I have a regular cab short bed truck, 4x4 weighing in at just over 5000 lbs. Right now I have a 2600 stall converter that is not locking up, I keep getting the p0894 code..."Transmission comp slipping" So I need a new converter, right now I am get low 1.7 60' times and don't want to hurt that. A couple people told me that I could get away with the stock converter since I was supercharged and am making more torque down low. So not to waste the money on another stall converter.
So my question is would this be the right way to go, or what size stall would be?
Thanks for any help as I want to change this out ASAP..

Bill

 

I'm running a Yank SC2800 and I love it. A SC3000 would have been fine too!
If you want, I have my stock converter with less than 5000 miles...PM me if interested.

 

What sorta 60' time are you seeing trever? I'm guessing low-mid 1.7's?

 

I'm working on it!
My best 60' so far has been a 1.86, last trip out I was cutting consistant 1.88's. This with the 3.73 gearing. The 3000 rpm stall might have helped a little but i like the 2800 a lot on the street.

 

Oh yeah, I remember you saying that now.

What sorta weather was that in? My times are in say 55 degree weather at basically sea level so I imagine in the summer they won't be so good.

Also, to keep somewhat on the original topic I have a PI 2600 converter I'm going to put in my truck. From what I've seen anywhere from 2600-3000 is a decent converter for the radix.

 

Right, those were in 88*-77* with 40% humidity at sea level, hence the meth going in today
I can feel a major SOTP difference when it's under 70* like in the morning. I'm hoping that on the 25th we get a clear cool afternoon. A 1.7 would make me happy

 

Which brand stall?
I was told by Vince at FLT that a 2400-2800 stall will be best for the Radix S/C. He explained it likes a tight converter basically. It nets you better everyday driving results as well.
I was also told you can also use a stock stall converter with no issues as well. The Radix gives plenty of low end ***** to get away with it.
If your going to do a stall, go with a 3-disc 10.5" PI Vigilante 2400 stall. At least that's what Vince recommended for me.
Good luck on the decision!

Jim

 

HDMLNIUM

What are you getting for wot psi and afr's with that setup.
That must be a mail-order tune?
I've got 8 psi with with 3.4 pulley which I thought was good with headers and exhaust.

 

I'd say 2600-3000 RPM at the most....any more than that, and you're wasting one of biggest benefits of the Radix - its low end. I had the stock converter on my Radixed Avalanche and that was fine with me.

 

Sounds like great advice.

FWIW, I just lost a Yank TT2600 after 2200 miles (Vince saw first hand the crap it caused). Before that I had a Yank 3000TT which was way too loose but held up well. I got the same 60ft times with either converter (mid to high 1.6's) so I would strongly suggest no more than 3000. I am going with a PI Vigilante 2800 3-disk 10.5"

I had a hell of a time chasing down KR at the lock-up point of the 2600TT and now I am convinced it was something with that particular converter after it died. I never had that issue before.