Underdrive pulley recommendations?

[amondc]

Have not had any problems with this 4" pulley.

Chris

[Jake Raby]

Originally Posted by amondc

Have not had any problems with this 4" pulley.

Chris

Me either ;-0

[23109VC]

on a 2.7L 5 speed - would insalling this pulley create a noticeable difference in acceleration? would engine rev up faster... even if just a little bit..would it be enough to notice?

given the relatively modest price of a pulley - it might be a worthwhile mod if it didn't hurt anything and could actually make some gains that could really be noticed...

[amondc]

I guess it depends on how sensitive your butt is. The pulley will add about 10hp.

[Jake Raby]

So far these pulleys have proven to give me the best improvements in real performance. They bolt on more than an ECU flash or a 3,000.00 exhaust system.

[pboard66]

I apologize in advance for the newbie question, but is there a noticeable increase in vibration? I threw an UDP on my 4 cylinder commuter and although I was happy with the small power gain, I do notice some resonance in the cabin.

[Boxster44]

Ques - when you say Underdrive Pulley and HP gains, are you assuming w/o A/C?... or still have A/C connected?

Would there be more HP gain w/o driving A/C?

thanks,

kj