Track Alignment

Hotrodz · 06-17-2019, 10:35 PM

I run wide tires 315 square -3.3 front and -2.0 rear all with a tad toe. Caster is 6. If you are not doing tire temp in the hot pit after the tire is up to temp then forget about it. Play with your tire pressures. It is the easiest and most consistent way to adjust to conditions for those of us that don't have team of folks to help us and is still a what the big teams do. Once they have temps were they want them they play with tire pressure to dial it in.

AlWakRa · 06-18-2019, 04:08 AM

Quote:

Originally Posted by Rusty

People don't realize this when they lower the rear. The rear camber curve is not linear.

I wish only camber curve, even toe adjustment range change with your camber value, less camber means higher toe in range to play with, due to its multi-link suspension design.

Quote:

Originally Posted by Mn23

Yes I am planning to raise the height a bit as it is quite low. My spring rates are quite stiff at 20k front and 18k rear. Should I set the rears height a bit higher than the fronts?

My rear slicks were somehow sliding a lot at the last track day, I thought the tires were done. My rear toe is at 0.07

Your toe looks alright, suspension stiffness wouldn't have any issue, I run 21kg front and 7kg rear truetype (don't know the exact equivalent for divorced but should be in the range of 14-18kg) and it tends to understeer with equal height, I need to get my rear higher to get more balanced setup.

Maybe your assumption is right, old tires, as slicks performance depends a lot on heat cycles and storage. With re71r, you should be good with the alignment mentioned before.

OptionZero · 06-18-2019, 05:16 PM

Quote:

Originally Posted by Hotrodz

I run wide tires 315 square -3.3 front and -2.0 rear all with a tad toe. Caster is 6. If you are not doing tire temp in the hot pit after the tire is up to temp then forget about it. Play with your tire pressures. It is the easiest and most consistent way to adjust to conditions for those of us that don't have team of folks to help us and is still a what the big teams do. Once they have temps were they want them they play with tire pressure to dial it in.

how the **** is a 315 front on a 18x11 +16 not destroying your fender under compression?

gomer_110 · 06-18-2019, 05:31 PM

Quote:

Originally Posted by OptionZero

how the **** is a 315 front on a 18x11 +16 not destroying your fender under compression?

As someone else who has run 315's up front, all I can say is it just works. As long as you don't slam the car and make sure the upright to wheel/tire clearance is minimal, you'll be fine.

Now if you want to get real crazy, you can run 335 on 18x12's square like I do. With that said, you're not fitting the 335's under the factory fenders up front.

Hotrodz · 06-18-2019, 07:13 PM

Quote:

Originally Posted by gomer_110

As someone else who has run 315's up front, all I can say is it just works. As long as you don't slam the car and make sure the upright to wheel/tire clearance is minimal, you'll be fine.

Now if you want to get real crazy, you can run 335 on 18x12's square like I do. With that said, you're not fitting the 335's under the factory fenders up front.

Mine poke about a half inch up front as well. I have been thinking of going with a 18x12 rear and 18x11 front and run 335 and 315 setup!

Hotrodz · 06-18-2019, 07:07 PM

Quote:

Originally Posted by OptionZero

how the **** is a 315 front on a 18x11 +16 not destroying your fender under compression?

LMAO, as gomer said it just works! My off set is actually +18, not much of a difference I know. I have yet to have them rub even in a full spin or going over humps. My compression on the coils are set to full stiff as well for the track. I also run a set of Einke 18x10.5 +30 with 15mm spacers in the rear. I have not run anything more than a 295 on them but I think they would be fine with a 315 as well. When I got the first set of two 18x11s they had 305 40 Nittos on them and I test fitted them on the front and believe it or not they did not rub lock to lock. I was very surprised and excited so I ordered the other two and never looked back.

06-17-2019, 10:35 PM	#1 (permalink)
Hotrodz A True Z Fanatic Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684386	I run wide tires 315 square -3.3 front and -2.0 rear all with a tad toe. Caster is 6. If you are not doing tire temp in the hot pit after the tire is up to temp then forget about it. Play with your tire pressures. It is the easiest and most consistent way to adjust to conditions for those of us that don't have team of folks to help us and is still a what the big teams do. Once they have temps were they want them they play with tire pressure to dial it in. AlWakRa, Rusty, Spooler and 1 others like this. __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

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