jhans114

iTrader: (3)

Anyone running a 3.33 or 3.25 pulley? and if so any new problems? How much boost will you get for these sizes? Thanks in advance! Also do I need a new belt?

jhans114

iTrader: (3)

ANYONE!?

UMD_MaxSE

iTrader: (1)

I am not SC'd, but, from what I hear, the 3.25" pulley will give you around 10.5-11 psi of boost and the 3.33" pulley will give you about 9 psi. Y2KevSE is running 3.25" pulley I think.

jhans114

iTrader: (3)

Thanks!! 1 out of 50 viewers has some info on this. Im currently running the stock 3.60 and I can only get up to 5 1/2psi. Actually Kev is running 3.125 which is really high boost.

Deac

I just got my Supercharger a week ago and I was wondering why I was only getting up to 5psi of boost...I was beginning to think something was wrong with my SC!!! Where can you get the smaller pulleys from anyways?

jhans114

iTrader: (3)

Not your SC. Mine is only boosting 5-5 1/2psi. Here is the link for smaller pullies.
http://www.vortechsuperchargers.com/...es/pulley.html
The one for our supercharger is the one with the 6ribs.
Good luck and how do you like you SC and what type of tranny do you have?

Deac

I meant to say that I'm running the stock pulley too and I was wondering why I wasn't getting alot of boost! I have a 2k1 5spd and I love my SC so far...love that SC "whistle"!!!

Deac

What measurement is the stock pulley? Is the 3.125 the 6-rib or the 3.33... which one is the best to get without pushing it too much?

jhans114

iTrader: (3)

Thats normal. The highest boost I got was 5 1/2psi. Im gonna get the 3.33 size for now and see how much I can boost, plus a custom water-cooler for the SC. Right now im about 245fwhp and 230lbs torque. After the smaller pulley and the cooler I should be around 275fwhp. By the way saw your page, nice max! Im Superblack on black 2! Check it out!

jhans114

iTrader: (3)

The smaller you go the more boost. 3.125 is pretty high the only guy here that is running that is Y2KevSE.
STOCK: 3.60 = 5-6psi - safe
3.48 = 6-7psi - safe
3.33 = 8-9psi - safe
3.25 = 9-10psi - not sure
3.125 = 11-12psi - not sure

Deac

Tht link you posted has a small write-up after each pulley...once you get down to the 3.125, it says..."will void vortech SC warranty!!" All the ones from that one on down say that so...I guerss its safe to assume that 3.125 on down is pushing it!!

PS I was looking at your site too nice max...

max'n out

5.5 is normal for the stock pulley espeically if your auto. 3.25 should be fine if you change the fmu and sparks. May want to mod the tranny some more to put it down better and the ecu to raise the rev limiter so you get all the boost and more power. 3.25 is 10psi you need a 6 rib belt MUST. Vortech and stillen prob arn't going to honer any warrenty at all so put that aside.

jhans114

iTrader: (3)

I was thinking of going with 3.33 and the Super FMU from Vortech. It has 5 adjustable settings. And I already upgraded the ignition. Only thing is contemplating if I should go down to 3.25... hmmmmm

Y2KevSE

iTrader: (13)

3.60 = 6.5 psi - safe
3.48 = 7.5 - safe
3.33 = 8-9 psi - safe but be careful
3.25 = 10 psi - somewhat safe, start to look for a new tranny
3.125 = 11 psi - not too safe, better have a tranny sitting around
2.87 = 13 psi - boom
2.62 = 14 psi - kaboom

Dario

iTrader: (1)

hope u have a tranny sitting around

jhans114

iTrader: (3)

does anyone know how much of an increase each pulley downgrade gives to the wheels?

Y2KevSE

iTrader: (13)

Me?

Y2KevSE

iTrader: (13)

About 10 whp per psi... more or less.

jhans114

iTrader: (3)

Thanks! and tried to go edit profile and delete those messages but once i go in there it says there are no messages. im

Y2KevSE

iTrader: (13)

Check your sent mail box.

Deac

On the Vortech website under pulleys, it says they will still honor your warranty if you have a 3.25...anything less than that..."would be uncivilized"!!!

max'n out

I say call level ten no matter what. Mod the tranny real nice. It's worth it for everyreason in the world. Stronger trany. Bettershifts. More power going down. More performance all around. Faster than a 5 speed.

sp6040

for those of you that have the v2.i hear that the down fall to these are the plactic sc pulley.so would it make sense to purchase a new pulley from vortech at the start? also if i go to a 3.33 pulley would i have to modify anything else i already plan on doing the vb first.

im just trying to get as much info as possible before i spend about 4,000 for the sc. and yes i have tried searching.didnt really find an answer to my questions.

Y2KevSE

iTrader: (13)

What sort of search did you use?

I hope you didn't find that the SC pulleys were made out of plastic.

The New CLIMAX

iTrader: (1)

sp6040

ok with a little more research i found that its the v2 sc idle pulley that plastic and can melt.my question is when you go with a smaller pulley such as a 3.33 will this cause your idle pulley to melt? Or will it melt with stock pulley and just beating on the car such as taking it to the track and constant racing?

also if the sc idle pulley is the only problem where can we get a aluminum or titanium idle pulley can any machime shop custom make one?

Y2KevSE

iTrader: (13)

The plastic pulley will melt no matter which SC pulley you use. Stillen didn't do a good job designing it. It's not the idler pulley that melts, it's the tensioner pulley. I don't know why people call it that, because they are two totally different things.

A couple members are trying to get aluminum pulleys made.

IceY2K1

iTrader: (3)

Kev, you should contact Brian Catts about making that pulley. I'm pretty sure his fab shop could copy the stock one and make it out of whatever.

Also, I know not too many people have a SC, but more and more do and some such as myself like to keep up on the "learning pains" you guys go through incase someday we actually score a SC. Anyways, do you think a "SC Q&A" sticky would be worthwhile to keep all the SC Q&A in? Plus, it would be a list of current SC owners for people to ask questions from.

That way everyone will know where to find answers to the basic questions without so many repeats such as what pulley size = what psi, what is a safe boost level if I do/don't have an intercooler, is this normal behavior, what mods do I need to add if I have an auto, what additional accessories do I need to monitor fuel pressure/EGT/A/F, and soon to come how to replace my tranny.

P.S: When are you going to swap to a 3" Y-pipe and exhaust? I'm betting your flowing enough air to need one. I've heard that a less restrictive exhaust can prevent preignition on engines pushing a lot of boost. Any truth?

sp6040

i think this a very good idea because i have a few more question that are listed in the prievious reply.kev didnt you have a tensioner pulley custom made? was it expensive to have it done? what type of metal is it made of? i hear even the aluminum pulley can melt so i guess titanium is the way to go. i definetly will not purchase a sc enless the pulley issue is resolved.

ohboiya

iTrader: (3)

just curious ... has n e 1 w/ a SC taken it 2 the track? how much time does it actually take off your 1/4 mile & 0-60?

Y2KevSE

iTrader: (13)

The SC Q&A should be in the General Forum if we do decide on this. I did put up a list of boost and pulley sizes in our 5th gen FAQ. If you guys see something you want to get FAQ'ed, just give me a PM or email and I'll be happy to include it in our list.

I'm not sure if I want to go with a 3" pipe. I know I'll make more power with the boost I'm running, but then I would have to sell the GReddy and Stillen y pipe (which has the EGT probe in it already).

I've never heard of an exhaust causing preignition. It'll kill your hp and torque though (just like an exhaust that is too big).

P.S. I'm working with someone on the pulley situation.

Y2KevSE

iTrader: (13)

I'm working with someone on a new pulley. He should have it completed really soon.

Y2KevSE

iTrader: (13)

8.93 @ 152.6 mph... need to tune my NAWZ.

sp6040

im glad to hear that. finally when im ready to purchase my sc i can have some peace of mind. let me know how it works out.

jgadlage

iTrader: (1)

Best time before SC: 15.72
Best time after SC: 14.7

That on bad shocks, bad tires, and a full tank of gas. Not bad. Time to try out my new Kumho's!

jhans114

iTrader: (3)

Just curious what pulley are you running and how much fwhp?

IceY2K1

iTrader: (3)

What is the crank pulley diameter in inches?

What is the MAX rpm you can shift at?

Thanks.

jgadlage

iTrader: (1)

I am running the stock pulley (3.60) and running about 315hp at the crank or 255hp at the wheels.

sp6040

so i take it that the smaller the pulley the more boost and hp it adds. it this correct?

jhans114

iTrader: (3)

That is correct. Im running a 3.33 and I have about 298.2hp to the wheels which is about 348hp to the crank. Each pulley you go down in size is about 10-12 whp.