Yourconfused

I have searched a while and haven't found exactly what I need to know yet regarding tire size on these spec of wheels. I also heard about cracking fenders but haven't found any threads about that due to tires being too wide or offset issues.

I have a stock ride height Z51 with 19x9.5 50et and 20x11 73et wheels. I know they don't have the best offset, as they stick out a little, but I need wider than stock tires ASAP as a bad alignment has worn the inside of the fronts and outside of the rears. The 245/35r19 and 285/30r20 are too stretched on the 1" wider wheels. I would like to fit 275/30r19 and 305/30r20 on the car but don't know if they will rub and/or hit the fenders to the point of doing damage. The 275/30 have a better circumference (in keeping the F/R ratio for the BCM) than a 265/35 although I think the width of 265 should fit better. I only daily drive and will most likely be going with all season tires as the MPSS basically sucked for all but the 90+ degree days.

Does anyone know if I can get away with the tire sizes I mentioned? There aren't any in stock so I would need to have the tires ordered and that is where I am running into resistance with tire shops here, kinda a catch 22 as they won't order if they don't know they will fit or rub.

Thanks in advance!

Yourconfused

Car is up on my drive with 1 front in the air and the other rear half in the air to give an idea of wheel travel and clearance. Any thoughts?

Yourconfused

Anyone?

subieworx

The front will be fine. You will never be at speed with the wheel turned that much so a 265 or 275 will fit fine there. The rear will be close with a 305. I run a similar size rear wheel , but with a 76 offset moving the wheel in 3mm, am lowered on stock bolts all the way and with a 305 30 20 have to run -1.7* of camber and have trimmed my rear fenders to get them to clear.

rrsperry

That isn't stock ride height. That's just stupid low.

Yourconfused

Thanks for the info, looks like I'll probably end up with 265/3519 and 295/30/20. I'd like 275/30/19 but it seems like it's harder to find with a matching rear. I think my driveway will be the hardest to deal with like you implied, but hopefully manageable.

Yourconfused

Read the second post again. My driveway is a bitch.

Gary barnes 1098

The comment that said that’s stupid low is totally bias. That car sits GREAT!!! The stock height looks horrible. If the op wanted a 4x4 I’m sure he would’ve got one. Nice car man.

Avanti

Wider tires/lower car may not always be possible without potential issues. Something to do with the Laws of Physics as I remember.

Bubbletop409

Two items occupying the same space at the same time will do damage to one.

Yourconfused

For reference, to those who can read that is, as I am stock height, I managed to fit the 275/30/19 up front with zero issue and love the increased traction. The 295/30/20 in the rear is a non issue, fitment wise, also but I wish I had access to a tire a bit wider as I could use more traction for my DD.

sabasigh

What tire did you end up getting? (You mentioned all seasons...)

I have a Z51 stock height that I'm gonna get all seasons for the stock rims and want to get some Nitto's on these ZR1 replica's. 19/20 running 265/305

Yourconfused

I ended up going with Firestone firehawk indy 500. I had the previous version, the wide oval, on another car with right at 420 tq at the wheels and I got 40k out of them and thought they were better than a couple of bridgestone summer tires I have had, overall, so I opted to give them a try. They have a bit of a curve to the tread on the corners compared to the MPSS, with its square shoulders, and seem to fit the car just fine. Last week I managed to bottom the car out really hard going around 90 and they didn't seem to have rubbed anywhere while giving decent ride overall, most noticeably being really quiet compared to the MPSS that were about 55-65% worn out. They aren't all seasons but I drove the other wide oval indy 500 in the snow multiple times and they were summer only, and then I realized that my truck is the only thing with all seasons that I have driven over the last decade so I figured I would be happy enough. The MPSS just sucked for a DD as they needed to get quite warm to have any traction, even during Texas summer months, and the several other brands of summer only tires didn't complain near as much as those Michelin's did even when they were not up to temp. I still need more rear traction but I am quite pleased with what the extra meat up front has gained me and can get 1g on hard turns on the street and I just love being able to corner hard in a vehicle. The tire I was looking at aside from these, that had a wider front fitment, was the Bridgestone Potenza RE980AS. If the RE980as or the Michelin Pilot sport AS3+ had 275/30/19 and 305/30/20 I would have gone with them instead. Below are links to a guy who gave these tires a decent review so I gave them a try and while I still can't floor it below highway speeds I am pleased enough with them.

https://www.ramseyethetrackguy.com/2...-indy-500.html

https://www.ramseyethetrackguy.com/2...ck-review.html

JT Corvette

Any rub since install??

Yourconfused

I've heard it rub a couple times but I've yet to notice exactly where it rubbed. You need to bottom the car out to make it rub audibly. I expected it to be an issue but I'm surprised, happily, that it isn't.

Blackhammer74

255/35/19 front and 305/30/20 rear. Stock height no rubbing.

sabasigh

Hard to see but are those Lexani Tires? How are they?

Blackhammer74

Yes. Lexani lx20. I did a lot of research and talked to people that have used them. They ride great, real grippy and are very quiet. There's also no skipping on full turn. Got them from Tires Nation. Best price and free shipping.

Yourconfused

Car looks really clean!

Have you gotten them hot yet? I noticed a few different brands tend to turn into grease when hot, as from hard driving/cornering to where your already warmed up tire temps go up a couple more degrees from the friction.

Also what alignment specs do you have and did you have any tire wear issues in the past?

Blackhammer74

Only drive less that 100 miles since I had them put on. I'm a recreational driver so I don't do tracks or aggressive driving.