CAMARO6 - View Single Post - HP gains from 2.3 upper pulley and Big Gulp

cajunzl1 · 04-10-2026, 08:51 AM

My 2018 ZL1 with a 2.3, ported TB, Std Rotofab and E55 did an easy 655 and had issues with tire spin on the dyno. Stock Blower and Stock Exhaust.

I do have the LMP heat exchanger and ADM expansion tank, IAT's would start to creep up after back to back to back pulls, but on street no problem with the temps and casual pulls.

E85 really helps.

04-10-2026, 08:51 AM	#13
cajunzl1 Drives: 2018 ZL1 Join Date: Jun 2020 Location: Louisiana Posts: 121	My 2018 ZL1 with a 2.3, ported TB, Std Rotofab and E55 did an easy 655 and had issues with tire spin on the dyno. Stock Blower and Stock Exhaust. I do have the LMP heat exchanger and ADM expansion tank, IAT's would start to creep up after back to back to back pulls, but on street no problem with the temps and casual pulls. E85 really helps.