i know its no max but Sport compact car's project neon showed 5hp to the wheels on an unorthdox underdrive pulley,so looks like ill be tryin one out soon

 

do a search on the subject. we've said dozens of times that it's a good mod and frees up quite a bit of power.

 

i was happy with mine. .. .

 

yeah figured id do a thread on it because i do know that it is a contraversial mod

 

No complaints here either. They don't really create horse power. They just divert some of what it takes to spin that much heavier factory pulley and turn the accessories to the wheels. My VE auto revs like a friggen food processor now! I'd go for it.

 

Hehehe me wants a UDP

 

I love my UDP also. I can feel the extra low end power. My 60' time dropped a full tenth. My 1/4 mile time only dropped 2 tenths. So, as you can see, you jump out of the whole a little faster. The biggest thing you will notice is your tach needle will jump much faster. The throttle response is really good on my car.

The pulley only cost me $105 after tax (state of NV) and shipping. The belts cost me about $30 and the labor was free. It was a pretty good bang for the buck. At the time, I needed new belts and the main oil seal replaced. So, I said, might as well put a better pulley on while I'm at it.