Picture of our 2.8" pulley
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abolfaz
GT Owner
BlackICE
GT Owner
The holes seem to line up with the cutouts on the ribs. Is that for venting of air as the belt moves on the pulley?
Does this pulley fit your new snout, or is it for the stock blower shaft?
BlackICE
Does this pulley fit your new snout, or is it for the stock blower shaft?
BlackICE
Yes, the holes are there to help they pulley grip better.
I suppose some people would want a more stealthy pulley, but I think no matter what aftermarket pulley you put on there, a dealer that would care, would also notice. This pulley is for the stock snout.
FYI, I think you are confusing me with Kenne Bell. Although I am a Kenne Bell dealer, I'm not afilliated with them. My name is Ken Bjonnes and I own MD Motorsports.
Ken
I suppose some people would want a more stealthy pulley, but I think no matter what aftermarket pulley you put on there, a dealer that would care, would also notice. This pulley is for the stock snout.
FYI, I think you are confusing me with Kenne Bell. Although I am a Kenne Bell dealer, I'm not afilliated with them. My name is Ken Bjonnes and I own MD Motorsports.
Ken
Ken, does anything need to be done to take up the belt slack? Shorter belt? Installation of a new tensioner pulley? I would be concerned that a smaller SC pulley would loosen the belt just enough to potentially cause some slippage. Can you comment on this please? Thanks.
SuperB
Board of Directors/Owner
Forgive me for sounding stupid, but I'm a computer guy not a car guy, so here goes:
What is the size of the stock pulley?
Why are all the new pulleys 2.8 and not 2.75 or something?
Why don't they call it a pushey instead of a pulley? :biggrin
Is this something that owners would install, or does it require more than a vise grips and duct-tape?
I assume that a re-tune is certainly in order after the install?
What is the size of the stock pulley?
Why are all the new pulleys 2.8 and not 2.75 or something?
Why don't they call it a pushey instead of a pulley? :biggrin
Is this something that owners would install, or does it require more than a vise grips and duct-tape?
I assume that a re-tune is certainly in order after the install?
barondw said:
The 2.8" pulley adds approximately 3 psi to the supercharger. This is an increase of 25% over stock. I don't think the car would run properly without a tune. Adjustments need to be made to the A/F mixture, as well as spark timing in order to deal with the additional air flow. Without a tune, the car is going to run way too lean, and potentially cause some problems.
Clax said:
Clax
I run a larger "reduced pulley" 3.15" or 80 mm and the folks I used felt it was not required. But you may be correct about retuning with the 2.8" pulley. Certainly A/F mix and timing needs to be looked at because of additional air flow.
In regard to the belt mine was changed because the stock belt would no longer be in the sweet spot. I believe that either a smaller belt , tensioner change, or spacers are required when using a smaller pulley based on the knowledge of the folks I deal with.
Dave
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barondw said:
Dave,
Where did you get your belt, and how much different in length is it from stock? I have heard mixed stories about replacing the belt versus not. I have heard from some sources that the current tensioners on the car will take up the additional slack.
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