New 2018 Nissan 370Z Nismo

cadoo

I’m going to PSI in Hillsboro OR on the 7th of June to get a custom Tune and Map and to be put on the Dyno. When that is done I will post all the results. On another note I am not liking the sound of my Injen cat-back exhaust. Really quiet which is fine for some but not for me. My AAM Short tails sounded great but just a little to loud. Anyone know of an exhaust that is just a little less louder then the short tails? Maybe something in between the Injen and AAM Short tails? The shop said they could take the resonator’s out. Maybe that will lively it up a bit.

Bikeracer1098

I’ve got the Cobra Catback along with de-cats on mine and it is very noisy.

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jchammond

Call Fast Intentions & get on the list...heck; with the SC you can get Long-Tubes & TDX!
You won't regret the sound!!!

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MazWorx built long block | FI-TT-100 Stage 2.75 | IPT built 7A/T

http://www.the370z.com/members-370z-...s-musings.html

hustleman222

The aam short tails have a perfect sound if you pair them up with Motordyne art pipes (resonated test pipes)

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316whp/262tq 12.38 @ 110mph on 3.91 gears
336whp/273tq Didn't push it hard enough.
Turbo Time

cadoo

Hey Guys I keep getting a P0300 code coming up. This code was happening a lot when the cupler was loose or came off but after putting on the new clamps that code stopped until yesterday. I was driving in the back roads having fun and boom the check engine light came on. I checked the clamps and they are holding and the Z is running great with consistent boost. Here is a screenshot of what it could be. I really think there might be a small leak in the cupler. I’m taking the car to the shop on Tuesday to take off the resonators and then the tune and Dyno on Thursday. Also I have to stick with the stock cats because of my stillen supercharger. They said the HFC will create way to much heat and test pipes were also a no go. I’m looking for a cat-back exhaust that sounds great without the aid of HFC, test pipes or headers. I got to stick with the stock cats. Thanks everyone for the input.

P0300 NISSAN - Cylinder Misfire Detected Random Cylinders

Possible causes
Faulty spark plug (s)
Faulty ignition coil (s)
Clogged or faulty fuel injector (s)
Intake air leak
Fuel injectors harness is open or shorted
Fuel Injectors circuit poor electrical connection
Ignition coils harness is open or shorted
Ignition coils circuit poor electrical connection
Insufficient cylinders compression
Incorrect fuel pressure

Attached Images

5AB6066E-E9C2-4B09-863A-8BC856DE9561.jpg (154.1 KB, 11 views)

jchammond

Do you know if the shop put in colder heat range plugs w/a tighter gap?
As the Turbo boosted cars do this; unsure on the Stillen SC setup.

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MazWorx built long block | FI-TT-100 Stage 2.75 | IPT built 7A/T

http://www.the370z.com/members-370z-...s-musings.html

cadoo

I will ask them on Tuesday.

cadoo

So looks like my motor is blown. I’m so upset That I haven’t even wanted to post what happened. My car is BRAND NEW under 400 miles. I haven’t really got to drive it just to the shop and back. As soon as the Stillen kit and tune was put on I was getting P0300 code plus idle was up and down. When I took it to PSI they said there not going to tune it until they find out what is wrong. They got a P0304 code. They checked compression on cylinder 4 and it was super low

Ian B

This is unfortunate and reason why I do not want to mod my 370Z. Is it covered under Nissan new car warranty or the mods voided the Nissan warranty???

Good luck,

Ian B

cadoo

I haven’t even gotten that far. I need more info which I haven’t gotten yet.

ZoomZ

Very sad to hear. Breaks my heart.

Going forward, why do you need a new engine? Can you find a decent shop that can pinpoint exact failure and replace parts as required?

Did you check oil and oil filter for metal?

Without removing engine, you can boroscope the cylinders and MAYBE remove oil pan and check bottom end.

I know this is happening very quickly but just trying to give advice and you can refer to it at your pace.

In the end, if it's cheaper to replace engine, so be it. However, I'd look into it a little more.

Good luck and keep us posted. We want to hear some good news.

ZZ

cadoo

It’s cheaper for them to replace the motor because the other way requires way to much labor time. I don’t know anything further until they call me. They first have to see exactly what is wrong and what to replace im guessing. As soon as I know more I will post it. Besides the Extent of the damage I want to know what stillen has to say.

cadoo

Ok UPDATE! Sorry it’s been so long but it took forever to fix everything and didn’t want to post until the outcome of what Stillen was going to do. It’s been a real nightmare. At first Stillen didn’t want to help, claimed I didn’t fill out the warranty or pay for it, (even though I have copies of it), and they denied everything and were no help at all. SINCE then they have took responsibility and are paying for all damages and sent an updated tune for a 2018 Nismo. The shop (ARauto) Had my back the whole time and went above and beyond. Also Eugene from this forum has been HUGE. My car should be done this week. When I do get my Nismo back I can go more in depth as to the damages and outcome including what tune I’m using and so on. I took a brand new 2018 Nissan 370Z Nismo into the shop to get a stillen supercharger and I still don’t have my car back. I wouldn’t suggest putting on a tune unless it’s verified and proven. Stillen has come through and has paid for all damages but it was NOT an easy road. I still have not gotten a phone call with a simple sorry yet. Anyway will update and answer questions as soon as my ride is home. Thanks.

Nick370

Can you say what constitutes "all damages" are they paying for your new motor? all labor costs? Whats considered all damages?

Also, seems as tho, unfortunately, those telling you not to go with Stillens tune time and time again were right, not trying to throw salt in the wound here. We've all been down a similar road at some point, I wish you the best of luck with it!

Also, do you have an AFR Gauge? I would suggest getting one if not, this way you can see how good the tune is on the fly and if the tune slips you know before its too late. I learned this the hard way on my turbo 240sx... and, I too, had to replace a blown motor...

cadoo

So “all damages” means they paid for all the parts needed and the labor. Uprev paid half and Stillen paid half. I went with Ecutek got the sensors, AFR gauge, hardware and tune. Took a while to fine a Ecutek calibration that would work. Kept getting a VVEL code that would not go away. Come to find out Ecutek won’t work with the 2018 370Z Nismo either. When we would load the Uprev tune the problem was gone. Ecutek is aware that there tune is not completely compatible yet. Good news though, as everything is running fine on the updated tune that stillen sent us. No codes and everything looks fine. The shop is putting on some break in miles on the motor but so far all is going well. Once break in is finished, They will get the car into boost to make sure everything checks out there and do some logs as well via uprev. Will post update when I find out more.