Underdrive Pulley thoughts

kcquinn49 · 06-17-2012, 07:37 PM

I've read both sides over and over. Is there anybody here who has used light weight pulleys and has had damaged that is attributed to the pulleys? If so, please speak up.

I've researched these and the Unorthodox seem to be the lightest. On their site they say that each pound lost on pulley weight is equal to 2.7 HP. That would be about 10 HP. They didn't state how that is spread across the rpm band.

DEpointfive0 · 06-18-2012, 11:08 AM

Thank you for posting that!

Well, I have met Mike at NST, and he did work on my last car, and I know he know's what he's doing. So I'd personally buy from him
As for 2.7hp per pound lost, that's complete horse shite... Maybe if you lose the 4 lbs AND you dyno between A/C on and A/C off, lol

Quote:

Originally Posted by kcquinn49

I've read both sides over and over. Is there anybody here who has used light weight pulleys and has had damaged that is attributed to the pulleys? If so, please speak up.

I've researched these and the Unorthodox seem to be the lightest. On their site they say that each pound lost on pulley weight is equal to 2.7 HP. That would be about 10 HP. They didn't state how that is spread across the rpm band.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[WTB] Underdrive crank pulley	ben1620	Parts for sale (Private Classifieds)	3	04-09-2012 08:33 PM
[FOR SALE] Stillen Underdrive pulley with belt.	kellyefields	Parts for sale (Private Classifieds)	3	11-15-2011 02:14 PM
[FOR SALE] NST Underdrive Pulley Kit w/Belt	1ceasar180	Parts for sale (Private Classifieds)	9	06-27-2011 09:34 PM
stillen underdrive pulley ?	redroadster10	Engine & Drivetrain	5	04-08-2010 01:54 AM

06-17-2012, 07:37 PM	#1 (permalink)
kcquinn49 Base Member Join Date: Dec 2011 Location: Indiana Posts: 86 Drives: 2011 370Z Coupe Rep Power: 250	I've read both sides over and over. Is there anybody here who has used light weight pulleys and has had damaged that is attributed to the pulleys? If so, please speak up. I've researched these and the Unorthodox seem to be the lightest. On their site they say that each pound lost on pulley weight is equal to 2.7 HP. That would be about 10 HP. They didn't state how that is spread across the rpm band.