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crank shaft pulley

1027 Views 5 Replies 5 Participants Last post by  BruteTitan
has anyone done the crank shaft pulley up grade if so, is it worth it and how much are the gains?
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I have a 15% Under Drive Crank Pulley that comes in at about 1 lb. Took a couple tenths off my 1/4 mile time.
There was a guy running around selling them for a spell.

WRP Technologies is what he went by. I think the Crank Pullies are great but he's made some other products that weren't as spec'd nor did what he claimed.

He took a good deal of heat over it. Claimed things that were not true....just not a good business man.
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