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View Full Version : Underdrive Crank Pulley Does What?

Ponti-MANIac
02-17-2006, 07:06 AM
If Your Not Running A Supercharger, What Does This Accomplish?
Deeavi
02-17-2006, 09:21 AM
If Your Not Running A Supercharger, What Does This Accomplish?

Slows down all accesory drives, altenator, water pump, etc. Thereby saving horsepower.

I tried several, but I ended up with a 10% under drive Fluid Damper. Any thing less and I was having temp problems in the summer time with the ac going. I have an SLP HD radiator, but the water pump just was not turning fast enough in traffic with the smaller pulleys. The 10% Under drive works good for me!
Ponti-MANIac
02-17-2006, 09:29 AM
Where can I get my hands on the 10% underdrive fluid damper?
Deeavi
02-17-2006, 10:48 AM
Where can I get my hands on the 10% underdrive fluid damper?

Part Number: FLU-720102 at Summit Racing Equipment! It is not cheep, but it is a top notch balancer.

http://store.summitracing.com/default.asp?target=/egnsearch.asp&N=400296
SeVeReDiStOrTiOn
02-17-2006, 07:09 PM
Eh....save your money and put it towards some good headers...you'll be disappointed with the gains from a UP. But if you have money to burn then go for it.