How would a t-70 work for me?
05-31-2004, 07:27 PM
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How would a t-70 work for me? I've been thinking about going the turbo route for a while here, and real tempted to with these new master power turbos being sold here. They offer a t-70 which are advertised at 840hp. My question is.. Will it support my stock cube motor to say 600rwhp......efficiently? I was playing with this calculator and according to that I'm almost getting out of the range of the turbo at say 10-11 psi... If I'm reading them right. Actually, it seems to be on the edge no matter the psi. Is that a sign it's too small? Would the power drop off pretty sudden after 6k?
05-31-2004, 07:51 PM
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if you use:
Actual CFM= CID * RPM * VE / 3464 (ve= volumetric efficiency or 79%/80% on a ls1 as far as i know)
Pressure ratio = 14.7 + boost / 14.7
Airflow rate= pressure ratio X basic engine CFM
Convert CFM to lbs/min by multiplying the corrected CFM by 0.069
This is a t-70 compressor map...
now hoping i'm not WAY off, the t-70 should be fine as far as efficiency, the t-76 compliments 346CID great so the t-70 shouldn't be far off.
it says it supports a maximum of 84lbs/min, at 10psi you shouldn't be there
Actual CFM= CID * RPM * VE / 3464 (ve= volumetric efficiency or 79%/80% on a ls1 as far as i know)
Pressure ratio = 14.7 + boost / 14.7
Airflow rate= pressure ratio X basic engine CFM
Convert CFM to lbs/min by multiplying the corrected CFM by 0.069
This is a t-70 compressor map...
now hoping i'm not WAY off, the t-70 should be fine as far as efficiency, the t-76 compliments 346CID great so the t-70 shouldn't be far off.
it says it supports a maximum of 84lbs/min, at 10psi you shouldn't be there
