The Official 370Z Autocross Thread

[Rusty]

Originally Posted by gomer_110

D.O.T. slicks + rain = No Bueno

Damn it dude. If I would have known you was at PittRace. I would have come to see you.

[gomer_110]

Originally Posted by Rusty

Bleed your clutch with a good brake fluid. Then wrap your clutch line with insulation. I used kaowool.

I hope you wrapped the kaowool with something on the outside of it. Otherwise I'd sure like to know how it hasn't:

1) fallen to pieces yet, and
2) become saturated with road grime and lost a lot of it's insulating properties

Originally Posted by Rusty

When you get ice mode. Is one of the rear tires starting to lock up first? If so, you might want to run a less aggressive pad on the rear. That's why alot of people run the 10/8 combo.

Personal experience is that the carbotech XP series pads are overly aggressive for autox. Used them for awhile (xp10/8 combo) but over all just way too grabby. I've since gone with Ferrodo DS2500 pads and been much happier.

[Hotrodz]

Originally Posted by gomer_110

I hope you wrapped the kaowool with something on the outside of it. Otherwise I'd sure like to know how it hasn't:

1) fallen to pieces yet, and
2) become saturated with road grime and lost a lot of it's insulating properties



Personal experience is that the carbotech XP series pads are overly aggressive for autox. Used them for awhile (xp10/8 combo) but over all just way too grabby. I've since gone with Ferrodo DS2500 pads and been much happier.

I have no experience autox-ing but I have done my fair share of research on brake pads and gomer is spot on about using less aggressive pads than those used for the track. Some stick with oem and it depends on your own braking style or lack there of lol!

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[cjwsrt6]

Originally Posted by Rusty

Bleed your clutch with a good brake fluid. Then wrap your clutch line with insulation. I used kaowool.

When you get ice mode. Is one of the rear tires starting to lock up first? If so, you might want to run a less aggressive pad on the rear. That's why alot of people run the 10/8 combo.

I used motul when the clutch was swapped, stainless lined, guess I can wrap it and see if that helps. It felt like the fronts where locking up more, I still have the stock pads, I may try that out next run. Thanks

[Rusty]

Originally Posted by gomer_110

I hope you wrapped the kaowool with something on the outside of it. Otherwise I'd sure like to know how it hasn't:

1) fallen to pieces yet, and
2) become saturated with road grime and lost a lot of it's insulating properties



Personal experience is that the carbotech XP series pads are overly aggressive for autox. Used them for awhile (xp10/8 combo) but over all just way too grabby. I've since gone with Ferrodo DS2500 pads and been much happier.

Don't worry. I wrapped the kaowool with header wrap.

About the brake pads. I don't autoX. Just going off of my experience at the track. I'm also probing for more info from him.

[zpower86]

Originally Posted by cjwsrt6

Has anyone figured a fix for overheating the clutch? I run two drivers in the south and after some consecutive runs the clutch gets hot and feels soft.
Also I recently replaced stock pads with hawk hps+ and have some ice mode/and lock up fairly easy from a higher stop, running square wheels does anyone think that's the issue? Has anyone had this problem and ran a slightly taller rear? Anyway to stop the computer from doing this without pulling any abs fuse?

I've tried XP10/8 and the AX6 pads. Nothing is better than the stock Nissan pads FOR AUTOX in my opinion. The others put me in ice mode since they are too grabby and you're usually always trailbraking in autocross. That just freaks out the system in this particular car. PLUS the stock Nissan brakes are already great and the others just bleed off too much speed!

I recently had to bleed my clutch fluid after the Blytheville ProSolo. Got a little squishy. Motul fluid is great but it doesn't last as long as the low temp fluids...at least that's my understanding and experience with it. Lasted about a year.

[zpower86]

I posted on FB to bring up the "370Z should be in STU" discussion again. If there's nothing in the works I'm probably going to sell. :/

Feel free to chime in to help move the 370 to STU.

https://www.facebook.com/groups/2204...5523274274255/


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[gomer_110]

Originally Posted by zpower86

I posted on FB to bring up the "370Z should be in STU" discussion again. If there's nothing in the works I'm probably going to sell. :/

Feel free to chime in to help move the 370 to STU.

https://www.facebook.com/groups/2204...5523274274255/


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Not to be a d!ck, but this is a lost cause for the moment. The only way the 370Z gets moved to STU I see is when the boost buggies get faster with the allowance of tuning boost tables and leave the 350Z in the dust. At that point you could probably make a reasonable argument the 370Z wouldn't be an overdog for the class but instead have parity with the now slightly faster boost buggies. As the ST classes won't have open boost until next year the earliest you could make a data based argument for the move is mid to late 2018 meaning 2019 at the earliest before the 370Z gets moved.

Why not just go to ASP? I hear race tires are fun.

[zpower86]

The purpose of the post is to find out what's going on. I'd hate to sell the Z for it just to be moved to STU in a year or so.


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[PharmDZ]

Originally Posted by zpower86

I posted on FB to bring up the "370Z should be in STU" discussion again. If there's nothing in the works I'm probably going to sell. :/

Feel free to chime in to help move the 370 to STU.

https://www.facebook.com/groups/2204...5523274274255/


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I'll put my 2 cents in again, but I agree, I think it's hopeless. I really was hoping for that as well since my car is basically fully built for ST except for having to change my test pipes to high flow cats and pick up a set of 285 RE71R's

[zpower86]

Looks like there will be an SCCA Town Hall webinar for STREET TOURING on June 6th. Register here to discuss the 370Z moving from STR to STU.

https://register.gotowebinar.com/reg...02247773760259

[Brendan]

I was talking to a friend who owns an sti and he brought up the idea of giving the higher power coupes their own class. So essentially move the the z34, z33, corvette and maybe cayman to a supplement class of their own. I think that would be a good solution as well.

[gomer_110]

Originally Posted by Brendan

I was talking to a friend who owns an sti and he brought up the idea of giving the higher power coupes their own class. So essentially move the the z34, z33, corvette and maybe cayman to a supplement class of their own. I think that would be a good solution as well.

IMHO, supplemental classes are just stupid. Either make a "real" class or don't. The use of supplemental (and/or regional only) classes just makes it all that much harder to go from regional to national level competition.

The real answer to all this is the argument:

Currently in STU with no boost adjustment allowed,
350Z performance = STI and EVO performance

Starting next year in STU with open boost,
350Z performance < STI and EVO performance

and to return some parity to the class add the 370Z so that
370Z performance = STI and EVO performance

[PharmDZ]

Originally Posted by zpower86

Looks like there will be an SCCA Town Hall webinar for STREET TOURING on June 6th. Register here to discuss the 370Z moving from STR to STU.

https://register.gotowebinar.com/reg...02247773760259

Anyone participate and bring up the classing for ST?

[gomer_110]

I sat through it. While the 370z classing wasn't a discussion point, classing was mentioned briefly. It was mostly to do with making ST more "all inclusive" so that it can act as a step between street and street prepared. The STAC and SEB members in attendance basically punted and said something to the effect of "if the membership wants this then we could look into it".

TLDR; sitting through it was a huge waste of time.