Wow, I'm surprised at the results, very impressive! Scott are you running E85 as well with your setup?

 

No. I only have a mid-pipe, tune, and drop-in filters on 93.

 

Not bad from the 60 roll. I'm sure he spun on the 30 roll.

 

According to the power levels and weight, the ZR1 "should" have won the higher roll races. Forget about him hooking on the 30 roll. There is about a 500lb weight difference which equates to about 50 horse benefit the Z would have over the GTR.

Either the tune is off or the ZR1 was heat soaked as far as power #s go. The driver was shifting like a ***** so not driver error.

Or, the GTR is a little stronger then advertised. The E85 does have it's benefits, especially the cooling effect over 93 pump. Either way, the GTR won this one.

Good races.

 

or the GTR transmission cancels the 50 horse benefit. In my experience when racing a stock 13 GTR BE with my old set up (pulley/tune/intake) 12 Shelby Cobra, my 12 Shelby has to make 75 more wheel horse power to be pretty even with the GTR, with me driving the snot out of it, even though our curb weight is similar. These results look pretty spot on to me and I bet a little timing was being pulled from the ZR1 if those were back to back runs too.

 

Hmmm 570 with intake pulley and a tune? usually i see them in the 620ish 630 range with those mods.