spool rpm differences between 8.5 CR and 10.0 CR
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spool rpm differences between 8.5 CR and 10.0 CR
Has anybody had experience with how much of a difference compression ratio makes on spool time. For example 2.0 LS VTEC with a T4/67 with 8.5 compared to same setup with 10.0 compression ratio. The car is a drag only car with air/water intercooler and will be running on 116 race gas.
#4
Re: (advert)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by advert »</TD></TR><TR><TD CLASS="quote">i dont think your going to have any diff in spool time. your displacment is still the same.
i think the diff is going to be throttle response. </TD></TR></TABLE>
True, but even the effect on throttle response is negligible. I am running 9:1 compression and the difference between 9:1 and 10:1 is basically unnoticeable on the street.
Since this is a race car running a T3/T67 and always race gas, I would run a flat top piston and whatever compression ratio that nets. An 84mm LS/VTEC with a B16 head and a flat top at zero deck will be anywhere from about 10.7:1 to 11.1:1, which is fine with race gas all the time, and might lead to a few more top end horsepower for a race car.
i think the diff is going to be throttle response. </TD></TR></TABLE>
True, but even the effect on throttle response is negligible. I am running 9:1 compression and the difference between 9:1 and 10:1 is basically unnoticeable on the street.
Since this is a race car running a T3/T67 and always race gas, I would run a flat top piston and whatever compression ratio that nets. An 84mm LS/VTEC with a B16 head and a flat top at zero deck will be anywhere from about 10.7:1 to 11.1:1, which is fine with race gas all the time, and might lead to a few more top end horsepower for a race car.
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