Boosted 2013 370z Nismo
 

Sooo...

After having my 370z since June, I decided to go ahead with the with Super Charger build from Stillen! Thou having some tuning problems that luckily Dave and Dean are working out with me its been a blast! Getting my brakes upgraded next, then going on to the exhaust. Highly considering the old ARK exhaust I used to use on my Hyundai Genesis Coupe 3.8 Track (Had the ARK Headers, Cat back, etc, grip v2) With that being said I know Stillen has a kit too.. kinda torn at the moment, I don't want the Rasp, or drone.. we have enough of that currently in our Nismo's.. =\


On a side note, has anyone else here installed and got the Super Charger kit installed? Noticing some small issues with low throttle driving, from 10-40mph the car likes to jerk and surge? (Kinda like its hesitating, when I'm trying to go consistent speeds, 25mph, 30mph, etc) once I hit 55 the problem goes away 100%.

Over all the kit is amazing, and the gains are almost exactly what I was looking for :-D

p.s.
Thank you for Lamb Nissan here in Prescott, AZ for doing the install and keeping it looking clean :-)

Update: the guys from Stillen have been more then helpful with fine tuning my car via the UpRev Software, making huge progress!!

Just Debating now with the Exhaust Kits.. anyone have any input on the ARK Grip vs the Stillen Cat back Systems?

On the tuning side of things, make sure you are finishing the tune up on a dyno. Remote tunes are good to get you around for a bit with boost, but you really need to have a quality tuner spend some time on a dyno with the car to iron out all details.

On the exhaust side of things, skip the stillen. I have heard the ARK in person and it is a good system. Rasp should be minimal with any exhaust if you are keeping the stock cats, if you plan to change those to HFC or TP then you open the system up for more rasp or drone.

I have a Stillen Supercharger on my Z and I agree with theDreamer, find a good tuner with a dyno. My car didn't come alive until the dyno and it runs perfect now.

Congrats on the Stillen SC'r... I have a little over 30K mi. with the SCr' kit on mine (it was my DD for 3 years - and now I'm about to get serious with it)

Here are a few heads up for you ...

1) Keep an eye on the underside of the hood for evidence of Belt Spray ... If you find it get the car in to the shop pronto.
You may have a loose Idler pulley or ??? something else
The Stillen kit does have a very small diameter Idler Pulley that failed on me.

2) Tolerances are tight under the hood ... the Wiring Harness' need to be bullet proofed so no flex or movement ... especially near the belts.

3) You will in time need to re-synchronize the Throttle Bodies...important.
With them out of sync the car can be wildly intermittent and erratic - this may explain some of your initial throttle/power problems.

4) Say good bye to your OEM clutch - it won't handle the added power, especially if you like to accelerate hard.
OS Giken makes a nice (dampened) twin disc clutch that grabs good and also feels good. I've gone through 2 ACT single disc clutches (purchased thru Stillen)...

5) You will need an LSD (either OEM or aftermarket if your Z isn't so equipped) to keep power to both rear wheels under hard acceleration.

6) Addressing Traction Issues will be your next happy project !

7) The SC'r is actually good on gas - until you plant your foot properly that is!

Exhaust ? Sound is a matter of preference ... inside the car sounds different than outside of the car... video clips on YouTube? - ehhhhh.

I have the HKS Ti (H) with PPI long tube headers (cat delete) ... acceptably tame until about 3000 rpm...good for driving around in front of the PO-Lice and neighbors but then starts to make itself known when you want it too ... more important though is that it keeps the balance of back pressure needed.

I would have preferred a deeper rumbling sound aka 8 cyl, but: the 3.7 exhaust is controlled by VVEL technology and is Japanese efficient.
It has a certain inherent sound ... smooth but boring - it still is a high revving 6 cyl.

Please let me know what you dyno at ...

Enjoy the Power

Bob

Z&I I don't see you on the list so what did you dyno at?

Beat me to it, was just about to ask for details so I could update the thread!
-Year
-Kit used
-Current HP/Torque
-Current PSI
-Miles since kit installed
-Other upgrades (clutch/flywheel/engine/etc.), also include miles when these upgrades were completed with done after original FI install

Z&I,

I appreciate your feedback and insight, and everyone else as well.

Currently I'm working with Dave at Stillen trying to get it figured out, the I do know the Nissan Shop (Lamb Nissan) already had to reconfigure the throttle bodies, I'm wondering if they need to redo it again thou.. the "major" issue is at 2-3k RPM's.. after that I can feel alittle tugging with this last tune I received.. but it just seems like every tune I still have that problem. I did have Stillen replace the idler already due to a really bad noise it was making, so that was resolved within 2 business days (Thank you guys at Stillen for that!!)

I'm really, heavily considering the ARK Grip exhaust. The DTS doesn't seem that much better, and I've experienced the ARK Grip on my last car, and the dyno and gains were great and the tone both inside and out were fantastic. I just need to dynomat the damn trunk to get rid of the other road noise lol.. Thank you guys for the feedback. J&I if you have any more insight on how to help fix my low speed\consistent throttle issue lemme know man =)

- Tim

stillen sucks. why do you need to upgrade your brakes? :confused:

My car did the same thing at low speeds with the Stillen tune because they had it way rich to be safe since they can't dyno it. When I gave up and got it tuned on a dyno we did a couple pulls to see where it was and it was in the 310s HP at best. After tuning it's at 406 HP 302 TQ and all the goofy feel to the throttle/motor is gone. You spent a lot of money for HP that you are most likely not going to get letting Stillen do the tuning. My car on the Stillen tune vs the dyno are day and night different!

So what kind of problems did you have with Stillen?

Uhh according to you their tune sucks for starters.

I agree about the tune, but I don't think anyone can really tune a car from across the country.I love the kit now that it has a good tune on it! I just don't understand why people here feel the need to be negative on someones post about their car. Maybe my comments about the tune came off negative but I was trying to help the OP resolve his issues with his car. What help is "Stillen sucks" when he already has the kit on his car?

absolutely horrendous customer support. their super charger kit is pretty lousy too

I will give you the first one but totally disagree on the second. After the headache of the support it did exactly what I wanted, it took it to 300 tq(what the 7AT is rated for) and made it a whole lot faster than it was NA. I'm just saying the guy spent $7K and was asking for help and the comment was no help. If it was just to make you feel better then so be it and I hope you enjoyed it.

go look at everyone that has had problems with their kit and you'll also see that the components are lousy too. i'm trying to help, help him to not make another mistake.

im just gonna say this

the stillen kit doesnt suck, its a great kit if you plan on never modifying your car after that, with the stillen kit there is no room to grow and increase power like the GTM kit, and most of the people who have problems with the stillen kit have it modified and pushing way more power than it can handle, its a 50 state legal supercharger that does what it says

heck back when i was looking into the stillen supercharger, all the people i talked to(RCZ and a couple G37 owners i saw outside stillen when i went for a test ride with Kyle@stillen) loved the kit and didnt have it modified outside of its limits(RCZ being the only guy who modified the kit with a 9lb pulley)

and yes i have told you i dont like the stillen kit, but its not the same reasons why you dont like them, i dont like it because there is no room to grow without major modifications to the kit(even than its really risky), and it doesnt have that clean look the GTM kit has

Thanks for the post !!!

You are right - Stillen doesn't grow - but I chose it over the GTM (at the time) because GTM didn't offer a complete package and therefore could become more complicated.
It was more convenient and at the time I wasn't thinking of racing it.

Am interested in that 9lb pulley ... who & where? ... I know Stillen positively doesn't offer one.
Need to know if the SC'r itself could handle the extra rpm.

Have been reading that some of the TT guys are getting up to 11lbs (would be nice) but don't know if they have done the internals.

To consolidate some more info requests :

The car is a 2009 ... Base Sport...and was my daily driver for 3 years.
Installed the Stillen SC'r early in 2011...(30k miles since then) went with the Stillen tune at first.
It was in the shop for nearly 3 weeks with other work being done.

The dyno wasn't working so I took it home with the proviso to drive it a few weeks and bring it back for checking and tweaking and dyno at that time...but the dyno was still broke.

The Stillen tune was conservative so went to UpRev ... it made a difference ...
The next up mod was the PPI long tube headers / cat delete.

They adjusted the tune and once again picked up the car without the dyno being done...was told tho' that it was in the 500-525 hp range ... an educated guess.

The car was running good and strong so I never pushed the issue ... (don't recommend doing a tune without the dyno) but these guys are good and have done a ton of SC'r installs without any issues or problems.
It was still my daily driver and I wasn't tracking it or pushing it past recommended limits ...
Wanted to avoid the hassle of arranging for a rental car and wasn't too worried about the actual dyno results.

This past year has been a different story - have been taking it to the track and am once again bitten by the 'go faster : give me more power' bug.
Ran a 12.4 @ 116 with a disappointing 2.002 60' time as is...need to control the launch a little better.

It's in the shop now for a Line Lock installation and VDC/ABLS disable...getting it ready for next season.
Also found out that the UpRev tune has a provision for disabling the throttle/brake limiter (prevents the car from overrevving at no to slow speeds - a necessary requirement for drag racing)
There is a lot I've been learning about the car especially this past year.

Will get that Dyno Done fer sure this time now that it is going back to the track in the spring.

Hope this contributes to the thread.

Bob

OK ... here goes

Year : 2009 Base/Sport with Nismo Aero kit - purchased used with 8k miles.

Kit : Stillen Kit - Stillen Tune (later upgraded to UpRev) - installed early 2011

Miles since Installation : 30,000

Other Upgrades :

PPI long tube headers / cat delete
Quaife LSD
OSG twin disc clutch / aluminum pressure plate half / steel flywheel
UpRev Tune
GTM Race Logic Traction Control


Upgrades currently in progress : car is in the shop

Line Lock
Disable VDC/ABLS

*Will post current HP : Torque : Boost when it gets back from the shop

Bob

Stillen does have them, When I was frustrated with them Kyle Millen called me and in our conversation he asked if I wanted one but I stayed with the 8.

I'm a little confused by this statement. GTM offers a turn-key version of its supercharger kit that has everything you need to get up and running. The tuner version is the one that leaves out the fuel and ecu upgrades (so that you can choose whichever ones you personally prefer). Was the turn-key option not offered when you were in the market for a supercharger kit?

Thanks for the updated info !

Just got off the phone with Dean at Stillen and placed my order for the 9lb pulley... have to sign a waiver before they ship it.

The 370Z Forum comes thru once again !

Bob

3 years ago it was a different story ... These 'kits' were both just coming on to the market.
The GTM kit left you additional choices to make and things to buy.
The Stillen kit was simpler because it was all inclusive and seemed to be more developed.
They both were close in performance.

Talked over my options with the shop that was going to do the install here in NJ.

Twin Turbo vs the SC'rs pros and cons...and they had done Stillen installs.

With that info - and at that time - the logical choice for me would be the Stillen...

Didn't think that I would acclimate so quickly to the added power so I wasn't forseeing the need for upgrades.

uh - oh and ooops !

Bob

What are you planning to do about the heat and maf issues when you turn up the boost on the Stillen kit? Are you putting in bigger injectors too?

Will be going over all this with the speed shop.

Looks like the car will be in the shop a little longer than originally planned.
It will be there until it's all upgraded and ready for next season.
Looking at another week or so perhaps.

Will keep you posted.

Bob

As much as that kit heatsoaks, you might want to look into meth as well.

Sounds like you've done this before !

What would your input and advice be when I talk this over with the shop...?
Not keen on the meth though...but will keep it in mind.

Thanks ! Bob

Take a look at ANMVQ (I think)'s stillen build. He had done just about everything you could do on that kit and got some decent numbers.

wasnt he pushing more than 9psi?

i remember he had custom pulleys and everything, plus this build made more power than ANMVQ's build

http://www.the370z.com/tuning/71056-...illen-s-c.html

besides the point, i dont think the 9lb pulley stillen makes will cause any problems with the kit, and if it does cause heating issues, the bigger heat exchanger should fix that

You still may end up needing different maf piping and injectors. There's very little room to grow with the Stillen kit.

Also, anmvq was AWD, so it had a lot more drivetrain loss.

That's right I forgot he has a G37xs lol. Ya he made a ton a power off the stillen kit

Doesn't the stillen kit come with 600cc injectors? I wouldn't be surprised about needing bigger MAF tubes but I was always under the impression injector size was just fine for the 9psi pulley.

Hey guys,

thanx for remember my build for one, I don't wast the $$ on the pulley I upgraded the SC impeller and on the stock pulley was running 11 PSI, I did make very good numbers 457 WHP and 330 WTRQ and yes on a X coupe. For the three days I drove it at the WHP the car was SILLY, :driving:

I also went with a larger heat exchanger from Frozen Boost.com.( The Sitllen one is rediclous ! bolts the radiator?) UPREV MAF's and 750 CC injectors and DW300 fuel pump.

This HOW fast is spooled with Impeller upgrade, Listen how fast it hits 11PSI !
http://youtu.be/1VtVvIo9J6s

centrifugal superchargers dont spool, they build boost with rpm

Hey ANMVQ

Your Dyno-Pull sounds amazing :tup::tup::tup:

What cooler did you choose from this Factory?
Water to Air Intercooler Radiator - 26x7x3.5 (Type 101)

Thanks for Your response :tiphat:

Ivo

Thanx MAN!!
Yes sir! It looked awesome to, Just like a front mount. :) Only had to buy a few 90 degree fittings. An cut of the tow hitch thingy. LOL

Air to Water Heat Exchanger

Thanks Sir!

I think i'm going this way to :tup:

I noticed in the vid that you have a vented hood. Did you install the vented hood and larger heat exchanger at the same time?

Planning on adding hood vents to the stock hood first before upgrading heat exchanger. I figure the vents would alleviate some of the heatsoak or most??

I thought you did a pulley swap as well as the impeller swap

That's sick to know a impeller swap will increase boost with the stock stillen pulley.
How come you went with the upgraded mafs? If you don't mind me asking.

I'm hoping that works too, I have a Carbon Creations Hot Wheels hood coming to me this week.

I'm not sure I could fit that heat exchanger in my car with the oil cooler, trans cooler and air filters there isn't much room left.

I'm curious to see how much it lowers the temp under the hood. Do you plan to do a before/after test?