Thread: Another vote for under drive pulley
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Old 10-10-2013, 08:41 PM   #10
Jake Raby
Engine Surgeon
 
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
Quote:
Originally Posted by thstone View Post
In this thread (fourth post), engine builder Jake Raby says that he has measured +5HP at the rear wheels when using a UDP.

http://986forum.com/forums/general-discussions/37563-underdrive-pulley-questions.html
We see this number over and over again with the 4" pulley. The UDP is THE best bolt on for net gains available.
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Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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