compression too high for a supercharger?

94' Cobra 351 · January 7th, 2007, 07:04 PM

My mustang is running at 10.5:1 compression and I was wondering if this is way too high to run a supercharger at 6lbs? i know ideal compression is around 8.5-9 but I wasn't sure how harmful it would be to the engine if i end up doing this

Justincredible · January 7th, 2007, 08:14 PM

8:1-9:1 is where you need to be with a blower engine.

1slo5.0 · January 8th, 2007, 04:16 AM

Yes it is too much. How do you know it is 10.5:1? Are the pistons dished? If so what is the volume? What is the valve relief volume? Bore and stroke? Head gasket compressed thickness?

autostang03gt · January 11th, 2007, 12:05 AM

you gotta have a super strong block and some really high octane gas to boost a high compression car

January 7th, 2007, 07:04 PM	#1
94' Cobra 351 Regular Join Date: Dec 2006 Posts: 478 iTrader: 0 reviews	compression too high for a supercharger? My mustang is running at 10.5:1 compression and I was wondering if this is way too high to run a supercharger at 6lbs? i know ideal compression is around 8.5-9 but I wasn't sure how harmful it would be to the engine if i end up doing this

January 7th, 2007, 08:14 PM	#2
Justincredible Enthusiast Join Date: Sep 2006 Location: Ky Posts: 523 iTrader: 0 reviews	8:1-9:1 is where you need to be with a blower engine. __________________ 9.91@ 134mph 1/4 - 6.17@ 109mph 1/8th - 1.33 60' - Stock ECU & Stock Suspension......and getting faster . BIVENS RACE CARS FTMFW!!!

January 8th, 2007, 04:16 AM	#3
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	Yes it is too much. How do you know it is 10.5:1? Are the pistons dished? If so what is the volume? What is the valve relief volume? Bore and stroke? Head gasket compressed thickness? __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

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January 11th, 2007, 12:05 AM	#4
autostang03gt Regular Join Date: Oct 2006 Location: Southern IL near SIU!!! Posts: 68 iTrader: 0 reviews	you gotta have a super strong block and some really high octane gas to boost a high compression car

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