Just to counterpoint the above:

1) The products you mentioned are whole products designed from scratch. The designers can do anything they want with a new product like that, so long as it makes sense for profitability of the product (or in some cases, ahem xbox360/ps2, so long as you can hope to rape a profit on the games by selling the unit at a loss, but I digress). So they get to design to a given final spec up-front without many questions as to whether it's possible.

This is very different from designing an add-on part for a car, where lots of issues are out of your control design-wise, and you just have to see what you can or can't make work during engineering and testing, and then see what ultimate numbers you come up with at that point ($$, hps gains, etc) and report them.

2) For many of the items you listed above, the mfg actually stayed quite tight-lipped about any real details (in some cases, even the existence of the product) right up until launch time. The information the public got was initially largely through analysts' speculations, employee leaks, and the rumor mill. Eventually there's usually a phase just before product launch where they send test units to reviewers and have them sign an NDA that states exactly which details they can release and when, but by that point the design phase is pretty much done. Virtually nobody releases public details while the design phase is still ongoing.

If you want some rough idea of what Stillen is likely to produce, I would recommend looking at the publicly available data on their website for the existing VQ35 supercharger kits they've produced. We have no idea if the new VQ37VHR kits will be very similar to this (there could have been massive design changes perhaps), but even if that's the case, I would imagine they're aiming for similar price and/or performance goals to their past kits, so it does give you a little perspective on what to expect.

I appreciate your intelligent response to my questions. IMO Stillen and others should be far enough to give rough estimates of the gains, costs and final price. If they are not that far then it would be nice to hear then that they are a year or so away and just be honest with us. IMO the stillen roots supercharger shows a large range (3 stages) going from poor to respectable gains for the 350z kits. If that range is the same for the 370 then they could say so. I suppose my largest gripe is that there is no information being "leaked"(usually intentionally by the company) and I and others should not be left to wait for an unknown period of time and it is through my experience Stillen would benefit from letting us know what we can hope for, expect, get excited for and save up for in a time period. Maybe Stillen is many months away and it is in their best interest to say nothing. That way they don't loose everyone by saying they are a year away.
I feel like a mushroom...being fed $hit and kept in the dark...

I can appreciate the fact that you're looking for detailed information, power gains, etc. I know that's common amongst other companies pushing product without testing, especially in the turbo kit world. As they have anything running, they are quick to get it onto a dyno, and start large buzz campaigns, etc. We understand that can be huge in the world of getting people excited, and creating intent.

STILLEN operates differently in regards to forced induction, as the kits we develop always go through a rigorous R&D and testing process, costing analysis, market research and as with previous kits, CARB testing and approval, even to the point of securing engine warranties on the VQ35 kits.

I apologize we have not released detailed information, but know that it is being worked on here, and as all of the final testing and particulars are closer to the actual production version, we'll be talking about them more.

No intentions of making you feel like a mushroom on our end..

Hey Josh can I get the first kit :)

Whichever one makes the most power...ok now forget carb and make it more powerful...ok then send it ;)

Josh,

Thanks for the response and input. I look forward to hearing and seeing what you are able to put together over there at Stilen!
John

Thanks John! Trust me I'll be the one standing in front of Steve's office looking for the go ahead to release details. This is a perfect platform for a strong supercharger system.

We're all very excited. :)

Throw me a bone here!!! Is there any info out there???

I'd be interested to see the 370z Supercharger kit myself. To be honest though, I wouldn't be happy without atleast 450whp. I might be asking a lot, but I own an LS2 and an LS3 :P

With a supercharger and full bolt-ons, I'd say a 370Z should do a decent job keeping up with a stock '08+ Corvette.

seriously? lol........


i would hope they would walk a stock vette supercharged. the base vettes are only pulling high 12's, where the lowest we have seen STOCK is a 13.1 from the 370z. i stayed door to door with a new m3 coupe up to 105 mph and neither pulled. i would call b.s, but i was there! lol

Yeah..no. Base Corvettes were running high-12s ten years ago. A few owners have run high-11s at 117-119 MPH in bone stock '08 or '09 base Corvettes, but on average they run 12.2-12.4 @ 116-118 MPH. As per the list on another site, the top-5 fastest supercharged 350Zs will only be able to keep up with an LS3 Corvette.

11's at 119mph in a base stock c-6 vette? i need some of what your on.....

Actually, 121.2 MPH on the best run:

YouTube - Showroom Stock LS3 runs 11.7

Corvette Forum - View Single Post - C6 1/4 Mile Performance Challenge

http://forums.corvetteforum.com/c6-c...ew-record.html

The new LS3 Vette's are nuts.

i hope to all hell stillen uses TVS instead of twin screw

go to GTMmotorsports....projects

There was a guy with the handle "Ranger" who ran 11.9's at 117ish in a C5 Z06... those only had 405 hp or so. Vette's are downright nasty.

Every now and then I wish I got one over the Z because I want that kind of 115+ mph trapping power. :driving:

Why no twin screw?

2 bad GM always cheaps on on interior though. Even the 80k vettes alway look lacking to me for the price--It has always baffled me

That's really one of the only reasons I didn't go for the 'Vette. I felt like the Z was the better built of the two... interior quality on the Z just blows the 'Vette away... but the power of that LS3 is such a rush!

I know I'm not going to be happy with the Z until 400whp or so. :driving:

This is gonna sound random but m4a1 will get it......

I want the 'vette with Virginia plates: Y IM BRKE

Damn that thing is a beast and sounded AWESOME!!! ;)

It was ridiculous. Cammed with test pipes. :tup:

I'd go twin screw over TVS anyday so long as it's not roots(which TVS IS). Go positive displacement less heat, less horsepower to drive, and oh yeah a whipple 140ax can push 600 at the wheels with a boost line flat at 25psi from 1.5-8k rpms. Maybe then the kit won't suck like the last 4 lobe roots crap blower they used.

:tup:

This is true. I loved Whipples for the Mustangs.

My 1996 LT4 ran 12.71 @ 111.98 on stock tires with just headers and exhaust. With a 12.5 to 1 398ci stroker motor, it ran 10.83 @ 132.5. Biggest problem was tracks would not let me run because it did not have a roll bar.

Rented a new LS3 out in CA a couple of weeks ago...... the real deal and much, much faster than my modded Z. With full bolt-ons my Z makes 317 at the wheel. Look at what a stock LS3 with headers makes.

LS3 Engine Dyno Testing @ Texas Speed!!! - Corvette Forum

Who's smoking what?

my wife's pontiac G8 has an LS3 and that big *** sedan is definately faster than my Nismo 370 :(

My Rx-7 has an LS2 and that this is definately faster than my Nismo 370 :(

My kid has an 18 Volt power wheels Jeep, and that thing is faster than my .... (j/k this line is a joke.)

what did it put at the wheels?

i'll admit, with the driver mod and light mods, they are faster than i thought. i did run one in my old S/C tacoma (~400hp) on the freeway, and i was really disappointed in the vette (base c-6, prob ls2).

p.s, i didnt say you were smoking anything :p

U can't compare a V8 to our V6, both are great motors, but that extra 90 hp in the V8 plus the added torque is alil too much for a 370Z to keep up with. Thats why the 370Z will be a beast with a supercharger & bolt-ons/tune.

I've raced 1/4 mile (at track), and beat my buddies G8 GT everytime no prob. Does your wife have the GTX?

keep it on topic folks.

I can see how it is hard to stay on topic seeing as there aren't any superchargers out for the 370, but I don't care how important your ls w/etf is or what your 1/4 mile time is (unless it's relevant like a supercharged z), don't post it here go start a thread somewhere titled "Let's All Fight Like Drunks For 7 Pages About LS vs. VQ"

Edit: OMG I can't stop laughing when I read that:roflpuke2:

Back in january we have received two 370Z's one was for a GTM twin turbo kit and the other was for a GTM supercharger kit, Will eight month later our gtm twin turbo kit has been released last month and we are over 50 % completed on the Supercharger kit , both of the cars will be displayed at sema.

So we will Offer a GTM supercharger kit for the 370Z .

You can fallow some of the progress on our web site on the project cars sections

Here are the links

GTM TWIN TURBO 370Z GTM Motorsports*::*Project Cars*::*GTM TWIN TURBO 370Z

GTM SUPERCHARGED 370Z GTM Motorsports*::*Project Cars*::*GTM SUPERCHARGED 370Z

Stay tuned

Sam

Thanks for the update Sam.

Looks like you guys are using a Rotrex blower?

you mean a gxp?

the ls3 only comes in the gxp model

what he means is his wifes gt with the 6.0 ls4 v8 will smoke his nismo

The gxp gets the 6.2 which will really smoke his nismo but then again he has the nismo which is by all accounts that i've ever seen in no way faster than the sport so we might as well just say his 370

Edit: dammit i participated in it. Oh the death of a thread...

Immediately below is the dyno sheet showing bone stock vs bolt-ons on my LT4 Corvette. The car ran a 12.72 on factory tires and gears. On the next run it ran a 8.19 1/8th which was quicker but in power shifting 4th gear, I broke the syncro. It would easily have run a 12.6 or even a high 12.5 had I not broken the gear. This was the only track session (total of 5 runs) with the car in this configuration and I was in a learning curve as to what the car liked and how to drive it.

Stock vs bolt on mods picture by dennylmclain - Photobucket


After 3 blocks, 4 sets of heads, 7-8 camshafts, 3 sets of headers, three intakes and literally 100's of dyno pulls the car ran a 10.82 on M/T slicks. Here's the dyno sheet. Remember I'm a stickler on average hp within intended application and the car was capable of more peak hp, but when shifting at 7200 rpm the car made more overall power using this head/cam combination. The best N/A pull was 481 but I misplaced the dyno sheet. Best on Nitrous was over 700.


472 sae run picture by dennylmclain - Photobucket

you mean ls2?

Back on topic... If we wanted to know about a crappy domestic we would log into the slowvette forums. Does anyone have any more information on the GTM Supercharger?

Just a note here before you flame me for talking chit about the corvette, I owned one, worked on several, would never own one again.... the ONLY good thing about the vette is the motor.... everything else in my opinion is garbage.......

Sorry, the Vette chassis is a thing of beauty. Light weight and able to sustain a LOT of power.