Pi Torque Converter Problems
#1
Pole Position
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how can i tell if there is something wrong with my pi torque converter or that it wasn't installed correctly? i don't really feel any off the line performance and the little more power that i do feel thru out the powerband i would credit it to my tune up. yes i have searched and the only thing that i really found was to powerbrake and the rpms should go up to the set stall speed but when i do that it only goes to about 2k and my stall speed is 2800. i have also reset my ecu and for a little while that seemed to help but about and hour after drivin with my ecu reset and drivin the car aggressivley my trac off and check engine light came on. i read that when the trac light and check engine light come on its your o2 sensor but they never said anything the trac off and check engine light. any help would be appreciated. thanks
#3
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Not trying to add fuel to the fire, But....
I have been reading some questionable things about PI in the past few months over on Supra forums.
Last week I went ahead and tried to order one from SoundPerformance and the word was that they didnt deal with PI anymore
. I didnt get anymore information than that. I ended up with there stage 2 converter.
It does sound like they got it wrong. Sounds like it would be a pain to find out. Good luck.
gadgetSC-t
I have been reading some questionable things about PI in the past few months over on Supra forums.
Last week I went ahead and tried to order one from SoundPerformance and the word was that they didnt deal with PI anymore
![Frown](https://www.clublexus.com/forums/images/smilies/frown.gif)
It does sound like they got it wrong. Sounds like it would be a pain to find out. Good luck.
gadgetSC-t
#5
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Originally posted by TurboB6
I had a trans. failure after installing my PI converter 2 months ago I believe it was.
I had a trans. failure after installing my PI converter 2 months ago I believe it was.
What tranny cooler did you use? Did you bypass the stock one as well?
#6
EV ftw!!!
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Originally posted by TurboB6
I had a trans. failure after installing my PI converter 2 months ago I believe it was.
I had a trans. failure after installing my PI converter 2 months ago I believe it was.
#7
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Originally posted by Hermosa
Hi,
What tranny cooler did you use? Did you bypass the stock one as well?
Hi,
What tranny cooler did you use? Did you bypass the stock one as well?
Hameed: Having a converter helped big time on the street/track imo. Just I haven't had much luck. I was about to try different converter company but I've changed transmission setups all together.
Last edited by TurboB6; 03-01-04 at 07:56 AM.
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#8
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Originally posted by Hameed
Reading this type of feedback is what makes me hesitate to do this mod on my GS400........
Reading this type of feedback is what makes me hesitate to do this mod on my GS400........
#9
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I have had my old PI 3800 converter fail as well, although this was at 500whp+ power levels. My new PI 4000 is holding up well so far. Stock cooler + B&M race unit. Soon to add another cooler w/ fan and temp gauge to keep an eye on things. I think heat killed the old converter and trans.
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#10
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I've had two 4K stall ones so far. First one failed to heat, the unit actually froze to the pump bushing. Second one caused a transmission failure. Apparently, Marko's built autos don't like the PI converters.
#11
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Originally posted by TurboB6
I've had two 4K stall ones so far. First one failed to heat, the unit actually froze to the pump bushing. Second one caused a transmission failure. Apparently, Marko's built autos don't like the PI converters.
I've had two 4K stall ones so far. First one failed to heat, the unit actually froze to the pump bushing. Second one caused a transmission failure. Apparently, Marko's built autos don't like the PI converters.
#12
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i wish i heard about all these issues before i bought it . the weird thing about my trac off light and check engine light coming on is that they only come on when i come to a complete stop .
#13
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You can't really blame the PI torque converter for the tranny failures. It could be that the tranny couldn't take the extra stress or was already in the process of failing. The torque converter just expedited the failure. I also don't think TurboB6 and Boost are making stock power either.
I have had my PI torque converter installed going on 2 years now and I haven't had a problem with my transmission. Only problem I've had is smoking my tires a little too often![Wink](https://www.clublexus.com/forums/images/smilies/wink.gif)
Anytime you do a performance mod, you are adding extra stress to the system. Sometimes it works. Sometimes it doesn't.
I have had my PI torque converter installed going on 2 years now and I haven't had a problem with my transmission. Only problem I've had is smoking my tires a little too often
![Wink](https://www.clublexus.com/forums/images/smilies/wink.gif)
Anytime you do a performance mod, you are adding extra stress to the system. Sometimes it works. Sometimes it doesn't.
#14
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Originally posted by verylost
You can't really blame the PI torque converter for the tranny failures. It could be that the tranny couldn't take the extra stress or was already in the process of failing. The torque converter just expedited the failure. I also don't think TurboB6 and Boost are making stock power either.
I have had my PI torque converter installed going on 2 years now and I haven't had a problem with my transmission. Only problem I've had is smoking my tires a little too often![Wink](https://www.clublexus.com/forums/images/smilies/wink.gif)
Anytime you do a performance mod, you are adding extra stress to the system. Sometimes it works. Sometimes it doesn't.
You can't really blame the PI torque converter for the tranny failures. It could be that the tranny couldn't take the extra stress or was already in the process of failing. The torque converter just expedited the failure. I also don't think TurboB6 and Boost are making stock power either.
I have had my PI torque converter installed going on 2 years now and I haven't had a problem with my transmission. Only problem I've had is smoking my tires a little too often
![Wink](https://www.clublexus.com/forums/images/smilies/wink.gif)
Anytime you do a performance mod, you are adding extra stress to the system. Sometimes it works. Sometimes it doesn't.
#15
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My 2 cents.... with REAL WORLD experience,
I have had the purple dragon in my car for two years now with about 100 miles a day. It has been rock solid. I would be carefull about over zealous claims of increased performance, but is is definetely quicker of the line.... the guy in the 740il I smoked (off the line) found that out
You need real HP gains to realize any mid-to top end gains, but the converter was still a good investment. Just avoid any "inflated marketing claims " and you will be happy, as I have been.
I did have initial problems with it, but the guys at PI fixed everything and explained that there had been some clearance issues on the early Dragons which could destroy the front oil seal... which is what happede to me.. but they made good on it, and I am happy with the results... for a car this heavy.
928
I have had the purple dragon in my car for two years now with about 100 miles a day. It has been rock solid. I would be carefull about over zealous claims of increased performance, but is is definetely quicker of the line.... the guy in the 740il I smoked (off the line) found that out
![Smilie](https://www.clublexus.com/forums/images/smilies/smile.gif)
I did have initial problems with it, but the guys at PI fixed everything and explained that there had been some clearance issues on the early Dragons which could destroy the front oil seal... which is what happede to me.. but they made good on it, and I am happy with the results... for a car this heavy.
928