2024 Highest compression on 91 pump gas

Highest compression on 91 pump gas

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Web9 de jul. de 2001 · 10,475 Posts. #3 · Jul 5, 2001. I don't think it is possible to say a certain compression ratio is the absolute limit for an iron headed SBC. 9.5 to 1 is the rule of thumb. Sure you can get away with higher but then you have to be careful with quench, cam, piston type and things like that if you want to stay away from detonation. Web1 de nov. de 2011 · What is the highest amount of boost that I can (safely; conservative numbers) run (from a turbocharger) on 9:1 ... that I can run on a the engine with 9:1 compression AND 91 OCTANE PUMP GAS! Thank you for letting me know I skipped that. SLEEPER Pro Tuner. Points 592. 31 October 2011 #5 91 octane is going to seriously …

high compression vs. pump gas. Honda / Acura K20a K24a …

Web19 de mar. de 2024 · Where it was once taboo to run 11:1 or even 10:1 on the street with pump gas, we're finding that a well-chosen combo (heads, cam, intake, etc.) can push the boundaries of acceptable compression ... Web21 de mai. de 2003 · Joined Jan 13, 2002. 5,094 Posts. #6 · May 20, 2003. yeah you would have to be alot smarter than me to make your car run any higher compression. the guys in the phr engine masters challange had alot of engines with 13:1 and higher that all ran on pump gas. you're on the right track thinking about static and dynamic compression tho … long thin room ideas

Safe compression ratio/aluminum heads? Team Camaro Tech

Web1 de set. de 2002 · The key here is to give you one more tuning device you can use to dial in your engine to perform better. If your engine checks out with around 170 to 185 psi of cranking pressure, then you're ... Web9 de jul. de 2001 · I don't think it is possible to say a certain compression ratio is the absolute limit for an iron headed SBC. 9.5 to 1 is the rule of thumb. Sure you can get … Web24 de jun. de 2011 · 17 Posts. Discussion Starter · #6 · Apr 15, 2011. I'm talking about a completely stock SCJ 429 in a torino with an 11.3-1 compression ratio running on 91 … hopkins 7 pin trailer connector

Pump gas and high compression Modded Mustang Forums

max compression ratio for aluminum heads on pump gas????

Web5 de abr. de 2010 · Discussion Starter · #1 · Apr 5, 2010. I am going to redo the engine. and wanted to up the piston Compression but still run Pump gas. At my level I do not see … Web16 de abr. de 2011 · What's the highest compression ratio you can run on pump gas (i.e. 93 octane)? With the pistons I have on my 347 I can get 10.9:1 with a 58cc combustion … hopkins 7 round to 4 flatWeb21 de dez. de 2011 · Static compression ratio of 11:8:1. Effective stroke is 2.75 inches. Your dynamic compression ratio is 8.31:1 . Your dynamic cranking pressure is 167.00 PSI. Your dynamic boost compression ratio, reflecting static c.r., cam timing, altitude, and boost of PSI is 8.31 :1. V/P (Volume to Pressure Index) is 141. hopkins academy baseball

"Web10 de abr. de 2024 · This is not a bad compression ratio for pump gas. Let’s say that you’d like to push that closer to 10:1. Our piston is pretty close to the deck at 0.005 inch so we can’t really put a steel shim head gasket on this engine because this will put our piston-to-head clearance too tight at around 0.020 inch. " - Highest compression on 91 pump gas

Highest compression on 91 pump gas

Too High Compression for 91 octane pump gas????

Web9 de mar. de 2007 · I've seen pump gas 10.5:1 with vortecs. 10.8 is asking a lot, but you have the advantage of the fast burning heads and you only need about 30* total … Web3 de jun. de 2006 · Fresno , Ca. I just got my 468 running. The compression is about 10.5 to 1. The cam is 231 239 550 575. Trans is a TH400 with an ATI converter 2,500-3,500 flash. My cranking compression is 175 pounds on the third stroke. I'm currently running 91 octane with 36 degrees of total timing. The car shuts down fine but it is a pile of crap to …

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Web26 de set. de 2011 · Keep the dynamic compression ratio under 9.5 and it will run on pump gas. Run a dynamic compression calculator. You will need the valve timing events and motor specs. That will dictate what works or not. 1999 GT 630rwhp on pump, TFS Heads, MMR 4.75L, Highly Modified Kenne Bell 2.1 @ 20lbs, Custom Intercooler, JLT High … Web7 de abr. de 2010 · What would yall say a max "safe" compression ratio is for this combo at sea level with 91 octane? Reference info LS3 aluminum block (4.070" bore), 3.622" …

Web29 de dez. de 2010 · I'm lookin' at getting a 383 stroker for my pickup. What is the max compression ratio to still be able to run on 91 octane pump gas? What would the best cam be for low-end torque? Should I use vortec heads? P.S. What type of fuel economy would I get with overdrive? Web5 de abr. de 2010 · Highest Compression piston on pump gas (91) Jump to Latest Follow 1 - 4 of 4 Posts. B. brent701 · Registered. Joined Feb ... Discussion Starter · #1 · Apr 5, 2010. Only show this user. I am going to redo the engine. and wanted to up the piston Compression but still run Pump gas.

Web9 de dez. de 2011 · 7,310 Posts. #14 · Dec 8, 2011. JeffMcKC said: Its will depend on how the camber is set up, timing curve, and cam shaft, and which pump you get your 93 octain out of each staion will have a different blend. There is no set CR you can use, a 9to1 stock car motor can have 275 lbs of comp because of the camshaft and you cant run 93 in it. Web23 de mar. de 2006 · And if it makes Mike jmp1177 feel any better I too am running Edelbrock aluminum heads to get that break on pump gas with higher compression. I …

WebThis is a discussion on High Compression within the Internal ... These engines are fairly easy to run on pump gas with 38 degrees of ignition lead if you have the fueling right. I built a vintage 427 L88 with ... 10.2:1 compression with a muther thumper camshaft and it runs effortlessly on 91 octane without a hint of complaining and 36 ...

Web23 de dez. de 2007 · I'm assuming you mean (regular) unleaded. That being the case I would say about 8.5:1 depending on timing. I did a bunch of research a few years back and the conclusion was that a good ballpark is to take the octane rating and directly correlate it to compression ratio. Example. 87 octane = 8.7:1, 89 octane = 8.9.1, 92 octane = 9.2:1, etc. hopkins academy hadleyWeb22 de abr. de 2024 · The generally accepted conservative estimate is 8.0 to perhaps 8.5:1 dynamic compression ratio for 91 octane pump gas. This tends to be true for older, traditional engines with less effective combustion chambers. But for later model engines … long thin rubber spatulaWeb5 de jun. de 2004 · All of my DD2k testing so far has been based on a 9.5:1 compression ratio. 9.5:1 compression is probably safe for 91 octane gas. But could I go up to 10:1 … long thin shadow box hobby lobbyWeb16 de mai. de 2006 · As you can see this increase in compression recouped almost all the low-speed torque that was lost. On top of this the big cam/high compression combo … hopkins 90192 2x4basics shed kitWeb6 de abr. de 2013 · I agree that 200-215 psi cranking compression is too high for California's 91 octane pump gas. And that is obviously confirmed by what you are experiencing. … long thin seed pods treeWeb12 de dez. de 2008 · 1,232 Posts. #8 · Dec 8, 2008. A tight quench will also keep things happy with higher compression and pump 91-93. Can actually run higher compression with proper quench than you can with it out in left … long thin sewing needleWeb29 de dez. de 2011 · Most gas stations offer three grades of octane, with regular rated typically at 87, mid-grade at 89 and premium at 92 or 93 [source: Federal Trade Commission ]. It's easy to find what octane rating … long thin scarf crossword clue