How much boost is too much?

[Brutal87]

I have a Vortech V1 charger thats putting out 6psi right now.

I would like to change the crank pulley & the blower pulley. What size can I goto? How much boost can I get out of this charger without killing it?

Also I planned to upgrade to 42lb injectors, larger mass air & 75mm T/B.

edit: What is this charger called? A-Trim?? S-Trim?? & will pulleys from other Vortechs work as long as they are the same rib?

Thanks
Carl :metal:

[QWKSNKE]

I believe it would a S trim.

Depending on your tune you could go up to 14 psi

[osofast]

How old is the blower? A-trim's also said V1 on the housing. I spun an A up to 13psi, but it wasn't very efficient. Went to a T-trim from there and the same pulley setup made 17#'s. T-trim=much more efficiency!

If it came with the 5-6# setup than it's either a A or SC-trim. The SC is the old S-trim, so they can be spun pretty high. So, we just need to know a little more info on the head unit.

[Brutal87]

How old is the blower? A-trim's also said V1 on the housing. I spun an A up to 13psi, but it wasn't very efficient. Went to a T-trim from there and the same pulley setup made 17#'s. T-trim=much more efficiency!

If it came with the 5-6# setup than it's either a A or SC-trim. The SC is the old S-trim, so they can be spun pretty high. So, we just need to know a little more info on the head unit.

The guy said it was new.. Thanks guys.. :metal:

[Brutal87]

..

[coupe]

I don't know about that part number, but the V1 could be an A-trim or an S-trim. Depends on the compressor wheel. If it has curved edges, it's an S-trim. Max around 14-15 psi. THe A-trim: about 9-10 psi. After that, they are generating more heat & you're better off upgrading the cam, etc.. to take the extra air.

[rtusnake]

I run my s trim to pretty much max capacity and its around 14 or 15

[Brutal87]

A-Trim huh??

http://i8.photobucket.com/albums/a27/HazePerformance/Mustang%20Teardown/atrim.jpg

Also I'm runnin a 3.33 charger pulley. What pulley sizes do you recommend to get 10psi?

Thanks guys.. You have been a huge help.. :chug:

[Shankin]

A-Trim huh??

http://i8.photobucket.com/albums/a27/HazePerformance/Mustang%20Teardown/atrim.jpg

Also I'm runnin a 3.33 charger pulley. What pulley sizes do you recommend to get 10psi?

Thanks guys.. You have been a huge help.. :chug:

A 6.87 crank and a 3.33 upper will make 10psi on a smaller combo heads etc. the s trim will make 18 psi and is capable of about 610 to the tires through a stick depending on combo of course. I realy like the s trims for a street strip car that is driven on a regular basis.

[osofast]

I believe that's the SC trim. Nice blower either way. Take it to 10 at the very least.

[Brutal87]

Well guys.. is it a

SC trim, A Trim or S Trim?

:popcorn:

Also can I get away with using a 73mm M/A, 70mm T/B & 36lb injectors?

[Sukkoi19]

Pretty sure thats an S-Trim. All of a sudden my confidence isnt what it should be. S-Trims as stated from Vortech can see 20 psi. While it migh not be the most efficient its possible.

I ran an S-Trim to about 11# on a mild H/C/I and made 488 rwhp then I fixed my sneaky vacuum leaks and saw 14-15#s. The pulley combo I used was a 7" crank with a 2.95" blower pulley 8 rib. I would suggest you run an 8" crank with a 3.33" blower pulley, this should net you 15#s pretty easily and keep belt slip to a minimum.

This is where I get all my pullies:

http://www.aspracing.com/frame.htm

[coupe]

S-trim. (Blade leading edge curves over). 36's and the other stuff can get you around 450 at the wheels.
:nice:

[osofast]

Did it come stock with the 6" lower pulley and the 3.33 upper(5-6#setup)? If so, it's an SC trim. Remember, it's the same design as the older S trims.

and yes you can get away with using that setup. Just regulate the fuel. 36#'ers will take you pretty far.

[Brutal87]

Did it come stock with the 6" lower pulley and the 3.33 upper(5-6#setup)? If so, it's an SC trim. Remember, it's the same design as the older S trims.

and yes you can get away with using that setup. Just regulate the fuel. 36#'ers will take you pretty far.

SC huh??.. So what kinda power & max boost can I get out of the SC??


Thanks again guys. :metal:

[Sukkoi19]

http://www.vortechsuperchargers.com/products/units/performance.html

Helical cut gear profile with SQ technology
Near silent operation
Fits engines up to 680 horsepower
Maximum airflow: 1,000 CFM *
Maximum boost pressure: 20 PSI *
Maximum impeller speed: 53,000 RPM
Adiabatic efficiency: 75% **
Available with straight or curved dischargeStraight cut spur gear

Direct from Vortech. The SC is the essentially the same as the S-Trim only it has a helical cut gears and a different stup ratio. Meaning you will have to spin RPM on the blower to get the same boost as the S. Like I said, an 8" renegade crank pulley and 3.33" blower pulley will be all you will need.

[Brutal87]

[url]Near silent operation.

Mine is VERY, VERY loud. :eek: Is it still the SC?

[osofast]

Yes, it's the SQ that's quiet. The Q standing for quiet.

[The Rock 326]

Mine is VERY, VERY loud. :eek: Is it still the SC?

It's definately the "S" then!.:turbo:

I have the "S" as well, gotta love that loud bastard!:metal: :jester:

[QWKSNKE]

It's definately the "S" then!.:turbo:

I have the "S" as well, gotta love that loud bastard!:metal: :jester:


you guys should hear a procharger. Mine is loud as hell

[TheJeanyus]

you guys should hear a procharger. Mine is loud as hell
:werd: I don't know how you stand that thing on the Dragon Run. It would drive me crazy. :wacko:

[Brutal87]

Thanks for all the help guys.. :worship: