I would also like to know more about the performance Auto aspect. When do you have to upgrade the tranny? I've heard 500rwhp?
Tanks,
Casey
Tanks,
Casey
You would lock it up in the middle/end of 2nd gear if your converter/tranny can handle it, you can also lock it up in the middle of 3rd. I never have to lock up when I'm cruising, the factory computer handles that. Under normal driving it locks up into overdrive like a factory unmodified Supra. My best times drag racing have come WITHOUT locking up the converter, but that is because I was not able to run past 24psi without EGT issues, so the couple of times I did try it and hit 28psi I let off the gas and coasted the rest of the way. I just redid my fuel system (I found some issue's with the way a shop installed it, design, high psi leaks and such) a couple weeks ago, and I plan on dynoing this weekend, so once I'm comfortable, I will use it at the track on a high boost run. I've seen it in action on Mark C's car at BPU and APU, and it made a big difference, esp at BPU. His best prior to the lockup switch was 11.73 @ 114, and after the lockup switch he went 11.53 @ 119mph on DR's. At APU he ran 10.20 @ 133mph, so it def works. It's something we stole from our Buick turbo cousinsturbowash said:So, lets say, after I launched at the track. It shifts into 2nd, I lock up the converter?
Then when I stop, I unlock the TC? And then lock it up again when im crusing in a higher gear?
So basically when racing, lock it up in 2nd or 3rd?
What if from a roll? lock it up in 3rd?
Casey
Stage7 said:
You would lock it up in the middle/end of 2nd gear if your converter/tranny can handle it, you can also lock it up in the middle of 3rd. I never have to lock up when I'm cruising, the factory computer handles that. Under normal driving it locks up into overdrive like a factory unmodified Supra. My best times drag racing have come WITHOUT locking up the converter, but that is because I was not able to run past 24psi without EGT issues, so the couple of times I did try it and hit 28psi I let off the gas and coasted the rest of the way. I just redid my fuel system (I found some issue's with the way a shop installed it, design, high psi leaks and such) a couple weeks ago, and I plan on dynoing this weekend, so once I'm comfortable, I will use it at the track on a high boost run. I've seen it in action on Mark C's car at BPU and APU, and it made a big difference, esp at BPU. His best prior to the lockup switch was 11.73 @ 114, and after the lockup switch he went 11.53 @ 119mph on DR's. At APU he ran 10.20 @ 133mph, so it def works. It's something we stole from our Buick turbo cousins. After all they've been with the turbo/automatic thing much longer than us!
Spool said:What stall was Mark C. running when he went 11.53 at BPU?
I'm considering a 3800 - 4000 converter, but I also like to race around the street a bit/cornering. How is a high stall converter at low RPMs during cornering?
If you lock it up does it downshift easily?
I think I may even want to go a bit lower...say 3200, but I'd like to get opinions of those in the know!
I appreciate the feedback!
Stage7 said:3800rpm stall. If you go single, I doubt you will be happy w/3200, unless you go w/SP57 or something smallish like that w/small housing. My stall is 4k.
The car is great around the corners (it's like fanning the clutch to build rpm's w/o downshifting), although I do not road race. If I wanted to road race I would have bought a 6spd.
Stage7 said:3800rpm stall. If you go single, I doubt you will be happy w/3200, unless you go w/SP57 or something smallish like that w/small housing. My stall is 4k.
The car is great around the corners (it's like fanning the clutch to build rpm's w/o downshifting), although I do not road race. If I wanted to road race I would have bought a 6spd.
Yes I did. My tranny feels great and has survived dozen's of 10 sec passes. It still feels tight and solid. Their customer service was excellent as well. I highly recommend them.KJSUPRA said:Hey Stage 7. Didnt you have your tranny done by Pro-Tech transmissions in Harriman,NY?? If so, how would you rate the work they did and what kind of customer service they have? I have heard quite a few good things about them.