View Single Post
Old 09-17-2013, 11:30 AM   #8
white ZL1

 
white ZL1's Avatar
 
Drives: 2013 ZL1 #7922
Join Date: Aug 2011
Location: DFW area
Posts: 1,698
Quote:
Originally Posted by JANNETTYRACING View Post
The 2.55 combined with this set up puts the blower at MAX Speed and the octane available at the pump will not tolerate it very well it is what we call diminishing returns.

We like the large upper pulley for max belt traction.
Ted, in your experience is the 18% lower pulley the most optimum on pump gas in this type of package then?
In other words, going to a 9.55 pulley would allow for less timing thus no significant gain in power....just more blower speed and heat?
__________________

2013 ZL1 #7922
ADM CAI, 90mm tb, 9.55 lower, LS9 cam, ID 1000s, SW 1 7/8" headers, ADM/Ron Davis hx
white ZL1 is offline   Reply With Quote