Hey guys from the looks of it many of the rev-up vortech guys are looking to go 2.62 pulley as am I. Another member said to contact Unorthodox company to create a custom setup to help with belt slippage. Just to have a number to work with how many people are interested. Belt slippage FTL!!!

1. Lancers7705
2.
3.
4.
5.
6.
7.

 

If the rev up has a 32 tooth blower pulley [ not for sure ] Why not go down to the 30 or 28 tooth blower cog pulley ? You can keep the bigger serp pulley for better belt grabbing ability and still raise boost . Vortech sells the 28 and 30 tooth cogs .

 

You're also going to be overdriving the blower with anything past 5900RPM. Your seals will be more likely to go bad faster.

I think the Revup has the same 28 tooth pulley as the non-Revup on the blower.

 

Wish someone with a rev up would count the teeth on the blower cog and the jackshaft cog so we know for sure .

And every one that has gone to smaller serp pulleys for more boost are increasing the risk of the seals going out . Price you pay for more boost .

 

It's in the manual. Jackshaft pulley is 34T and SC pulley is 32T on RevUps.

 

Ok...then we know for sure then and my first post states the much better option to make more boost . Rev-up guys have it made

 

so if i went with the 28 tooth cog pulley, what psi would i see? I think i'll go with 28 tooth cog pulley and 2.87 pulley

 

Probably a 3-4 psi increase.

 

Wish someone with a rev up would count the teeth on the blower cog and the jackshaft cog so we know for sure .

And every one that has gone to smaller serp pulleys for more boost are increasing the risk of the seals going out . Price you pay for more boost .

counted them this morning, 34 on jackshaft cog and 32 on blower

 

whoops i ment to quote that

 

dude check the impeller speed calc on vortech's site before posting bad information.

the impeller speed on a revup with 34T J, 3.12 Serp and 28T SC will be within spec up to 6600 RPM

the impeller speed on a revup with 34T J, 32T SC and 2.62 Serp will be within spec up to 6300 RPM

use it http://www.vortechsuperchargers.com/...d%20Calculator

again as hargots stated the revup comes stock with a 34T Jackshaft, 32T Supercharger and 3.12 Serpentine pulleys.

the V-2 SQ SC-Trim is rated for 53,000 RPM

and I agree with booger I think the best route for us revup's is to go 30T or 28T SC pulley. The only question is will our gates belt be to big after the swap.

 

Hmmm . . . so using the Vortech impeller speed calc, looks like I am good up to 6800rpm. I'm running the 2.87 Serp. pulley with the 34 tooth jackshaft and 32 tooth SC on my revup. I gotta remember to set my shift light to that. I don't get into that range very often anyways but it's better to be safe than sorry. This is really good info fellas! Thanks!

 

just upgrade the blower to get more boost... its cheaper

 

Eventually it might come to that. Either that or add some NOS!

 

i just ordered the 28T SC pulley from vortech. I'll let ya know how it goes.

 

Yeah, definitely let us know how it goes bro.

 

I forgot that I used the non-revup pulley specs. You are still overdriving the pulley since revup redline is well past 6300. It was just a heads up for the people who didn't know.

 

please let us know STAT!, if that goes well then I will go with the 28T and 2.87

 

Me too!!!

 

Bump