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Automatic Transmission - 2 Speed

1st Gear: 1.76/1.82
2nd Gear: 1.00

- Used in production GM models from 1962 thru 1972.
- 14 Bolt Pan.
- Vac...
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Re: Transmission question

Subject: Re: Transmission question
by dan0617 on 2008/12/31 18:32:01

Quote:

BeachBum wrote:

With your set-up, I think your converter is too tight for the HSR..... I think 2800 is too tight for a superram, let alone an HSR. With your new stroker motor as per your signature, and a 3400 rpm converter, I'm betting you could run low 1.5's on the motor..... add the nitrous and you're well into the 1.4's...... but just guessing.


My 2800 stall is a loose 2800. When I stand it up on the brakes the car does start pushing ahead at about 2600 rpms. But, when I was spraying with the old combo (CC503 cam, reworked 113's, HSR intake, 175 shot), it would shift at 6200, then only drop to 5100 rpms. The entire pass it was between 5100 and 6200 rpms. When I didn't spray the rpms would drop to about 4400 after the shifts. Must be the more power put to it, the higher it stalls. I'm thinking with the new combo I'll run it to about 6300 rpms and I'll bet it only drops to about 5300 after the shifts. My peak hp should be at about 5800. With my converter never letting the rpms drop below about 5300, do you really think a higher stall would help my times? I was thinking since it is such a loose 2800 stall it wasn't hurting much, and any more of a punch on the launch might toast the D36 instantly. What do you think of it all? Do you still think I should be considering a converter swap now? If so maybe I'll start looking into it.
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