if i were to get an after market pulley would it void my warrenty? I assume it would but if it doesnt that would be amazing

 

Ya, it does.

 

hmm can i take it to mini and get the jcw pulley only? or does it have to be the whole kit

 

t has to be the whole kit. Let me rephrase what I said. The dealer will most likeley only have a problem with you having a pully if the car has some major mechanical malfunction.

 

is there much history or mechanical problems from lets say a 15% alta pulley?

 

Hardly any. Seing as the JCW pully is a 14.3% reduction, the 15% is not much of a step up. I think Randy Webb has installed many hundreds, if not thousands of 15% pullies withut problems...

 

ok thanks a lot.. gives me something to think about getting now

 

No problem

If I were you, I would just get the 15% and be happy. Thats what I did with only 2k miles on my car

 

The 15% Pulley ROCKS!...you will not regret installing one on your S. Chad at Detroit Tuned installed mine. Wow what a difference, the car really pulls in first and second gear...much quicker off the line.

 

The ALTA is not the only pulley around, there are several brands to choose from, I have installed lots of Helix pulleys, and the guys from CravenSpeed are awesome.
as the warranty goes, the dealer cannot deny a repair for something that is not related to the supercharger. There are many threads on this and please take all comments with a grain of sand, you know everyone is an expert

--Dan Z

 

We have done Altas and CravenSpeed pullies. I would recomend the Alta over the craven because the alta has 4 tightening points, whereas the Craven only has 3. The truth is that they all cost about the same, so you should pick based on Brand and quality of product.

 

Does that really matter? If it's true, wouldn't the helix be the best, it has 6...

 

The bolts do not matter. They are only there to torque the pulley together, I have installed both the ALTA and CravenSpeed. I prefer the CravenSpeed, they are also available in colors something that ALTA does not offer. Also, I have seen both locations and they both made in with the same process.

 

I know it doesn't matter much, but I prefer to have some pieve of mind. Its just like on an airplane. Sure, the chances of an engine going out are slim to none, but wouldn't you rather have 4 engines than 2 just incase one did go out?

My only issue with craven comes from their price. Why would I go with a manufacturer other than m7 or Alta and pay the same for a part that does not have the name brand to go along with it?

 

http://www.helix13.com/ < NAM Vendor

He only installs the best pulley's

 

 

Don't do a pulley or any mod that cannot be reversed such as supercharger pulley unless you are willing to deal with the possible consequences.

I was VERY VERY VERY lucky that my head gasket and then engine was replaced due to a wharped head and my pulley was not blamed.

 

how is it not reversible? Just wondering.

 

I have only heard of 1 or 2 people who have reversed the install and its not easy. Using heat and other specialized tools.

 

There are a number of excellent pulleys on the market. Being that your so close to Helix, I'd go there. From what I have seen posted, they are a top knotch supplier/installer

 

You airplane solution does not apply here, and if you believe more bolts are better then go with MINI-Madness they have 6. So that must be better by your thinking. When torqueing the bolts the center hub is locked into the pulley, that is why when removing you need to insert bolt in the other holes to push the unit apart. It takes alot of even pressure to push it back apart after it is installed.

Also, on the airplane I worked on aircraft for over 20 years the having more engines is not always the best thing.

 

+40,000 miles on my 15% Alta pulley. No problems, mate!

 

It was just an analogy. We all play brand favoritism. Mine is with Alta and M7. I am not too big a fan of craven's pully, but to each his own.

 

Actually, Craven provided pulleys for Alta until recently, they decided to go on their own when Alta sourced parts elswhere. They had to change it a little, so hence 3 bolts. I would think with less bolts = less rotating mass. They also offer aluminum pulleys.
Bottom line is: no one is really any better or worse than others.
--Dan

 

thanks for all the feedback, i am going to go down to helix and see what they can do for me and run prices most likely.. again.. thanks