GTM and Stillen SC Install Facts and Results Thread
 

I hate to stir this up again but I was thinking about this today and was wondering what the answer would be.

How many people who have the GTM Supercharger kit got it installed at GTM and how many got it installed at some other shop local to them and used the off the shelf tune from GTM, unmodified? How many people got it installed by a local shop and got either a full custom tune or tweaks to the off the shelf tune? For all, what were the results and were there any problems?

How many people who have the Stillen Supercharger kit got it installed at Stillen and how many got it installed at a local shop and used the off the shelf tune from Stillen, unmodified? How many people got it installed by a local shop and got either a full custom tune for tewaks to the off the shelf tune? For all, what were the results and were there any problems?

I will start. As most of you know I got my Stillen kit installed at a local shop in the Denver area and got a full custom tune. Living in CO I had no desire to stick to the ultra conservative parameters required to meet CARB certification. Also, I live at approximately 5400 ft asl and wanted a tune that accounted for that huge altitude difference from sea level. I also opted to use the 9 PSI pulley wihich at our altitude, as measured by my installer yielded 7.2 PSI. My baseline numbers were 250 HP and 227 TQ. My final numbers on the same dyno in the same gear were 387 HP and 311 TQ (increase of 137 HP and 84 TQ at 7.2 PSI boost). I have had no problems to date with the kit.

I am not trying to stir up the pot or offend anyone but simply asking for everyone on both sides to post the facts and reaults as I am curious.

Dave

GTM self install supercharger. Took 2 full days with 2 guys that have never messed with Forced induction before. (not bad eh?)
Base 280hp/240tq
http://i212.photobucket.com/albums/c...ll4runsrpm.jpg

After Supercharger installed
428.5/341.2tq
http://i212.photobucket.com/albums/c...ll4Runsrpm.jpg

I had the flutter issue at first but sam resolved it when he said he would and sent me parts at his cost to fix it. I had heat soak issue but that got resolved. I have a cold start issue and I am the only car experiencing this (Only when temps are at 20 degrees or below). I have to barely give a little gas to get it going. Sam is helping me out trying to pinpoint what it could be. But it does not affect the way it drives.
I am a 6mt and the power is nuts. Idle is fine. You CAN hear the intakes a little when at idle but not from inside the car.

Where you at Dreamer??

Sorry dreamer, I forgot about that thread! I mainly started this thread so the GTM vs. Stillen debate could be moved out of the Stillen announcment thread and to give everyone who has either kit a chance to post the good, the bad and the ugly.

Stillen SC, shop installed, custom tuned. 280whp stock to 455whp after sc. 8.2psi 100deg weather. I am on the Stillen 9psi pulley.

No problems to report as of yet. Had the car stall twice when coming to a full stop from a 5th gear cruise. Not sure if thats SC fuel related or if it counts as a problem.

Made 444whp about 2 months ago, then mother nature took a **** on the NY Metro area and I have not driven my car for 1.5 months. I also had the flutter issue which only happen to the first few kits and was resolved by Sam about 6 weeks ago.

I have delayed my whole review because of this crappy weather but I'm hoping to put it behind me during the next week! I should be much more active on here again.

Thanks guys.

Thats nice power man what kind of dyno?

DynoJet. Same Dyno I made 272whp on 4x in a row last year.

Subscribed for peoples experiences.

definitely in for the info

After recently removing a Stillen kit for a gentleman, i will say going back to stock is a bitch. There is so many parts that are hacked to fit that kit its a nightmare if you ever want to remove it. I know thats not exactly the info you are looking for in this thread, but i know it should be a consideration when modifying your vehicle. I was going to do a full post on it but need to put my hands on the Stillen installation instructions again.

If you ship it to him it would get there faster. Just pay the shipping costs so he can look at yours and start getting the new parts ready for mine.
" real canadian men drive Stage 2 GTM's SC's "
and house wifes drive stage 1's.

Ok we get it you don't like stillen. I have heard all 3 stories and understand their situation. I have pm'd some owners directly too. I want to get other peoples perpectives on both systems. So let's keep to the thread topic please if we can please. Some of us actually use this forum to make educated decisions. Maybe that is where I am going wrong. Hahah. Kidding.

Shumby do you have a kit installed? What has been your experience?

Liquid, can you share where you are?
All who have posted their info thanks for sharing your experience. All of this is good to know.

Leaning toward GTM, but I am still collecting info to help make up my mind.

Well. I've been in both the stillen and the GTM. A dealer here in chicago has a g37 with a stillen in it. I'm not going to lie, it was nice. I was on the fence toward getting a stillen but in the end decided on the GTM. When i test drove the stillen kit it was in an automatic COUPE. It really picked up and went. What i was reading is the possible warranty with the carb kit. Then i read more and talked to stillen more and found out that the warranty is through them (not a bad thing I thought at the time) but also the carb kit will be limited in hp as well.
I wanted a clean look as well. I personally got up in around the stillen supercharger. Listened to it and looked at the install. The new intake manifold was ok. It didnt make my heart sing that is for sure. Looking at the GTM, what I like about it right away was the clean stock look it presents. The stillen is diffentaly more flashy in the engine bay.

Now my car is a VERT manual. WHen driving it, I can definately feel a difference. Lower end felt a lot better. I really felt it had more power overall. The auto has the gearing to make it feel faster and is actually faster, but not now.

Josh from stillen was very nice and answered everyone of my questions. So did Sam.

My opinion is Thank GOD I went with GTM now that I see the issues pop up. Now there are people who have installed both and they are working great on CUSTOM tunes. Did my car have issues at first. Yep. Did sam fix them right away. You betcha.

im sorry, but real men have twin turbos. :shakes head:

:tup:

Yes I have the GTM stage one kit. There are actually 2 threads on my car on this site so I will not gointo details. 390HP 350TQ 6.5 psi pully. This was my choise and i still ripped my trans out of the car. lost the upper gears. This is do to my driving style and has nothign to do with the GTM kit. I was just to hard on the upper gears. ( well as z elim or Zat would say my wife was lol.) Had the hot start issue that the first 3-4 that Sam did had. Fix with a simple reflash within one day of talking to Sam. My trans is on its way down to Sam now to get some work done. This is the only issue I have with Sam it is taking him forever to get the trans to him. After the trans is upgraded I will be putting the 8 PSI pully on and getting the new intake to run my LTH's hoping at that [point to see 430-440hp at my wheels. ( might do the dyno on a day when it is -50C and scew the numbers. lol)

I'm about 6 hours into the install.. DIY. Replaced the fuel pump one evening and then started the tear down last night.. GTM's instructions are pretty spot on. I've never gotten into a project this involved, but feel real confident that the rest of the install should go smoothly (famous last words I know)

Keep us posted. I'm in the West Loop and would love to lend a hand and/or check it out once you're finished. I'm curious how tough you'll think it was once you're done.

not many that do really can... its all about having properly distorted priorities! i didnt really mean what i said anyway, i was just making a smart *** comment. i should phrase it more accurately; married men have SCs, bachelors have TT.

:rofl2:
Funny part about that is I am single with the SC and JB-370z is married with the TT. In Houston we do things differently though. :p

Lol good one I fall right under that category right now with a supercharger. I will be adding a Stillen review to this thread over the next month.

Please stop posting useless crap in this thread. Read the thread title: SC Install Facts and Results Thread.

Post your install fact, add dyno pics and post your results etc, that's it. There are plenty of discussion threads. If you want to know more detailed info about a members setup, pm the person. That's why we have a "private message" system available to ALL MEMBERS!!!

I'm married also with a 18month old girl... and I have a TT . Thats the true test.. If you can get a 12k TT kit while being married with children it shows that YOU wear the pants!

haha. Married, a 2 year old, 1 year old and one on the way and have a s/c. WIll this work?

married with 2 boys 12 and 9 yrs old. went through 2 superchargers. will this work also lol.

Lol. You guys are hilarious. My justification would be, "I could have bought a more expensive car like a GTR, but I decided to save money and buy something cheaper and work on that."

Even with the amount of money the average person puts into a car to either turbo or supercharge, it will still not touch the GTR's premium cost. Plus, a lot of people like sticking with rear wheel drive - it has a more sports car enthusiast feel. I'm still upset the GTR is an automatic and doesn't offer a manual version.

Plus I wanted the luxury of the G as well over the GTR and the GTR's top does not fold down. Try going through twisties with the top down. Its awesome.

To Wei. Definitely your are for going through 2 s/c

I haven't even gotten close to half the price of a used GT-R yet. Besides, getting the Modding bug with a GT-R could get really expensive LOL!.

gtr won't even fit in My garage LOL

The GTR would be my next car if it weren't for the lack of a proper transmission.

Unless based purely on personal preference, DCT > manual. The GTR DCT shift time is like 200ms.

sooo stillen or gtm supercharger?still havent really heard anything on this thread that pushes me either way(gtm or stillen),not many comments from anyone whos has installed a stillen charger at home,i plan to do it myself(mechanic) at home but really need to do my homework here cuz nobody seems to have installed a stillen at home,any help is much appreciated..thanks....

oh and if ur interested in a top speed family car buy toyota,just push the gas real hard and ur gone..sad

I have had both installed on my car. stillen was a total failure. I would say gtm is the way to go. There is someone doing a gtm diy right now search to forums

why exactly did you return your stillen sharger?

I won't comment on the end outcome because i don't have either kit on my personal vehicle so i can't tell you the day to day consequences (good or bad) of either kit, but i have worked on vehicles with both kits, so i will give you my impression.

The best way i can explain this is that the Stillen kit reminds me of a cheesy bolt on Honda Turbo "kit" You just kinda slap it on with some self tapping screws (course thread into composite plastic) and by molesting some factory brackets with a grinder. Not quite a complete solution in my eyes, it modifies a LOT of the car by cutting off tabs, bending coolant tubes (in the throttle body), and similar things to make the kit fit the car. You also have to extend several wires for the MAF sensors and one throttle body. Not a huge deal if you are good with wiring, but i don't like the fact that Stillen did not keep shielded wiring for the throttle body that has to be extended. (factory wiring is shielded all the way up to about an inch before the connector.)

The GTM kit is more in depth and would be more like converting a 300ZX NA --> TT with all factory parts. There is still a small level of factory components modified, but for the most part if the factory part didn't fit 100% perfect with the charger then they provide you with a new piece to take the place of it. GTM Does require you to extend 4 wires as well but its for the oil pressure gauge/switch, and its about 5" or so extension. Not quite as critical of a place as the MAFs and Throttle body.


In my opinion the best way to put it is Stillen made a kit that sort of fits the car, and expects you to cut your car up to fit their supercharger kit. GTM made more of a conversion that changes your car from NA to Supercharger trim, much like i would expect to purchase directly from the manufacturer if two engine options were offered.

I would recommend contacting both companies for copies of the installation manual, and take a look through them. This will give you a far better idea of what you are about to do to your car with either kit.

^ Some very good insight... thanks for the honesty :tup:

Here are links to a GTM DIY and a Stillen DIY thread.

http://www.the370z.com/diy-section-d...ercharger.html

http://www.the370z.com/forced-induct...diy-style.html