The Official 370Z Autocross Thread

[carlitos_370z]

Now who can give me a hand with choosing the correct tires for the 18"wheels hahaha!! the wheels are going to be 18x9.5+12 & 18x10.5+15 Thanks!

[stuy486]

Originally Posted by carlitos_370z

Now who can give me a hand with choosing the correct tires for the 18"wheels hahaha!! the wheels are going to be 18x9.5+12 & 18x10.5+15 Thanks!

4x 275/35R18 Bridgestone RE71R

[carlitos_370z]

Thanks!

[stuy486]

Originally Posted by carlitos_370z

Thanks!

Alternatively, if you want a little more life out of your tires and don't mind not having the absolute fastest tire, I'd go with Hankook RS3 V2s, same size (or maybe 285s on the rears)

[carlitos_370z]

Originally Posted by stuy486

Alternatively, if you want a little more life out of your tires and don't mind not having the absolute fastest tire, I'd go with Hankook RS3 V2s, same size (or maybe 285s on the rears)

Thanks for the recommendation dude!

[cjwsrt6]

So what's everyone running alignment wise? I just added a little camber in the rear to -2 and fronts at -1. Toe I kept close to zero -.15.. anyone have any better recommendations?

[gomer_110]

Camber:
Front: -2 to -3
Rear: -1.5 to -1.8

Toe:
0 all around

I run ASP though, so getting more front camber via aftermarket upper control arm is allowed.

[cjwsrt6]

Originally Posted by gomer_110

Camber:
Front: -2 to -3
Rear: -1.5 to -1.8

Toe:
0 all around

I run ASP though, so getting more front camber via aftermarket upper control arm is allowed.

Yeah, I wish some eccentric bolts would work but I'm gonna stick with BS. I had to up rear camber a little due to outside rear tire wear. Anyone having this issue?

[cjwsrt6]

What's everyone's recommended fluids? Brake, rear diff and transmission?

[carlitos_370z]

Originally Posted by cjwsrt6

What's everyone's recommended fluids? Brake, rear diff and transmission?

For the Brakes I use the Motul RBF600 and for diff and transmission Im going to use the Redline 75w90 for diff & Redline MT-85... Im going to do the Diff & Tranny fluids change this month.

[Masterbeatty]

Originally Posted by cjwsrt6

What's everyone's recommended fluids? Brake, rear diff and transmission?

I run ATE super blue for clutch and brakes, royal purple diff and tranny. mobile 1 oil, I've ran this for 3 yrs now and everything has held up pretty well. The main reason is I get a discount for these fluids, so more money for go fast parts.

[cjwsrt6]

Has anyone ran the re-11 285/35/19 on a stock front rim? I know the kumho xs did but would like to be sure before I purchase

[j-rho]

Learned a couple interesting things this past weekend:
1. Disabling the yaw sensor (a Street/Stock-class allowance) also disables traction control.
2. Trying to disable traction control in the middle of an autocross run is very difficult

[AK370Z]

Originally Posted by FPenvy

I plan on running if they let me run lol

i'll go kiss up a small bit if they are really crossed with me about the sound but I am not swapping out my exhaust just for a small couple hour event. not worth my time.

so if they allow it i'm running. if not then fuck em

Where do you plan on running FP? I know all the noise ordinance for Philly Scca and NNJR scca. Philly is 98 db max at 50'. so, at 95 db you get a warning and 97 it's a fix it. NNJR is similar. You should run philly scca.

Originally Posted by carlitos_370z

Thanks for the recommendation dude!

I'd listen to him if I were you. He may know a thing or two about our cars and autox

Originally Posted by cjwsrt6

Has anyone ran the re-11 285/35/19 on a stock front rim? I know the kumho xs did but would like to be sure before I purchase

I did. for year and half. I honestly had a lot of fun but felt 285 might be bit too much for front. 275 I'm feeling a lot better. I actually have a set of 285-35/19" re-11 sitting in garage. Maybe have 7000-8000 miles left on them. I'm going back and forth on selling them or keeping them.

Originally Posted by j-rho

Learned a couple interesting things this past weekend:
1. Disabling the yaw sensor (a Street/Stock-class allowance) also disables traction control.
2. Trying to disable traction control in the middle of an autocross run is very difficult

how do you disable yaw sensor in our car? shouldn't with VDC off, you're pretty much turning everything off (except abs)?
2. most frustrating feeling ever. We have all done it haha

[carlitos_370z]

Originally Posted by stuy486

Alternatively, if you want a little more life out of your tires and don't mind not having the absolute fastest tire, I'd go with Hankook RS3 V2s, same size (or maybe 285s on the rears)

I buy the Kumho KU-39 in 255/40/18 & 285/35/18... now just waiting for the damn wheels to install everything