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Discussion Starter · #1 ·
I made my second trip to the track since building the motor. Air was really nice for my area today, We saw negative DA which almost never happens during the racing season. I got 6 runs in today, and despite the awesome air I did not hit my 10.9 ET goal. I was very close though..

Here is the build in short

11.85:1 383 pump gas
LE 215cc Trickflow heads
Jones Racing cams solid roller ..
259 - 260 .68x/.67x lift on a 110

The drivetrain is in my signature.
Rear suspension is all tubular, adjustable torque arm, MWC anti roll bar and weld in subframe connectors.

6 passes total today, making small changes to AF and spark advance. Last two passes I bumped timing 1 degree on each pass - picking up MPH on each.

DA -200 ft, 2nd pass
34* advance 12.5:1 AFR
1,55 60 ft
7.05 @ 98.71
11.06 @ 122.88

DA +400 ft last pass
36* advance 12.5:1 AFR
1.56 60 ft
7.06 @ 98.75
11.07 @ 123.05

Other times were 11.08, 11.08, 11.12, and 11.27. Pretty consistent.. The 60 ft stayed at 1.55 consistently, with some variation due to wheel spin.

The stock shocks and springs have to go.. A restall on the converter after a dyno tune, and maybe I can get some high 10 second passes.. :cool:
 

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Discussion Starter · #4 ·
Thanks! 7000 RPM shifts and around 6700 through the lights. ACDelco Opti seems to be taking it *knock on wood*.. Stock PCM. Will eventually be moving on to a FAST or 24x setup and single plane intake. Not this year though..
 

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I made my second trip to the track since building the motor. Air was really nice for my area today, We saw negative DA which almost never happens during the racing season. I got 6 runs in today, and despite the awesome air I did not hit my 10.9 ET goal. I was very close though..

Here is the build in short

11.85:1 383 pump gas
LE 215cc Trickflow heads
Jones Racing cams solid roller ..
259 - 260 .68x/.67x lift on a 110

The drivetrain is in my signature.
Rear suspension is all tubular, adjustable torque arm, MWC anti roll bar and weld in subframe connectors.

6 passes total today, making small changes to AF and spark advance. Last two passes I bumped timing 1 degree on each pass - picking up MPH on each.

DA -200 ft, 2nd pass
34* advance 12.5:1 AFR
1,55 60 ft
7.05 @ 98.71
11.06 @ 122.88

DA +400 ft last pass
36* advance 12.5:1 AFR
1.56 60 ft
7.06 @ 98.75
11.07 @ 123.05

Other times were 11.08, 11.08, 11.12, and 11.27. Pretty consistent.. The 60 ft stayed at 1.55 consistently, with some variation due to wheel spin.

The stock shocks and springs have to go.. A restall on the converter after a dyno tune, and maybe I can get some high 10 second passes.. :cool:
What pistons/rod/crank combo are you using to get that CR?
 

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Discussion Starter · #8 ·
Mystery - thanks! I don't know if I am spinning, I don't hear or feel it in the car. The converter is on the tight side, and I doubt flashing where it should.

Terminal - The setup is 3.75 stroke, 6" rod, -5cc flat top, .039 head gasket, zero deck, 59cc combustion chamber.
 
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