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TTi stage 1 issue question

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Old Jul 26, 2008 | 07:28 PM
  #1  
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Default TTi stage 1 issue question

Finally got the whole thing installed ...
Started the car and a lots of white smoke came out in the exhaust system (I am using smaller than 3AN oil fitting); however, after driving a bit, most the smoke goes away (I would say 90%).
The biggest issue right now is that after driving about couple minutes, the car running too rich (my wideband gauge shows lowest AFR 9 point something) and super hesitating. The car barely gets to 30 mph and when I step on the gas, it would hesitate and dies.
If I stop the car and let it cool down, it would run again for couple minutes.
I used to have D1SC supercharging with 60 lbs injectors and just swapped it out to TTi stage 1 w/o changing any tuning.
Do y'all thing it is tuning issue or turbo issue?
Thanks,
-Mike
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Old Jul 26, 2008 | 09:06 PM
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Originally Posted by Vetteguy2008
Finally got the whole thing installed ...
Started the car and a lots of white smoke came out in the exhaust system (I am using smaller than 3AN oil fitting); however, after driving a bit, most the smoke goes away (I would say 90%).
The biggest issue right now is that after driving about couple minutes, the car running too rich (my wideband gauge shows lowest AFR 9 point something) and super hesitating. The car barely gets to 30 mph and when I step on the gas, it would hesitate and dies.
If I stop the car and let it cool down, it would run again for couple minutes.
I used to have D1SC supercharging with 60 lbs injectors and just swapped it out to TTi stage 1 w/o changing any tuning.
Do y'all thing it is tuning issue or turbo issue?
Thanks,
-Mike

Seems to be really simple issue of tuning problem AFR should be in the 11's or so.
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Old Jul 26, 2008 | 09:22 PM
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Originally Posted by ajg1915
Seems to be really simple issue of tuning problem AFR should be in the 11's or so.
When the car first started, AFR in 12.5, when I drive it around 2000 RPM, AFR is around 14.5. When I stepped on it, let say 3500 - 4000 RPM, AFR around 11.5 - 12.5.
But after couple minutes, when I just step a little on the gas pedal, it would go to around 9 AFR.
I got HP tuner, 60 lbs injectors, and CATs ...
I'll try to ask people to lean it out and test it out tomorrow.
Thanks,
-Mike
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Old Jul 26, 2008 | 09:37 PM
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Originally Posted by Vetteguy2008
When the car first started, AFR in 12.5, when I drive it around 2000 RPM, AFR is around 14.5. When I stepped on it, let say 3500 - 4000 RPM, AFR around 11.5 - 12.5.
But after couple minutes, when I just step a little on the gas pedal, it would go to around 9 AFR.
I got HP tuner, 60 lbs injectors, and CATs ...
I'll try to ask people to lean it out and test it out tomorrow.
Thanks,
-Mike
You're not far from 21CMC, I would sign it up for a dyno tune.
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Old Jul 26, 2008 | 09:40 PM
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Originally Posted by ajg1915
You're not far from 21CMC, I would sign it up for a dyno tune.
I don't wanna tow the car there
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Old Jul 26, 2008 | 09:41 PM
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Originally Posted by Vetteguy2008
I don't wanna tow the car there
Not sure what tuning software you're using but maybe you can post up in FI section for someone to provide you with a base tune that would allow you to drive your car over.

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