i saw some "AEM Tru-Power Pulleys" for like $170...i've heard good thigns bout pulleys but i've also heard they give u a rough idle...are these things a waste of $$$ of what are gains/advantages that you all have noticed...
P.S.-IF i get em' they're gonna go in a GSR motor thats in a 98 ex

the ones i was looking at---->http://www.performancepartz.com/index.php?cPath=542_574

 

They are a waste. The power gains are minimal at best and I have heard of fried alternators because of them.

 

it would be more beneficial to use that 170 dollars on something else like a intake or something

 

Or save it for gas money....

 

They aren't as bad as everbody been saying they are. You can usually expect about a 10 horsepwer on some cars a 20-25 horsepwer gain can be evident.

 

When I see the dyno charts, I will believe it but until then, I call :bs: on 10 hp.

 

Well, wouldn't lightened pulleys be targetted towards reduced rotational inertia?

In that instance I wouldn't think that it would show up as numbers, so much as increased response.

 

lol, and the tornado really adds hp too.
I've never once seen an actual dyno chart of before and after (pulleys) that showed a gain of more then about 3whp somewhere in the powerband. I'd say at best expect 1whp from adding those pulley's.

 

:lmfao: Prove it. h:

I've had these and they are worthless. In fact, they are actually detrimental to your charging system due to the fact that the alt. pulley is larger causing it to turn the alternator SLOWER. They are crap.

 

not only are they useless but the lack of dampening for the crank pulley will destroy your main bearings.