hey just seeing if theres an interest in anyone for a group buy on underdrive pulleys. thanks

 

Tyler, perhaps a dumbas_ question but:
what's an underdrive pulley?

 

go to tvtdesign.com, store, crossfire and look at them or evosport has them, they are three pulleys and a blet that are lighter and put more power to the wheels do to easier turning of parts, i believe 6 whp.

 

Replacement pullies for your accessory drive items on the engine. (power steering pump, alternator, A.C. compressor I believe)

They are usually a slightly larger diameter than stock, and easier to turn due to the mechanical ratio, thereby robbing less HP from the engine.

 

its not the ac its the water pump

 

Id do a GB for the crank pulley

 

anybody have dyno numbers for the underdrive pulleys and for the crank pulley

 

i do not have dyno numbers but i just installed the crank pulley today.. do not notice much of a difference though.. minimal if any.. i also have the underdrive pullies and do not notice much gain from them either.. i noticed alot from the new injectors though. group buy some of those!

 

you have a n/a?, injectors and a tune? not just injectors right.

 

no tune yet.. coming as soon as i can dyno my car.. so within the next week.

 

your car is non srt-6 correct, you are saying you felt a gain from just bolting the injectors in with no tune?, just doesn't seem like you would without some kind of tune to tell the injectors to pump a certain amount of fuel or to change the duty cycle on the injectors.

 

yes its n/a.. everything about my car is in my signature...

 

Correct me if I'm wrong, but the amount of flow is determined by the size of the nozzle. The duty cycle remains the same !

Just my Dos Centavos !