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-   -   15% overdrive crank pulley (https://www.performancetrucks.net/forums/forced-induction-159/15%25-overdrive-crank-pulley-554680/)

terravast4 02-04-2019 12:29 PM
15% overdrive crank pulley
 
Has anyone here went up from a 10% overdrive to a 15%. How much more boost did you gain? How much more power?

03sierraslt 02-04-2019 01:05 PM
Wasn’t aware anyone made them? Or that it would even fit with truck accessories.

Atomic 02-04-2019 03:43 PM
I would be surprised if it fit with the factory waterpump. Looks like 1-1.5psi in most cases going from 10% to 15%.

terravast4 02-05-2019 12:52 PM
Innovate makes one

03sierraslt 02-05-2019 12:57 PM
Wow, on a 10% there was next to no room at the water pump pulley with the belt on. . Can’t see how that would fit.


fyi. Once over 20,000 blower rpm my TVS didn’t gain much at all. It picked up boost but was so far out of its efficiency range power didn’t do much.

arthursc2 02-05-2019 01:23 PM
It fits if you route differently, according to the guy at LSSimple


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