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16 mph increase E/T

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Old 04-02-2008, 02:06 AM
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16 mph increase E/T

I meant increase in mph in the 1/4(title is wrong)


full weight...mods in sig....picked up 16 mph on the spray. Approx. how much extra RWHP do you think is being provided fromt he nitrous? I'm in Iraq, bench racing in my mind....NO DYNO.....just fiddling some ideas around.

went from 105mph (motor) to 121 mph (spray)....spinning quite a bit, backed out a tad in 1st.

Also, for a full weight ride....121 mph= ?? RWHP (approx)
Old 04-02-2008, 07:40 AM
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Car: 1987 Firebird
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Re: 16 mph increase E/T

Would help to know the 60ft time and ET as well if u remember.

Also, i judged 3500lb car + 200lb driver? Seem about right?

A calculator suggests, 511hp at 121 mph.
and 335hp at 105 mph.
Old 04-02-2008, 09:27 AM
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Re: 16 mph increase E/T

I left the 60' and E/T out on purpose

The trans was slipping or i have a real bad gear combo...the shift light was on from 2-3 shift all the way through the traps....never went off she was screaming! This happened every nitrous pass that night

this pass was an 11.53 if I recall. Traction sucked, the track always sucks....either 1.8's or 1.9's (spray) that night...everywhere else I get high 1.5's to low 1.6's (spray)..

went 12.60 once and a few 12.80's that night on motor...the 3.23's are the wrong combo for my set-up. I dont know what to do about that. Going to 3.73's will make me have to go to friggin O.D. on spray! I might have to numerically lower my gear ratio...maybe 3.08's???
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