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Old 02-10-2006, 08:19 AM
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Torque Converter/Staller

Hey Guys,
I'm trying to get a new torque converter for my car to go along with the new engine, but I'm not sure on the size or bolt pattern. I've got a new TH350, and whatever standard torque converter comes with it. I've looked through Summit at a 12" 1500-1900 RPM stall with a small bolt pattern and I wasn't sure if it would fit on mine or not. Does anyone know if this will fit and replace the one I have on now? And also, is 1500-1900 adequate rpm? A new 350 is going in the car with a pretty aggresive cam and I dont wan't it to lope out or stall at lights. Any information would be appreciated.

BTW, part number on the torque converter at summit is SUM-G2700

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Old 02-10-2006, 08:49 AM
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What are the cam specs?
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Old 02-10-2006, 09:00 AM
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Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 1,800-6,000 RPM
Intake Duration at 050 inch Lift: 230
Exhaust Duration at 050 inch Lift: 236
Duration at 050 inch Lift: 230 int./236 exh.
Advertised Intake Duration: 274
Advertised Exhaust Duration: 286
Advertised Duration: 274 int./286 exh.

http://store.summitracing.com/defaul...-246-3&FROM=MG
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Old 02-10-2006, 09:15 AM
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I would look for a convertor that starts around 1900-2000 rpm.
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Old 02-10-2006, 09:29 AM
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Ok sounds good.

I see in the specs for the 1800-2200 rpm one, it says:
Torque Converter Bolt Circle 10.750

Is this the standard size that I would most likely have on mine?
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Old 02-10-2006, 09:33 AM
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that should be the diameter of the convertor. Just make sure what ever brand of convertor you are looking to buy is listed for your type of trans!
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Old 02-10-2006, 11:08 AM
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Yeah it was listed under ones that were compatible with my tranny. Thanks guys.
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Old 02-10-2006, 11:12 AM
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I would re-think the 1800-2000 stall converter with the XE274H-10 cam, and go with at least a 2400-2600. The torque peak won't happen until 4000 rpm or so, and you need to be a little closer to it with your stall speed.
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