asp underdrive pulley?
Race Director
Joined: Mar 2005
Posts: 10,078
Likes: 17
Not too much of a downside at all. Your accessories will probably live a longer life by a small percentage. You may have problems with the alternator power produced though. You might see more headlight dimming than usual at idle-if you call that a problem. It happens on my stock pulley car anyway. GET IT! It will be a good mod.
Le Mans Master
Joined: Dec 2002
Posts: 6,017
Likes: 0
From: Plainfield IL
I was supposed to get it when LPE did my 485 hp headers/cam package in May. The underpulley was on back-order so I couldn't get it. I was told @ LPE that it adds about 5 extra rwhp because less power is "robbed" from the engine turning the belts in the stock setup. It was about a $300 extra. My engine did 427 rwhp on the dyno so I guess I'll just have to live w/o those extra 5. 
Drifting
Joined: Jun 2004
Posts: 1,887
Likes: 2
From: Havin' fun in Frederick, MD!!!
St. Jude Donor '05 '09
Originally Posted by Red Vamp
I was supposed to get it when LPE did my 485 hp headers/cam package in May. The underpulley was on back-order so I couldn't get it. I was told @ LPE that it adds about 5 extra rwhp because less power is "robbed" from the engine turning the belts in the stock setup. It was about a $300 extra. My engine did 427 rwhp on the dyno so I guess I'll just have to live w/o those extra 5.
Le Mans Master
Joined: Dec 2002
Posts: 6,017
Likes: 0
From: Plainfield IL
Originally Posted by lemansbleu2004
So Vamp, what did LPE charge you for the entire package w/o the underdrive pulley (I'm assuming they did all the work)? PM me if you prefer.
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Le Mans Master
Joined: Dec 2002
Posts: 6,017
Likes: 0
From: Plainfield IL
Originally Posted by jessem
SUPERCHARGER?no supercharger?
Supporting Tuner
Joined: Sep 2004
Posts: 51,896
Likes: 39
From: ================== Houston, Texas www.englandgreen.com ================== Necessary Evil™ __________
CI 6-7-8-9-10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14
Originally Posted by Red Vamp
Nope. Cam, Kooks 1 3/4 long tubes, FAST 78mm intake, Blackwing, plugs, wires, polished ls1 heads, 160 thermo, and a few other LPE goodies.
RE: Underdrive pulley. $275-$300 for a few horses. I think that money is better spent with something that will give you a better bang for the buck.
I'm doing my cam in 2 weeks and I'm not doing the UD pulley.
EG
Supporting Tuner
Joined: Sep 2004
Posts: 51,896
Likes: 39
From: ================== Houston, Texas www.englandgreen.com ================== Necessary Evil™ __________
CI 6-7-8-9-10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14
Originally Posted by jessem
England,why no pulley?i having a cam package put in in a couple of weeks and they tell me,a pulley too.
Plus you have to buy a new UD bolt and new UD belts as well - serpentine and A/C = more loot.
$300 can get me 2 sets of chromemoly pushrods (32), for example, a set of roller lifters (16) or a downpayment on a Tigershark front fascia.
It just depends on what you want to spend your money on.
EG
Supporting Tuner
Joined: Sep 2004
Posts: 51,896
Likes: 39
From: ================== Houston, Texas www.englandgreen.com ================== Necessary Evil™ __________
CI 6-7-8-9-10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14
Originally Posted by jessem
SO England,no real big deal if i don't get the pulley??and i think tigershark is shark bait!!!can get on the site for some reason!
Like I said, it just makes good practical sense to change it while you're in there doing your cam because to do it otherwise is cost prohibitive.
The Tigershark site has shut down and is going out of business.
But Tigershark is still for sale at other vendors.
EG
Thread Starter
Team Owner
Joined: Dec 2003
Posts: 57,408
Likes: 164
From: queensbury ny
pulley
i'm not sure i really like the idea of my accessories turning slower...and if i ever want a supercharger,i don't think the u.d.is good for that!i can't believe tigershark is closing down!!!wtf???
Pro
Joined: Feb 2004
Posts: 718
Likes: 1
From: barrie ontario
you can buy the U.D. pulley with an overdriven alt pulley if you are worried about your voltage dropping..
I am going to install one because I have heard about the stock pulley spinning off after being re-installed.
If you are going to have to buy another stocker it makes more sense to put that $ towards an aftermarket replacement that doesn't wobble.
Good luck whatever you decide....
I am going to install one because I have heard about the stock pulley spinning off after being re-installed.
If you are going to have to buy another stocker it makes more sense to put that $ towards an aftermarket replacement that doesn't wobble.
Good luck whatever you decide....
Race Director
Joined: Feb 2003
Posts: 11,133
Likes: 1
From: ~The DARKSIDE Group~
UD pulley decreases the HP drain caused by underhood accessories. Labor to just put the pulley on is prohibitive for the few poines gained, so the best time to do it is during a cam install. Every little bit helps. It's all cumulative.
It's your car, do what you want.
It's your car, do what you want.