The Official 370Z Autocross Thread

gomer_110 · 05-03-2015, 05:36 PM

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 · 05-03-2015, 05:55 PM

Quote:

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 · 05-06-2015, 07:17 AM

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

carlitos_370z · 05-06-2015, 08:06 AM

Quote:

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 · 05-06-2015, 11:30 AM

Quote:

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 · 05-23-2015, 04:09 PM

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 · 05-28-2015, 02:57 PM

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 · 05-28-2015, 11:30 PM

Quote:

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.

Quote:

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

Quote:

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.

Quote:

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

cjwsrt6 · 05-29-2015, 09:12 AM

Quote:

Originally Posted by AK370Z

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.

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

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.

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

What does everyone mean by 285 is too much upfront? I keep seeing people stating this. I've always been taught to run the widest front tire with whatever holds the rear to help turn in and if it's enough front tire you use less brake and the turn scrubs scrubs little speed

j-rho · 05-29-2015, 12:55 PM

To disable the yaw sensor, you can cut the green wire going to it (it's the Bosch sensor in the center console). Or you can wire up a switch - I used a factory seat heater switch to enable/disable mine.

Re: 285s in front - tires work best on proper width wheels, and ideal is usually when wheel width is about the same as tire width (1 inch of wheel width) = 25mm of tire width. That means a 285 tire works best on a ~11.5" wheel, much wider than the stock 9's. That doesn't mean 225's (~9" wide) tires are best on the stock front wheels, only that you're getting to a point of diminishing returns. The tire's construction also matters a lot too - something like a Hoosier A6/7 is designed to work well when "pinched" on a narrow wheel, but normal street tires aren't.

gomer_110 · 05-29-2015, 08:23 PM

fwiw I run 315/30-18 Hoosier A7's on a 18x10 wheel in the front. Turn in is great. Unfortunately, this doesn't help you street class guys much.

PharmDZ · 06-19-2015, 11:27 PM

Quote:

Originally Posted by gomer_110

fwiw I run 315/30-18 Hoosier A7's on a 18x10 wheel in the front. Turn in is great. Unfortunately, this doesn't help you street class guys much.

They rub the fender at all? What offset wheel? I fit a 295 A6 on the front with the stock Rays but haven't tried a 315 front. I have a set of Enkei PF01 18x9.5 +35 and 18x10.5 +15 that I run nitto NT01's on right now.

gomer_110 · 06-20-2015, 09:19 AM

No rub that I've seen. Wheels are 18x10 +30 front, 18x11 +18 rear with 315/30-18's all around. Currently at ~factory ride height with -3.0 camber up front although I know as little as -2.1 still doesn't rub.

PharmDZ · 06-20-2015, 09:34 AM

Hmmm I may have to try out a 315/30r18 square setup once my nittos are done. I'm curious to see if it'll fit. I'm running -2.5 front camber, dropped maybe an inch on KW V3's. It'll be a bit of a pinch on 9.5" rims but it may work. God knows the car needs all the help it can get up front. lol

Brendan · 08-25-2015, 10:04 PM

Bump.

Pretty cool weekend. We had two 370 in the top 3 in BS. There was also a pretty sweet looking, Boosted nismo running in ssm.

AK370, it was nice meeting you. You drove well man. Congrats on the 1st place.

05-03-2015, 05:36 PM	#1 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36942	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. PharmDZ likes this. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

05-28-2015, 02:57 PM	#7 (permalink)
j-rho Base Member Join Date: Jul 2014 Location: San Diego Posts: 154 Drives: 1967 Camaro Z28 Rep Power: 12	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 likes this.

05-29-2015, 08:23 PM	#11 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36942	fwiw I run 315/30-18 Hoosier A7's on a 18x10 wheel in the front. Turn in is great. Unfortunately, this doesn't help you street class guys much. PharmDZ and carlitos_370z like this. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

06-20-2015, 09:19 AM	#13 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36942	No rub that I've seen. Wheels are 18x10 +30 front, 18x11 +18 rear with 315/30-18's all around. Currently at ~factory ride height with -3.0 camber up front although I know as little as -2.1 still doesn't rub. PharmDZ likes this. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

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05-06-2015, 07:17 AM	#3 (permalink)
cjwsrt6 Enthusiast Member Join Date: Apr 2014 Location: Alabama Posts: 452 Drives: 2005 crossfire Srt6 Rep Power: 13	What's everyone's recommended fluids? Brake, rear diff and transmission?

05-23-2015, 04:09 PM	#6 (permalink)
cjwsrt6 Enthusiast Member Join Date: Apr 2014 Location: Alabama Posts: 452 Drives: 2005 crossfire Srt6 Rep Power: 13	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

05-29-2015, 12:55 PM	#10 (permalink)
j-rho Base Member Join Date: Jul 2014 Location: San Diego Posts: 154 Drives: 1967 Camaro Z28 Rep Power: 12	To disable the yaw sensor, you can cut the green wire going to it (it's the Bosch sensor in the center console). Or you can wire up a switch - I used a factory seat heater switch to enable/disable mine. Re: 285s in front - tires work best on proper width wheels, and ideal is usually when wheel width is about the same as tire width (1 inch of wheel width) = 25mm of tire width. That means a 285 tire works best on a ~11.5" wheel, much wider than the stock 9's. That doesn't mean 225's (~9" wide) tires are best on the stock front wheels, only that you're getting to a point of diminishing returns. The tire's construction also matters a lot too - something like a Hoosier A6/7 is designed to work well when "pinched" on a narrow wheel, but normal street tires aren't.

06-20-2015, 09:34 AM	#14 (permalink)
PharmDZ Track Member Join Date: Jul 2012 Location: New Jersey Posts: 997 Drives: 11 Nissan 370Z BS M6 Rep Power: 15	Hmmm I may have to try out a 315/30r18 square setup once my nittos are done. I'm curious to see if it'll fit. I'm running -2.5 front camber, dropped maybe an inch on KW V3's. It'll be a bit of a pinch on 9.5" rims but it may work. God knows the car needs all the help it can get up front. lol

08-25-2015, 10:04 PM	#15 (permalink)
Brendan Track Member Join Date: Apr 2013 Location: Colorado Posts: 646 Drives: Poor man's Porsche Rep Power: 544	Bump. Pretty cool weekend. We had two 370 in the top 3 in BS. There was also a pretty sweet looking, Boosted nismo running in ssm. AK370, it was nice meeting you. You drove well man. Congrats on the 1st place.