The Official 370Z Autocross Thread

[FPenvy]

Originally Posted by 03threefiftyz

That car is driven by a current National Champion, etc...and probably not as loud as my car, which is under National SCCA levels. If the event was at Devens, I could understand since they have a super low on site db rating. If not Devens, put in ear plugs and suck it, buttercup.

so youre saying I may have a chance of being legal sound wise? lol

[03threefiftyz]

Originally Posted by FPenvy

so youre saying I may have a chance of being legal sound wise? lol

Do you have a muffler?

[cjwsrt6]

I'd go back, me personally I would not apologize But be aware some events have a sound check, something like 98 dB at 50 feet I believe.

Anyone experience clutch pressure loss while autocrossing? I have an aftermarket exhaust and I've heard the clutch line runs next to the exhaust. Any luck with the Z1 stainless line and higher temp fluid?

[FPenvy]

Originally Posted by cjwsrt6

I'd go back, me personally I would not apologize But be aware some events have a sound check, something like 98 dB at 50 feet I believe.

I plan on going back and if mine is out of the range for their limits that's fine. I just didn't like how the guy worded his comments to me is all.

[Rusty]

Originally Posted by cjwsrt6

I'd go back, me personally I would not apologize But be aware some events have a sound check, something like 98 dB at 50 feet I believe.

Anyone experience clutch pressure loss while autocrossing? I have an aftermarket exhaust and I've heard the clutch line runs next to the exhaust. Any luck with the Z1 stainless line and higher temp fluid?

Wrap your clutch line with insulation.

[Masterbeatty]

I did my first autox yesterday in CT, it seems like the new favorite tire for street class is the direzza star spec II. It so happens to be that they were the fastest behind the A6 and other comp tires. I have yet to see someone run the new R-71, I think after another month when my BFG's crap out on me I will be getting the dunlops.

[FPenvy]

Originally Posted by Masterbeatty

I did my first autox yesterday in CT, it seems like the new favorite tire for street class is the direzza star spec II. It so happens to be that they were the fastest behind the A6 and other comp tires. I have yet to see someone run the new R-71, I think after another month when my BFG's crap out on me I will be getting the dunlops.

are you running the BFG rivals or something else?

those seemed to get decent reviews. I think i'm sticking with RE-11's for my DD use with some track time. I was thinking the RE-71s but from what I've heard so far they wear really fast. would not be ideal for my situation lol

[Masterbeatty]

NO BFG sport comp 2's, they are fine for DD and ok for autox street tire classes. But I need better tires to be more competitive. My club has a new class PRO S, which is any mods but you need street tires UTQG rating no lower than 200 and mine are 300 and almost bald.

[FPenvy]

Originally Posted by Masterbeatty

NO BFG sport comp 2's, they are fine for DD and ok for autox street tire classes. But I need better tires to be more competitive. My club has a new class PRO S, which is any mods but you need street tires UTQG rating no lower than 200 and mine are 300 and almost bald.

I read about that class the other day. also how the RE-71's are rated 200 but no one thinks that is even remotely true based on the rapid wear during auto-x lol

[Masterbeatty]

So far I have yet to see them of know anyone that has used them. But I also found out yesterday I need to upgrade my brakes, as the ladder half of the day I was experiencing brake fade. So im thinking of the Z1 upgrade package for my base brakes or maybe just the fronts for now. Mine have 32K on them and after yesterday im pretty sure I glazed the heck out of them. RRRR, race car problems.

[FPenvy]

Originally Posted by Masterbeatty

So far I have yet to see them of know anyone that has used them. But I also found out yesterday I need to upgrade my brakes, as the ladder half of the day I was experiencing brake fade. So im thinking of the Z1 upgrade package for my base brakes or maybe just the fronts for now. Mine have 32K on them and after yesterday im pretty sure I glazed the heck out of them. RRRR, race car problems.

here's a thread with some info from AK and another I believe who ran them already.

RE-71R experiment?

[j-rho]

The sound limits vary from site to site. The SCCA has a cap of 100db (@ 50') enforced at all events. My home site in San Diego is 92db @ 50'.

My 370 with a CAI, Berk HFC, resonated mid pipe, and stock muffler, blew almost 95db @50'. With no muffler I'm sure it'd be over 100.

It is getting harder and harder for autocross clubs to find and keep good sites for events. Maintaining a positive relationship with the surrounding residents is a big part of the necessary politics in keeping sites available.

[6MT-Z34]

Hey guys/gals

There's going to be an autox event this sunday by where I live. I was thinking of going to check it out and be an spectator but was wondering what do I need if i do decide to try and run? This will be my first ever autox event that i have ever attended and first race/run i will do.

I know the stock Z should be good, but my one concern is my tires, i have some patch work on one of my front tires due to nails and stuff. If I do decide to run this weekend, do you guys think its safe to do so with patches on the tires or should I wait and get a set that doesn't have any "repair"? And what are other things i should consider before my first run?

Thanks!

[FPenvy]

Originally Posted by 6MT-Z34

Hey guys/gals

There's going to be an autox event this sunday by where I live. I was thinking of going to check it out and be an spectator but was wondering what do I need if i do decide to try and run? This will be my first ever autox event that i have ever attended and first race/run i will do.

I know the stock Z should be good, but my one concern is my tires, i have some patch work on one of my front tires due to nails and stuff. If I do decide to run this weekend, do you guys think its safe to do so with patches on the tires or should I wait and get a set that doesn't have any "repair"? And what are other things i should consider before my first run?

Thanks!

just make sure your car isn't loud. I found out the old men who hang out at these events have sensitive hearing.

[6MT-Z34]

Originally Posted by FPenvy

just make sure your car isn't loud. I found out the old men who hang out at these events have sensitive hearing.

damn ...guess i will have to run like an old man then since i have a shockwave exhaust that screams at high rmps

but do you think i should be ok with the patches i have on my tires for events like this?