Can it handle it??

esfourteen

the bias on the forums is so strong, it's sad.

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dal1307

I agree, especially bad when it is coming from people who have no personal experience with either option.

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2008 G37s 5AT, Stillen SC, Stillen CBE, Stillen tranny cooler, DBA 5000 front/4000 rear, Stillen sways, Tein SS-P coilovers, SPC front & rear control arms, Goodridge lines

ZInferno0248

I have a 2010 nismo (7000 miles) with a GTM stage 1 SC. I had it installed recently and really like the kit. My only issue was that it took about two months for GTM to send it out, after I paid for it. (I haven't posted the info in the finished build section yet, but will as soon as I have time). I got 390.3 WHP with 323.4 FtLb of torque at 7000 rpm on a Dyno Dynamics dyno (It was 90 degrees that day). I also installed a oil cooler, resonated test pipes, and got a custom tune.
My car was totally transformed by these mods. It is a blast to drive. The SC kit fits the car so well, it almost looks stock. I believe your car gets cut up a lot more with the Stillen kit. As far as reliability, time will tell. My advice would be to think carefully about which kit you pick, do your research, find a good tuning shop, and go for it. A large increase in power will always = less longevity, but I think having a car that stands out from the rest is worth it.

Osiris

GTM FTW. and yes, i am bias.

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SPOHN

What experience do you have to have to recognize junk. It was junk in the 350Z era. I've been around more than enough to know. Seen it first hand.

I have no personal experience eating crap but I know to stay away from it.

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esfourteen

The term "junk" is being used in this thread, please can someone elaborate on what exactly is junk about the stillen kit?

The tune that comes with it is obviously not the best tune you can get, they are going after that CARB approval after all so its certainly not as aggressive. People run it never the less and their cars work perfectly fine. Some people have experienced drivability issues (after the car is warm for example), but the same is true for GTM kits as well, its all about the tune there. I personally wouldn't run any unit without a dyno tune but that comes from bad experiences with canned tunes.

The vortech V3 is a great blower and multiple power levels are attainable by changing pullies/impeller. In stock form it makes similar power to a stage 1 gtm, when modified it has made numbers closer to the new stage 2 gtm. The limit to power with this blower is what the engine and IC setup can handle, not the unit itself. Is 400-500hp "junk"?

The intercooler is a very efficient air-water setup built into the intake manifold, this is probably the only "weak" point if you wanted to run big power with this car (more power then the stock block can handle). The compact design makes it incredibly easy to install and no FMIC blocking air flow to oil coolers/radiator. Another benefit is the lack of heat soak when stopped as the water is constantly being pumped through the heat exchanger/IC.

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Lug

wow

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98intrigue

I agree. I don't have anything bad to say about GTM, but I don't like when people hate on something they don't have first hand experience with. Stillen has been around for a long time and have a relationship with Nissan/Infiniti with dealers installing their kits...so i wouldn't say their kits are junk. Are there pros/cons of each kit? Yes...but I wouldn't say one or the other is junk.

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Osiris

roughly $7-8k for 282 ft lb torque. Price to power ratio sucks. Junk is not an accurate term, maybe lackluster would be better. The car runs, it is stable, it will pull good numbers on the dyno....but due to the low torque, the low end power is only just slightly more than a stock 370. The GTM kit, however, seems to have better torque numbers from what i read.

I have run my car down 1/4 mile against stock 370's and i only beat them by .3 seconds. Granted, if i were using slicks, i may get a full second faster.

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esfourteen

I really hate getting sucked into these stupid arguments, but if you are going to quote facts, lets get them right. The turn key is $6300. lower torque numbers compared to twin turbo, sure, all SC kits make less torque. if you're referring to RCZ's dyno of 390hp/290tq, that was on a very low reading mustang, which he put down 256hp and a bit over 200tq stock. on a dynojet he put down 445hp/335tq in near 100 deg florida heat with the same setup.

comparing different cars/dynos is apples to oranges, my point is the kit obviously makes good power, and is capable of even more (squeeze did 470/360 before maxing out his MAF's).

When I was considering kits, I was on the fence about what setup to go with, i chose the stillen because I got a great deal on it, but I would be equally as happy with a GTM kit. I am not some fanboi, im just being pragmatic here.


what most people don't know about that setup is that one of the injectors that was in use on the stillen kit was bad, later confirmed by deatchwerks that it failed the flow test.

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Osiris

first of all $7-8k is what I spent for the kit and installation. And no, i'm not referring to RCZ's numbers...i'm referring to mine which were 390whp/282tq. And FYI, was the same dyno that RCZ had his tuned. So i say from experience with the Stillen kit, that the torque IS a negative factor with the kit. Even on the dynojet it's only getting 335 lb torque. This kit doesn't get any power unless you are in the high rpm range unlike what i've heard from others that have the gtm where the power comes on in the low end.

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esfourteen

ok, $8k installed is different, I thought you were referring to the cost of the kit. your numbers were close to RCZ's then, did you dyno your car stock on that dyno? As for 335tq being low on a dyno jet, compared to what? From what I've seen the GTM stage 1 SC put down similar torque (just look at the dynos GTM provides, +90 tq over stock), and looking at graphs it comes on in the same manner (linear of course). The only time ive seen the SC kits making more torque was with stock cats, which apparently won't last long due to the power/pressure? Looking at the facts I don't see how these kits are not comparable.

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Osiris

unfortunately i don't have a stock dyno. I can only base my statements by the experience i've had with the kit on my car. As far as the torque goes, maybe 282tq (mustang dyno) is all that can be expected from this kit. Either way, the performance i am seeing now was not worth what i spent IMO. Barely pulling away from stock 370's down the 1/4 mile and on some, um, "spirited" highway pulls with other stock 370's was not worth that 8k. And i have videos that show me vs stock z's. But at the end of the day, if i could go back and do it over again, i'd do it differently.

If i had the money i probably would.

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toner123

Ok I sat back long enough on this. For the last few days I have been rereading that post and yet on this forum I can't find anything about the situation. So I say this, can we get the full story on this situation? I do not know why this would be kept silant because people have been beating the **** out of stillen over this kit. You can't blame them if a injector was ****** up since they didn't manufactor it. Lets go please, I ask the owner to air this story out for the community since it is not fair for stillen to take the blame for something they have not control over.

esfourteen

It's not my place to say, I shouldn't have brought it up but I don't like that thread being used as ammo when their were in fact issues with his injectors. All I can tell you is that Deatchwerks confirmed that one of the injectors from weiboys kit failed the flow test. That is certainly enough to cause knock/det and much worse. Injectors can suddenly fail, its unfortunate but it happens. I just wanted people to keep that in mind when looking at that thread.

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