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Old 08-13-2023, 02:49 PM
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scott70 scott70 is offline
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92.5 mph should be about a 7.4 with good traction and about a mid 1.6 60ft in a heavyish street car.

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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007
(cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD
1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.45 @ 88.1 mph on slippery street tires.Bad 2.19 60ft.Owned since 86'
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Old 08-13-2023, 08:49 PM
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RocktimusPryme RocktimusPryme is offline
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Quote:
Originally Posted by scott70 View Post
92.5 mph should be about a 7.4 with good traction and about a mid 1.6 60ft in a heavyish street car.
It’s probably 3300 at a guess.

The track is Speeds New Hope. Fun little independent track about 30 miles from me.

I gotta dig up my old best at Indy which was a 12.2 with I think 7.80. Great weather. Cool engine. One of the best tracks in the world.

This was definitely an improvement on that considering conditions and location. I was really happy.

The weak link in the setup is the 1310 rear u joint. It makes me afraid to really let it go since I drive my car to the track. I don’t have a trailer.

I also think I might have had too much air in the drag radials. I had them at like 17psi. I feel like I’ve had lower 60’ times with more like 15psi.

I REALLY want to be able to say I have an 11 second car. I thought I was going to need to change to more gear than the 3.08s or go with a bigger cam to get there. But now I feel like I might be able to get there easily with what I have.

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