For all you TC gurus out there....Is 3000 too high a stall speed for a GS400? I know most of you are using 2800 stalls. Would using a higher stall speed adversely affect the way the car runs or is the higher stall speed negligible? Engine is stock. Any help would be appreciated. Thanks.

 

Check the Precision Industries Site. They mention that anything over 3K is not suitable for street driving.

 

Unless it's for a GS/IS300. Steve Ganz called P.I.for me a few days ago and asked what they recommended for my GS3. I was thinking 3000 stall but they said 3200 stall speed.

If I had a GS4, I would get the 2800 stall speed. It seems that people are smoking their tires with the 2800 stall speed as it is. Anything higher would probably be pointless.

 

Before I got my P.I. TC I did some research - in addition to a lot of general stall speed info available on the web via a Google search, there’s probably a couple of hundred posts about the subject available via the CL search. But I can summarize why I chose 2800 as follows:

1. Mo, the CEO at Swift Racing (SRT) said “For a 430 we recommend a 2800 stall and keep the stock 3.26 rear and replace the spider gears with the TRD clutch type LSD.” The same applies for a 400. That is apparently a pretty ideal setup, Mo oughta know.

2. I personally called Precision Industries and discussed my NA GS400 with a guy that was pretty knowledgeable and was told the 2800 was what I needed.

3. The vast majority of the members that already had TC’s on CL had 2800 with no problems. There are relatively few with a different stall speed.

So, my 2800 Dragon has been spinning my S-03’s for almost a year now with no problems. No check engine lights and excellent driveability.

My .20 cents worth.

 

Ditto. I should have mentioned I did similar research and came to the same conclusion. I also have the PI Dragon TC with a 2800 stall speed spinning S-03's for about 6 months now. Still got a grin on my face!

 

If you go higher than 2800 on the GS400/430, your tranny is going to be hunting gears more with rpms going up and down a lot on less than wide open throttle. Not that great unless you're on a track.

 

sorry for asking the dumb question, but I've been hearing about auto tranny stall speed for years, and I never quite figured out what it was, would someone be kind enough to enlighten me? From what i've figured out, raising the factory stall speed somewhat helps launches on autos.

 

http://www.converter.com/q1.htm

 

Thanks for the great info!!!