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

Drives: none
Join Date: Aug 2011
Location: DFW area
Posts: 1,845
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?
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