Anybody upsize to 245/35-19s & 275/30-19s yet?

in talking with HRE they have told me that an 8.5" rim will fit on the front, with a 255/35/19, and a 10.5" rim will fit on the rear with a 295/30/19 with no issues. these tire sizes are also as close to OE rolling radius as it gets.

I'm running a 275/30/ 19 on rear [verdestein ultrac] on stock rim without any issues ,speedo is still dead on going by mile markers on I -20.

I am thinking of running a 235 in the front and a 265 in the back with ps2's. Anyone see any issues with this?

doublexl said:

in talking with HRE they have told me that an 8.5" rim will fit on the front, with a 255/35/19, and a 10.5" rim will fit on the rear with a 295/30/19 with no issues. these tire sizes are also as close to OE rolling radius as it gets.

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Other than HRE's word (I am not doubting them), does anybody else have verification of this? I am very interested. The ISF's lack of grip due to its weight and power is one thing I would love to improve. 255 fronts and 295 rears sound AWESOME!!!

DoubleXL, did HRE say that the rears fit without rolling the fenders? If so, I will be ordering wider wheels shortly. Also, what were the offsets on the 8.5" fronts and 10.5" rears? Thanks in advance.

offests are one thing they didnt tell me and i forgot to ask, or if they did tell me i just forgot. they said no rolling of the fender was necessary. but they did say an 11" wide rear was too aggressive and that it would not fit. so im guessing that 10.5" is really really close. i kind of like the stock wheels, and i cant decide on wheel color, also i want to weigh the stocks to see if they are lighter then what hre told me about their monobloks

Indeed! These sizes are the largest that can be fitted to the factory wheels and work great. There are no rubbing issues of any kind. While it's true the upgrade will provide a larger contact patch nothing will keep the tires from spinning under full throttle with the traction and VDIM disabled. The cars stance is more agressive in appearance as well!!

good stuff...thanks for the info

so wut about a 285/30/19 on the rear

I had a local Phoenix tire shop tell me that 275/35-19 in rear will most likely rub on the struts. The dealer I purchased the car from won't comment on max size. Anyone else have this experience? Also, whoever does have the 275s on the rears, please send pictures of the direct rear view and 3/4ths view so I can see how well the tire fills out the wheel well. Thanks.

Continental ExtremeContact DWS

Hey all,

I think I am going to go have Continental ExtremeContact DWS tires put on my ISF today if I can find a local dealer with the correct sizes. I have two questions:

1) Is there anybody on this site running 245/35R19s front - 275/30R19s rear in an Ultra High Performance All Season tire similar to the ExtremeContact DWS?

2) If so, are there any rubbing issues whatsoever, and how does the dry traction compared to the stock ISF tires?

I know that several people have reported no rubbing on 275/30R19 rears, but I thought that maybe the A/S tires might have a just bit more tread and potentially cause issues. I am pretty sure they will fit, but I don't want to have them installed and have rubbing issues.

For the last 5-6 months I have been running 245/35R19 on the front and 285/30R19 on the rear on stock rims. No rubbing problems. In fact I just finished a track weekend at TWS with this setup and no rubbing whatsoever. Did not have to roll the fenders. Hope this helps

Pat

pat.ross said:

For the last 5-6 months I have been running 245/35R19 on the front and 285/30R19 on the rear on stock rims. No rubbing problems. In fact I just finished a track weekend at TWS with this setup and no rubbing whatsoever. Did not have to roll the fenders. Hope this helps

Pat

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Can you post some pics. please?

Thanks

Lou

pat.ross said:

For the last 5-6 months I have been running 245/35R19 on the front and 285/30R19 on the rear on stock rims. No rubbing problems. In fact I just finished a track weekend at TWS with this setup and no rubbing whatsoever. Did not have to roll the fenders. Hope this helps

Pat

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Thanks A LOT for the confirmation on this. I have been hesitant to pull the trigger on this one, but now I have a little piece of mind.

What exact tire have you been running? I would like to look up the manufacturer's exact specifications on it because the same list size tire can vary in actually specifications between manufacturers and model types.

275/30/19 in the rear is the most aggressive we can do.
245/35/19 or 235/35/10 are the best for the front.


I'll be trying out the 235/35/19 and 275/30/19 on my car next week. I think going to Michelin PS2s.

I have been running Vredestein Ultrac Sessanta tires. Wear index 280. I don't know how to download pictures. I gave my wife a new Nikon D90 for Christmas so as soon as I can get my car cleaned (lots of rain during the last week) I will try to download pictures

Pat

pat.ross said:

I have been running Vredestein Ultrac Sessanta tires. Wear index 280. I don't know how to download pictures. I gave my wife a new Nikon D90 for Christmas so as soon as I can get my car cleaned (lots of rain during the last week) I will try to download pictures

Pat

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These tires have been getting great reviews. Maybe I'll jump on these... They are half the price of the Michelin PS2's, but rated hand and hand with them...

http://www.tyrereviews.co.uk/Tyre/Vredestein/Ultrac-Sessanta_3.htm

http://www.m3post.com/forums/showthread.php?t=268043

pat.ross said:

I have been running Vredestein Ultrac Sessanta tires. Wear index 280. I don't know how to download pictures. I gave my wife a new Nikon D90 for Christmas so as soon as I can get my car cleaned (lots of rain during the last week) I will try to download pictures

Pat

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I can't find the 285/30/19 in these. Everyone tells me they don'take that size. :-(

Well, I ordered Continental ExtremeContact DWS tires online last night - 245/35R19s front and 275/30R19s rear. They should arrive within the next week. As soon as I get them put on the car, I will post pics from every angle. I figured that by going with an ultra high performance all season tire, I would get the best of all worlds without having to switch tires in different seasons.