effective compression ratio calculator site...
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iTrader: (20)
Joined: Aug 2007
Posts: 1,111
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From: chicago
Car: 87 GTA
Engine: 385 sbc
Transmission: 700r4
Axle/Gears: 2.73 posi
effective compression ratio calculator site...
I was trying to find max CR I can run with my setup and found this website and it gave me the effective compression ratio. Powerdyne says 12.5-13.10 is good for a centrifugal supercharger. Hope this site helps someone
http://www.rbracing-rsr.com/compression.htm
http://www.rbracing-rsr.com/compression.htm
Re: effective compression ratio calculator site...
I was trying to find max CR I can run with my setup and found this website and it gave me the effective compression ratio. Powerdyne says 12.5-13.10 is good for a centrifugal supercharger. Hope this site helps someone
http://www.rbracing-rsr.com/compression.htm
http://www.rbracing-rsr.com/compression.htm
it is a bit misleading.... My car i could run 16 psi of boost on pump gas. According to the calculator my effective compression is north of 16:1 compression. If it was really 16:1 compression there is no way i could run pump gas.those effective calculations are worthless imo.
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From: garage
Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
Re: effective compression ratio calculator site...
I agree that it is misleading. Mine comes in at 15.4:1 with the calculator. I run 87 octane sometimes with water/alky spray during boost.
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Damon
Tech / General Engine
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Sep 26, 2015 04:29 PM
axle, boost, calculator, compression, effective, find, finding, gas, generationorg, img, ls1, psi, pump, ratio, supercharger
