to help the first time beginner to the seasoned veteran produce the most power and reliability on their supercharged engine. The multiplier value assumes the use of 91 octane pump gas and an appropriate compression ratio. Simply locate an engine's compression ratio at the bottom of the chart and trace upwards to determine the maximum reliable boost level. Compression Blower Boost Pressure (psi) Blower Boost Pressure (psi) Ratio 135789 10 11 12 15 6 6. I keep getting the question, "What is the compression ratio of your engine", when I discuss adding a supercharger with one of my friends. Displacement. But the SKYACTIV-X merges the diesel engine's compression ignition—and its efficiency and low-RPM grunt—with the gas engine's high-RPM responsiveness, creating an engine that pulls strongly. Let's look more closely at the turbo's we selected. Texas Speed & Performance is your one-stop shop for all LS and Gen 5 LT1 & LT4 performance parts and engines! We are among the largest LS and Gen 5 LT1/LT4-specific shops in the country, and we machine and assemble all of our engines, camshafts, and Precision Race Components cylinder heads in house!. E85 is a highly oxygenated fuel consisting of 85% ethanol and 15% gasoline. 5:1 or more on alcohol or E85. 0% is not uncommon. Use our Impeller Speed calculator to select the right size pulley for your application. Q: Why does retarded timing attribute to overheating?. The pistons are then listed first by engine displacement (360,383,400,etc. The "Final Compression Ratio" of the engine/blower combination is the determining factor in fuel octane requirements. Both are machined on a 5-axis CNC, work well in naturally aspirated engines, and with a 75- to 150-hp shot of nitrous. Is there anyway I can run boost, even a small amount, with my current setup or will I need to go with a lower compression. The F3 has a CNC-machined billet housing and impeller, billet steel shafts and gears, and high-speed bearings capable of handling overdrive ratios of 5. Any self-respecting Ford enthusiast will be somewhat familiar with centrifugal superchargers. 4 stroke, 3. This will give you an idea of what happens under boost and also how you should plan your motor for your target altitude whether it is for racing or day to. Give us a hand!. You must know the mechanical compression ratio of your engine to get reasonable results from this calculator. Thus intercoolers and methanol injection systems. 3:1 compression ratio , 2amp vertex mag, and A/F ratio of 3. If I have 405HP (I should be close to that), and 10:1 CR, add a Procharger with the same 7lb boost, I should get around 40%. 4 HEMI performance parts on the market today! If you’re looking to stroke your engine out to a 426 CID monster, add a supercharger, exhaust system, or any other performance modification we have you covered. 6:1 compression ratio with the relatively large combustion chambers. 35, determine the temperature and pressure at all points of the cycle. you can also run the meth-alcohol[windshield]fluid injection instead of the intercooler to go a different direction. Your dynamic compression ratio is 6. 1:1 and that's exactly the combination we safely ran on the dyno. Compression ratios of 10:1 and higher require lower boost levels, higher octane fuel, intercooling, or some combination of the above. High boost pressures with high compression ratios. The above chart shows the effective compression ratio of your engine, which combines the static compression ratio with the amount of supercharger boost. The ProCharger F3 centrifugal supercharger is the company’s heavy hitter, capable of supplying enough boost to get a well-prepped doorslammer into the sixes—or to win Drag Week. Get equipped with tech upgrades, replacement parts, and official ProCharger merchandise and apparel. 898 for stock bore Stroke (stock. Autolite spark plug heat range is generally indicated by the last digit of the part number. There are two methods you can use to calculate an engine’s compression ratio. 0 to 1 when boosting, but look at todays cars, I boosted my v6 challenger with 15 lbs of boost and the compression ratio in a 3. Also visible in this cutaway are the SRT Hellcat HEMI engine's unique reverse-dome pistons which yield a boost-friendly 9. BBC Open Chamber Big Block Chevy Pistons 489. mostly my opinions and what has worked oner the years. When you combine your engine’s static compression with boost pressure, you get the “effective compression ratio. It is imperative that you follow all of the instructions in the order they appear in this installation guide. the other 2 i believe are 330 HP. 100-inch of camshaft lift up to. For Intercooled ProCharger EFI/TPI applications with compression ratios less than 9. Note that for most street applications with 92 octane pump gas, you should keep your effective compression ratio below about 12. Read this entire manual before you attempt to install your ProCharger kit. That required ordering new JE asymmetrical flat-top pistons, but all other engine components return to action — save for new bearings, gaskets, rings and valve springs. Remember though, tuning in the area. 0 bar) boost, Roots blowers hover between 50% and 58%. Your effective boost compression ratio, with boost of 12 PSI is 13. If you have the ratio set to 3:1 and the threshold is set to -10dbs, for every 3dbs your audio goes over the threshold it's only going to allow 1db to actually pass. Find car prices, photos, and more. Your camshaft specifications call for an inlet valve closing of 47 degrees ABDC (after bottom dead center). So no, no chart. 5 seem to be the Best for the Heavily Boosted Modular Motors but there's also lots of 99-01 Cobra guys with bolt on ProCharger and Vortech Kits running the stock higher compression, it's in the Tune!. That adds up to a. The turbocharger provides air at 200. Now the compression is 9. The actual "Performance Axle Ratio" varied from year to year. Dynamic Compression is determined by the camshaft design along with the efficiency of the induction system. Wallace Racing BACK to Calculators Todays date is 1/14/2020 These equations are for recreation only. Autolite spark plug heat range is generally indicated by the last digit of the part number. Generally 10:00-1 is the absolute maximum compression ratio one should consider using a power adder with. Yes I realize now its a Procharger deal, helps explain the RPM range and the torque curve. Ray Hall Turbocharging - Java compression ratio calculator. Use this chart shown below as a guideline to determine the proper amount of maximum boost level for a specific application. The idea is to maximize compression ratio at low load—possibly even higher compression ratio than for Option 2. Compression ratio: 9. In a quest to reach 1,500-plus horsepower this season, the Blown Z team is stepping up to a larger ProCharger for its 388ci LSX engine. This will be 4. Does anyone know the compression ratio of a 2007 Charger R/T 5. 4 L merc I/O, in either 1990, 1992, or 1996. In conjunction with PDK, fitted as standard, the system operates with an electronically regulated and fully variable rear differential lock. After a year hiatus, the Breakout returns for 2016 in CVO form with a variety of changes (upgrades?), and for a price tag $800/$1,200 less than its predecessors ($26,499/$26,899 MYs 2013/2014 vs $25,699 MY 2016). Compression Ratio Calculator v2. 3 for Windows XP/Vista/Win 7/Win 8/Win 10 Computer Program to Calculate Compression Ratio, Boring, Stroking and Other Common Engine Building Dimensions. With a lower compression ratio, an engine can safely handle more boost, everything else being equal. Compression ratio (x:1) 10. BD, For your build, and if the chamber volume is accurate at 84cc, I get your effective compression to be 9. FOR YOUR COMPRESSION RATIO WITH THESE PISTONS PLEASE SEE THE CHART BELOW. However, I am not sure about the mechanical strength of the components. Yes, it is possible to change the compression ratio without varying the stroke length and bore dia. Dynamic Compression Ratio Explained. The LSA is part of GM's 4 th-generation V8 Small Block engine family and is. Bullet Cams--Cam Recommendation Form 8785 Old Craft Rd. Home; web; books; video; audio; software; images; Toggle navigation. Many current models sport excellent ratios and we’ve listed a few examples here for you. 78" bore by 3. 010 piston deck height. 500 dome race pistons are designed to be cut down to achieve your desired compression ratio, call for details 1250 & 1275 Kit Options Depending on the year of your bike, other components are necessary for a successful 1250 or 1275 conversion. procharger compression ratio chart. Description. 000 bore Stock Cam (like 110 or 112 grind, not sure the stock stats) Mine 7. MACH 1 Engine Specifications Description Specification GENERAL SPECIFICATIONS Displacement 4. 5:1 to cope with the added boost from the supercharger. 75, mmr stage 3 heads and stage 3 blower cams, maxed out v2 for now, and the eddy intake. Give us a call today and let us put. There are about the same number of E85 pumps in town as there are race fuel pumps (half a dozen of each). i found a chart comparing static compression ratio to dynamic compression ratio and i see that for 15 psi (which is what im going to go for) they want like 6. With this camshaft your dynamic, or effective stroke is 3. Get accurate compression without the guesswork! Get your engine's optimal compression ratio and total displacement in no time flat! Just complete your engine setup, click calculate, and you're on your way to maximum performance. Their plan; take a stock block 5. 8 kit is Kenne Bell factory engineered and tuned for 13 psi with pump gas. Welcome to the EFILive Forum. I am building a 401 currently for a ProCharger setup and running around 9. Note I'm looking for stock measurements. It has a higher compression ratio—11. 345 Edit The largest DeSoto engine for 1957 was the DeSoto Adventurer offering 344. 5:1 versus 10. VE is an indicator of how well the induction system does its job of filling the cylinders. | 2097 bart ave. An intercooler or charge air cooler is an additional component that resembles a radiator, except air flows through the inside as well as the outside of the intercooler. It is interesting that this engine vs. All other features are the same as previous years iron heads. Modern technology allows our racing generation to get the best of both worlds. The LSX 454 crate engine is a 21st-century upgrade to the legendary Chevy 454 big block race engine - see images, dyno specs, installation info and more. I used the keith black compression calculator and if I use a 302 head with a. Blower Pulley Ratio and Boost Charts. 5:1 compression motor may have cranking presures of 165 psi whereas another 10:1 motor may show 190 psi. the higher your chamber pressure is the more prone you are to detonation/pre-ignition. Supercharged 396 LT1 Build This article will describe the components and details of a 396 cubic inch LT1/LT4 for a supercharged application. Determined by deck, chamber volume, piston notches/dishes (if applicable) and engine capacity. Below that is a. 5:1 compression ratio. If your engine is smaller than this, your boost will be higher. We suggest first checking your cranking compression and then consulting your engine builder before. -Easy to use formulas for the professional or novice will show you how engine changes like compression ratio and air fuel mixture effect your engine's power and torque outputs. Experience True Luxury with LLOYD'Z Supercharger Kit for Indian Motorcycles! Intended for the rider looking to stand-out far ahead of the crowd, this kit will raise power output to approx 150 horsepower and 150 ft-lbs torque. Are you sure on that compression ratio? That seems very low, especially if you are running forged pistons. 050 compressed gasket, 42 cc combustion chamber (I THINK that's right for stock heads) negative 14 dish and. This will vary based on the type of fuel being run and the engine aspiration. 7L converted into a diesel. If your engine is larger, your boost will be lower. I think they are the biggest high impedence injectors out there right now. For Release: Thursday, Jan. Along with a dedicated line of in-stock pistons, we specialize in the manufacturing of custom, high-end, forged aluminum Import and Domestic piston applications, for use in high horsepower motorsports. 5: 1 pistons with 8. : JM Striker Cylinder Heads - Engines SuperChargers Tuning and Controllers Valvetrain Components Brakes Lowering Kits Rear End Fasteners Carburetors Throttle Bodies Water Pumps Nitrous Kits Tires Custom Parts Development Cold Air Kits Fuel System Components Clutches Wheels Traction Components Race Wear and Accessories Wiring harness and Accessories Electric Cooling Fans Radiators and. when he got it later it was not notched. The impeller speed is dictated by engine rpm, crank pulley-to-driven pulley ratio and the final internal gear ratio. If you start out with a lower static compression ratio then it will take more boost to acheive a higher compression ratio. Holley carburetors powered every Monster Energy NASCAR® Cup team and nearly every NHRA® Pro–Stock champion for four decades. S&S Cycle 124ci T-Series Hot-Rod Motor ($6,295, part #310-0400) The primary side of S&S Cycle T124 Engine. I have another set of forged dished pistons that take the compression ratio back to around stock, 9. Compression Ratio 8. 075" valve lift. 8:1 compression ratio. Compression ratio is cylinder volume with the piston at BDC versus cylinder volume with the piston at TDC. 5cc piston volume. Cylinder heads have highlighted fins and are available in natural aluminum finish only Also available in stock bolt pattern. Q: Why does retarded timing attribute to overheating?. 5 to 1) cast pistons. If you have the ratio set to 3:1 and the threshold is set to -10dbs, for every 3dbs your audio goes over the threshold it's only going to allow 1db to actually pass. Cylinder deactivation, which darkens four cylinders during light load situations and/or highway cruising, is among the major carry-over items. Very good solid numbers, I hope to make between 550-600 with my 67mm, though closer to 600, my compression ratio will be 9:1 instead of 8:5:1 so that will help a tad. Read this entire manual before you attempt to install your ProCharger kit. 6 L) with square bore and stroke dimensions of 3. With a single 1050 cfm carb modified only with jetting and air bleeds, the car runs in the low 9. Trick Flow Specialties is a leading designer and manufacturer of high performance cylinder heads, intake manifolds, and engine components. 5 BSFC, so that is the figure we use for naturally aspirated engines. The leading manufacturer of universal supercharger kits for street cars, trucks, SUVs, boats, race cars, and more! Gain 50-80% more power using our bolt-on. It will raise your peak power higher in a 5. If you have the ratio set to 3:1 and the threshold is set to -10dbs, for every 3dbs your audio goes over the threshold it’s only going to allow 1db to actually pass. It also allows for a larger combustion chamber along with the. Camaro and Firebird: What You Need to Know About Superchargers and Turbochargers. We've already tried adjusting the Acceleration Enrichment chart in all ways, going up and down, RoC Blanking, everything, it has no effect. This is simple determination of rough engine horsepower output based on a "mean" cylinder compression ratio. 35, determine the temperature and pressure at all points of the cycle. He ended getting his bike on the cover of a major magazine at the time, and if I remember correctly, went 200mph with a supercharged 1255cc kit motor he also built. 0:1 to accommodate forced induction. Knowing how to read a compressor map is a must. With all of these components we also will see higher compression ratio and higher red line. What size fuel injector do you need for your Mustang or SVT Lightning? Read the excellent info below from our friends at Ford Performance Racing Parts! One of the more commonly misunderstood aspects of Electronic Fuel Injection (EFI) is how to select the correct size fuel injectors, fuel pu. I take those manufacture's compression ratio suggestions and throw them right out the window. 5:1 compression. The Nissan 5. What happens is the inlet air temps will rise when you compress the air more. Home; web; books; video; audio; software; images; Toggle navigation. 7L V8 'V' configuration. The LSA is part of GM’s 4 th-generation V8 Small Block engine family and is. Or sign in with one of these services. These P-V and T-S diagrams show two Otto cycles with different compression ratios. 5-1 but it takes good gas ALL THE TIME, NO EXCEPTIONS! Where it seems that you want to keep the car as a street car don't over do it. Double Overhead Camshafts, Chain Drive to Exhaust Cams, Secondary Chains from Exhaust to Intake Cams, Roller Finger followers with Hydraulic Lash Adjustment, Beehive Valve Springs. Cold air intake. Compression ratio affects the theoretical maximum efficiency, which never gets anywhere close to 100%, no matter how high the compression ratio (within reason - infinite compression ratio would give 100% maximum theoretical thermal efficiency, but friction and etc must still be deducted). Likewise if you've started out at a higher static compression ratio, then you will need less boost to reach the same dynamic compression ratio. The F3 has a CNC-machined billet housing and impeller, billet steel shafts and gears, and high-speed bearings capable of handling overdrive ratios of 5. In our attempt to help our customers understand performance and what makes an engine produce power we are going to explain the concept of dynamic compression ratio (DCR). 6 with 11:1 compression and Procharger D1 pushing 19psi. 045 gasket thickness, -. Supercharged 396 LT1 Build This article will describe the components and details of a 396 cubic inch LT1/LT4 for a supercharged application. what you need is a cylinder leakdown test to tell you exactly what is wrong with it. It was introduced with a 2-bbl carburetor in 1971. A pie chart is similar to a. 49 :1 corrected for cam timing, altitude, and rod length. For Intercooled ProCharger EFI/TPI applications with compression ratios less than 9. 8:1 compression ratio 4. Gen III LS1 5. What happens is the inlet air temps will rise when you compress the air more. Compression is a volume related term that refers to compression ratio. 6 diameter pulley that was supplied with the kit we ended up with a solid 10PSI of boost and 992HP. It does make the effective compression ratio higher with boost. 5L Inline 5 with a compression ratio of 9. This happens as the flame front moves from the ignition point, pressure waves in the combustion chamber crash into the piston or cylinder walls. You can calculate the BSFC for your engine , or estimate it using the fuel type and aspiration. It does make the effective compression ratio higher with boost. Enter Planned Blower Pressure in PSI At Manifold: Enter Present Engine HorsePower At Transmission. E85 seems to mainly be used on boosted applications for this purpose, but I have tuned several cars that were N/A, but running E-85, because of their 14:1 static compression ratio. 12, 2012, 9 a. With the thick Cometic. The pressure in the fuel rail and intake manifold should be maintained at a level to suit the optimum air/fuel ratio. 34!!!! Did I do something wrong here in my figuringthat seems pretty high. Our timing is 32 degrees advanced with 10:1 static compression. We recommend this cam be run between 11. 47 to 1, it will need good gas for sure. More parts get added all the time, and don't forget to give us call for info about complete kits, head units, intercoolers, pulleys and belts. Axle ratio The one size for all theory doesn’t actually work for torque converters. Many suppliers present airflow charts rated at each. ProCharger F1A Centrifigul Supercharger System (PHASE 5R is available with F1A-94 Head unit) Aluminum Intake Manifold; Alky Control Methanol Injection System Twin Nozzle; 2" Long Tube Stainless Steel Headers; Off Road 3" Mid-section with X pipe; Redline Custom Profiled Roller Camshaft (specs are required for build). There is quite a bit of terminology when it comes to automobile parts, and a person can get very easily confused. Compression ratio is a major concern when building a boosted motor. The rules are different for roots style blowers. This primary usage of E85 does not take advantage of any of its potential performance advantages. Dynamic Compression is determined by the camshaft design along with the efficiency of the induction system. maximum supercharger boost in psi = 14. Use our Impeller Speed calculator to select the right size pulley for your application. It also has the MSD boost retard on it. Welcome to the ProCharger Store. If using our high-speed bearings and belts, you can stretch this to 48,000 rpm. The reason you lower your compression ratio is because of the octane required to prevent detonation. Read this entire manual before you attempt to install your ProCharger kit. 5L Inline 5 with a compression ratio of 9. For pump gas (91-93 octane) applications, a compression ratio of 8. This is a "landing" page in my new website. 5-1 but it takes good gas ALL THE TIME, NO EXCEPTIONS! Where it seems that you want to keep the car as a street car don't over do it. Compression Ratio. While the original L88 could be an ornery beast that thirsted for high-octane fuel, today’s version uses a much more pump-friendly 10:1 compression ratio. 759 pin height and +1. 4601cc (280ci) Compression Ratio. i was under SB mopar cast kits. General Q & A - Optimum Air/Fuel Ratio for Supercharged Motors - This one is for the expert tuners: What are your views on what is the best WOT air/fuel ratio for a procharged motor running say, 7-10 psi of boost? I'm about to reinstall my M-3 on my new 540 and I am going to be doing some tuning with the aid of an. Home / Products tagged "procharger" procharger Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low. 4 L merc I/O, in either 1990, 1992, or 1996. 8 kit is Kenne Bell factory engineered and tuned for 13 psi with pump gas. This is the workhorse head for street / strip turbo and blower cars. procharger has a chart that shows base compression ratio and amount of boost you could run with and without intercooler. The first thing to consider when determining the mechanical compression ratio is whether the engine will use 92-octane pump gas or high-octane race gas. Similarly, if the temperature of the compressed air is lower, an engine will have a much higher detonation threshold (the point at which fuel ignites without a spark), and will be able to safely handle more boost. 4 HEMI Performance Parts Deciding what the next step is for your 6. If your engine is larger, your boost will be lower. 5:1 to 9:1 is recommended for boost levels of 8-10 psi. Static Pump Gas Race Gas. With a static compression ratio of 9. 0 compared to atmospheric pressure). garage doors open and the lights on. Cold air intake. For the Olds 455, 1970 was the best year. You might want to consider water/methanal injection instead of an intercooler or you can do both. See our additional drive ratio charts at the end of this section. If you are uncertain as to which cam profile best suits your needs, please contact our technical support staff at 619-661-6477. Bam, you're done. Whether you're strutting your stuff at the track, scraping knuckles in your engine bay, or just cruising with some tunes on a sunny afternoon, make sure you do it in. This Engine Provides Both The Power And The Sound That Screams "Hot Rod". The online calculator gives us 446 cfm airflow, and using the 150-cfm/100-horsepower ratio gives us 450 cfm. Manufacturers web sites provide blower specs, including maximum CFM. It is obvious that if your car is already pushing 9:1 compression, adding just 8 pounds of boost will cause some extreme effective compression ratios that will need to be addressed if the engine is to obtain any degree of reliability, not to mention the need for extreme measures to increase the fuel octane. Read this entire manual before you attempt to install your ProCharger kit. Our Customer Andrew is running our "Intake Only" with "Paired Exhaust" on his Coyote with a F1 ProCharger. A pie chart is the most often utilized chart to demonstrate frequency circulations. ProCharger Ratio = internal step-up gear ratio of the ProCharger All of these ratios are fixed except the main belt ratio. com has calculators to try. The above chart shows the effective compression ratio of your engine, which combines the static compression ratio with the amount of supercharger boost. The LSA is part of GM's 4 th-generation V8 Small Block engine family and is. Olive Branch, MS. 2L 318 CID eight cylinder engine is a V-type, lightweight, single cam, overhead valve engine with hydraulic roller tappets. The line in red is the engines airflow requirements for the engine running at the low boost level. Even with really high compression ratio (13. Sure, they built a few in '68 and '69, but they were Hurst/Olds engines and will be extremely expensive. Wallace Racing DCR calculator; Kelly DCR calculator; KB/Silvolite DCR calculator. Right now i'm going to get forged pistons 11:1 compression as one my set up so i could run with the NOS direct port but the thing i'm worried about is i might get supercharger in the future would i be able to run with this high compression and no problem at all. While the engine has never been apart and is basically stock with 9. I was told it was somewhere between 12. Barely fits with 8 rib. (ati) is recalling certain procharger superchargers, model numbers ab037a-100, ab037a-100p, and a037a-100b, sold for installation on 2012-2017 jeep grand cherokee srt8 and srt vehicles. 1:1 and that's exactly the combination we safely ran on the dyno. Both are machined on a 5-axis CNC, work well in naturally aspirated engines, and with a 75- to 150-hp shot of nitrous. Compression ratios of 10:1 and higher require lower boost levels, higher octane fuel, intercooling, or some combination of the above. 2 and your mechanical at 9. vortechsuperchargers. The compression ratio determines a lot of factors. The “Effective” compression ratio has to be calculated by first knowing the engines compression (Static), then adding the blowers boost which gives an answer called “Effective” which is what the engine is seeing as the compression ratio. High compression pressure increases the tendency towards detonation, while low compression pressure reduces performance and economy. So I was looking for a new ball and stumbled upon this chart from 2011 with different ball compressions. usually at 1 atm, is the compression ratio, and is the specific heat ratio for the working fluid, which is about 1. It doesn’t matter what your friend tells you, or what advice you were given by the speed shop counter dude or on the internet, you should use a converter that is suited for your needs. 0:1 and that just doesnt sound right to me could anyone help me understand this. EXAMPLE: Our tank contains a 55% nitromethane mix and we wish to reduce it to 20% by the addition of straight methanol. If you are seriously looking for an engine, you'll relate to it. Spark retard can help A spark retard system designed for a. Below are several variations of our 383 Stroker Engines. 0:1, which could run safely on the high-octane leaded gasoline then available. It’s based on a combination I’ve built many times, intended for use with a centrifugal blower such as a Vortech S-trim or T-trim, or a Procharger P-600 or D-1. It is not affiliated with Jeep, nor is it the official site of the Jeep Wrangler. Your camshaft specifications call for an inlet valve closing of 47 degrees ABDC (after bottom dead center). You ask too many questions. I wonder if the calculator is wrong. 043-inch plain cast-iron tapered second ring. All kinds of problems plague this old oil burner, including faulty head bolts.