Finally made it back to the track tonight after making some changes to my car. Changes include switching to 4.56 gears from 4.10's, carb reworked, tranny/converter freshened.
My best from my previous outing was 10.42@127.82
Here's the runs from tonight:
Jetting-82/90 timing-38dg 1" open spacer.
60-1.434
660-6.593@104.18
1000-8.652
1320-10.408@127.68
Next run- added another 1" spacer for total of 2"
no other changes
60-1.431
660-6.604@104.25
1000-8.658
1320-10.407@127.91
Next run-bumped jets to 84/92, increased fuel psi from 7.75 to 8.5psi.
60-1.434
660-6.579@104.61
1000-8.626
1320-10.369@128.74
Last run- bumped jets again to 86/94, all else the same.
60-1.427
660-6.535@105.09
1000-8.577
1320-10.318@128.91
I've got a few other things to try before I pull this motor out and start playing with the new sbc. I believe a 10.2x shouldn't be too hard with some more suspension tweaking and maybe crack 130mph with some more engine tuning. I've also got a vacumn pump set-up I'll be installing.
Weather tonight was identical to my last outing. Temp at 10pm on the last run was 53dg, 30.3 barometer, 41dg dew pt which works out to ~ -700DA.
Real nice track trip for a change.
My best from my previous outing was 10.42@127.82
Here's the runs from tonight:
Jetting-82/90 timing-38dg 1" open spacer.
60-1.434
660-6.593@104.18
1000-8.652
1320-10.408@127.68
Next run- added another 1" spacer for total of 2"
no other changes
60-1.431
660-6.604@104.25
1000-8.658
1320-10.407@127.91
Next run-bumped jets to 84/92, increased fuel psi from 7.75 to 8.5psi.
60-1.434
660-6.579@104.61
1000-8.626
1320-10.369@128.74
Last run- bumped jets again to 86/94, all else the same.
60-1.427
660-6.535@105.09
1000-8.577
1320-10.318@128.91
I've got a few other things to try before I pull this motor out and start playing with the new sbc. I believe a 10.2x shouldn't be too hard with some more suspension tweaking and maybe crack 130mph with some more engine tuning. I've also got a vacumn pump set-up I'll be installing.
Weather tonight was identical to my last outing. Temp at 10pm on the last run was 53dg, 30.3 barometer, 41dg dew pt which works out to ~ -700DA.
Real nice track trip for a change.
