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Old 08-12-2006, 01:58 PM   #1
Rev
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Default Re: New track times!!!

I think what's happening here is he does extremely well in 60'-330' for the power he's making due to his 3700 rpm stall convertor and the 410's. I know I couldn't live with that and a C-4 on the street. Maybe a DynoJet run would solve this mystery. Finding out how much actual horse power to the wheels might show why he does worse after the 660' compared to the great "hole shots". Also, those higher rpm stall convertors do cost some inefficiency after they are "coupled".

Don't get me wrong. I'm happy (and a little jelous) that you got down into the 12's. That's just what I'm trying to do, LOL.

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Old 08-12-2006, 02:32 PM   #2
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Default Re: New track times!!!

REV, you're right I chalk those 60' and 330' times up to my gears and converter. It's also on the ragged edge on streetability as you already suspected.
I need to find out what I need to make this "loose" converter work with what I have for now. I know the simple answer would be new heads and cam but they're not in the cards right now.
I'm hoping maybe a few jet changes and timing adjustments will get my top end power back.(I've seen it happen before)
I was thinking if I put a 2inch spacer under the carb, it would fool the engine into thinking it had a high intake manifold and help me make more top end power.
My jets now are 72/80. Maybe the primarys can go up one or two...
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'82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.
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Old 08-13-2006, 07:18 AM   #3
~The Jester~
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Default Re: New track times!!!

Congrats man! Carb spacer will help you out, like we already talked about. Just make sure you get the right one for the top end.

Does the car feel like it's nosing over, or running out of steam? Or it's still pulling hard, and the number just isn't there?
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Old 08-13-2006, 12:15 PM   #4
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Default Re: New track times!!!

It feels like it's running out of steam. We'll have to talk about that cam you have.
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Old 08-13-2006, 12:52 PM   #5
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Default Re: New track times!!!

Here is my set up and the best the I've gone is 1.65 60ft 7.97@84 1/8 12.61@105 1/4. That was good weather. In the heat 12.76-12.80. The best MPH in the 1/8 and 1/4 has been 85-106. On a 175 shot the best is 1.54 60ft 7.16@96 1/8 11.33@116 1/4. It's a 69 351W bored .030 with 69 351 heads (untouched). It has Speed Pro Flat top piston. It has 9:5:1 compression. It also has a hydraulic flat tapped Crane cams duration @050 216in 228ex. valve lift .484in .512ex, 1.6 Scorpion roller rockers, MSD distributor. Moroso spark plug wires. Edelbrock RPM air gap intake (untouched) with Holley 750 Double Pumper. I'm running a TCI 2800 stall with a C6 trans and 3.73 gears.
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Streetcar 90 Notch 69 351W .030 over. Untouched 69 351 heads Crane cams duration @050 216in 228ex. valve lift .484in .512ex. Untouched RPM air gap intake with Holley 750 DP. Hooker headers. C6 trans. 8.8 with 3.73, Strange 31spline alxes and spool

Racecar 68 Falcon 10 point Cage and FE487ci 13.6:1 compression. .740 lift 276in 284ex duration @.050 in the Works. 428CJ heads. Port O Sonic intake with 1050 Dominator. PowerGlide trans.
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