What wheels you get depends on what class you want to run in and how competitive you want to be. To stay in stock class you must have wheels that are the same diameter and width as stock while being within .25" on offset. There are pretty much zero options that meet all these criteria so as far as I know most everybody uses the stock rays for autox duty, they are pretty lightweight forged aluminum after all.

If you don't care what class you run in then I would definitely look into getting some good 18" wheels, maybe 10" width all around and use 295's for street tires and 315's for hoosiers.

the idea is to run in street prepared until its supercharged next year. that or a local street tire class we have at a local AX i do.

fuel starvation with 1/2 tank....

Was getting cut out at the turn around on course yesterday. Oil temps were at 220 starting the run, 245 at the end....thought I was getting some momentary limp mode, but after reading fuel starvation posts this morning, I'm convinced it wasn't limp mode, but fuel starvation...with 1/2 tank of gas!

Looks like I need to add more weight in the rear.....people have gotten it with as much as 3/4 of a tank on the track

Welcome to the fuel starvation club! For a typical auto-x course as long as I keep it just above 1/2 I'm fine. On the track it can cut out at 3/4 because of the longer corners.

Limp mode doesn't kick in until 280, and I've regularly reached 260 during a run during the summer. Turning on the A/C at the end of the run kicks on the extra cooling fan which seems to help speed up the cool down.

When it was happening, I started thinking about the quickest way to cool things down, and was wondering if the temp would come down quicker with the engine running or turned off (hood open of course).....so I'll have to keep the A/C mode in mind at the ProSolo when the runs come quicker!

I remember running my Honda's with the fuel light on and never got starvation...oh well, I'd rather have fuel starvation than limp mode so am glad it turned out to be an easy fix

I've found the car cools the fastest between runs with the engine running, AC on full blast, and the hood open. Dual driving the car in the summer might be interesting but I think I can make it work.

And yes fuel starvation is a bitch and really prevents the car from getting the race weight down. I'm going to try and drop the muffler section at the next event I go to with sound and see if it still passes.

Anyone getting out there to more events?

I've had decent sucess in BS at both national events, 2nd at SD NT to the national champ, and then 3rd (just missed second by redlighting) at El Toro Pro again to the national champ. I gotta find more speed and get more use to the new car (non Z I know...).

Season is still in its infancy up here in the Northeast....we've only had three events so far....1st was cold in the 30's, 2nd was warm but a small dirty lot, and the 3rd was in the rain....so no real consistent seat time for me yet, but the national events in the area will begin within the month so its trial by fire for me...

I am running 265/285 RE11s. The setup seems to work okay except the car still tends to plow quite a bit, traction off the corners aren't an issue. If I could, I would try to get wider front tires. Of course it doesn't help our lots are tiny as hell

We're 5 events into the season here. I'm undefeated locally but just picked up a co-driver so the competition should get alot better here soon. Just registered for the NT in Blytheville and got a fresh set of A6's on the way. Should get another good dose of national lvl competition with carter thompson.

Good to hear everyone! I'll only get to do about 5 local events for the entire year, coupled with 7 national events. So not much practice for me! I have a great shot at getting a win in BS next weekend at Wendover NT.

2 370's already registered for nationals, that anyone on here?

2 different 370z's...sick! Pretty sure Jeff is pgrmstr

My co-driver is signed up in BS, so we have our number. I'll wait until the last minute, kinda pissed at SCCA at the moment, so I really want to hold out on paying them.

So what's everyone doing for rain tires? No Hoosier wets in 19's....

Yeah, I registered this past week....and the other 370z is from my region, with two guys driving it but only one registered so far. the car owner is on here...but can't recall his screen name, and he's not very active.

Running A6's at this point....otherwise its trying to find the best ST tire that comes in our size...although I am not rushing into doing that.

The way I see it, at the big events, if it rains, we're screwed....I don't care how good the street tire of choice may be, it won't keep up with Hoosier wets on an RX8 or MSR so I'm losing no sleep over getting something

:iagree: sucks though, lol

That's me. And I just registered.

(I mainly just lurk on the forums)

Welcome! Good luck at nats!

Has anyone noticed these wheels yet?
5-Zigen ProRacer ZR+520 - Gun Metal Wheels - Wheel Size & Price Details - 1010tires.com

By mid season I'll need a second set of race wheels to make tire rotation more practical and these seem like a real possibility since the supply of stock wheels for sale seems to have dried up. There's a 19x9 +42 which works in the stock allowance, and there's a 19x10 +38 which would work with one of those little 3mm spacers. They are about 5lbs per wheel heavier than stock, and a full set would run just over $1k. The 5zigen site specifically mentions that they will clear the brakes on the z34.

If I were to pick these up I could either run my old tires on them locally or use them for my street tires and use my original stock wheels for the second set of tires. Am I correct that these would be legal with spacers in the rear? And since I'm already pushing around 50lbs of unsprung weight, is another 5lbs going to really hurt?

This is the only set of aftermarket wheels (cheap/lightweight or otherwise) I've seen that would work in SCCA stock class. Are there any other options that I haven't noticed?

When I was looking i found getting stock class replacements besides stock wheels to be difficult. Im sure another set of stockers will show up, probably for less than 1K as well.

I have an extra set of stockers and if I need a third set I'll probably buy something else to use everyday and then use my original stockers for race tires. I haven't been able to find anything in the stock sizes.

Nice job 'Ruff' on your tour event this past weekend at Wendover! Looks like you had a tough time on the first day, but a good result.

Thanks, car broke saturday and was broken on my runs, lol, so I had no chance. Made some bandaid fixes on saturday night, and as your saw, took top time in class on sunday. Had the car not broke, no doubt in my mind I would have taken the win. But battling back like I did, given the circumstances, I'll take it!

On a side note.....drove against 'Junior' this past weekend and about 5/10's off his pace, but am getting the feel for the car much better. This was actually my first "good" event in the car, as the previous 3 were under less than ideal conditions weather wise. None the less, having been out of the game for the past two years, I'm feeling pretty good about the upcoming season :)

In my opinion, this is not a BS car as it sits though....as a good BS driver in a Solstice was a good couple seconds ahead on each of the two days. He won PAX for the event, with several Nat Champs in attendance so he was on his game.

The Z's diff is what kills it....with CONSTANT inside wheel spin. With shocks, it may get a little better, but it ain't on par with the top BS cars as it sits....

NE Divisional in two weeks!

Isn't it a CS car?

Yes, it's CS....but there are those who say "it's a BS car, should be moved from CS" so I was trying to say that I don't think that's the case....or at least it wouldn't be a top BS car if moved....a back marker at best.

Having not run against any National level RX8 or MSR yet, can't say how it is in class (CS) against the them though.....is it an overdog? Probably not....a contender, yeah :tup:

What's Junior driving these days?

I totally agree with you about the stock diff. It is fine with street tires, but with race rubber the inside wheel gets too light and you get wheel spin. Usually you will also see the flashing slip light from the traction control as it starts to brake the spinning wheel.

I think only the Nismo is BS.

A former national champ drove the car, he believes the car should be competitive for CS, not sure if it will dominate. He loves the shorter wheelbase, but cant stand the LSD as it gives tons of inside wheel lift, even on the RE11. It will only get worse on A6

That's weird, I'm not really experiencing any bad inside wheel spin after installing the hotchkis front bar. I know pgrmstr has the same set-up so I'm surprised to here that complaint from you. What kinda surface do yall usually run on?

Food for thought, heitkotter and beitzer both raw timed me in Cali... All the 370 nay Sayers out there need to worry more about those two guys rather then a new unknown car.

pretty sure 'junior' will be in the ASP vette for the big events, but drives Learic's Z occasionally locally. They were both up to Philly this past weekend for our annual 2 day charity event...

I don't see any slip light, or at least I don't notice, but I know the car is not applying any brake to that spinning wheel.....I assume your VDC is OFF when running?

We don't have concrete out here....but it does seem to be course grip related....On Sat, we were on one lot and everyone was complaining of push (use Z folks included) and we had tons of wheel spin. It was a technical course where you really had to give it up to get around cones, and coming out of corners...getting on the gas hard really lit up the inside wheel. On Sun, we were on a different lot with much more grip. The course was much more flowing....and with the additional grip, we didn't get the push we were seeing on Sat and the wheel spin was much less...

yeah, I noticed that......course dependent situation? Or are those guys that fast? Having run both the 350z and the GXP, how do the two compare on course?

Yes my VDC is off, but even with VDC off traction control can kick in if it sees a lot of wheel spin at the rear wheels. I only see it kick in if I get inside wheel spin, if both wheels spin then it doesn't kick in. Perhaps your stock VSLD is toasted and has turned into a peg leg? A few of the track guys have reported killing theirs. Mine still works but I haven't had any co-drivers.

Hmmmm.....perhaps I am staying under the "lots" of wheelspin threshold...as in the difference of rotation from one side to the other. If I get it, I will ease off slightly...but I can keep that 10% slip for quite awhile so I know the brakes aren't kicking in.

my LSD is fine, as I can induce both wheels to spin and drift the rear at will...my car only has 6,000 miles.....and only 4 auto events on it with a single driver

Sounds like your diff is okay then. My car also only has 6000 miles but closer to 20 events and so far seems to be holding up.

I only see the wheel slip light in certain corners that lighten the rear wheel, but it was definitely easy to reproduce on race tires especially on the first run. After the tires had some temperature it didn't seem to be as frequent.

They are THAT GOOD. I drove the wheels off the 350z last year and I wasn't even that close to Heitkotter last year at Nats. Given that the 370z is probably far superior to the 350z, I still think the car has a huge chance though. Without having driven it, I can't comment on to wether or not I feel it could be an overdog.

So the GXP vs Z comparo: The GXP feels nearly as quick as the Z, except the Z has much longer legs and I have to shift to third on nearly any autox course (we shift to third around 52 mph, top of 2nd isn't much higher, and the car makes way more power shifting to third rather then hitting redline in second). But other then that, the GXP can nearly hang with the Z in acceleration, due to its short gearing (which is also its downfall as stated before). Now in terms of handling, it's omg, this thing is ridiculously amazing compared to the Z. First off, the GXP has fully adjustable suspension along a wide range of adjustments. (factory camber, caster, and toe adjustable). We have the front at 3 degrees negative camber iirc, turn in is crisp, steady state cornering is on par with the Z (this is the Z's strong point, put me in a sweeper in the Z and I could kill most stock cars) and the ability to get on the throttle is slightly better then the Z's. Where it really kills the 350z is initial turn in, and in quick transitions and slaloms. The Z really shows its weakness when you need to quickly change direction, etc. It's due to it not having enough negative camber, and its slightly long wheelbase. Lastly it being slightly heavier then the GXP (2960 on the scales at Wendover iirc). And lastly, the stock diff in the GXP is amazing, where as the Z is ho-hum. They aren't on the same level in terms of autox, hence the reason the Z is classed lower. No doubt in my mind, I am way faster in the Solstice.

You must not be disabling it all the way, cuz every 350z I've driven that was VDC equipped, you could completely disable the VDC and TCS.

That's the "electronic" diff kicking in. Even with the vdc disabled this program keeps running and helps the crappy diff by applying brakes to spinning shells when the diff can't keep up.

Yep. Can't kill it completely without disabling the Bosch module under the center console.

On the way home from the blytheville tour. Coned both my fast runs on both days and ended up in 5th, codriver snagged the last trophy spot in 4th. Overall the car totally had enough speed to win but we both let it down again. The course was transition heavy with some good opportunities to use the power. There was a big turn around sweeper that was pretty much on the limiter the whole way round. First day it was left handed and ran it with 1/4 tank no problems. Second day it was a right turn and we had to keep more than 3/4 tank to prevent fuel cut.

All in all a good weekend and might be motivating us to get some ast's since were right there with the other cars, just need to stay off the damn cones and put some clean times down.

Good showing! You had some good raw times for sure on both days and could have been in the hunt. Had the NE Divisionals this past weekend, did ok on day 1, still left some good time out there, was standing in 1st by about .4 and then drove like crap on day 2.....and after working the 4th heat, I saw where I was slow compared to everyone else. I just wasn't pushing the car....driving the conservative approach and it cost me. Need to get it right for the contingency paying events just around the corner...

Looks like Adam did real well the previous week....although he was in a Pontiac, but will give him his cudos FTW! Nice drivin RUFF