Supercharger kit, JDM spec 370Z
 

Hello,
hello all, i'm new on this forum, i'll appreciate some guidance on this, i contacted Stillen for it's s/c kit, but they never confirmed neither if it works for our car or not (JDM, non-US spec), nor they told me if their kit works flawlessly (seems that it doesn't :rolleyes: ) and after looking some topics referring to forced induction in this forum it seems that Stillen isn't the better alternative anyways, my question is, anybody knows who can sell a complete supercharger kit that will work for a non-US 370Z, and with an automatic transmission?

Thanks

I would send a PM to Sam@GTM or give GTM a call directly and talk to them.
I am not 100% sure if it will work or not, but Sam might have some ideas.

^That's the best advice you'll get.

:iagree:

I'll go out on a limb and say the GTM kit will fit w/ the exception of the power steering hose. This will most likely need to be different on the RHD model. I've never worked on one personally so i'm not positive what the power steering looks like. I'm sure they can come up with a solution for that though if needed.

lot of people here in Middle East are using the GTM and Stillen kits on non US spec cars without any issue.

Thanks for the answers, the car is JDM spec'd because it comes from Japan directly, it's left hand drive just like in the U.S.
Anybody knows where the ECU is located in this car so i can check the manufacturers code?

I believe you can go by VIN number I believe to reference the ECU date.

are they using stillens tunes?

X2

That's interesting

I would guess no as they probably are not able to get a warranty from Stillen nor do they have to worry about CARB which are the two main reasons to use the Stillen tune.

:eek:

if you aren't going to be running a stillen tune, get the stillen kit.

^^ lol or get the kit that works well and from a company that actually gives customers support. Hell Stillen is not even selling the kit right now due to the fact that it sucks. Get the GTM kit and there will be no disapointment.

Sorry for not clearing the whole thing man...ma bad

We have a local G, Z and GTR club and lots of people have bought GTM TT, Greedy's TT, APS etc kits and some have Stillen SCs as well but I was saying as a general rule for all cars (G35, G37 and 350Z) as there are US specs and GCC(gulf) specs. My point was no one find any issue with the tune as everyone is using different options and majority of options work regardless of which specs are those car US and JDM.

For the current SC kits, I still haven't seen anyone either with GTM or Stillen SC here, as frankly havent seen any 370z which is modded so far, but there are few G37 are there with GTM TT kits.

For me I am planning for GTM SC kit and if that goes through will update you

The Tuning part of the whole process is relatively straight forward, We just supplied a kit to Singapore and were able to give a him a tune no problem, We did not have the rom for the his jdm ecu from the get go but it was really straight forward getting over that hurdle.

Sam

^^^ you make it sound so easy Stillen makes it sond so hard.

I know you are a brand fan here, but I mean you guys are acting like Stillen is gone. They replied recently with good news for a customer that his car is running and running good. We need to start keeping it cool on comments about the vendor. As is with everything, forums are a small percentage of sales, and frankly no one knows how many kits they have sold that are running just fine.

He had a custom tune done to his car. We all know everyone except stillen can tune their kit. Uprev custom tuned his car stillen had nothing to do with it. Stillen isnt even selling their supercharger kit anymore

cool

just theirs

Studying deeper on this subject and for a not so big difference in price i think we'll opt for the turn key twin turbo kit, what do you guys think of it, is a good choice?

Depends on your goals, but the twin turbo kit has a LOT more growth potential for power output. The supercharger puts out good usable power that would be best suited to a low key street car or track car that is usually going to be on a lower speed road course or autocross situation. I don't think either is a bad choice but the twins would be my personal choice.

So in order for this to happen does the kit need to be the tuner version or the turnkey version?

For Sam to provide you with a tune it must be the turn key kit. The turn key kit is the same thing as the tuner one except the turnkey comes with the fuel pump, larger injectors, and a tune from GTM aka Sam.

Now to the OP, with either kit GTM SC or TT you can't go wrong. Like others said you have more growth protential with the TT kit. Now keep in mind yes the price for the SC is a little less then the TT kit but the cost of installation is higher for the TT kit. Something for you to factor in so there are no suprises. Also with the TT kit you have to factor in some supporting mods such as possibly high flow cats or test pipes, a better exhaust system, and a boost controller. Now some others will till you that this stuff is not required but I highly recomend it and I treated it as a requirement. I did not mention the oil cooler because I think that is a requirement fr both kits. Also to add the installation time on the SC kit is a lot less then the installation time on the TT kit. Look at your options and set a goal. Don't just look at today but think of the future as to what you would like to do with the car. I say if you can be contampt and happy with staying around 450 hp then go with the SC. But if you think in a few years or somewhere else down the line you will want more then go with the TT. You will find that both will do the job well but which kit you get rests on your goals and what you desire in hp/tq. I hope this helps
Frank

Thanks for the explanation toner123.

Now why wouldn't the tuner kit require a fuel pump and larger injectors?

They do require a larger fuel pump and high flow injectors, the tuner kit gives you the option to source them yourself if you want more options outside of the ones GTM supplies.

Forgive me if this a Noob question:

Is it stupid to purchase the tuner kit and GTM's fuel pump and injectors?

My thinking is that me being in Australia, an Australian spec 370Z might potentially be more difficult for GTM to tune. Maybe I'm wrong about this. So I thought that the tuner kit would provide the flexibility that may be required, yet I'm happy to go with GTM's standard kit and tune if possible.

I am not under standing your question fully. The tuner comes with out fuel pump and injectors. I think you are meaning the turn key kit. I don't know the differance between your car and mine when it comes to the ECU tunning, but I say this with confidenance, and that is I think sam can tune anything. Although I think that would be a better question for you to ask him directly. Don't be shy to call the guy he is very aproachable and he will treat every concern you have as if it was his personal one. That is the best advice I can think of. Make a list of questions and concerns and give Sam a call at GTM. Phone number is on there web page gtmotorsports.com under the contact us tab
Frank

The tuning part is the same for all cars no matter which country it's from. If Sam already as a ROM for your ECU part number then he can send you the map and you upload it straight away. Tuning done!

However if Sam does not have your ECU number listed, then you simply need to send him the ECU data and he'll crack the ECU and make a new ROM file for you. This basically allows you to modify and upload maps onto the ECU by unlocking it. This is done even on US ECU's. It's only a matter of whether your specific ECU part number has already been cracked or not. Once it's cracked, all you do is upload the maps that come with it and tuning is done.

The maps and tuning software is the same for all ECU's.

Unless you have the required fuel injectors, fuel pump and tuning software, then the turnkey kit is obviously the better choice in your situation.

Alright well there you go, there is the answer you were looking for. Sorry I was unable to answer that question but I didn't want to ramp on about something I knew nothing about and give false info on the subject.
Frank

Thanks for the info Q8y_drifter, and toner123 no need to apologise.

So lastly, can the turn-key kit be tuned by a third party tuner outside of GTM?

Only if they are an Uprev tuner. I suggest you use the GTM base maps and tweak them if need be by a tuner.

Now the only issue with that is that the MAPS that SAM sends are locked. I know this from personal experience. Now maybe if you talked to Sam he can send the person you would like to tune the car a open map with basic parameters set that way you don't have to pay for a full tune. I don't know if he will do that but never know till you ask. Also I wouldn't know why you would want to do that. Sam has the tunning of these cars down to a science and the turn key kit is truly a great value as to where a full custom tune can cost about 1G USD.
Frank

I don't know how much these cost. i didn't even know Sam locked the maps. My tuner said he can tune my car for about $200, assuming Sam's maps required a little tweaking.