Need advice for 370z mainly track
 

Hi, I am new here, I just want to get a 370z for track use as i have other cars for daily.
Just purchased a 09 GTM twin turbo 370z 3 months ago. I didn't have a chance to drive it yet. And I don't have dyno sheet, don't know how much power it produce. I just saw someone is selling one with tasteful modified 2015 370z for a really good price(just modified last year) . I will post the modification list of both cars.
My questions are:
1, is the 09 TT okay for track? Is the motor going to blow if i do heavy track use.

2, should I get the 2015 and sell the 09 TT. (Worrying about motor blow, as i never drive turbo car before)

3, Should I get the 2015, remove all the modification parts except intake, header and exhaust, and then put on 09 TT. Put back stock parts on 2015. Then sell the 2015 one. (Almost free parts from 2015)

4, if i am going route no.3, should I just get differential cover, solid motor Mount and all necessary solid bushing(control arm bushings, what else do i need to change?).

My friend running a used car dealership, so i am not worried about taxes or other things.

Thanks

Modification list for 09 GTM TT.
• Greddy 370z Ti-C Cat Back Turbo Exhaust
• Innovate LC-1 AFR Gauge
• Scan Gauge OBDII Code Scanner
• GTM twin Turbo System Stage 2
• GTM 1000HP SS Intercooler
• GTM Turbo Manifolds
• Garrett GT28RS .86 A/R Twin Turbo
• Install Turbo System-Gauges-Clutch/Flywheel-Exhaust
• Setrab 34 Row Oil cooler-oil sandwich Plate Adapter: Thermostat
• Single Custom Gauge Pod-AFR
• HKS M-Series Super Fire Race Plugs-8
• GTM Windshield Washer Reservoir Kit
• GTM Osiris Tune
• Z1 SS Test Pipes
• Z1 Clutch and Flywheel Combo 6 puck
• Defi Advance BF Boost Gauge-Red
• Defi Oil Temperature Gauge-Red
• Defi Advance BF Fuel Pressure Gauge-Red
• Defi Advance Control Unit
• CSC Clutch Throw-out Bearing Replacement
• Z1 Stainless Steel Clutch Line
• Motul RBF 600 Brake Fluid
• Nissan OEM Splash Guards
• Nissan OEM Wheel Locks
• Nissan Navigation Upgrade
• Z1 Silicone Hose Set
• CSF Upgraded Aluminum Radiator
• Mishimoto Thermostat
• AAM Competion Oil Pan Spacer
• Z Speed Performance Aluminum Under Shroud-Black
• GT28 Garret Turbo and Manifold Heat Wraps
• Dynomat sound insulation-trunk area
• Steering lock module-done
• New Cabin Filter
• New brake master cylinder and brake job
• New heavy duty slave cylinder and clutch disc replacement


Modification list for 2015.
- Fast intentions full cat back (has a 100mil cat)
- Fast intentions long tube headers
- Still gen 3 intakes
- Stage 2 clutch with lighter flywheel
- Wavetrac Limited-Slip diff with 4.08 final drive
- SPL solid rear subframe bushings
- Solid transmission mount
- KW v3 coil overs
- SPL front control arms (3-way adjustable)
- SPL rear control arm
- Hotchkis front sway bar with SPL endlinks
- Z1 2 piece rotors front and rear with ebc yellow pads ( driven 2k km on them)
- Z1 SS braided brake lines
- Rjm clutch pedal
- Rjm heavy duty master cylinder
- Ecutek tuned by SpecialtyZ
- Ecutek functions include launch control, throttle high jack for burnouts and valet mode
- 18 inch Konig Dekagrams 9.5 front and 10.5 rear
- 255 front and 285 rear Michelin pilot sport A/S 3+

Reading this like:

> Needs a track build
> Posts a car with a track build
> "Which one should I buy/keep???"

English is my second language, sorry for confusing you.
I just need some advice about these two vehicles. Thanks for reply.

The '09 is horsepower heavy. It needs work for doing trackdays. If you haven't done trackdays before. It will kill you.

The '15 has a lot of stuff already done for the track.

Don't know how much experience you have in doing trackdays.

You said 09 needs work, do you mean the stuff from 2015?
How about put all the stuff from 2015 to 09?
No experience at all, but i will learn by driving "slow " at first.

I use to have at GTM TT kit years ago it's not the best kit the turbo manifolds well crack both of mine did. There was newer manifolds that did come out I got rid of my kit so I have no experience with those . What you have with the kit is there stage 1 turbos that will make 500whp-525whp before there tapped out on pump gas. If I were you I would switch to Ecutek and get a flex fuel kit check the manifolds and see if there cracked and get rid of the Greddy TI exhaust go with a true dual 3 inch Exhaust like Fast Intentions. How many miles is on the engine ? in my opinion you could track the car once you sort those things out and depending on the condition of the stock engine.

Wrong section. You need to take it out the track and see what issues you run into and sort it out from there.

IMHO, a boosted 370z, unless owned and operated by an individual at a very high mechanically technical level, and high level of tuning familiarity, is not going to make it through its first track day. A NA>Turbo car is very different than a factory boosted car; in that the level of molestation performed on the car is quite extensive. Most aftermarket parts are nowhere near track-ready dependable, and a NA>Turbo car is full to the brim with them. The majority of builders are building street cars, with no aspirations of ever seeing the back to back abuse a day at the track will put on them.

If you plan to put your 09 on the track, I recommend getting the car to a serious tuning shop who has real track car experience to have the power set as conservatively as the wastegates allow, and to have the car inspected both mechanically and its tuning to make sure you have the best shot of making it through a day at the track. You will also need to keep the fuel tank FULL, fill it between every session, or the unbaffled fuel tank will cause a lean condition in turns that will almost certainly destroy a boosted VQ.

The 2015 you listed sounds much more dependable for track use. Your turbo car is going to need a whole lifestyle adjustment to keep trackworthy. Its not that you cannot track a boosted 370z, but there are some serious ramifications to tracking that type of setup. Its not going to be a casual experience to just pop into the track every now and then when you feel like it, at least not for long.

Thanks for the replies,
I am not even at entry mechanically technical level.
So looks like I should get the 2015 and sell the 09 TT.
I will learn more by taking more seat time.

Thanks again

What did I tell you in your OTHER thread? :rofl2:


You're a newbie at doing trackdays. The best thing is face time with the windshield before stepping up with big power.

Ya, i got you. I should focus on seat time more.
For that 2015, it already has an OEM oil cooler, do I need to upgrade to 34 row one?

You bought a used, modified car …that you never drove?

I wouldn’t trust any car that’s been turbine by someone else. N]who knows if the work was done competently


Punt the 09

Get the 15 AFTER TEST DRIVING IT AND INSPECTING IT

Whoever turbo’d the 09 without any suspension mods is a fuckin idiot

I say a couple of nice Z's. I'd have the 09 to a good tuner. See how the motor is. Is it damaged? If after a complete review by tuner: Install upgraded oil cooler. Install adjustable coilovers and have the supension checked and dialed in by a professional.
If you were closeby. I'd recommend a garage in San Jose, Ca. They can fine tune it like a watch.

I'm assuming since he's asking this he will be inexperienced.

The 09 has no additional aero to deal with the extra power to the wheels. That alone will be a headache to deal with even with a decent amount of track time, I know. No car is built to withstand track abuse, eventually something will go and cost money to replace, I had to replace my transmission when fifth gear's synchro disintegrated. Not to mention all the times I came very close to walls that could have turned out to be a complete loss of the car.

What you really need to have a good 370Z track day car.
Oil Cooler, Sport Brakes and track pads + fluid, Good tires, Anti fuel starvation system

Optional (this will negatively impact daily driving (noise/comfort) but give a good boost to track performance)
upgraded coil overs, upgraded sway bar and end links, Upgraded diff

Any other money should be put to seat time and instruction and safety equipment (which can easily be +$10K).
Seats, Harness, Harness bar/roll cage, data logger, etc.

In the very long run the 09 will be better if you & it make it there. Its kinda like starting off with a 1000cc superbike instead of going through the normal progression of learning from a 250cc one. Sure you can do it but it's a bad idea.

Absolutely.