Underdrive Pulleys (Worth the Money?)

[04bigblue]

I was wondering if anyone has installed underdrive pulleys on their Mach? If so could you share the results and give me your opinion if it is worth the investment. :thumbs:

[nitemare]

i have UDP pulleys on my mach. it was the first mod i did and it improved my gas milage a little and the SOTP meter said i was good. i didnt have it dyno'd til after many more mods were done though so i cant tell u power output from them

[fstltlfkr]

I installed the Steed UD Pulleys the same day I dynoed my car, it only resulted in a 1-2 HP gain from an early morning dyno pull before they were installed! Hope that helps ya out on any decision making!!! :beer:

[chuckspeed]

Don't do it.

the motor has some heat dissipation issues; the underdrives exacerbate the condition. also - the accessory drive system is designed to have less parasitic loss than the old 5.0's, so U/D's only add a few HP at best.

You're better off adding the electric water pump - it's more $$, but you free up HP while improving the cooling characteristics of the motor.

[MIB]

Ya really dont want it to get to hot :thud: Elecric water pump.. good idea :beer: