The Official 370Z Autocross Thread

cjwsrt6 · 05-29-2015, 10:12 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, 01:55 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, 09:23 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 · 06-20-2015, 12:27 AM

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, 10:19 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, 10:34 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, 11:04 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.

carlitos_370z · 08-26-2015, 07:59 AM

Quote:

Originally Posted by Brendan

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.

Awesome!!!! btw want to see some pics of the event

Brendan · 08-26-2015, 07:57 PM

Be careful what you wish for...

carlitos_370z · 08-27-2015, 08:45 AM

Quote:

Originally Posted by Brendan

Be careful what you wish for...

Thanks a lot for link dude!!!

Brendan · 08-30-2015, 08:47 PM

pics from today

PharmDZ · 08-30-2015, 09:30 PM

Quote:

Originally Posted by Brendan

pics from today

How did the car feel today?? I was down in South Jersey - almost beat the evo thats always #1 in my class today =/ coned my last run which would have put me .002s ahead of him. Ended up in 2nd. New OS Giken diff feels great.

fryzia23 · 08-30-2015, 10:38 PM

Brandan, that Z looks very familiar haha thanks for the pics!

PharmDZ, the car felt good just the tires have not much left in them anymore. There were 115 entries with 35 pro drivers. Ended up 34th overall raw time 2nd in my class. Next event is on the 12th which is Saturday, you should come up if you can.

Brendan · 08-31-2015, 07:29 AM

Quote:

Originally Posted by fryzia23

Brandan, that Z looks very familiar haha thanks for the pics!

My pleasure. Your car sounds terrifying.

carlitos_370z · 08-31-2015, 07:47 AM

awesome pics

05-29-2015, 09:23 PM	#708 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	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, 10:19 AM	#710 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	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

08-26-2015, 07:57 PM	#714 (permalink)
Brendan Track Member Join Date: Apr 2013 Location: Colorado Posts: 640 Drives: Poor man's Porsche Rep Power: 542	Be careful what you wish for... carlitos_370z likes this.

08-30-2015, 08:47 PM	#716 (permalink)
Brendan Track Member Join Date: Apr 2013 Location: Colorado Posts: 640 Drives: Poor man's Porsche Rep Power: 542	pics from today GeauxTigers1, Rusty, PharmDZ and 1 others like this. Last edited by Brendan; 08-30-2015 at 08:53 PM.

08-31-2015, 07:47 AM	#720 (permalink)
carlitos_370z A True Z Fanatic Join Date: Jul 2013 Location: Puerto Rico Posts: 7,157 Drives: 13 Nissan 370Z SP M6 Rep Power: 7586	awesome pics Brendan likes this.

05-29-2015, 01:55 PM	#707 (permalink)
j-rho Base Member Join Date: Jul 2014 Location: San Diego Posts: 154 Drives: 1967 Camaro Z28 Rep Power: 11	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, 10:34 AM	#711 (permalink)
PharmDZ Track Member Join Date: Jul 2012 Location: New Jersey Posts: 997 Drives: 11 Nissan 370Z BS M6 Rep Power: 14	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, 11:04 PM	#712 (permalink)
Brendan Track Member Join Date: Apr 2013 Location: Colorado Posts: 640 Drives: Poor man's Porsche Rep Power: 542	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.

08-30-2015, 10:38 PM	#718 (permalink)
fryzia23 Enthusiast Member Join Date: Dec 2010 Location: new jersey Posts: 452 Drives: 2011 MB 370Z NISMO Rep Power: 1245	Brandan, that Z looks very familiar haha thanks for the pics! PharmDZ, the car felt good just the tires have not much left in them anymore. There were 115 entries with 35 pro drivers. Ended up 34th overall raw time 2nd in my class. Next event is on the 12th which is Saturday, you should come up if you can.

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