Proper ride height for Track

martin82 · 12-27-2013, 03:36 PM

You will max out stock suspension fairly easily, took me about 5-7 track days to max out the car easily on stock shocks/springs and front and rear camber arms only w rs3 tires. Next was coilovers, diff, sway bar and dropped a lot of time there.

GSS138 · 12-27-2013, 03:41 PM

Quote:

Originally Posted by 03threefiftyz

Tires and a diff will make the single biggest impact on how the car handles and exits the corner.

Yeah that is kind of why I went the route of buying the Quaiffe diff first. Everything I read suggests that it is 1 of two things:
1. Not stiff enough springs
2. LSD.

I couldn't pass up the Xmas sale at Z1 lol. Got it for less than a grand. The OEM suspension all though not terrible by any means(for OEM it is quite good). Man it is way too bouncy. Scares the heck out of me at BRP from grapevine through club corner, and I feel I really limit myself at AAA and Big willow through the fastest parts, because once things start shaking, I back off. BRP the car hardly ever gets planted it seems with all the camber and elevation changes. Definitely need some faster springs as well.

martin82 · 12-27-2013, 03:57 PM

Right now it's lack of track suspension alignment=no front or rear camber arms

Mike · 12-27-2013, 04:02 PM

my Tein monoflex are 783 front and rear. Both Mike Skeen and Brian Kleeman loved the way my car handles when they drove it.

03threefiftyz · 12-27-2013, 05:42 PM

That has to be a real coilover in the rear at that size?

martin82 · 12-27-2013, 05:44 PM

that's correct, its on my JRZ RS pro, I didn't install the rear springs yet

GSS138 · 12-27-2013, 06:45 PM

Mike on a scale of 1-10 1 being "perfectly drivable on street", 10 being "absolutely no f-ing way am I driving this thing to work". How would you rate your car for daily driver use, based on just the springs and ride quality-ignore everything else.

ENT-Z · 12-27-2013, 10:22 PM

Quote:

Originally Posted by Mike

my Tein monoflex are 783 front and rear. Both Mike Skeen and Brian Kleeman loved the way my car handles when they drove it.

Glad to hear. My car is going in tomorrow to have the Tein Monoflex installed (with EDFC Active) and a bunch of SPL goodies. Looking forward to the start of the track season!

clintfocus · 12-28-2013, 12:14 AM

interesting input in this tread :P

synolimit · 12-28-2013, 04:37 AM

Quote:

Originally Posted by SPOHN

That might be to stiff for our rear. Lol. Anyways due to the nature of are cars being tail happy a little softer is really needed. I'm seeing where some are removing the sway bar completely after a good Coilovers setup

I meant that for an OEM setup. What would 15-16k be? 8-9k in a true?

synolimit · 12-28-2013, 04:42 AM

Quote:

Originally Posted by martin82

Even with stock vlsd, still manage fast laps, yes the diff is huge. Tires for us not so much in SoCal we run rs3 mostly and a few on Td's we don't run Hoosiers like NorCal or other areas.

Here are my rear spring dimensions that was asked prior 8"x2.25"x 450lbs

Doran said he hits 300* diff temps within 3 laps. Say the OEM VLSD never hit 250*. Is it possible it won't become sh*t from over heating? Just finished my diff cooler and can get the temp to drop 40*.

synolimit · 12-28-2013, 04:45 AM

Quote:

Originally Posted by GSS138

Yeah that is kind of why I went the route of buying the Quaiffe diff first. Everything I read suggests that it is 1 of two things:
1. Not stiff enough springs
2. LSD.

I couldn't pass up the Xmas sale at Z1 lol. Got it for less than a grand. The OEM suspension all though not terrible by any means(for OEM it is quite good). Man it is way too bouncy. Scares the heck out of me at BRP from grapevine through club corner, and I feel I really limit myself at AAA and Big willow through the fastest parts, because once things start shaking, I back off. BRP the car hardly ever gets planted it seems with all the camber and elevation changes. Definitely need some faster springs as well.

Agree. Stock wants to bounce over little bumps and then "float" to the outside. Very scary! Can't wait to finish and get this bitch planted!

03threefiftyz · 12-28-2013, 06:15 AM

Quote:

Originally Posted by GSS138

Mike on a scale of 1-10 1 being "perfectly drivable on street", 10 being "absolutely no f-ing way am I driving this thing to work". How would you rate your car for daily driver use, based on just the springs and ride quality-ignore everything else.

As a Mike also, 9.5. No radio, AC, delrin bushings, etc...

...there is a reason my car has no tags.

Mike · 12-28-2013, 01:03 PM

Quote:

Originally Posted by 03threefiftyz

As a Mike also, 9.5. No radio, AC, delrin bushings, etc...

...there is a reason my car has no tags.

mine also. I don't remember the last time I drove it on the street, as its been over two years, but I do remember it wasn't bad at all.

SPOHN · 12-28-2013, 04:25 PM

Took mine off the street also. The aggressive alignment I'll be running is track only. Car is being setup up for the best turn in possible. I'm going full out.

12-27-2013, 04:02 PM	#79 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	my Tein monoflex are 783 front and rear. Both Mike Skeen and Brian Kleeman loved the way my car handles when they drove it. ENT-Z likes this. __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

12-27-2013, 06:45 PM	#82 (permalink)
GSS138 Track Member Join Date: Mar 2013 Location: Mission Viejo, CA Posts: 769 Drives: '12 370Z 6M Sport Rep Power: 13	Mike on a scale of 1-10 1 being "perfectly drivable on street", 10 being "absolutely no f-ing way am I driving this thing to work". How would you rate your car for daily driver use, based on just the springs and ride quality-ignore everything else. __________________ Current Mods: Vorpal Weapon +5.

12-28-2013, 04:25 PM	#90 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 45 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	Took mine off the street also. The aggressive alignment I'll be running is track only. Car is being setup up for the best turn in possible. I'm going full out. RN SHARK likes this. __________________

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12-27-2013, 03:36 PM	#76 (permalink)
martin82 A True Z Fanatic Join Date: Nov 2011 Location: los angeles Posts: 2,636 Drives: 12 Nissan 370Z MB M6 Rep Power: 20	You will max out stock suspension fairly easily, took me about 5-7 track days to max out the car easily on stock shocks/springs and front and rear camber arms only w rs3 tires. Next was coilovers, diff, sway bar and dropped a lot of time there.

12-27-2013, 03:57 PM	#78 (permalink)
martin82 A True Z Fanatic Join Date: Nov 2011 Location: los angeles Posts: 2,636 Drives: 12 Nissan 370Z MB M6 Rep Power: 20	Right now it's lack of track suspension alignment=no front or rear camber arms

12-27-2013, 05:42 PM	#80 (permalink)
03threefiftyz Track Member Join Date: Apr 2010 Location: MD Posts: 536 Drives: 03 350z 6mt Rep Power: 16	That has to be a real coilover in the rear at that size?

12-27-2013, 05:44 PM	#81 (permalink)
martin82 A True Z Fanatic Join Date: Nov 2011 Location: los angeles Posts: 2,636 Drives: 12 Nissan 370Z MB M6 Rep Power: 20	that's correct, its on my JRZ RS pro, I didn't install the rear springs yet

12-28-2013, 12:14 AM	#84 (permalink)
clintfocus Track Member Join Date: Jan 2011 Location: los angeles Age: 38 Posts: 933 Drives: 370z, EK Civic, F150 Rep Power: 15	interesting input in this tread :P