I wrote to Jim at Gravana Tuning about their progress on their twincharger system and this the response I got......


Project is coming along slowly, as the installation is requiring serious mods (relocating the electrical and brake system boxes to the passenger side) to accommodate this type of installation. Since the kit cost will most-likely exceed $8k, and the inherent risk of relocating things like brake lines and electrical boxes will cause problems, we will probably not build these kits for consumer sales. We initially started the project with consumers in mind. However, we are finding this type of product to be far from consumer friendly.

On a lighter note, we are working on two alternate options. The first is a 20-30HP (approx.) upgrade. Since the pulleys are integrated on the Magnusons, it is not reliable to simply replace the pulley. Thus, we are working toward a front-end replacement that will offer a simple solution with no computer tuning needed. The second option is a complete Supercharger upgrade that will offer 75-100HP (approx.) over stock. Stay tuned and pray with us that we can get GM to cooperate with computer data on the second option!!!

Jim

 

Sweet. Wonder what blower they are going to use for the upgrade. Also, I think it would be interesting to see vortech or someone to come out with a centrifigal blower upgrade, like they did with the '03-'04 cobra's. Or maybe even an intercooler upgrade like they make for the cobra's.

 

my bet is a m90. vamp, you better make up you mind if you want to swap in the m90 soon so you can be the first

 

Go ahead he can be the first to blow his engine too

 

Well, that just about ends it for me. The CSS was attractive to me as an alternative to the SRT-4 as I value my comfort pretty highly. That was assuming it could be modded to at least match the -4 in acceleration. I believed twin-charging would have been a very good step in that direction. While I do enjoy mid-range power more than most, the high-end pull of a turbo is calling my name.

I will still hold off on my purchase until I see what a s/c modification can achieve, but I am not optimistic.

 

so i guess everyone is going to stay below 300hp because theyre afraid of their engine. Someone's gotta be first at everything.

And no, he doesnt necessarily have to blow his engine. There is a 4.2 pulley available for the m90 so he doesnt have to run a crazy amount of boost if he doesnt want to.

 

I'm glad to here there is a confirmed account of upgrade kits being developed. Another 100hp would be nice.

 

twin screw supercharger anybody?

 

mail me your m90, I'll put it on my car I am fearless

 

Hell no im looking to put out at least 350-400..i was just saying make sure the **** works and who really cares about being first...and yes i thought about putting the m90 on my car

 

I would definetly go for a twin screw some time in the future after the car is a little closer to paid off

 

PSI-FI is also working on a twin charging project. I don't think they are very far along either.

 

I am selling my sc kit, but i already have a buyer. If anyone wants a m90 to work out an adaptor plate email GTPED@msn.com . He is a grand prix used parts dealer and he has a "few" SC laying around SCs usually cost about $200-300 for a complete SC.

The m90 will NOT bolt on. You will need to have an adaptor plate made for the oulter and the TB.

 

i already contacted whipple and they say there are no projects in the making at this time. they said possibly after sema, but they're not sure.... does anyone else make a decent one?

 

i think a few superchargers(different choices) would be great. eaton's are very parasitic. they eat up alot of your power just to operate compared to the other brands

 

That sucks I was really excitied to see the CSS might be able to be "easily" twin charged and whoop some ass out on the road.... oh well

 

you can make one fit, just need an adapter plate man.

 

you can make anything fit with enough adaptor plates

 

That's what she said

 

So I am guess it looks like there won't be much to do to our cars?

 

i'm sure there will be plenty, we just need to wait and let someone start the ball rolling.... after that everyone will be on board

 

i think vamp had the best mentality when he PM'd me about an m90

 

Of course there will be upgrades! This cars has gots lots of potential and the aftermarket and GM know it! For now, it just a waiting game.....

 

All good things come to those who wait !

 

Well twin charging seemed im practical anyway...Well don't give your hope's up just yet out SS/SC's are fairly new still and soon enough we will have a vast aftermarket of parts...