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03-28-2012
I bought a 1998 GP GT For $300. it comes with a L67 Not installed but came with the car. it also has the wiring harness and ECU. so it came with the L36 from the factory but the guy threw the bottom end out of it. the car has 285,000 miles on it it needs re painted. the trans has less than 85 thousand on it. did i do good? and what all do i need for the swap. and will the L62 need Premium
a little bout me i am a wounded Iraqi war vet. i am retired as of 2009.
Last edited by drain bamaged; 03-28-2012 at 07:53 PM. Reason: wrong engine code
03-28-2012
What's an l62?
03-28-2012
He means L67.
L67 needs 91+
Sure you can swap it in. You'll need a custom tune to run the 4T65e with 3.29's because the PCM that you got will be for a 4T65e- HD with 2.93's.
03-28-2012
could i run the ecu that came with the car
03-28-2012
No it's not tuned to run a supercharged motor
03-28-2012
what is the worst that will happen if i try to run the car i need it up so i can save up for the transmission that i need?
03-28-2012
Sure.
But it will still need a custom tune to run the motor.
L67 and L36 are different, L67 is 8.5:1 and L36 is 9.5:1 compression.
L36 is NA and L67 has a blower.
The L36 pcm wont know what to do with boost and the 2 bar map and among other things.
03-28-2012
i have the l67 ecu and wiring harness that came with the motor
03-28-2012
the l67 pcm has the wrong gear ratio programed into it and needs tuned and the L36 pcm has the wrong motor programmed into it and needs tuned.
03-28-2012
will it just throw off the speedo like the four wheel drives will
03-28-2012
No if you use the L67 pcm it won't shift right.
03-28-2012
It would not know when to shift or how.
03-28-2012
great i figured that this would not go so smooth and i dont have the money for the transmission
03-28-2012
you can just get the pcm tuned it's not very expensive.
03-28-2012
it wont shift right, the computer thinks it running another gear ratio.
so tuning for the right gears is necessary.
03-28-2012
how long does it take and how much is it?
03-28-2012
You'll have to find someone close by with a tuner or send out your pcm to zzp, intense, overkill, or elsewhere to get it tuned.
03-28-2012
would the car be driveable and would it just shift early? I need the car up, I can get a transmission on the 11th.
03-28-2012
I don't think the car would even drive correctly. Grabbing another trans would be a lot more costly versus the tuned PCM.Originally Posted by drain bamaged
03-28-2012
i can get the trans from a regal with the same motor for 150
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