Highest dynamic compression for pump gas

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Web14 de out. de 2014 · I've done a few different searches and went through a few posts (there are lots of them depending on search criteria) that discuss dynamic compression ratio … Web25 de mar. de 2015 · I ran this nearly identical setup on pump gas too, never had a problem. Water temp was always 120-130 though. Oil temp was 190-200 when running fairly hard. I wouldn't do anything over 11:1 on pump gas with aluminum heads. 10.1 with iron heads and nothing more than 36º of timing.

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Web4 de abr. de 2005 · I'm reluctant to draw a line to the limits of compression vs octane. A long time ago 6:1 was considered High Compression. I was talking the other day to Scott at King motorsports and he claims to have street Honda's running 12:1 with 93 octane. These have VTEC so the DCR is variable as well. Web1 de mar. de 2013 · jimmyray said: I am actually running the combo I posted above, with the KB 2024's, 0.039 head gaskets, and the closed chamber Edelbrock aluminum heads. … cm1410 toner

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Web12 de dez. de 2008 · Joe, it depends on your camshaft, stall speed, gears, and vehicle weight. In my particular case, although I have seen no signs of detonation on pump 93, we are probably VERY close to the edge. Using the Edelbrock heads, our 545 comes up to 11.89:1, the cam is 251/260 @ .050, the stall speed is around 3500-4000, and the gears … 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 … Web14 de mar. de 2011 · Highest compression ratio for 91 octane? Thread starter Castiel; Start date Mar 9, 2011; Toggle sidebar Toggle ... About 4 years ago I ran an iron headed 427 BBC with 10.5 to 1 on pump gas (93 octane Exxon was the only pump gas that would ... What matters is the dynamic compression, not so much the static compression … cm1415fnw toner amazon 10 pack hi yield

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Web25 de mar. de 2015 · I ran this nearly identical setup on pump gas too, never had a problem. Water temp was always 120-130 though. Oil temp was 190-200 when running … Web4 de out. de 2004 · I'm trying to choose between a 10.5 or 11 to 1 compression ratio for CALIFORNIA pump gas. ... Your chamber volume is 87.60 cc's. With this camshaft your dynamic, or effective stroke is 3.25 inches. Your dynamic compression ratio is 9.13 :1 corrected for cam timing ... I'd go with the smaller cam and the highest compression ratio. cm 154 flight statusWeb4 de nov. de 2003 · I am running a new GM 350 engine. The listed compression ratio was 8.5-1. I installed AFR 190cc aluminum heads with 68cc chambers and straight plugs. AFR said my compression would be 9.6-1. However, since the engine came with the dished pistons the compression ratio is more likely around 9.1-1. The cam I installed is Comp … cm1500 insulation machine

"Web14 de mar. de 2011 · Highest compression ratio for 91 octane? Thread starter Castiel; Start date Mar 9, 2011; Toggle sidebar Toggle ... About 4 years ago I ran an iron headed … " - Highest dynamic compression for pump gas

Highest dynamic compression for pump gas

Pump gas and high compression Modded Mustang Forums

Web14 de out. de 2014 · I've done a few different searches and went through a few posts (there are lots of them depending on search criteria) that discuss dynamic compression ratio and pump gas. Most of them seem to agree that 8.5 is the max DCR to target for regular pump gas compatibility, I think, for 93 octane, but that's generally as much info as I can find.

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Web29 de nov. de 2012 · Nov 29, 2012 #8. I've read where folks have run as much as 11.2:1 on pump gas with aluminum heads but it looks like my final compression once stroked could be 11.4, 11.5 or even 11.78 depending on which gaskets we use. My elevation is 640 feet. The cam I run is 248/248 @ .050, .645/.645 lift (288R comp solid roller). Web7 de abr. de 2010 · 338 Posts. Discussion Starter · #1 · Apr 3, 2010. alright so I'm trying to nail down my quench/compression ratio. Looks like a lot of folks are running 11.4:1 to …

Web5 de jun. de 2004 · Granny's 69. I was just wondering what compression ratio I can safely run without getting into detonation. Here's my proposed combo: - 625cfm 4bbl. carb. 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. Web29 de jun. de 2010 · user-9613590. Re: Max dynamic compression on 93 octane? by user-9613590 » Sun Jun 27, 2010 2:07 pm. Well,european 95 RON gas equals US 89 …

WebIf your thinking of running pump fuel, the simple answer.. try to keep your dynamic compression ratio at 8:1,or lower, your intake air temp as low as possible,your oil temperature below about 220f and your coolant temp below about 190f and use 92-or higher octane fuel, and use an ignition system with a knock sensor if possible. Web10 de nov. de 2024 · Combining a short duration cam with very little overlap with 10:1 static compression ratio will likely cause detonation problems depending upon the amount of initial timing and how quickly the ignition curve is tuned. You’ll will probably cause tuning problems as you try to prevent the engine from detonating on 91 octane fuel.

Web27 de set. de 2010 · Discussion Starter · #1 · Jul 16, 2010. everyone of the articles from different sources say that you can run regular unleaded with 8.82:1 compression. So I …

Web23 de mar. de 2006 · There is tons of info here on this site if you search for "Dynamic Compression Ratio" E85 racer and E85 carb builder www.horsepowerinnovations.com ... 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. cadbury fingers egghttp://www.maniacmechanic.com/calculate-required-octane-for-compression-ratio/ cm 155 flight statusWeb5 de set. de 2008 · Building an engine for more performance often means raising the static compression ratio close to. 10:1, but keeping the effective compression ratio not much over 7:1. Anything lower gives up power. Anything much higher will not run at low speed with WOT on pump gas without detonating and destroying itself. cm1415fnw toner all over paperWeb21 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 … cadbury fizzing cherryWeb9 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 … cm1410 hp tonerWebDynamic Compression Ratio (Will my engine run on pump gas?) Home Dynamic Compression Ratio (DCR) is an important concept in high performance engines. ... It … cm147 flighthttp://cochise.uia.net/pkelley2/DynamicCR.html cadbury flake 99 cones