Underdrive Crank Pulley
Just wanted to get some peoples thoughts on these. I've been readin about them on and off these past couple of days, it looks like the arguements have been going both ways on the benefits and the downsides.. and would like the boards opinions on em. The good.. bad n ugly.. hehe
only person i know with one is dan :(
This was going to be my next mod, also.
Mmmm... boost? Si Si.
http://www.boostin.net/adsig2.jpg
unless you have a fully blueprinted/internally balanced motor, I wouldn't do it... the crank pulley's got your harmonic damper(sp?) and the underdrive one's I've seen don't...
Mods:
Walboro 255/PTE 680cc injectors
FMIC/14b turbo
3" GM MAF with translator
Stainless brake and clutch lines
eibach springs, 2" drop, camber kit
For my daily driver, I am of the school that the theoretical negatives of a solid underdrive pulley outweigh the theoretical positives. If I had a built, full race motor that only needed to run for 10 seconds at a time, then I guess I might consider one. How much are the solid underdrive pulleys?
Buschur's website has a dampened underdrive pulley for 350, with belts.
When my oem pulley fails (again), a new oem pulley will replace it. I'd rather spend my money somewhere else.
Yes, do NOT run that Solid pulley on ANY daily driven car, with the only way for harmonics to be absorbed is by the t.belt your crank bearings will go away in a few months! , if anything go with something SFI approved like the Buschur damnpner.Originally Posted by Jon
"Swilling NA beer and Leaded Fuel is my Hobbie"
I am getting married so you can have your Girlfriend back...
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