CLASS RACER FORUM - View Single Post - H-I-J '76 Nova re-fit.

Rich Biebel · 09-30-2019, 03:12 PM

Just going off the online Wallace calculators.

Your ET / MPH computed from your vehicle weight of 3400 pounds and HP of 390 is 11.99 seconds and MPH of 112.73 MPH. That's optimistic IMHO....The car did go 12.0 something so its not far off.....Don't know the MPH on that 12.0 run......MPH indicates HP better than ET....

11.99 x 112.73 =1351 and that is very high of a factor number for a limited cyl head type stocker...…..They are usually weak on MPH with fast ET's due to gearing. Your biggest ET gain is in the first part of the run with a Stocker...

Just yesterday at Maple Grove some H/SA cars were running 11.0's......at about 116 we'll say......11.09 x 116.7 I think I saw....do the math...thats1294...…..Very fast ET......not a lot of MPH....not sure if that was flat down on it......maybe off one or two MPH's at most...…. A Low compression 350...

I did not think the run sounded like the clutch was slipping badly at all....
RPM did not flair.....engine was weak and rpm did not climb....

Its been way to many years since I had a stick shift car. We had no rev limiters, just picked an RPM and held it there......

Most stick racers I watch put it to the mat on the first or second amber and on a chip...…

She's doing a pretty good job and just needs more laps......and some tuning to get the most out of what's there....It's Way harder than driving an automatic.....

09-30-2019, 03:12 PM	#2
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,314 Likes: 25 Liked 544 Times in 213 Posts	Re: H-I-J '76 Nova re-fit. Just going off the online Wallace calculators. Your ET / MPH computed from your vehicle weight of 3400 pounds and HP of 390 is 11.99 seconds and MPH of 112.73 MPH. That's optimistic IMHO....The car did go 12.0 something so its not far off.....Don't know the MPH on that 12.0 run......MPH indicates HP better than ET.... 11.99 x 112.73 =1351 and that is very high of a factor number for a limited cyl head type stocker...…..They are usually weak on MPH with fast ET's due to gearing. Your biggest ET gain is in the first part of the run with a Stocker... Just yesterday at Maple Grove some H/SA cars were running 11.0's......at about 116 we'll say......11.09 x 116.7 I think I saw....do the math...thats1294...…..Very fast ET......not a lot of MPH....not sure if that was flat down on it......maybe off one or two MPH's at most...…. A Low compression 350... I did not think the run sounded like the clutch was slipping badly at all.... RPM did not flair.....engine was weak and rpm did not climb.... Its been way to many years since I had a stick shift car. We had no rev limiters, just picked an RPM and held it there...... Most stick racers I watch put it to the mat on the first or second amber and on a chip...… She's doing a pretty good job and just needs more laps......and some tuning to get the most out of what's there....It's Way harder than driving an automatic..... __________________ Rich Biebel S/C 1479 Stock 147R Last edited by Rich Biebel; 09-30-2019 at 03:32 PM.