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TQ converter and gear effect

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Old Sep 20, 2005 | 02:41 AM
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Honda Hunter's Avatar
Honda Hunter
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TQ converter and gear effect
What effect does high stall TQ converters (3500+stall) and gears (3.73+) have on your dyno numbers? Also how much horsepower is lost with a slipping tranny?
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Old Sep 20, 2005 | 05:06 AM
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Re: TQ converter and gear effect
Gear ratio - essentially no effect
Loose converter - huge effect, 10-15% difference compared to a manny tranny
Slipping tranny - impossible to quantify, dpends how bad it's slipping

Rich
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Old Sep 20, 2005 | 06:35 AM
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Re: TQ converter and gear effect
Originally Posted by rskrause
Gear ratio - essentially no effect
Loose converter - huge effect, 10-15% difference compared to a manny tranny
Slipping tranny - impossible to quantify, dpends how bad it's slipping

Rich
So if a manual car is making 300rwhp on the dyno, it would make 10-15% less rwhp if you swapped a A4 with a 3500 stall into it?
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Old Sep 20, 2005 | 09:26 AM
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Re: TQ converter and gear effect
Somewhere in that range is what I have seen. A 3,500 would more likely be towards the lower (10%) end of the range.

Rich
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