Mankra

I have the T-Trim Version with the new Intercooler kit.
Do you offeres a 3.2" Pulley for 6 Rips? I thougt, 3,4" is the smallest (canīt find 3.2" on your Website).
What is the max. impeller rpm for the T-Trim (I canīt find it on your Website or on Vortech Website), also 50.000?

HighMileage

Andy,

I actually have a C4 with a P1SC procharger. Crank pulley is stock 7" and a 3.6" blower pulley. Exhaust is done, shorty headers and flowmaster forceII cat backs. I am seeing 7 to 7.5 pounds boost at 6000 RPM. Forged 21cc blower pistons and 9 to 9.5:1 CR.

I am looking to increase boost more and think the LT1 procharger intercooler may be a restriction. I think with some fab work I could try to make one of your C5 or C6 intercoolers fit into may car. They are all bottom feeders and have a similar radiator arrangement.

So a few questions:
1. Is this possible, has anyone tried to do it ( I am not afraid....)

2. What do you typically see for boost on C5 cars with a P1SC and my pulley arrangement. The C5's seem to make more boost with larger pulleys and better induction flow.

3. Do you know how much pressure loss this is across your intercooler?

4. I also noticed the inlet to the supercharger is a hard 90 degree bend and thins near the head unit itself. I have heard that the inlet restriction near the head can cost a couple of pounds. I would be looking to fab 3" inlet (still may need a 90 degree bend, but at least could try to keep it a 3" connection.

I am looking to step up to 11 or 12 pounds, maybe more if the intercooler permits. I calculated that an ATI 7.5'' balancer and 3" supercharger pulley should get me at 11 pounds.

0Steve@AandACorvette

The smallest 6-rib that we carry is a 3.4". The MAX impeller speed for a T-Trim is 55,000. (plus or minus ) Vortech has a 3.25 and a some smaller ones, but they won't have the shoulders...

http://www.vortechsuperchargers.com/product.php?p=42

0Steve@AandACorvette

I think you would be the first!

The boost number with those pulleys would be way higher on a stock motor... I bet you would see 15 psi

I believe the new setup had less than 1 psi loss.

It's true that in a perfect world, you would have a straight 3 1/2" pipe to the supercharger, but with the radiator and hood constraints...

It's hard to say for sure... get the pulleys and fire it up!

Mankra

Thankyou

Lexicon

I have a question for Andy and Steve about their kits. I don't see a lot of people doing H&C w/ a kit and have questions on both.

Cam: I see the stage 3 being used a lot but not the stage 4+. It seems that he lift on the stage 3 is no where near what the LS2 can do with any good head. Why not go stage 4 or 5? The head should be good for .650 and even the 4s don't hit .600. What happens to driveability going from 3 to 4+?

Heads: I am looking at heads w/ Yella Terra 1.7s, and throwing in the GM Caddy racing lifters. The Patriot Performance stage 3 243s seem to be a great option but the intake runners are 227cc. I thought that was too big for the 4.00" bore LS2. Can you clarify if this is a good choice that won't hurt midrange power? Also, this head has a slightly larger combusiton chamber at 68cc. This means that a bit more boost can be added without additional strain on the motor.

This leads into the big quesiton of what pulley? I am looking for max overrev (7000? 7500?) with the head an cam so that means a smaller pully so as to not oversping the SC. On the other hand I really want to be at the limit of the stock LS2 bottom end for boost. I know how to run the calculations, and based on the boost / compression ratio of your other cars it would be in the 8.5lbs range. So, again, what pulley and what RPMs can we turn?

Thanks to you both.

arkus

Im thinking about going this route .
How much $$ and HP
my motor is stock

evo2ls1

i have a 99 FRC with bolt ons with 4'10's, would a base supercharger kit with 7-8 lbs boost be too much power for the gears i have? what does a car like mine with those mods and your kit usually trap in the 1/4? i think at 6500 rpm i can get to 126 mph? Thanks!

NemesisC5

You will certainly have the power to do so, but 4.10's may have you run out of gear before the finish line. Open Excel spreadsheet below to play with numbers.

His Dudeness

Hey Andy and Steve,

Do you feel that the power levels produced by your standard kit would enable a basically stock 2003 (intake, borlas) M6 to play with the C6Zs?

If not, would it take an upgraded kit or would something like headers and a nice blower cam to fatten up the torque under the curve be the answer?

Thanks

imxz28

I'm sure Andy will chime in when he sees this. I can assure you a C5 with his standard kit will hang with any stock C6z.

0Steve@AandACorvette

Going by dyno numbers...a C6Z stock put out around 440ish at the wheels... A stock 2003 manual with our system will be around 520ish... (on 91 octane.) Soooo i would say they would play nicely together.

TheCartel

Hey Steve, what have you got as far as a longer intercooler to TB pipe for us that's SD with no MAF?

0Steve@AandACorvette

I don't have a longer tube to fit in there... I guess you could use a piece of 3.5" tube... or leave the MAF in there unplugged? I might have some 3.5" tube that we could cut and put a bead roll on the edges.

His Dudeness

Eeeexcellent. We've got 93 octane out here in Illinois

Looks like I'm going to forgo any other mods and just go straight to the blower one of these days when I have a bit of spare cash.

NemesisC5

You guys should think about this as an option for owners wanting to run SD

TheCartel

NemesisC5

Kinda surprised I haven't seen this offered yet....by anybody...

D C

what a great idea

Jims Z06

Hi Andy,