Thread: Top Swap Tune on L36 PCM - HPT

if using dhp you can do that and change the vin.

hp you can do that, but the vin will be the old cars vin,

once tuning, id lower the wot timing by one degree. top swaps dont like as much timing as a l67 does.

Originally Posted by Scottydoggs

if using dhp you can do that and change the vin.

hp you can do that, but the vin will be the old cars vin,

once tuning, id lower the wot timing by one degree. top swaps dont like as much timing as a l67 does.

Thanks Scotty. So to clarify, will the PCM retain the LS VIN, even when flashed with the SS .bin?

Going to knock the timing down 4 degrees to start, then add back in after WOT scans to verify safety. I'll see how high I can go. Gonna have a Gen V stock pulley on there. Also gotta MAF tune for the LQ4/N* combo and the other f-ery I like to do in my tunes.

Also going to have to do some transmission table editing. The SS had 2.93 fdr (course you already know this) and 17" factory wheels, versus the 3.05 and 16" I have now.