245 vs 265 fronts

Joepro · 12-11-2013, 10:15 PM

I don't want to stray too far from the OP question but here is a crappy video that helps display my thoughts, it was quick and dirty, but I think it gets the point across, you can hear me grunting when I was pushing down on the bfg to flex the sidewall. I know this is not scientific, but I have mounted enough tires in my day to know the difference in sidewalls(that's what he said...sorry had to). Pardon my 2 cents and out shop music, that side of the shop is country the other is classic rock, its a constant battle...radio wars everyday...sigh.

Bananaz · 12-16-2013, 12:06 AM

So looks like my next tires will be 265s/285s on stock sport wheels? Car is driven daily

Rusty · 12-16-2013, 02:37 PM

Quote:

Originally Posted by Grindkiezer

275/305
Go big or go home!

275/35, 325/30.

Planning on going BIGGER

RumbleFish · 12-16-2013, 04:54 PM

Quote:

Originally Posted by m4a1mustang

I have 265/285 S-04s waiting for spring.

Joe, sorry about your PSS experience. I enjoyed them on my Mustang. Never had them on the Z. I hear the S-04 is a lot stiffer so I'm interested in seeing how they behave.

I'm thinking of going w/ these same sizes…I've got 20mm spacers all around and dropped 1" on Swift springs…any potential issue at these sizes?
Would they stick out too much? Rub?

265/40?…35? & 285/35?…30?

Hotrodz · 12-16-2013, 10:21 PM

I'm lowered on Teins and they drop a little more than Swifts with no issues of rubbing. I have 15mm spacers all around and the rears are pretty much even and the fronts are just within. I think you will be fine 285 rear and 265 front.

Limeybastard · 05-06-2014, 11:40 AM

Has anyone gone 235 up front? I used to always use narrower tires up front on a performance rwd car back in the past. Example my euro spec e36 bmw 3 stock was 225/45 front and 245/40 rear. 205 and 215 front would eliminate tramlining and made for a better turns.

kenchan · 05-06-2014, 11:52 AM

i think you'd probably run 275 up front for better turnability on tight tracks.

Chuck33079 · 05-06-2014, 11:55 AM

Quote:

Originally Posted by Limeybastard

Has anyone gone 235 up front? I used to always use narrower tires up front on a performance rwd car back in the past. Example my euro spec e36 bmw 3 stock was 225/45 front and 245/40 rear. 205 and 215 front would eliminate tramlining and made for a better turns.

That's going the wrong way. The car needs more front grip, not less. Unless you want to add more understeer for some strange reason.

cruzthepug · 05-06-2014, 12:33 PM

Quote:

Originally Posted by Limeybastard

Has anyone gone 235 up front? I used to always use narrower tires up front on a performance rwd car back in the past. Example my euro spec e36 bmw 3 stock was 225/45 front and 245/40 rear. 205 and 215 front would eliminate tramlining and made for a better turns.

I bought a used set of 18" stock wheels that came with 225/245 tires. I bought the wheels to use for autocross and ran these tires in my first event. Could always have used more grip, but they did fine, and since this is my first season I'm going to use up these tires before I buy more.

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Tazicon · 05-06-2014, 12:52 PM

Quote:

Originally Posted by TerribleONE

I love my PSS's on my Z.

I have them and love them.

Limeybastard · 05-06-2014, 04:09 PM

Quote:

Originally Posted by Chuck33079

That's going the wrong way. The car needs more front grip, not less. Unless you want to add more understeer for some strange reason.

Quote:

Originally Posted by Chuck33079

That's going the wrong way. The car needs more front grip, not less. Unless you want to add more understeer for some strange reason.

Hi Chuck, care to explain why the car needs more frontal grip?

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Chuck33079 · 05-06-2014, 04:38 PM

Quote:

Originally Posted by Limeybastard

Hi Chuck, care to explain why the car needs more frontal grip?

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Because it under steers out of the box.

cossie1600 · 05-06-2014, 04:40 PM

Car is 3500lbs, has large tires in the back and has tons of weight on the front with no camber. Of course you want giant front tires

kenchan · 05-06-2014, 05:09 PM

i think cossie you were running square setup?

Limeybastard · 05-06-2014, 05:46 PM

Quote:

Originally Posted by cossie1600

Car is 3500lbs, has large tires in the back and has tons of weight on the front with no camber. Of course you want giant front tires

Does the front have any positive camber out of the box ?

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12-11-2013, 10:15 PM	#31 (permalink)
Joepro A True Z Fanatic Join Date: Aug 2012 Location: Athens ohio Posts: 1,213 Drives: Company car Rep Power: 34	I don't want to stray too far from the OP question but here is a crappy video that helps display my thoughts, it was quick and dirty, but I think it gets the point across, you can hear me grunting when I was pushing down on the bfg to flex the sidewall. I know this is not scientific, but I have mounted enough tires in my day to know the difference in sidewalls(that's what he said...sorry had to). Pardon my 2 cents and out shop music, that side of the shop is country the other is classic rock, its a constant battle...radio wars everyday...sigh. __________________ Swift\|Koni\|SPC\| FI CBE\|Z1\|Stillen\|Sbend\|Zspeed\|R/T Tuned\|523 whp\|458 tq\|10.5 psi\|SOLD Joepro's Journal\|Joepro's Boosted Performance Build \|Pittsburgh-Western-Pa-Ohio-Wv-Group Last edited by Joepro; 12-11-2013 at 10:18 PM.

12-16-2013, 10:21 PM	#35 (permalink)
Hotrodz A True Z Fanatic Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684385	I'm lowered on Teins and they drop a little more than Swifts with no issues of rubbing. I have 15mm spacers all around and the rears are pretty much even and the fronts are just within. I think you will be fine 285 rear and 265 front. __________________ *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\|

05-06-2014, 04:40 PM	#43 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 30	Car is 3500lbs, has large tires in the back and has tons of weight on the front with no camber. Of course you want giant front tires Chuck33079 likes this.

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12-16-2013, 12:06 AM	#32 (permalink)
Bananaz Track Member Join Date: Dec 2013 Location: Central Jersey Posts: 637 Drives: 09 370z 6MT/B+Sport Rep Power: 13	So looks like my next tires will be 265s/285s on stock sport wheels? Car is driven daily

05-06-2014, 11:40 AM	#36 (permalink)
Limeybastard A True Z Fanatic Join Date: Apr 2014 Location: FL and London UK. Posts: 1,514 Drives: 2014 370Z Sport. Rep Power: 17	Has anyone gone 235 up front? I used to always use narrower tires up front on a performance rwd car back in the past. Example my euro spec e36 bmw 3 stock was 225/45 front and 245/40 rear. 205 and 215 front would eliminate tramlining and made for a better turns.

05-06-2014, 11:52 AM	#37 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	i think you'd probably run 275 up front for better turnability on tight tracks.

05-06-2014, 05:09 PM	#44 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	i think cossie you were running square setup?