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11-27-2019, 07:05 AM | #1 |
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TH 400 1st gear?
Been "advised" much concerning correct 1st gear needs for my 3500 lb car with 5.14 gears and 30" tire, behind a decent BB chev Stocker and TH 400 trans. Any "rule of thumb" I should be using?
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11-27-2019, 01:42 PM | #2 |
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Re: TH 400 1st gear?
You didn't say if it's a Stocker, S/S or bracket car but the stock 2.48 is a good starting point. Keep in mind that we're racing at least 1/8 or 1/4 mile and not just to the 60'. A close ratio trans may result in a slower 60' time but due to less RPM drop on gear changes, could result in a quicker E.T. On the other hand a trans with a wide ratio, say a 2.75 for example may provide a quicker 60' but may fall down too much on the gear change. Converter stall also comes into this discussion as well.
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11-28-2019, 08:24 AM | #3 | |
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Re: TH 400 1st gear?
Quote:
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11-28-2019, 12:38 PM | #4 | |
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Re: TH 400 1st gear?
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11-28-2019, 12:44 PM | #5 |
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Re: TH 400 1st gear?
What class and combo BBC?
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11-28-2019, 12:51 PM | #6 |
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Re: TH 400 1st gear?
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11-28-2019, 02:41 PM | #7 |
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Re: TH 400 1st gear?
Turbo 200 with 2.75 low, swap converter for one for a 200. Put the 400 in a pick up truck where it belongs. The fast big blocks are successfully run in 200s.
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11-28-2019, 04:57 PM | #8 |
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Re: TH 400 1st gear?
..Or 33.5' Class A 454 motor home, like the last one I built for anything ;-)
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11-28-2019, 05:35 PM | #9 |
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Re: TH 400 1st gear?
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11-29-2019, 01:37 PM | #10 |
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Re: TH 400 1st gear?
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