Would an intercooled twin screw have a market ?

[Rune]

Hi, my name is Rune, and i post from Norway, this is my first post here !

Me and a partner plan to develop a new kit for Viper, and Corvette based on Autorotor (same as KenneBell use)
A new unit with intercooling could safely deliver 8 psi maybe 9 psi of cold intercooled air to a stock SRT Coupe.

We have bought a SRT/10 2003 model and a new SRT Coupe as test mules.


Anyway, i thought i would ask if there is a market for a Viper setup, i know there are kits out there today, but they are limited to 5 psi, due to lack of intercooling



regards
Rune

[JimmyCrackcorn]

I think they go higher than 5psi without intercooling, its up to the engine if its built to hold the boost. I think up to 12 is fine without intercooling at least, but what do I know? I only modified Mustangs that could stand that much, maybe the Vipers are different.
And dont forget, for some states, or maybe California shit laws are the only one, but it needs to pass a smog test.

[The Former PFR]

Well, to be honest, the ROE kits can go up to 12psi, and with the methanol injection they work pretty well. Your kit is probably very good and likely an improvement on the standard Roe kit. I believe that Sean was, at one point, designing a air/ water intercooler for the Roe, but it never got off the ground for some reason. As cheap as some of these new DIY and Rear Turbo kits are going for from Heffner, SVS, TNT, and CPE, I'll be surprised if the market is that big. I am sorry to say that I think you missed your window of opportunity. If you had introduced them 3 years ago, you would have probably had better success. But anyway, welcome to the boards and I wish you luck with your project. Run some numbers and tell us how it does. There are still some who will only run a supercharger and for them, they may have found their new kit.


P.S. You may have been thinking of a boost restriction based on the cast internals of the cream-puff which are all cars built 2000-on. Before you do anything with those engines, get some forged internals in those SRTs or you are just wasting your time.

[Simms]

Sean Roe had a prototype intercooler that utilized coolant which was to be mounted in a new lower intake. The problem was the compressor had no more room to fit under the hood if a larger intake was needed to fit the intercooler. In addition, if the intercooler happened leak, antifreeze would have dumped right into the motor. Roe decided to take the water/methanol approach which is an old proven method. He started with a base kit from Snow Performance and made the necessary changes to make it viper specific.

When Kenne Bell was creating their twin screw kit for the Hemi, it had and intercooler in place. From what I understand, this kit never made it into production.

I believe Stillen or maybe another company has an intercooler like I explained above with their Chevy truck kits.

[E-Double]

Originally Posted by Simms

Roe decided to take the water/methanol approach which is an old proven method. He started with a base kit from Snow Performance and made the necessary changes to make it viper specific.

Is it triggered by boost or by wide open throttle?

[Doc]

Water Methanol injection is triggered by a preset PSI. There are 1 and 2 stage kits, when I had a stillen twin-screw on my 350Z I used a single stage to trigger at 4 psi (it was a 8 psi blower).

Intercooling the positive displacement superchargers is routinely done. Mercedes and cadillac do it all the time. So does Stillen on the Z.\

Commenting for the OP, I don't think it is the intercooler that is keeping people from running higher boost. As was brought up earlier, forged internals would be needed. Granted the IC would help with detonation problems, but the idea of the cheap supercharger is to get some great performance while keeping around 5-8k. If you are rebuilding the engine, well that's too much money.

I e-mailed Roe to ask if they were working on a SRT system and they replied that one should be coming out in the spring.