iturk

Good Idea Or Bad Idea? I have heard mixed results but no one that has actually had it installed.

Quote is 8-16 hp. Your thoughts?

Unorthodox Ultra SS Pulley Set Instock Now!

BRAND NEW IN SEALED BOX

Aluminum Underdrive Crank, Alternator, Power Steering Pulley Set

DESCRIPTION
Unorthodox Racing Ultra Street lightened underdrive crank pulleys. Our pulleys are CNC-machined from lightweight 6061-T6 aluminum billet. Premium U.S. made 6061-T6 aluminum billet ensures the consistency of the material's strength and balance. Tolerances are held to within .001", and numerous machining steps are used to ensure the lightest possible design. In addition to fit, finish is just as important and each piece is representative of this. Every pulley is inspected multiple times from machining to anodizing to stocking and finally at shipping time. If at any point a pulley does not pass inspection it is pulled from production.

FEATURE
Unorthodox Racing lightened underdrive crank pulleys on average can provide gains of 5 to 12 HP and 4 to 8 lbs.-ft. on normally aspirated engines and 8 to 16 HP and 8 to 18 lbs.-ft. on forced induction engines. Higher gains are possible.

ATH

Boom

ATH

Since no one added any comments, that's the sound of your engine blowing ;-)

iturk

UGGG, have you seen this before or just heard stories.

ATH

Search the archives for "underdrive pulley" - there is a plethora of opinion about them

tuan

Had it on my car for 15,000 miles. No problems whatsoever.

Funkweasel

"knowledge base" on performance parts/issues is pathetic.

dscottjr

IMO, and this is just MO, you can run the pulley or a lwfw but not both.

BASELINE

YGM!!

BASELINE

I feel your pain, man.....most people knock this mod....its called "fear of the unkown" :-)