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Nissan 370Z Forum (http://www.the370z.com/)
-   Track / Autocross / Drifting / Dragstrip (http://www.the370z.com/track-autocross-drifting-dragstrip/)
-   -   Track Day Chat (http://www.the370z.com/track-autocross-drifting-dragstrip/130866-track-day-chat.html)

DarkJak 07-31-2020 06:33 PM
I put a g37x rear sway on. Testing coming next week to see if I like it at the track.

thekinn 08-01-2020 07:02 AM
I drive a 350z, but I think that I'm kind of experiencing the same thing. I've tried disconnecting the rear sway bar and didn't really care for it. Trying to think of a way to give the OEM bar less stiffness.

Rusty 08-01-2020 11:48 AM
Up-date article on the new Shell helmet standards. :tup:

https://www.pegasusautoracing.com/do...paign=202008-1

AlWakRa 08-02-2020 03:32 PM
Quote:
Originally Posted by Eagle (Post 3951638)
So with the OEM suspension the spring rates and rebound/damping are soft enough to allow the rear suspension to transition smoothly over bumps and undulations in the road while under load. So you can keep the stock rear bar and everything works fine.

When you change to coil overs with higher spring rates and stiffer rebound/damping and keep the rear bar, it doesn't translate very well over the road at speed anymore. It sort of skips around and causes the rear end to snap.

So an easy way to combat that is to soften the rear bar to your comfort, but in general the bar gets disconnected or removed because even the stock bar introduces too much snap oversteer, which you then have to try and dial out with your coilovers. Which is why i've never mounted my Hotchkis rear sway bar to this day. If you do a little research on the forum here, you'll find similar feedback from other fairly experienced drivers.

It's easier to remove the snap oversteer and then control that rotation with refined adjustments to the coilovers by increasing the stiffness one click at a time.

To illustrate, this is what it looks like with coilovers set to full soft settings, hotchkis front bar installed and the OEM rear sway bar on.

In the end it really all comes down to preference, this was excessive rotation for me so I changed my setup accordingly.

http://www.youtube.com/watch?v=i6yrgu1rYL0

Reminds me when I have a messed up alignment at the back, with around -3 camber and nearly 0.4 toe in at the back. It wasn't kind even to smooth inputs :eek:

OptionZero 08-02-2020 03:51 PM
Quote:
Originally Posted by Eagle (Post 3951638)
So with the OEM suspension the spring rates and rebound/damping are soft enough to allow the rear suspension to transition smoothly over bumps and undulations in the road while under load. So you can keep the stock rear bar and everything works fine.

When you change to coil overs with higher spring rates and stiffer rebound/damping and keep the rear bar, it doesn't translate very well over the road at speed anymore. It sort of skips around and causes the rear end to snap.

So an easy way to combat that is to soften the rear bar to your comfort, but in general the bar gets disconnected or removed because even the stock bar introduces too much snap oversteer, which you then have to try and dial out with your coilovers. Which is why i've never mounted my Hotchkis rear sway bar to this day. If you do a little research on the forum here, you'll find similar feedback from other fairly experienced drivers.

It's easier to remove the snap oversteer and then control that rotation with refined adjustments to the coilovers by increasing the stiffness one click at a time.

To illustrate, this is what it looks like with coilovers set to full soft settings, hotchkis front bar installed and the OEM rear sway bar on.

In the end it really all comes down to preference, this was excessive rotation for me so I changed my setup accordingly.

http://www.youtube.com/watch?v=i6yrgu1rYL0

Counterpoint:
It probably looked COOL AS HELL from outside

alanyluan 08-03-2020 08:08 PM
New track junkie here. I've read the brief notes on checks/inspections post track-day on the Track Day Best Practices thread. But I'm just curious what other kinds of checks/maintenance you guys like to do post track-day to make sure everything is still in working order. Mods include oil cooler, SS brake lines, XP10/8, coilovers/arms.

Thanks!

Rusty 08-03-2020 08:32 PM
Quote:
Originally Posted by alanyluan (Post 3952327)
New track junkie here. I've read the brief notes on checks/inspections post track-day on the Track Day Best Practices thread. But I'm just curious what other kinds of checks/maintenance you guys like to do post track-day to make sure everything is still in working order. Mods include oil cooler, SS brake lines, XP10/8, coilovers/arms.

Thanks!
After a trackday. I inspect all fluids, brake pads and rotors. Eyeball the tires really good. Look for any damages. I have bent my Zspeed undertray a few times from hitting curbs. Depending on mileage. I may change some fluids if they start looking different. Change the pads if they are worn down to about 30% left.

thekinn 08-04-2020 06:59 AM
I drive my car to and from the track.. if it still goes and stops after track day, I'm good to go. Then the cycle starts over again before the next track day. :)

2011 Nismo#91 08-04-2020 07:24 AM
Just give the car a once over, if everything looks and sounds normal then it should be fine. If I am feeling extra anal I would check hoses and under body for lose fittings and bolts, especially in the suspension area.

Hotrodz 08-04-2020 11:14 AM
I generally just look for immediate leaks and if none she goes on the trailer and back in the garage she goes. I give it a few days and then I look for leaks since everything has settled. If nothing then we move pre-track day check list.

Sent from my SM-G965U using Tapatalk

alanyluan 08-04-2020 12:13 PM
Well... it sure didn't take long to come across my first finding. I guess you could say that was a successful post track day inspection.

http://www.the370z.com/members/alany...re105108-1.jpg

bpchaos 08-04-2020 03:05 PM
Quote:
Originally Posted by thekinn (Post 3952399)
I drive my car to and from the track.. if it still goes and stops after track day, I'm good to go. Then the cycle starts over again before the next track day. :)
Yeah, I typically drive a few hours to and from the track. If it makes it home and starts the next day without funny noises I count it as a success.

If it's your only car or a car you use regularly, mostly just consumables checks like the others suggest.

///maestro 08-10-2020 08:47 AM
soooooooooo - went to @madwi's house this past weekend, installed my coolerworx shifter & poly trans mounts. Car feels amazing! EXCEPT....my idling oil pressure dropped to about 5psi. :shakes head: (obviously not because of the shifter install, but just only noticed it drop that day).

Needless to say, I ordered the EPS gallery gasket kit, timing chain tensioner, & timing cover gasket set. Looks like I'll be tackling the gallery gaskets next weekend along with solid engine mounts & a baffled oil pan. WISH ME LUCK :roflpuke2:

Rusty 08-10-2020 08:54 AM
Quote:
Originally Posted by alanyluan (Post 3952427)
Well... it sure didn't take long to come across my first finding. I guess you could say that was a successful post track day inspection.

http://www.the370z.com/members/alany...re105108-1.jpg
I had a friend find a 6" long nail in his tire after a track day. :icon14: Picked it up on the track. :icon14:

Wigjiggy 08-10-2020 10:07 AM
Quote:
Originally Posted by alanyluan (Post 3952327)
New track junkie here. I've read the brief notes on checks/inspections post track-day on the Track Day Best Practices thread. But I'm just curious what other kinds of checks/maintenance you guys like to do post track-day to make sure everything is still in working order. Mods include oil cooler, SS brake lines, XP10/8, coilovers/arms.

Thanks!
I paint-pen most of my major components and check them out after every event. That way you know exactly what’s loosening up on you. I run primarily at Sebring, which is a very rough track, so nuts/bolts loosening up is a reality. Given some recent slippage and very low torque specs on my calipers, I actually check those paint-pens mid-day during each event. May be overkill, but makes me feel better.

///maestro 11-04-2020 11:29 AM
Today I installed the bellworks rear diff brace & removed my rear swaybar. Been running stock rear sway for the past 2 years, let's see what all the hype's about with no swaybar.

EDIT:

Also installed SPL FUCAs. Finally, some more negative camber. Going to shoot for -3 to -3.5 up front.

Sharad909 11-16-2020 09:33 PM
Hey Guys. I am still new with my Z. I've had a total of 4 track days this year and with the Z.
I am finally getting FUCA and rear camber arms, as well as Toe lockout kit. After going with Swifts, my alignment has been Bonkers!
FYI, I am not a fan of Swift... Im sure I am the only Z owner that has said this... lol

Sharad909 11-16-2020 09:46 PM
Quote:
Originally Posted by ///maestro (Post 3969333)
Today I installed the bellworks rear diff brace & removed my rear swaybar. Been running stock rear sway for the past 2 years, let's see what all the hype's about with no swaybar.

EDIT:

Also installed SPL FUCAs. Finally, some more negative camber. Going to shoot for -3 to -3.5 up front.
Let us know how you like the rear sway bar delete..?? And the bell mount!

I hear mixed reviews of keeping the sways or removing it.

Elmo370z 11-17-2020 12:06 AM
Quote:
Originally Posted by Sharad909 (Post 3971538)
Hey Guys. I am still new with my Z. I've had a total of 4 track days this year and with the Z.
I am finally getting FUCA and rear camber arms, as well as Toe lockout kit. After going with Swifts, my alignment has been Bonkers!
FYI, I am not a fan of Swift... Im sure I am the only Z owner that has said this... lol
Swifts are great, no complaints with them on the track. I suggest getting more seats time with the oem parts before changing them. You can be surprised on how quick the car can be.

///maestro 11-18-2020 11:27 AM
Quote:
Originally Posted by Sharad909 (Post 3971540)
Let us know how you like the rear sway bar delete..?? And the bell mount!

I hear mixed reviews of keeping the sways or removing it.
I've had about 4 track days with the stock rear sway. Car was definitely tail-end happy. Hopefully with a more aggressive alignment and no rear sway, I can keep the rear planted.

On a lighter note, I'm looking to potentially pick up some new Fortune Auto coilovers for next years season. Anyone have recommendations for spring rates? This would be for a track-only car...don't care about daily drivability.

Sharad909 11-22-2020 11:20 PM
Quote:
Originally Posted by Elmo370z (Post 3971575)
Swifts are great, no complaints with them on the track. I suggest getting more seats time with the oem parts before changing them. You can be surprised on how quick the car can be.
Sadly, I agree with you. I messed up by looking at lowered Zs. They just look good!. Now, because of springs, I'm getting all these arms lol. I mean I eventually needed them so it's okay.

Sharad909 11-22-2020 11:24 PM
Quote:
Originally Posted by ///maestro (Post 3971833)
I've had about 4 track days with the stock rear sway. Car was definitely tail-end happy. Hopefully with a more aggressive alignment and no rear sway, I can keep the rear planted.

On a lighter note, I'm looking to potentially pick up some new Fortune Auto coilovers for next years season. Anyone have recommendations for spring rates? This would be for a track-only car...don't care about daily drivability.
Yeah I was having the same issues. Of course seat time is good for me but I also didnt want to drift.
Also, are you planning on true or OEM rear coils? If so what's your reasoning?

///maestro 11-22-2020 11:34 PM
Quote:
Originally Posted by Sharad909 (Post 3972687)
Yeah I was having the same issues. Of course seat time is good for me but I also didnt want to drift.
Also, are you planning on true or OEM rear coils? If so what's your reasoning?
Not sure yet to be honest. Have to see what the benefits are, if any. Fortune auto offers both options.

Hotrodz 11-23-2020 10:25 AM
Quote:
Originally Posted by ///maestro (Post 3972688)
Not sure yet to be honest. Have to see what the benefits are, if any. Fortune auto offers both options.
Fortunate Auto can provide you with either setup. If you go with true type make sure you get the correct spring rates. FA tends to over spring the rear springs for true type set up.

Sent from my SM-G965U using Tapatalk

Sharad909 11-23-2020 05:02 PM
Quote:
Originally Posted by ///maestro (Post 3972688)
Not sure yet to be honest. Have to see what the benefits are, if any. Fortune auto offers both options.

They do have a sale for Black Friday :happydance:

Sharad909 11-23-2020 05:06 PM
So a side question: is it even worth it to get a full set of sway bars? Since many tend to go softer in the rear.

Spooler 11-23-2020 05:24 PM
Quote:
Originally Posted by Sharad909 (Post 3972753)
So a side question: is it even worth it to get a full set of sway bars? Since many tend to go softer in the rear.
No, just get the Hotchkis front bar unless you are running big old 345's on the rear with 12in wheels.

Rusty 11-23-2020 05:30 PM
Quote:
Originally Posted by Spooler (Post 3972756)
No, just get the Hotchkis front bar unless you are running big old 345's on the rear with 12in wheels.
:iagree:

:D

Hotrodz 11-23-2020 06:26 PM
Quote:
Originally Posted by ///maestro (Post 3971833)
I've had about 4 track days with the stock rear sway. Car was definitely tail-end happy. Hopefully with a more aggressive alignment and no rear sway, I can keep the rear planted.



On a lighter note, I'm looking to potentially pick up some new Fortune Auto coilovers for next years season. Anyone have recommendations for spring rates? This would be for a track-only car...don't care about daily drivability.
This is not most people's experience with the Z with a straight OEM setup. The Z tends to push or under steer with staggered wheel setup. It could be your alignment but I am more inclined to think it is your steering input without a video that shows your driving input.

Get a good alignment and let your instructor or someone with lots of experience drive your car and get some feedback from them.

Sent from my SM-G965U using Tapatalk

Sharad909 11-23-2020 08:55 PM
Quote:
Originally Posted by Spooler (Post 3972756)
No, just get the Hotchkis front bar unless you are running big old 345's on the rear with 12in wheels.
Haha geez... not any time soon. Thanks :tiphat:

///maestro 11-26-2020 11:02 AM
Quote:
Originally Posted by Hotrodz (Post 3972773)
This is not most people's experience with the Z with a straight OEM setup. The Z tends to push or under steer with staggered wheel setup. It could be your alignment but I am more inclined to think it is your steering input without a video that shows your driving input.

Get a good alignment and let your instructor or someone with lots of experience drive your car and get some feedback from them.

Sent from my SM-G965U using Tapatalk
Part of the issue is definitely my alignment. Not as aggressive as I want it. I’m bringing my rear sway to my next even and will try a few laps with and without it to see which I like more.


Also - I wanted to see if anyone had any experience with Fortune auto, powertrix, or reinharte on the track?

JARblue 11-26-2020 11:35 AM
I went with the FAs after a lot of research.

Hotrodz 11-26-2020 12:34 PM
I run FAs true type.

Sent from my SM-G965U using Tapatalk

///maestro 11-30-2020 01:07 PM
Quote:
Originally Posted by JARblue (Post 3973231)
I went with the FAs after a lot of research.
Quote:
Originally Posted by Hotrodz (Post 3973244)
I run FAs true type.

Sent from my SM-G965U using Tapatalk
I picked up some Fortune Auto's for black friday! :happydance:

Also purchased a detailed motorsport course to dial in the suspension properly. Being a car enthusiast with some mechanical knowledge, I haven't really found a detailed way of learning motorsport best practices including how to properly setup your car...only thing I've done in the past is ask friends or check forums, which is usually subjective.

justin_boy 11-30-2020 03:45 PM
about 7k miles and 1 track day with my brake pads (stock akebonos) am i good for another track day?

Hotrodz 11-30-2020 04:18 PM
Quote:
Originally Posted by justin_boy (Post 3973974)
about 7k miles and 1 track day with my brake pads (stock akebonos) am i good for another track day?
Depends on how much pad you have left and if they have deformed or not. There should be wear bars on the pad that will indicate if you have a safe amount of pads left. I wouldn't go lower than eighth of inch of good pad.

Sent from my SM-G965U using Tapatalk

Jmatchley86 11-30-2020 08:01 PM
Check your pads after each event, its literally the one thing you can't have wear out! As soon as my pads get to 6mm or less its time for new ones.

Maestro666 11-30-2020 08:02 PM
Quote:
Originally Posted by justin_boy (Post 3973974)
about 7k miles and 1 track day with my brake pads (stock akebonos) am i good for another track day?
The stock pads seem to be good for the life of the car. I changed mine out at 60k and they still had the same amount of meat as the ones I replaced them with.

justin_boy 12-01-2020 03:56 AM
Quote:
Originally Posted by Hotrodz (Post 3973978)
Depends on how much pad you have left and if they have deformed or not. There should be wear bars on the pad that will indicate if you have a safe amount of pads left. I wouldn't go lower than eighth of inch of good pad.

Sent from my SM-G965U using Tapatalk
sweet ill check....thank you

justin_boy 12-01-2020 03:57 AM
Quote:
Originally Posted by Maestro666 (Post 3974008)
The stock pads seem to be good for the life of the car. I changed mine out at 60k and they still had the same amount of meat as the ones I replaced them with.
they're pretty solid but they seem to fade after a little bit of hard driving. I think i'm going to get endless pads next


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