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converter stall and performance #649913 03/24/10 11:10 AM 03/24/10 11:10 AM
Joined: Jun 2005 Posts: 137 michigan C challenged448 OP member
challenged448 OP member C Joined: Jun 2005 Posts: 137 michigan	I am wondering how much of a performance gain I would get from changing my converter stall speed from 6000 present to 5200-5400.I shift at 6500 and go through the traps at 7000. The car is a 67 cuda 540 pump gas motor,727,373,28" tires,700hp. Best so far 9.88 at 135.9 with a 1.37 60', footbrake.

Re: converter stall and performance [Re: challenged448] #649914 03/24/10 11:55 AM 03/24/10 11:55 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: I am wondering how much of a performance gain I would get from changing my converter stall speed from 6000 present to 5200-5400.I shift at 6500 and go through the traps at 7000. The car is a 67 cuda 540 pump gas motor,727,373,28" tires,700hp. Best so far 9.88 at 135.9 with a 1.37 60', footbrake. You want the stall at or a little above your peak torque RPM and I have always heard it should be about 1300 to 1500 below the shift point.... right now you dont spend much time with the converter locked up so in your case I would believe it would help by lowering the stall.... BUT what is peak torque at... you might be shifting too early..... JMO

Re: converter stall and performance [Re: MR_P_BODY] #649915 03/24/10 03:52 PM 03/24/10 03:52 PM
Joined: Jan 2003 Posts: 32,394 Q Quicktree I Win
Quicktree I Win Q Joined: Jan 2003 Posts: 32,394	I myself like a loose converter. I don't think you would see any gain and may even lose a little.

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