ZR-1 Net Registry Forums - View Single Post

Paul Workman · 09-12-2018

I can't imagine a mechanic swapping PROMS, unless he had access to a program and installed it into the new "chip". That swap biz, I've never heard of before. (BUT! Then again, I am not aware of anyone who's taken their Z to a dealer/mechanic either!

I favor the DYNOJET test route. We've got LOTS of graphs to compare with.

BTW.. I think you might just be spoiled. A C6 ZO6 is lighter and makes 100+ (peak) hp more and a ton more torque (mid-range) at the crank than your ZR-1. So, seat of the pants would favor the C6 (427 vs. 350!) and be no surprise there.

On the other hand, a fully ported 5.7L LT5 w/ headers, "X" pipe and a tune can make 510 crank hp at around 6800 rpm. The results on a straightaway might just surprise an LS7 C6 Z06!

09-12-2018	#5
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: Follow up to Lost an need help I can't imagine a mechanic swapping PROMS, unless he had access to a program and installed it into the new "chip". That swap biz, I've never heard of before. (BUT! Then again, I am not aware of anyone who's taken their Z to a dealer/mechanic either! I favor the DYNOJET test route. We've got LOTS of graphs to compare with. BTW.. I think you might just be spoiled. A C6 ZO6 is lighter and makes 100+ (peak) hp more and a ton more torque (mid-range) at the crank than your ZR-1. So, seat of the pants would favor the C6 (427 vs. 350!) and be no surprise there. On the other hand, a fully ported 5.7L LT5 w/ headers, "X" pipe and a tune can make 510 crank hp at around 6800 rpm. The results on a straightaway might just surprise an LS7 C6 Z06! Last edited by Paul Workman; 09-12-2018 at 11:50 AM.