Wider tires on sport rims?

schrute · 11-29-2009, 01:33 AM

I have 295's on a 10" rim and wouldn't go any wider personally.

Just checked Hankook's size chart and in 19" you could go 255/35 Front and 295/30 Rear which have the same overall diameter front and rear (26.0) but are a bit shorter than stock. Differences with the shorter tires would of course be ride height (car would sit about .3" lower) and a little quicker off the line, with a corresponding loss (marginal) at the top end. You would also gain a little understeer with a 40mm stagger (difference between front and rear), likely not a big deal anywhere outside of the track (especially considering the Nismo has a 40mm stagger stock). Sways would make a big difference here.

Closer to stock diameter you could go 255/40 Front and 285/35 Rear (don't see a 295/35 listed), which are close enough to each other in overall diameter (within .2") but just slightly taller than stock.

Personally I'd go with the 255/35, 295/30 option, especially if you plan to add sways.

Minicobra1 · 11-29-2009, 12:39 PM

I'm running the Hankook V12's 305/30/19 Rear 255/35/19 fronts. The rear tire has a slight squeeze, but not too bad IMO. A 295 would be more Ideal for a 10 rim. I'm planning on changing to 10.5 rim very soon, so thats was why I went with the 305.
Overall the car feels very good, great tire for the money.

I'm running the Eibach springs with 15mm frt & 20mm rear wheel spacers. No rubbing issues on the fenders what so ever. However since these tires are slightly smaller in height I have notice that my front wheel air diffusers and chin spoiler scrape more often on driveways and large bumps. I was hoping to go with coil overs and lessen the wheel gap by about 1/2 inch more, but now I'm re-thinking that. I would definitely have to remove the chin and wheel deflectors if I did that, I'm actually considering taking them off now.

ZForce · 12-02-2009, 01:51 PM

Quote:

Originally Posted by Minicobra1

I'm running the Hankook V12's 305/30/19 Rear 255/35/19 fronts. The rear tire has a slight squeeze, but not too bad IMO. A 295 would be more Ideal for a 10 rim. I'm planning on changing to 10.5 rim very soon, so thats was why I went with the 305.
Overall the car feels very good, great tire for the money.

I'm running the Eibach springs with 15mm frt & 20mm rear wheel spacers. No rubbing issues on the fenders what so ever. However since these tires are slightly smaller in height I have notice that my front wheel air diffusers and chin spoiler scrape more often on driveways and large bumps. I was hoping to go with coil overs and lessen the wheel gap by about 1/2 inch more, but now I'm re-thinking that. I would definitely have to remove the chin and wheel deflectors if I did that, I'm actually considering taking them off now.

Any pics?
(OT) I am about to pull the trigger on some wheel spacers 15mm fr & 25mm rr and remember your comment on another thread suggesting to consider the 20mm rr in the event I may want to oversize the rear tire upon replacement and rubbing issues.

(back on topic) My question (even though I know you went with 305's on the rear), do the oversize rear tires look out of place on the sport rim? I have seen in many cases with oversizing the tire on stock rims and they look like the Michelin man.

Minicobra1 · 12-05-2009, 06:32 PM

Quote:

Originally Posted by ZForce

Any pics?
(OT) I am about to pull the trigger on some wheel spacers 15mm fr & 25mm rr and remember your comment on another thread suggesting to consider the 20mm rr in the event I may want to oversize the rear tire upon replacement and rubbing issues.

(back on topic) My question (even though I know you went with 305's on the rear), do the oversize rear tires look out of place on the sport rim? I have seen in many cases with oversizing the tire on stock rims and they look like the Michelin man.

Here are some pics with the 305/30/19 rear and 20mm spacers and 1"inch drop. IMO: I don't think the tire bulge is all that bad, but Ideally I would prefer a 10.5 rim :-)
As far as 25mm spacers go, I personally wouldn't do it, unless you have some neg camber, as it stands with mine I dialed out the camber with some SPC adjustable arms, the 25mm spacers would probably make the tire stick out past the fender.

ZForce · 12-06-2009, 09:00 PM

Quote:

Originally Posted by Minicobra1

I'm running the Hankook V12's 305/30/19 Rear 255/35/19 fronts. The rear tire has a slight squeeze, but not too bad IMO. A 295 would be more Ideal for a 10 rim. I'm planning on changing to 10.5 rim very soon, so thats was why I went with the 305.
Overall the car feels very good, great tire for the money.

I'm running the Eibach springs with 15mm frt & 20mm rear wheel spacers. No rubbing issues on the fenders what so ever. However since these tires are slightly smaller in height I have notice that my front wheel air diffusers and chin spoiler scrape more often on driveways and large bumps. I was hoping to go with coil overs and lessen the wheel gap by about 1/2 inch more, but now I'm re-thinking that. I would definitely have to remove the chin and wheel deflectors if I did that, I'm actually considering taking them off now.

Quote:

Originally Posted by ZForce

Any pics?
(OT) I am about to pull the trigger on some wheel spacers 15mm fr & 25mm rr and remember your comment on another thread suggesting to consider the 20mm rr in the event I may want to oversize the rear tire upon replacement and rubbing issues.

(back on topic) My question (even though I know you went with 305's on the rear), do the oversize rear tires look out of place on the sport rim? I have seen in many cases with oversizing the tire on stock rims and they look like the Michelin man.

Quote:

Originally Posted by Minicobra1

Here are some pics with the 305/30/19 rear and 20mm spacers and 1"inch drop. IMO: I don't think the tire bulge is all that bad, but Ideally I would prefer a 10.5 rim :-)
As far as 25mm spacers go, I personally wouldn't do it, unless you have some neg camber, as it stands with mine I dialed out the camber with some SPC adjustable arms, the 25mm spacers would probably make the tire stick out past the fender.

Not bad on the bulge for 305/30/19, I agree 10.5 rim would look better. Decisions…decisions…Do mean the 275’s would stick out with 25mm spacers or are you referring to 295 & 305’s? I am thinking more of stock tire 275’s width with the 25mm spacers and I will be dialing out the camber with SPC rear camber kit. Sry…for the constant Q’s.

Btw…congrats on the Berk CBE, can’t wait to hear the sound clip. Guess the Nismo CBE with Berk HFC just didn’t do it for ya? Hopefully you got a good price for the Nismo. I am stuck with mine for awhile. No $$.

antennahead · 12-06-2009, 09:17 PM

Quote:

Originally Posted by ZForce

Not bad on the bulge for 305/30/19, I agree 10.5 rim would look better. Decisions…decisions…Do mean the 275’s would stick out with 25mm spacers or are you referring to 295 & 305’s? I am thinking more of stock tire 275’s width with the 25mm spacers and I will be dialing out the camber with SPC rear camber kit. Sry…for the constant Q’s.

Btw…congrats on the Berk CBE, can’t wait to hear the sound clip. Guess the Nismo CBE with Berk HFC just didn’t do it for ya? Hopefully you got a good price for the Nismo. I am stuck with mine for awhile. No $$.

There are not many choices available either in 295/19, there are a lot of 285/19s available ........ something to think about in your decision. I personally think 25mm is going to stick it out too far, but thats just my opinion. I have 15mm on mine, because I didn't do the fronts. Had I done the fronts, I would have probably gone 20mm in the rear. As it is, I think a 285, which is what I will go to when the stocks wear out, will still fill out the rear nicely. If more 295s come available by then, I may go that route as well.

ZForce · 12-07-2009, 02:20 AM

Quote:

Originally Posted by antennahead

There are not many choices available either in 295/19, there are a lot of 285/19s available ........ something to think about in your decision. I personally think 25mm is going to stick it out too far, but thats just my opinion. I have 15mm on mine, because I didn't do the fronts. Had I done the fronts, I would have probably gone 20mm in the rear. As it is, I think a 285, which is what I will go to when the stocks wear out, will still fill out the rear nicely. If more 295s come available by then, I may go that route as well.

Food for thought…..thanks Braden and John.

I did find these available tires under Tire Rack:

255/35/19
295/30/19 = 7 tires

245/40/19
285/35/19 = 9 tires

And stock size
245/40/19
275/35/19 = 19 tires

Not sure if I want the scraping going with the 255/35/19 fronts so I would prolly also stick with the 245/40/19 up front. For the rears it would then have to be the 285/35/19 if not the stock rear tire size of 275/35/19.

Curtis

11-29-2009, 01:33 AM	#1 (permalink)
schrute Track Member Join Date: Aug 2009 Location: utah Posts: 781 Drives: my z every day Rep Power: 18	I have 295's on a 10" rim and wouldn't go any wider personally. Just checked Hankook's size chart and in 19" you could go 255/35 Front and 295/30 Rear which have the same overall diameter front and rear (26.0) but are a bit shorter than stock. Differences with the shorter tires would of course be ride height (car would sit about .3" lower) and a little quicker off the line, with a corresponding loss (marginal) at the top end. You would also gain a little understeer with a 40mm stagger (difference between front and rear), likely not a big deal anywhere outside of the track (especially considering the Nismo has a 40mm stagger stock). Sways would make a big difference here. Closer to stock diameter you could go 255/40 Front and 285/35 Rear (don't see a 295/35 listed), which are close enough to each other in overall diameter (within .2") but just slightly taller than stock. Personally I'd go with the 255/35, 295/30 option, especially if you plan to add sways. __________________ my journal \| 2009 370z touring \| 6mt \| platinum graphite \| my album second skin \| mr works \| fast intentions \| ssr \| eibach \| hotchkis \| spc \| toyo \| bluebatmobile \| v-led \| jwt \| ventureshield \| tinted tails

11-29-2009, 12:39 PM	#2 (permalink)
Minicobra1 A True Z Fanatic Join Date: Nov 2008 Location: Orange County, CA. Posts: 1,205 Drives: 370Z Tour, Spt, 6mt Rep Power: 646	I'm running the Hankook V12's 305/30/19 Rear 255/35/19 fronts. The rear tire has a slight squeeze, but not too bad IMO. A 295 would be more Ideal for a 10 rim. I'm planning on changing to 10.5 rim very soon, so thats was why I went with the 305. Overall the car feels very good, great tire for the money. I'm running the Eibach springs with 15mm frt & 20mm rear wheel spacers. No rubbing issues on the fenders what so ever. However since these tires are slightly smaller in height I have notice that my front wheel air diffusers and chin spoiler scrape more often on driveways and large bumps. I was hoping to go with coil overs and lessen the wheel gap by about 1/2 inch more, but now I'm re-thinking that. I would definitely have to remove the chin and wheel deflectors if I did that, I'm actually considering taking them off now. DeanoL likes this. __________________ 370z Tour\| Spt Pack\|Navi\|BERK CBE\|Berk HFC's\| Eibach Springs\| Hotchkis Sway Bars\|SPC Camber Arms\|15mm Ichiba Wheel Spacers\| 19"Factory Nismo Wheels-Matt Black\|Stop Tech Rotors\|TWM Shifter\|3M Tint\|Black Fangs\|Black Rear Valance\|JDM Fog Light\| MY BAND-www.myspace.com/petroleum

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