[xtreme02GT]

Dose anybody run/have the March Pulleys on there car??? If so has anybody had there car dynoed before and after??? I just got mine yesterday........Would like to know what ya'll think....

[Scottyboy]

I have the steeda's on mine. If I had to describe the difference, it's like when you have the a/c on. No dyno #'s though.

[bighoss88lx]

I worked on and test drove a '02 GT Wendsday that had U/D pullies and it felt slightly better than stock at higher revs. That was the only mod that it had besides flows.

[TrueBlueVenom]

i have ASP u/d pulleys. after the install, there wasn't much difference. not worth the money

[Zylone]

I don't think it is so much a matter of how much power it free's up by themselve's.. I think you get more out of them with a modified motor and other bolt-on's.. *shrug*

[xtreme02GT]

Originally Posted by Zylone

I don't think it is so much a matter of how much power it free's up by themselve's.. I think you get more out of them with a modified motor and other bolt-on's.. *shrug*

I have every bolt-on you can bolt-on but cams... I put them on yesterday I don't feel much of anything, maybe it's me, or maybe I was expecting to much, I don't know........*shrug*

[ccs]

Faster rev time time, usually-how much is your set supposed to be underdriven? Should be at least 20% to make substantial difference.

jim

[xtreme02GT]

Originally Posted by ccs

Faster rev time time, usually-how much is your set supposed to be underdriven? Should be at least 20% to make substantial difference.

jim

I don't know what they are..But I do notice a faster rev at high RPM's...

[ccs]

Yeah, sometimes it's hard to quantify the gain, but the 1/4 time, or any timed acceleration test will tell the tale. I think they are worthwhile, for the gain, and money spent.

jim

[03WhiteGT]

From what I understand, Ford has gotten so aggressive with there pulley design you don't pick up as much as you used to (fox body cars). If anything, you'll get maybe 3-6 rwhp. Not something your butt meter is going to register.

[1mean4.SIK]

I had Mac pullies, and a cold air, i didnt feel a difference either, got the pullies brand new from leathal performance for 40 dollars so you cant be that. and the cold air was just a big waste of money.

[Nighthawk]

on my 03 GT i picked up 1 mph in the 1/4 from steeda pulleys and timing adjuster. so about 10 rwhp from the pair.

[propellerhead]

There's a similar thread on a Mustang message board that says the same thing. No big gains with pullies on the 99-04s.

I think I just decided to take pullies off my Want List.

[ccs]

Well, the pulleys just got slammed. How many of you are up to a pulley comparision, on the dyno?

jim

[94BOOSTDCobra]

Originally Posted by ccs

Well, the pulleys just got slammed. How many of you are up to a pulley comparision, on the dyno?

jim

...interesting.....

[Rob]

I'd be willing to do it as soon as I get pullies.

[ccs]

Just let me know-the facts will speak for themselves. BTW, 0ur dyno does have 0-60, and 1/4 testing abilities, and those tests complete the story, on gains gotten.

jim

[propellerhead]

Originally Posted by ccs

Just let me know-the facts will speak for themselves. BTW, 0ur dyno does have 0-60, and 1/4 testing abilities, and those tests complete the story, on gains gotten.

jim

What do you need? Two identical cars? One car and a set of pullies?

I'm curious to see the gains. At this point, all I've heard is maybe 5-7 HP. Then some people claim problems at idle and some don't. I'm totally sold on gears but just not yet. I'm still undecided on pullies.

[ccs]

3-5 cars, one stock, one aftermarket on each one. This ensures repeatability on brands, and more than one car. Yes, we have to switch the pulleys between tests.

jim

[propellerhead]

Originally Posted by ccs

3-5 cars, one stock, one aftermarket on each one. This ensures repeatability on brands, and more than one car. Yes, we have to switch the pulleys between tests.

jim

I could probably plan for being in Austin for a day. I assume you have a shop area to do the pully swaps.

Cost?