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I have a set of Steeda pulleys waiting in my garage for me to install this week. I just had may car Dynoed recently and I am having it done again next month so I wll get a pretty good idea just how much the pulleys help.
I emailed Steeda a few weeks ago to ask a couple of simple questions before I ordered and they didn't think it was necessary to respond which concerns me about their customer service.
Call Steeda and ask for Steve - he'll answer all your questions.
They work fine...I've had them on my car for a week now...but they are coming off next week. I was using them to spin my TVS blower slower...but I want to up the boost so I am going back to the stock damper pulley. PM me if you want to buy mine. They are virtually new. A/C lights and stereo work fine...and I do NOT have HID lights...HID's actually draw less power than filament halogen bulbs.
An electric water pump will not add better horsepower than underdrive pulleys, and its an additional electrical component that can fail.
If the pump were ever to fair, your engine would overheat fairly quickly and you risk serious engine damage if you dont notice the failure. With underdrive pulleys you also slow the water pump down which extends its life.
Here is a dyno sheet off a 2010 GT we did underdrive pulleys on recently.
Was that just pulleys or were there other changes too?
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2008 GT/CS 5 Speed
Control Arms, Prothane MM's
Aluminum DS, McLeod RST/Fidanza FW
FRPP Ceramic Shorties
FRPP Whipple HO
Built Motor
I have a set of Steeda pulleys waiting in my garage for me to install this week. I just had may car Dynoed recently and I am having it done again next month so I wll get a pretty good idea just how much the pulleys help.
I emailed Steeda a few weeks ago to ask a couple of simple questions before I ordered and they didn't think it was necessary to respond which concerns me about their customer service.
We respond to every email we actually receive, and conversely, not every email we send gets to the people we send them to. Thank spam filters for that.
Give us a call when in doubt if you need anything. You will find unlike many companies who put you through automated answering services, we actually pick up the phone directly during normal business hours and give you a live person to talk to.
Was that just pulleys or were there other changes too?
This test if for just pullies only.
For the baseline number it was already equipped with an axle back exhaust and a K&N filter in the stock airbox. We swapped to the underdrive pulley and dyno'd it again on the same day just a few hours apart to measure just the pulley modification.
This car picked up a bit more than you would normally see. Realistic average gains are 8 to 10 horsepower for most cars, instead of 11 to 12 like this car.
I have been running the UDP for 3 months with no problem. I had the same concerns as you. I have HID and running the AC all summere and have had no problems with charging.
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