underdrive
10-29-2007, 01:34 PM
#1
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underdrive Hey just realized i still have the stock underdrive pully on. any suggetions on who makes the best, who makes the worst? dont wanna buy a pos
10-29-2007, 01:56 PM
#2
From what I understand they're all pretty much the same.. But I know someone's gonna shoot down that statement.. MTI sells a good one - www.motorsporttech.com
10-29-2007, 07:14 PM
#4
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I bought my ASP pulley from MTI, almost seven years later and all is good.
I also put another one on my T/A, three years later and all is good as well.
Peace,
Craig.
I also put another one on my T/A, three years later and all is good as well.
Peace,
Craig.
10-29-2007, 09:07 PM
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I started building my '01 first and put a SLP on it. It was a very difficult install. For the '99 I went with a ASP. Much easier install. The quality on both is excellent though. Both are doing a great job too. Anyone else had trouble with installing the SLP, or am I the only one who struggled like hell to get it installed?
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10-29-2007, 09:40 PM
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any of them.. they all do the same thing.
not to be grammar police or anything, but the stock one isnt an underdrive, it's just the crank pulley. underdrive means it's smaller than the stock one, thus drives the accessories slower, letting the engine put a little more power to the wheels.
not to be grammar police or anything, but the stock one isnt an underdrive, it's just the crank pulley. underdrive means it's smaller than the stock one, thus drives the accessories slower, letting the engine put a little more power to the wheels.
10-29-2007, 09:47 PM
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Hmmm,....one of the very common first mods people do to a car,....well over 10K invested in mods in my car and i've still yet to get around to doin the pulley.
10-29-2007, 10:08 PM
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i havent done it yet either. it's alot of money for not alot of gain. maybe when i get desperate for hp or have the money i'll buy one but for now i'm doing fine w/o it.
10-30-2007, 09:34 AM
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10-30-2007, 06:22 PM
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yeah sorry for sayin underdrive i know the diff but anyways i have alot done to mine also just figured i have everything off my front end to do my head and cam i fig i might as well do the pully while it is easy to get to thanks for all the info guys looks like ASP for me
11-01-2007, 10:09 PM
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i really want the underdrive pully! but the altenator, power streering and mostly waterpump scare me if these turn slower! my voltage will drop and and my pump would turn slower causing less coolent flow! would it be ok or im i to worried!
11-02-2007, 06:44 PM
#18
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Don't worry, you don't need an ALT pulley or any other pulley for that matter. Just get the crank pulley.
Like I said before I have an ASP crank pulley on both cars, one being a 427. On my 427 I've driven in the rain at night with the rear defroster on with a stereo that has 2 amps. I don't know how anybody would need an ALT pulley unless they have some HUGE *** system in their car.
Peace,
Craig.
Like I said before I have an ASP crank pulley on both cars, one being a 427. On my 427 I've driven in the rain at night with the rear defroster on with a stereo that has 2 amps. I don't know how anybody would need an ALT pulley unless they have some HUGE *** system in their car.
Peace,
Craig.
11-02-2007, 09:31 PM
#19
Don't worry, you don't need an ALT pulley or any other pulley for that matter. Just get the crank pulley.
Like I said before I have an ASP crank pulley on both cars, one being a 427. On my 427 I've driven in the rain at night with the rear defroster on with a stereo that has 2 amps. I don't know how anybody would need an ALT pulley unless they have some HUGE *** system in their car.
Peace,
Craig.
Like I said before I have an ASP crank pulley on both cars, one being a 427. On my 427 I've driven in the rain at night with the rear defroster on with a stereo that has 2 amps. I don't know how anybody would need an ALT pulley unless they have some HUGE *** system in their car.
Peace,
Craig.
11-02-2007, 10:32 PM
#20
I prefer my alternator to not work as hard, I have the overdrive alternator pulley even though I have a m6. With every light on, a/c and defroster, the voltage doesn't budge unless I drop to 600rpm which can happen sometimes if you release the clutch after revving up a bit or are launching off a hill. Without the overdrive, I think it'd put a bit more stress on the system as a whole.
The underdrive is rated for 25% from stock, so if you idle 900rpm for a stock m6, it'll be like you are idling 675rpm for the accessories. To put that in perspective, an auto car idles around 650rpm stock. That means all your accessories are functioning like they are in an auto car, which they can handle fine.
The underdrive is rated for 25% from stock, so if you idle 900rpm for a stock m6, it'll be like you are idling 675rpm for the accessories. To put that in perspective, an auto car idles around 650rpm stock. That means all your accessories are functioning like they are in an auto car, which they can handle fine.