Underdrive Pulley Advice

2544 Views 14 Replies 12 Participants Last post by BAD 06, Oct 18, 2003

ZeeO6

Discussion Starter · Jan 16, 2001

As some of you know my Z is getting a heads & cam upgrade the question is: should I get the underdrive pulley also? They claim around 5-10 rwhp for an additional $500.
Any help with this decision is appreciated!

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2001 Z06 Torch Red/Blk
DRM long tube headers, B&B PRT Quad Ovals, MTI ram air, BPP air duct, Xtreme rolled exhaust plate, B&M ripper with Momo Combat/red, MSD wires, Splitfire plugs, CAGS.

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PA_Z06

· #2 · Jan 16, 2001

2

These will as you know slow down your accessories. If your running any accessories that pull a lot of electrical current. Your alternator may not be able to keep up. Just my 2 cents.

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My Web Site

01 Z06 - No time slips yet
92 RS ProStreet Camaro - Best E.T to date 10.15 @ 136 mph (all throttle no bottle)

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ZeeO6

Discussion Starter · #3 · Jan 16, 2001

Thanks PA_Z06! Anyone else?

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2001 Z06 Torch Red/Blk
DRM long tube headers, B&B PRT Quad Ovals, MTI ram air, BPP air duct, Xtreme rolled exhaust plate, B&M ripper with Momo Combat/red, MSD wires, Splitfire plugs, CAGS.

Dennis Jurs

· #4 · Jan 16, 2001

That's a lot of $$ for 5-10 hp

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Quicksilver Z06

ZO6Vette

· #5 · Jan 16, 2001

I ran the under drive pullies on my Z28 and know other F bodies that ran them. IMHO they do next to nothing other than maybe save wear and tear on your power steering, etc.

Rick

DARTH VETTER

· #6 · Jan 16, 2001

3

$500!!!! Call Auto Specialties(don't have # right now) here in Houston. It's $216(including belt) I think. They are the company that makes ALL the pulleys for Hypertech, MTI, Eckler's, Mid-Am, Tbyrne & everybody else that I can think of. There is another company in Baltimore or somewhere that makes them also & thoise are the $500 ones. They are both the same, meaning underdrive pulley/ Balancers. as far as I know. I am on the waiting listfor one also. They should be in by the end of the month.

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2001 Z06 BLACK/BLACK

MAY THE TORQUE BE WITH YOU!

HENNESSEY MOTORSPORTS
Z500 #1

BEST TIME(3rd time ever @ Track & Traction limited)
11.90 @ 123.76 MPH
w/2.12 60' I NEED DRAG RADIALS!!!

[This message has been edited by DARTH VETTER (edited 01-16-2001).]

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Mako

· #7 · Jan 17, 2001

For the minimal hp gains,mod hassel and decrease in accessories, I will pass on the pulley. If it was 20rwhp I would consider it. I am going to stick with Cold air, ported TB, DRM top end and Coles PCM tuning. Given the fact that I am not a drag-racer, and live in the land of a billion people (and cops), that will probably be it. Maybe long-tube headers, but that is doubtful since CA emissions is so tough and Dealers have caniption fits seeing them under the hood.

Good luck!

DaveZehak

· #8 · Jan 18, 2001

Remember guys 5 HP here and there add up, I will be getting pullies they worked great on my 85.

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Dave Zehak
2001 Black ZO6
Best 1/4(so far) 12.5 at 112
"Mods"
B&M Ripper Shifter
RM racing Nitrous(not installed yet)
"Previous Vettes
1985 white Corvette coupe(auto)
1998 Silver Corvette coupe (M-6)
2000 NBM Corvette Coupe (M-6)

[This message has been edited by DaveZehak (edited 01-18-2001).]

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IT L GO

· #9 · Oct 17, 2003

http://www.autospecialties.com/frame.htm

FRC Tom

· #10 · Oct 17, 2003

$500.00 is pretty high to install a $250.00 pulley while they already have the front of the car apart. All they have to do is pull one and bolt on the other. 10 min. job with the car apart already.
I do recommend them though.

JBsZ06

· #11 · Oct 18, 2003

I would definitely rethink who you are using for this project. When someone is taking you on one item theres a slight tendancy for it to happen throughout the project.

IMHO..there should be no more than a 50 dollar labor charge at the very most..In fact other than paying for the parts at approximatly 250 I believe the install should be FREE!

50 to buy him dinner at best. IMO

A 10% pulley for the 7hp for 250 is worth it but thats it.

JB

Zrod

· #12 · Oct 18, 2003

I thought the steering rack had to be dropped to do the pulley, and you could expect to pay a little more in labor to do the pulley. $200 to $300 labor for an under drive pulley is pretty common I thought. Just MHO.

Zrod

IT L GO

· #13 · Oct 18, 2003 (Edited)

Zrod said:
I thought the steering rack had to be dropped to do the pulley, and you could expect to pay a little more in labor to do the pulley. $200 to $300 labor for an under drive pulley is pretty common I thought. Just MHO.

Zrod

They are installing a cam, so they take all of that off anyhow. IMHO it should be free labor for the pully install. :cheers:

Zrod

· #14 · Oct 18, 2003

IT L GO
'
Sorry missed that part. I'll try and get my foot out of my mouth now.

Zrod

BAD 06

· #15 · Oct 18, 2003

#1 - Pulley install is normally free with a cam swap since all the stuff is already out of the way.

#2 - This thread is 2 years old and you would be lucky if he even had the car still.

#3 - I had an underdrive pulley on my Z with a 1500+ watt killer audio system with no problems at all, although I had an Optima battery.

Chad

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