hPower

Ok, so we all know that some of the SC owners around here have had issues with their units leaking, blowing, or failing. There have been some who have been real quick with jumping on the "lets blame the pulleys bandwagon."

I for one do not think the pulley itself can cause this, I have spoken to several good tuners and they all seem to agree that it is probably more of an issue of improper installation, but whatever.

Let us assume for the sake of argument that the pulleys could cause such problems. We have one TRD pulley and two aftermarket pulleys on the market at this point, right? ZPI 9.0psi and NST 9.5psi

THOSE OF YOU WITH AFTERMARKET SC PULLEYS WHO HAVE HAD S/C FAILURE.... WHICH PULLEY WERE YOU USING AT THE TIME ???


Also, please lets keep all the comments about "TRD sucks," or "TRD rules you guys suck," or "mod and I told you so," etc. out of this one. PLEASE.

NiKo

very interesting waiting on the results of this one like u know hpower just got my nst pulley and i did decide to keep it so we will c what happens

Garage1217

iTrader: (5)

No issues with my sc and the NST pulley. If a pulley can cause the issues a handfull of people have experienced, then the issues is going to happen to you anyways since all the pulley does is increase rotational speed of the sc. I for one say a pulley will not cause the issues people are having.

Jake_tC

I agree with you to a point. However, there are limits for everything. RPM of an engine are the perfect example. That's why there's a redline.

Since the issue at hand are the 9.5 psi pulleys...I don't think those in particular are contributing to any problems. The 12 psi is a different story and I really don't have an opinion of that.

kytc

I'll see how the 12 goes on mine but I'm not expecting any problems

Garage1217

iTrader: (5)

Well since technically the ftrim and the shaft system / bearings vortech uses are rated for 60K max rpm / 20psi peak boost I think the pulleys we use are safe as with the 9.5 psi pulley we are turning far far less than that, even with the 12 psi we are still way below rated limits.

kytc

^Exactly

Nick06tC

watching for results.

ryno379

Nick your car looks awesome

Nick06tC

Thank you.




This poll is great. So many people claim that the supercharger is falling apart when you add a pulle,yet look at how many people have no problems. ( I really think its the header and/or dealer installs causing the problems)

Someone should start a thread for headers like this one.

20tCDude05

Yea, I want to run at LEAST 10 PSI for the S/C I will be getting if that is not too much. I don't know who makes the 10 PSI belts or the 12 PSI belts. Can anyone help me out on this?

Jake_tC

The good thing about the TRD reflash is that they tune it pretty conservatively with a very rich air/fuel mixture. You can run a 9.5 psi pulley and not worry about a tune. Although, there probably is a few hp to be gained with a good tuning from a piggyback or something.

However, say goodbye to warranty.

trdsparks

Watching. Don't worry that's all I'm doing.

20tCDude05

Well, warranty doesn't mean squat if nothing will happen and I think it's a year long, so I might can wait that long.

ryno379

lol

hPower

Keep hitting the poll you guys, I know there are more SC owners here.

Simplyscion

Well, yellowt00tr had the ZPI pulley and had leaks on his first one which was replaced under warranty, and I have the NST pulley but I think its error due to install

PghtC

Simplyscion

yea yea yea, I know...the worst thing about this is how do you go up to your head shop steward, A Mechanic that has been there for 15 plus years and tell him (as a salesman of cars, not mechanic) that he is installing the supercharger wrong. I have a great relationship with these guys and the last thing I wanna do is go and ruin it by trying to be a know it all with them.

PghtC

Just ask them if they are torquing the bolts to spec with a torque wrench, or if they just tighten it down by feel. I know what you mean though, it is tough to teach an old dog new tricks.