Preparation for the STILLEN supercharger

Kyle@STILLEN

We will release our boost number, in our press release. It's not like we think we have some magic amazing boost number. Obviously it's above 4 pounds and below 10. We just prefer to announce that number in our press release.

To be honest, I have absolutely no idea how much boost Vortech has used in some of their previous kits. That would be a question for Vortech. Keep in mind this is not a Vortech kit...This is a Stillen kit utilizing a Vortech compressor. All of the engineering, testing, and development has been done by Stillen.

G Fo12ce

No magic number, no sale. Every Stillen S/C should include a magic # in the box!

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G37Sam

Nice, we're getting there.. is it above 7 and below 9?

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G Fo12ce

FAIL lol. He can still get you with decimal points, now he can answer with between 7.1 & 8.9.

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Nismo Suspension: New Owners Check Here!

stormcrow

Kyle, as much as I appreciate your candor, I still cannot grasp the reasoning behind not stating the actual PSI used to reach 422whp. I, as probably does everyone else reading this thread, understand that the boost level used to reach this number may change with the release of the kit. Whether it goes up or down in the production kit isn't as important to me as knowing what PSI was utilized to create the dyno posted in this thread. Again, I cannot fathom any legitimate reason (but, I can certainly think of plenty of illegitimate ones) why this number has not been posted. It truly does leave those of us (well, at least myself...I hate to speak for others) on the fence about which kit to utilize wondering what Stillen has to hide.

If you can give me a logical reason for waiting for the press release to state PSI after having posted a dyno chart, I will be satiated. Until then, I will probably continue to pose the same question over and over again.

And I understand this is a Stillen kit. But, you quoted another member here on their reasoning behind why 10psi would not = CARB legal. I see this as you insinuating that this is the reason why 10psi or better was not used to reach the horsepower shown in the posted dyno. I am not comparing your kit to the Vortech kit. I am merely stating that 10psi can pass CARB and I honestly do not buy that your dyno pull posted was done on anything less. It it was less, it was certainly more than 8psi.

The reason I am so verbose in my questioning is due to having been promised the world by Stillen salesmen when I researched and purchased one of your SC kits for my now sold Pathfinder. What I was sold and what I received were two completely separate items. Not physically, but in quality and performance. Having been in this game for quite some time, I am looking for complete transparency from vendors.

Speaking of tranparency, keep in mind that whatever PSI is posted in the 'Press Release' will have to reproduce 422whp all day long or people will feel duped.

Kyle@STILLEN

There are a few reasons why we have not released what PSI that test was at. The primary reason for releasing the dyno without boost numbers to follow was simply to show the capabilities of this kit without even pushing it hard. I assure you, that dyno was performed at less than 10 psi.

The main reason we do not want to release a horsepower figure in relation to a boost level is because the car we were testing on (G37 auto trans. with large 20" show wheels) was less than ideal. We are currently in the process of switching the kit to the manual gearbox 370Z with stock wheels which should be improved due to its more efficient drivetrain. It is very possible that running less boost on our Z will produce the same numbers that we saw on the G and people would say but wait...the horsepower is the same but your boost is lower...So, rather than having any confusion at all, we are switching to the more efficient car and from here on out will stay with the Z.

Also, that was a prototype run...Look at the date on the dyno, that was back on the 19th. Since then we've changed our prototype charge pipe and a few other pieces.

All we wanted to do was show the early development of the supercharger to show that it has more potential than the VQ35 supercharger did. Again, we were running less than 10 psi, and we are doing all of our tuning on 91 octane pump gas.

When we have our finished production kit we will have a finalized dyno showing the horsepower of the kit and of course we will list what psi we are running. Right now, it's too early to confuse everything until the kit is completed.

In regards to running 10 psi on other Vortech kits. I don't know why Vortech chooses to run 10 psi. I assume it's because they feel that the engines can handle it pretty safely. Perhaps it's because the compression ratio on the Mustang GT is only 9.8:1 which is significantly lower than the compression ratio of the VQ37 at 11:1

I agree with you completely. The percentage gain between the base test and the final test after installation of a supercharger should be the same as the manufacturer's after taking everything into consideration. To say that the final rear wheel number should be at least identical I can't really agree with because there are a lot of things that need to be considered such as elevation, air temperature, transmission, wheels...But yes, the percentage of horsepower gain between baselines should be relatively similar.

Buddy Revell

Is it cool if you post the psi on the G37 forums, since quite a few of the guys over there run on 20s and have auto trannies? Could be useful info for those guys.

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'08 IP G37S/GTM Supercharger/20" DPE SP-5 Wheels/ARK GRIP Exhaust

Phimosis

I know it has been suggested by others on this forum before, but Stormcrow, can you please stop being offensive with every post, or just don't post at all?

Thanks,

-Phim

G35s-Q8

I was reading from page 1 and up until here, Both kits looks great and promising, but i had bad experience with stillen s/c on my old 350z, so i swapped into TT kit and i sold the Z after a while.
This stillen s/c kit looks pretty nice,their intake manifold reminds me of Edelbrock e-force s/c on my friends Mustange ,and tbh i think stillen is making a very reliable kit, but i wonder about their S/C unit sound and oiling system, vortech units tend to get loud.
I'm a GTM fanboy since i had their TT installed, i think both kits would be great, but right now we need customers reviews on both kits in terms of price, installation, quality, power, and so on, don't judge a book by it's cover.

stormcrow

You find my questioning of Stillen offensive?? Really? Oh, wait. Your signature. Nevermind. Mystery solved.

Red370

you're getting dangerously close to getting banned dude, seriously just give it up.

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2011 Mustang 5.0 | 3.55's | Lethal Performance off road H-Pipe | Magnaflow Muffler Delete | JLT CAI/Bama tuned 417whp/ 404 ft/lbs

stormcrow

Oh, really? If I am banned, I will know why.

None of my posts have been offensive, immature, libelous or slanderous. They are filled with truth, my experience and legitimate questions. I have violated ZERO TOUs - and do not plan to.

rcm2525

This all may be so. But I for one am just sick of hearing you pontificate.

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"To live outside the law you must be honest" - B.D.

Phimosis

Again, you're doing nothing constructive here and you are only trying to be offenseive. It's not warranted and hurts the370.com community.

Claiming that Stillen is using illegal business practices in the marketing of their product is not "questioning them." Your comments are unwarranted and what you're claiming is probably not provable, even if it were true.

After reading your posts throughout this thread, you'll probably want to debate me on my use of the word "illegal", but "illegitimate" is referring to parentage of offspring. To use "Illegitimate" in the business context, the synonym which most closely fits is "illegal." Cross reference a thesaurus if you don't believe me. The interpretation by attorneys in a slander suit would also use the same logic.

About your most recent comment about my signature "solving your mystery;" all you are trying to do is deflect the criticism back at someone else to avoid scrutiny. I could answer with reasons like, they were first to market or they offered a group buy, etc.. But, the truth still is that you are being rude to too many of the people on this forum for no valid reason. I really am surprised the administrators have allowed this behaviour and not deleted your posts. If every member took the same attitude that you do towards Kyle and the other members of the Stillen team, or even Sam at GTM for that matter, they would simply stop posting to this forum. Think about it just for a moment; if Kyle was getting verbally attacked and badgered by EVERY person, they wouldn't post here. They would find another forum or advertising outlet that was friendly to them and release their information there first. And honestly, there are other 370z forums out there that haven't done as well and would love to get exclusive updates on aftermarket projects. If we chase off people like Stillen, GTM and Altered Atmosphere and they start posting their breaking news to other sites and refuse to post here, we end up killing the site. So please, use your sarcasm for humor, not to insult. And if you are skeptical of someone's data, post a rhetorical question, like "why would they do that?" rather than a direct confrontation.

Thanks,

-Phim

Kyle@STILLEN

We have only scratched the surface of what we have planned for the 370Z!

The orange GT R is currently set up for Targa road rallies. We wanted to take the car on the track at Fontana but it had literally just come home about two days before the meet and was still set up in rally trim so it wouldn't have been very good. The shocks were too soft, the sway bar was too soft, the ride height was too tall...It would have been really slow.

The GT R racing in the Challenge series this year is going to be equipped with our coil overs, sway bars, and brake lines. We actually don't have anything to do with that car other than a parts supplier.

Steve really wants to continue with the Targa rallies which means the car will be traveling to New Zealand and Australia and a few other countries/events. As much as I'd like to make the GT R our Time Attack car, Steve wants to continue using it in the rallies.

If we're able to put together a Time Attack program we will be using a 370Z. We will probably start in the lower classes, then move to modified then eventually the hope would be to go to Unlimited. It really depends on development, money, and the driver.