Thread: Supercharger swap questions

Originally Posted by smws6ta

I was hoping the ECM was there so I could pull the tuning profile off of it but it was already gone.

You cannot use the stock tune for L32. The compression is different. I stress that you need a specific tune for this swap, and while I've seen it done using a canned tune, I don't recommend it. Also, for down the road, since the compression is higher, you have to start looking into solutions to manage your kr a lot quicker than the same pulley size on L32. Also, I know most top swaps mandate colder spark plugs by a degree or two. Another thing to consider is that the timing chain is different on the L32 than L26 (L26 is advanced 1% if I remember correctly) so this has to be accounted for unless you plan on changing the timing chain assembly. Even though everything bolts up, these engines do have their differences so please be careful.

And yes, I goofed, on your model you do not need a different throttle body, they are the same from L32 to L26. You just can't use a dbw one. No adapter needed since you have gen V.

Nice find btw!