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Jake Raby · 10-02-2012, 09:46 AM

I tested our 4" UD pulley for 2.5 years, even with a 28 channel data logger it was impossible to tell which plots came from the factory pulley or the UDP and that included different operating environments from mid teens to over 100F, both track and street. The biggest difference you'll see on the track is the temp of the power steering pump and fluid. We originally applied these pulleys in an effort to extend PS pump and fluid life on track.

We see a solid 5RWHP gain with every UDP that we install.

10-02-2012, 09:46 AM	#4
Jake Raby Engine Surgeon Join Date: Aug 2008 Location: Cleveland GA USA Posts: 2,425	I tested our 4" UD pulley for 2.5 years, even with a 28 channel data logger it was impossible to tell which plots came from the factory pulley or the UDP and that included different operating environments from mid teens to over 100F, both track and street. The biggest difference you'll see on the track is the temp of the power steering pump and fluid. We originally applied these pulleys in an effort to extend PS pump and fluid life on track. We see a solid 5RWHP gain with every UDP that we install. __________________ 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 Last edited by Jake Raby; 10-02-2012 at 09:50 AM.