Changing gears turns nova clone into a dog - engine change effect on converter? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 07-30-2005, 07:44 AM
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Changing gears turns nova clone into a dog - engine change effect on converter?

I had a new project which was a 74 omega (nova clone) with a worked over but pretty mild 355, stock unworked heads, edelbrock rpm cam, RPM intake, 600 cfm carb. It had a GER 3800 stall converter and 4.56 gears out back. Guy before me was using it as a 1/8 mile drag car. I wanted it as a cruiser. Setup was fun for a car without aftermarket heads (of course it had a top speed of like 80mph) from stop light to stop light. I put on a Dr. Gas x-pipe setup which I was pleased with and gave it the aggressive but different sound I wanted.

I just had the 4.56 pumpkin changed for another that he gave me with the car. Gear looks like it was more of a 3.30 than a 3.55 like he said it was based on 3000 rpms at 70mph on the highway. The torque difference is just day and night in a bad way. I can now drive easily on the highway but it runs like a dog. No pep at all.

The flash stall is down to like 2800-3000. Brake torqueing won't even spin the radial TAs anymore which amazes me.

Anyway, I'm going to be switching out the mild 355 with a pretty built 383 with afr 190 heads and a 525/525 lift solid cam. I just want to know what to expect as far as the stall going back up due to the extra torque. I'm hoping it will have at least the kick of 4.56 gears/3800 stall and the mild engine but with the ability to drive over 50 on the highway without going deaf AFR heads are supposed to be all about torque which is about exactly the opposite of the edelbrock rpm cam and stock heads!

Obviously I'm a novice still trying to learn and I'm still on my first few setups so I don't really know what to expect.

Any ideas for what to expect? I wish I knew the STR, etc but I don't.

Thanks in advance,

Erik
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