Z NISMO discoveries

[PDX_Racer]

I thought I'd start this thread with my discoveries I've made about my Z NISMO:

• My 2024 Z NISMO was 3635 across the "official" SCCA scales with ⅜ tank of fuel, and without removing any of the carpets, subwoofer, and rear foam.
• When in SPORT+ mode starting in Auto shifting mode, shifting using the paddles with switch the car to manual mode, and will remain in that mode until the car stops.
• Launch mode will engage even though I'm not in SPORT+ mode, but you really don't want to do that.
• My current alignment is the stock alignment with zero front toe. It totally transforms the car and makes the car very confidence-inspiring.
• Tires are Bridgestone RE-71RS, sizes 285/35R19 front, 305/30R19 rear. Best tire pressures-so far-seem to be 31-32 PSI all the way around.
• I use an AutoSport Labs RaceCapture/Track MK3 for data acquisition, and while I can capture data from the Z, I haven't been able to get access to steering angle and brake pressure. I suspect that the data is on the CAN bus, but not on the OBD-II/CAN bus.
• I have built an Arduino-based CAN bus sniffer, but I've not yet been able to see steering angle or braking data-but I'm more likely to believe it's something I've not yet checked.
• Using Launch Control on a ProSolo is really required, but I haven't yet figured out the best timing on the lights to get into the 0.600-0.800 start range.

So, hopefully this helps others-and maybe someone can help me find the steering angle and brake pressure data on the Z.

 

[Intrepid Z]

How are the tyre sizes? Any rubbing, stock suspension? Do you have pictures?

 

[chadgigachad]

Do you prefer the Bridgestones to the Dunlops? Tread on my tires is getting low after 2 track days + ~6k miles. Might have a few thousand miles left.

 

[staying_tuned]

Dayum, we should start a donation fund-me for you to keep logging/posting data trying different hardware/software. Ive got a perf./manual and admittedly haven’t reached a place where I could harness, and put into practical application on track, half of what you’ve already shared and I’d still be down to throw in.

 

[PDX_Racer]

Updates after the Lincoln ProSolo/National Tour over the Memorial Day weekend:

• I've written a letter to SCCA (#38493) to officially permit removal of the subwoofer, plastic spacer under the subwoofer, and the styrofoam surround. I can argue that 13.2.K allows for that, but it's good to get a clear response since there were a few other competitors looked sideways at the fact that the Z looks gutted with nothing in the back.
• I figured out the Launch Control during ProSolo practice starts. Start on the third light gave me reasonable reaction times, and pretty consistent 2.0s 60-foot times.
• Right now, the desirable tires for SCCA Solo are the Vitour P1s (except when it's wet), Bridgestone RE-71RS, Yokohama ADVAN A052, with the Falken Azenis RT660+ being a few ticks behind. No problems with rubbing, but I do kind of wish I could go 295F/315R-but those sizes are very difficult to find, so 285/305 it is for now. On the Dunlops, the best I could get was 1.2G, with the Bridgestones can get to 1.5G (according to the car).
• I'm wondering if Nissan has two different CAN bus connections-and my RaceCapture/Track isn't connected to the "right" connection. I'm updating my CAN sniffer to find out.
• Don't leave my data acquisition connected to the car. This is twice I've done that, and trying to get my booster connected to the battery while I can't open my hood all of the way is a real two-person job. Probably an issue with the RaceCapture box.
• I really need to work on breaking some bad autocross habits I picked up with the BRZ, but the Z is a blast to drive.

And here's the obligatory "race car" picture from Lincoln:

 

[FSUZ33]

Great stuff!
Based on a week of driving to and from work, I feel like my wheels would be covered in a 1/4” thick film of brake dust after a track day. Don't get off line and caught in all the brake dust marbles I‘d be slinging.

 

[PDX_Racer]

This weekend's event might be wet, if so I'm going to see just how far Nissan's VDC has come-and see how intrusive it might (not!) be.

 

[MCN1SMO]

This weekend's event might be wet, if so I'm going to see just how far Nissan's VDC has come-and see how intrusive it might (not!) be.

In the wet on track it's very intrusive cuts power a lot

 

[PDX_Racer]

That would be disappointing. My 350Z was pretty much un-drivable in the wet with it off, I was hoping they had advanced their tech in 19 years.

But then again, in the wet even a Yugo has too much power.

 

[MCN1SMO]

I only did a small figure 8 course in standing water but I felt a lot of power cut often. I did it with traction off and it was a hand full but better than the power cut. If I was on a higher speed more open track on that situation I would probably leave it on and deal with the power cut. Might not be as bad with light rain my one experience was in pretty heavy rain