Track Setup on Base 18's?

JWillis72 · 02-03-2015, 03:15 PM

I used stock size tires for the first set on the track and used BFG G-Force comp 2s and was very happy with them. If tracking is new to you watch your tire temps, I let mine get to high at first and it ate them up.

If you want to spend a little more I really like the RE-11s that are on it now.

zhopa · 02-03-2015, 06:52 PM

Quote:

Originally Posted by osbornsm

my track setup for the base 18's is:

Front: 245/45/18
Rear: 274/40/18

Sumitomo has tires in this size for $600 SHIPPED, but they squeal a lot and don't have the highest traction. They DO however last quite a long time.

Quote:

Originally Posted by JWillis72

I used stock size tires for the first set on the track and used BFG G-Force comp 2s and was very happy with them. If tracking is new to you watch your tire temps, I let mine get to high at first and it ate them up.

If you want to spend a little more I really like the RE-11s that are on it now.

Thanks for the input guys! Osborn does the staggered setup make for really bad understeer?

cruzthepug · 02-04-2015, 06:17 AM

Not track, but I used base 18" wheels to autocross last season.

245/40/18
275/35/18

Not sure if I would go much wider than 245 on the 8" front, might go 255 but that's about it.

osbornsm · 02-04-2015, 12:41 PM

Quote:

Originally Posted by zhopa

Thanks for the input guys! Osborn does the staggered setup make for really bad understeer?

Heya there.... staggered (OEM size) does NOT lead to understeer. At least from what my butt-dyno says. I mean who wouldn't appreciate more front end grip... but clearance becomes an issue quickly.

Generally speaking, under/over steer is more readily controlled with anti-roll bars, more so than tire sizing.

Not to say that you can't modulate the car w different size tires... but i don't recall many of us having a tire sponsor... or lap times... which would be effected by the changes you speak of.

Zauskycop · 02-09-2015, 07:52 AM

I hate to disagree, but yes, staggered tires do CONTRIBUTE to understeer. They of themselves will not CAUSE it, but given two cars which are identical, one square, and one staggered...the staggered one will tend to have more understeer.

I agree with the second part of the statement though...

Tracy Ramsey

Quote:

Originally Posted by osbornsm

Heya there.... staggered (OEM size) does NOT lead to understeer. At least from what my butt-dyno says. I mean who wouldn't appreciate more front end grip... but clearance becomes an issue quickly.

Generally speaking, under/over steer is more readily controlled with anti-roll bars, more so than tire sizing.

02-04-2015, 06:17 AM	#3 (permalink)
cruzthepug Base Member Join Date: Feb 2014 Location: Huntsville, AL Posts: 245 Drives: 2014 370Z Touring Rep Power: 13	Not track, but I used base 18" wheels to autocross last season. 245/40/18 275/35/18 Not sure if I would go much wider than 245 on the 8" front, might go 255 but that's about it. __________________ Ark Performance / Eibach / Forgestar (CF10's Daily, F14's Race)/ Project Kics / K&N / Z1 / TWM Performance / RJM Performance / Koni / Hawk Performance

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02-03-2015, 03:15 PM	#1 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 46	I used stock size tires for the first set on the track and used BFG G-Force comp 2s and was very happy with them. If tracking is new to you watch your tire temps, I let mine get to high at first and it ate them up. If you want to spend a little more I really like the RE-11s that are on it now.