In street tire class, Grassroots Motorsports has rated them up there along with Bridgestone RE-71RS For endurance and speed. Everyone I know that use them only have good things to say

That's extremely high praise! Bridgestone is excellent for track performance. All of that R&D from SuperGT is filtering down.

I installed a crappy Ebay spoiler to go with my Aeromotions. i got sick of seeing the poor thing collecting dust so I decided to experiment. It required some trimming and admittedly, it was not my best work. However, that's why I bought an Ebay one and not a real NISMO spoiler) Lots of cutting.

https://imgur.com/2N4fJ5mh.jpg

Side note, I would love to have a new NISMO. They really fixed the front end of the car. I just can't fathom paying 70K for a Z. I'd rather buy a 380RS and let it sit in Japan until I could import it.

^^ Looks great! I like that wing.

Installed the hood vents this weekend. Kept having issues with the revit gun jamming. But, came out alright.

What was your weapon of choice to cut the hood, and how’d that process go for you?


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Picked one of these bad boys up,
https://images.thdstatic.com/product...420-64_145.jpg

It comes with a 3in wheel. But, I would def recommended getting the one with the 4in wheel.

Process was not too hard. Took my time measuring and taping the templates. And I would take breaks so the batteries can charge and the tool can cool off. Probably a 5-6hr job.

The best part of the job. Is explaining to the wife why I am "upgrading" my car. :icon17:

I’m thinking about doing this upgrade as well, even though I’m not boosted.

When my wife see’s I’m slicing up the car, she’s going to flip! :rofl2:

Just tell her its for the safety precautions. Always works :tup:

I don't know how hot it gets in SC, but it's worth the upgrade even if you are not running forced induction. My when moving rarely go above 187F. on a nice day, they hang around 183-185F. The rate at which heat is removed after stitting still is amazing. I only have the center vent too.

Just make sure all of the plastics inside of the bumper are in place and in working order. Those air guides improve efficiency.

It gets pretty damn hot! :icon17: That’s 100% why I’m considering it.

Installed my Z1 intakes today along with the Dewla Dezign air guide. The Dewla took way too long! I actually called the guy and we figured out the issues. I had to pop rivets and cut some metal out (where Nissan tried to make their own guide to the radiator on top of the crash bar. Dewla ended up changing their PDF after i told him what i did and sent pictures. The intakes weren't too bad to install. I ended up running to the store 3 times and having various issues here and there. I also installed my new bottom diffuser with scrape protection. FYI. I bought it from Nengun and only paid around 450? with shipping from Japan.

http://www.the370z.com/members/infla...umper-back.jpg

http://www.the370z.com/members/infla...-air-guide.jpg

^^Nice choice with the red. Looks good:tup:

Replaced my corded front PS4S with a set of Firestone Indy 500s to last until my rear PS4S are toast. 285/35/19 up front.

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damn! i have two 265/35R19s that were on the front of my car doing nothing now!

All ready for tomorrows track day.

Also hustling to get the car ready for Tuesdays track day. Weather says 88° so it’s gonna be a hot one. That gave me the motivation to finally get around to making a duct for the oil cooler.

Looks kinda janky.. but hopefully it helps out!


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Put on a Z-1 Aluminum undershroud on my 370Z. It took me 3 hours mostly because of not being able to use the rivet tool that came with it, but now I am looking forward to only having to loosen two 10mm bolts instead of the 16 bolts and 3 pushpins on the original plastic undershroud. Hopefully, it will be better vented to keep the oil a little bit cooler.

Intereesting setup. Looks simple. Definitely let us know how it does out on track.

I actually took those pics on saturday and track event was on sunday. Went to Sonoma Raceway. Temps were around 87-89° around 2pm. Not too bad. We get some gnarly heat here in Sac. I think Thunderhill was 116° this past sat:eek:.

Racecar Wing
 

So after some thought and as much as I liked my sport wing. The Z just looks right with the Nismo wing. After seeing it on danegrey's car I opted for the Siebon cf style wing.

So this thing was a straight forward install. But I dont think my measurements were perfect. The wing sits a tad bit behind. Drilling was fine and holes matched up. Got some 3m tape and fitment was like 8/10. But, I like it.:tup:

Blew $2500 on an order a few moments ago. Ordered a set of KW V3 for the Z!

88F hot? hahaha (i kid good luck!) I did days with 104F ambient so you should be ok if you have your oil changed and cooling sorted.

What did you do with your Z today V (ON TOPIC DISCUSSION ONLY)
 

Not sure what the temp actually was yesterday, but the car was reading 100°+ on the gauge for all 3 sessions. I think ambient was more like low 90°s.

An update on the duct I made… it was an improvement over my previous setup, because I “only” hit a max of 250-255°F in my first two sessions with similar driving on my end, despite the hotter weather. HOWEVER, I did turn traction control off for my last session (first time driving on track without it), went ~4sec faster, and hit 260°. Limp mode kicked in hard. So the duct helped a bit but I still have temp issues on a hot day with multiple “push” laps in a 20min session. It’ll only get worse the faster I get.

Not sure if this is related.. but my oil temp gauge is a little jumpy at higher temps. It must be going bad. I’ll get that sensor replaced and hope I miraculously have lower oil temps haha


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very nice! Yeah, the standard traction control programming on a NA Z is unnecessary on a track. One of these days I will take my Z back out there to try the ECUTEK settings in the wet. It was silly-good on the street with the limited testing I was able to do.

Some pics from my last track day. My best for the day was 2:02.3 Garmin was giving me an optimal of 2:01.0. So im definitely leaving some time out there. Sonoma Raceway has a tricky turn 2. I could not get that turn right. If i can figure it out I can definitely sub 2. Gonna see if i can hitch a ride with someone from advance group next time.:driving:

Gonna drop these parts and the car off to a shop on monday. Was highly considering doing this install myself. But a friend talked me out of it. So a local shop gave me a reasonable price on install. Exciting stuff.

Swapping the diff is not a big deal at all....but installing the LSD, and making sure to get the correct backlash and preload - that's a lot of work. A lot of hydraulic pressing in/out, a lot of measuring, a lot of machining of rings to get the adequate spacing..... in short, a lot of tedious work.

From what i read if you are going to keep the pinon gear the same then just put the new lsd in with the same spacers that came out. Ive heard some people doing this and have no issues at all. But yes. I agree if you want to be most accurate its best to check the backlash. The shop I spoke to said he measures all those tolerances.

After all the monies spent. Best to get it done right.

That is not true. You are assuming that the lsd unit is exactly the same width on both sides from the center, which isn't necessarily the case. The unit itself may be well made, but you can't blindly trust it fits these criteria up front. It could, but if not, it will eventually damage the final drive.

Got the old gal back from the shop today. He said the install was smooth and straight forward. He was more experienced with the Kaaz Lsd so when I told him about the short stubs he wasnt sure what that meant. So he called and spoke with Z1 and get correct info. Car honestly feels the same just driving it home from the shop. Maybe a little more whin from the diff. I have a small oil leak from the oil cooler so I didn't want to get on it. Gonna put some miles on it before I take it out on track.

Thanks to Charlie and the team at FTP!

That's what I'm worried about - the installation really is simple....but are you sure it's done correctly? Because that part is anything but simple.
There shouldn't be any whine from the diff. When you think about it, while normally rolling forward, there is virtually NO change anywhere - the pinion contacts the final drive, which rolls the whole unit, thereby turning both axles equally fast forward. The LSD is not working here at all - there's no need for it to work.
So if there's noise....well then there's either incomplete tooth engagement, or incorrect backlash or preload.

Anyhow, if you're happy with it, all good. I don't mean anything bad by the above.

Is the LSD 1.5-way or 2-way? Does it come with the break in period? It might be a good idea to swap the oil after a thousand miles or so, just for peace of mind.

I greatly appreciate your input. Im no expert in this stuff. I will drive it around more and if I notice more whining I can bring it back to them. He told me he checked preload and backlash. He said he made a vid on his phone of the process. So I can show you guys and get your input.

Not gonna lie. You are making me nervous:eekdance:. Taking away my excitement. But, its all good.

The shop I took it to is Full Throttle Performance in Rancho Cordova. Looks like they are specialist in Nissan and Infiniti. He is the same guy that installed my Z1 anti starve kit.

I think Wavetrac is 1.1 way. I dont know exactly. Maybe someone can chime in with the info. I would guess its similar to Quaife. As for break in, there shouldnt be any. But im taking it easy for the first 300 miles.

When I installed my OS Giken LSD. I checked the backlash before disassembly and after assembly. Used the same shims on both sides. My backlash stayed the same. Also checked contact gear pattern before and after. It never moved. Some have to change their shims on some installs.

Yeah, my apologies if I'm taking away the excitement and adding to the nervousness, really not my intention.
I'm saying this because when I first did this installation myself, I reused the shims and put everything back as it was, and after hours of putting everything back together - it whined! So I had to REDO everything again, take everything apart until I had everything setup well, backlash and preload adjusted exactly, and then it was OK.

Third time this was being done, was when I exchanged the final drive, but I was completely uninterested in doing that crap yet AGAIN, so I sent it to the specialist. And yes, it's completely silent.

So, don't be nervous about it, but in case you can really hear it and it kinda whines, then you might wanna have it checked.

Regarding "x-way" of the diff, that's cool. The main difference is that the 1.5 and 2 way especially, will lock up the diff when releasing the throttle and when coasting, which can make the car very tail happy unexpectedly. If you're into drifting, then maybe you really want that behaviour...but for normal LSD purposes, normal LSDs are better.

Interesting. I will drive the car more and see how it goes. Thanks.

Wavetrac is a mechanical gear type, not a clutch. This type of diff is also called a Torsen (Torque sensing) with Quaife being one of the bigger makers.

in general a torsen will send power from inside to the outside in a corner through the gear mechanism, but it relies on both sides having grip. If one tire does not have griff it will not lock at all and is an open diff

Wavetrac has an added design that counters this (Google, there are diagrams) so that even when one wheel slips, there is still some lock and power will be transmitted to the wheels.

It does not lock as hard as a clutch type, but requires much less maintenance and doesn’t need a diff cooler. This makes it above open diffs, OEM VLSD, or a quaife, but below a clutch type in raw power. It will also be quiet

So a small update. Ive put about 110+ miles on the new lsd. It is amazing. No whining or any noise. It feels very similar to the vlsd for daily driving. I have a track event coming up in Sept. So I cant wait to test it out.

OptionZero - When I was shopping lsd I was considering the OSGiken, even Z1 said I should go with that. But it seemed like alittle more work for me. So the Wavetrac was right up my alley. Low maintenance and better than the vlsd. Someone had mentioned the car should have came with this. And I cant agree more.

Yes, a number of our veteran users here have OS Giken. Check out the track section and search for "giken" and you should get a bunch of feedback.

It does heat up so it needs a diff cooler. Hardware isn't that bad it seems, but some wiring is needed. You can do an on/off switch or attach it to a temp sensor to trigger at a certain mark. All told, it's another $1,000 on top of the diff, plus you have to use OS Giken fluid and change it every year or so.

Performance wise, it's awesome, but effort is high.

Wavetrack is a compromise. Drop it in, no cooler needed, fluid doesn't need to be swapped nearly as often, and streetable.

I have a VLSD (came with the nismo), which is fine for now since I'm still learning. Next season I will look into stepping up to Wavetrac or OS Giken.

I think I saw you at Thunder Hill - were you at Speed SF earlier in July?

:tiphat: I was out on Thunderhill in June. In July I went to Sonoma. I signed up for 09/01 with Speedsf. I usually go out with SpeedSf or Lightspeed. You should come out. It would be cool to have a fellow Z out. I occasionally see Zs out on track but never get a chance to conversate.

I've got Sonoma on 8/3, i forgot that it's actually closer than T-Hill and very fun from what i remember. I was there 10+ years ago in my S14

T-hill is wierd to me. The turns don't flow together in my head as easily as Sonoma did - i think i played Sonoma so much on Gran Turismo, I picked up the rhythm much more easily

Buttonwillow is the one that totally messed me up. It felt so flat and clunky