Exhaust or Headers?
Yeah, the lightened pulleys make a big diff, imo. The stock ones are straight iron where the URs are nice and light, depending on your transmission 6TM or 5AT you'll notice quicker downshifts or upshifts, and a little bit better throttle response with the lighter weight. FYI, UR is stating 8 to 12 HP gain, but not sure if its rwhp or not. I know with my 2 upgrades now I can peel around corners too easy.
I went lightened, if you go Underdrive you might have issues with water pump or alternator, or AC if you still use it, plus a new belt. Feel free to correct me if I'm wrong. Weight loss of approx 8 to 10 I'd say, the biggest benefit being your crank pulley


Sorry for large images
I went lightened, if you go Underdrive you might have issues with water pump or alternator, or AC if you still use it, plus a new belt. Feel free to correct me if I'm wrong. Weight loss of approx 8 to 10 I'd say, the biggest benefit being your crank pulley


Sorry for large images
Originally Posted by c.breeze_gt
i heard that the pulleys can screw up ur a/c...
. If you go with the underdrive its going to underdrive all your components, i.e, less rpms for your water pump, alternator and important engine components. Imo standard pulleys will still give you good reliability with increased power.
icic...well, as im looking on everythingg35.com, i see that there is the Unorthodox Racing Ultra SS Pulley set and the Unorthodox Racing Underdrive crank pulley. so i should not get the underdrive crank pulley because it will underdrive all my electrical stuff ex. ac, water pump, power steering? and instead get the ultra ss pulley set? i also found this on Unorthodox Racing's website: Pulley Set: Stock Diameter (Ultra SSc).
Originally Posted by c.breeze_gt
icic...well, as im looking on everythingg35.com, i see that there is the Unorthodox Racing Ultra SS Pulley set and the Unorthodox Racing Underdrive crank pulley. so i should not get the underdrive crank pulley because it will underdrive all my electrical stuff ex. ac, water pump, power steering? and instead get the ultra ss pulley set? i also found this on Unorthodox Racing's website: Pulley Set: Stock Diameter (Ultra SSc).
Originally Posted by barrettbenson
What about Pulleys? Underdrive or Just Lightened? And does it make that much difference?
Thread
Thread Starter
Forum
Replies
Last Post
magnetism80
G35 Coupe V35 2003 - 07
5
Jan 27, 2016 12:57 PM








