SCM_Crash

Charlie at CMS here in L.A. quoted me $575 for the labor to do the clutch and frame savers. I'd need to pick up a clutch or have him buy one. I had a friend that'd get me a clutch for about $200 that would have been good for the supercharged LS6. Charlie recommended a ACT single disc that was $425. But that was to hold a bit more power than a S/C vert would make.

However, that was to be added to the S/C install.

Z06Electron

Sweet thanks for the heads up, I'm not doing it myself to save $500.

SCM_Crash

No problem.

c5BlackBeauty

Good choice on getting into a Vert

powderski13

The cost of the blower & install is approx $7k. The cost of power & reliability is $7k +++. Need to consider valve springs, cooling, tranny upgrades & differential upgrades. My 02 vert is 580 rwhp.

Stomp'N'Go

I'm around 500 hp with my 04 Vert, all I can say is," It's a whole lotta fun...

moserbe

Had to have the A4 upgraded soon after the supercharger install.

rbrtclk

This is for a twin screw supercharger.

500HPVette

I've got a built a4 and h/c motor at 400rwhp - at 6psi or so, what rwhp can i expect?

SCM_Crash

Depends on the cam. If your LSA is lower than 115 on the cam, you're going to get less out of the blower. The lower LSA is good on N/A cars, but with a blower, a lot of the air you're forcing in goes out the exhaust due to the extra overlap. People are finding that the stock LS6 cam from the 02+ Z06s are actually really good blower cams.

What are the specs on your cam and what heads do you have? Do you have any exhaust work done?

500HPVette

It is a 228/232 cam. It is either 114 or 115 lsa. The heads are I *think* lingenfelter ported stage 2 heads. Have also long tube headers, and z06 titanium exhaust.

SCM_Crash

What's the lift on that cam. Sounds like a it's a big cam. What's your power goals and is your motor forged? If not, the LS1 internals aren't going to handle much over 550RWHP for very long. Even with a spot on tune, it may not go very long.

With a cam like that and all the supporting mods at 6PSI you're probably looking at 600RWHP.

Personally, I would pull the cam out and put a smaller blower cam in. You could make 550-560RWHP safely.

Here's a way to figure out roughly what you can make. When it comes to boost, 2 bars will double your horsepower (in theory). 2 bars = ~14.5 PSI. So if you're making 400RWHP:

400 / 0.85 = ~470BHP
6 / 14.5 = 0.414
470 * 1.414 = 664BHP
664 * .85 = 564RWHP


I think you're going to make more than that, but that's a rough idea on how to figure out hp vs. boost.

500HPVette

I *think* it is a 590 lift - and this is an ls6 motor. Are the internals better in an ls6 at all or am I not gonna do so swell at 6psi there either? Oh, and I just found out it is doing 410rwhp, not 400.

Mister Peebody

Assuming that your compression ratio is = to or higher than the stock LS6, you will be able to safely run less boost than an LS1. The stock internals of your LS6 are not really better/worse for boost than a LS1.

SCM_Crash

You're still looking at over doing it I think at 6PSI. Your best bet is to change the cam or forge the internals. Running less boost with a blower wouldn't be worth it at all. You'd be running with far less efficiency. If you put a stock LS6 cam in, you'll safely make 550RWHP.

cmb396

FWIW, I have a similar setup on my 03 Z and have been thinking about doing a blower. I have 59cc 243 heads and a 228/228 113lsa cam. I have talked to the major tuners on here, Andy at A&A, Doug and Chris at ECS, and Jason at EG, and all were in agreeance that my cam is not the best but will work. The heads are questionable and probably should be replaced with some stock compression 243's or 317's. As far as the boost, 6-7lbs max for my goals which would be ~575rwhp (already at 448na). With a good tune and meth for peice of mind it will work out pretty well.

There are plenty of stock bottom C5's on here that have been running around 575-600whp for many miles and no problems. I have even seen some over 600whp cars on stock bottom end that seem to be holding up pretty well!!

SCM_Crash

Yeah, there's someone on the forums running ~700RWHP on the stock bottom and has been for a while. But that doesn't mean that's common or even smart.

My thoughts are if you're going to do it, do it right. I know that puts money in question, but that also means you should live within your means so you don't blow up your motor when you need it most (like on your way to work. LOL)

550RWHP is the safe zone on the stock bottom end. A bone stock Z06 with just an A&A blower makes 520RWHP very safely. The question is how much money you're really willing to spend. High compression and boost isn't a great combination if you're not going to build the motor for that or at least run E85.

dankhts

Officially it's 13.49 or faster for a vert, our local track however at a sanctioned event let me run a detuned 12.90 index event no one protested when I won, they let me go, but I was given a warning on a test/tune night (rice night) to "watch myself"... when I ran a few 11.70's...I wanted to run the 11.90 index this past weekend... but no roll bar...guess I'll just putt around the street with it...

Basic Saftey Requirements 2010
These rules are designed as a quick reference chart for vehicles slower than 8.00 ET. This chart does not supercede the current AHRA rulebook in any way.
Rollbar
Convertibles faster than 13.49ET; all cars 11.00 ET or faster; all cars must have padded head protection
Belts
All vehicles required to have roll bar or roll cage SFI 16.1 5pt Restraint. All others must have an accepted quick release system.

500HPVette

I think i'm just gonna be happy with the 410rwhp i have now. It is fun - and heck, if this thing were stock, it'd still be fun - it's a vert!

SCM_Crash

Good choice. 410RW is a good number. Only 30RW away from the LS7s.