OK, so a few of you may know that I've been on this board for a few days and have been searching like crazy so I don't incur the wrath of the masses, but didn't see this covered anywhere. Or maybe my searching sucks.

Anyway, what is the largest tire you can fit under a P-type without more than rolling the lip and a minor drop of 1.5"? The nearest I can tell from measuring my '82 P-type is 275/40- 17 in the back and 255/40- 17 up front? Regarding the offset, the wheels I have in mind will require spacers, but I'm not adverse to turning some 7075. I was planning on measuring with the wheel/ tire mocked up in the wheel well with weight on the suspension.

I'm only asking because I don't want to fork out money for stuff that won't fit, and figured I'd get the straight dope from all the knowledgeable people on this board. And please go easy on me; I might be a noob to the MKII and this board, but I'm certainly not a noob to cars. :)

You measured well Poopra :cool:

That seems to be what we're finding: 255/40R17 front, 275/40R17 rear. If you want to do 18s , you may be able to push 285/30R18 in the rear.

Regards,
James R

Thank you, James. I suppose my next question would be if staggering the tires like that would be more condusive to handling than 255/40- 17's at both ends. I probably should search more before "officially" asking, though. ;)

My eventual goal is somewhere around 400 WHP from a 1JZ with handling and braking taking precidence over power production.

I have 255/40/17 rear and 235/40/17 front, I think you would experience some major camber problems on the rear with anything much bigger and the front only just works with no scrubbing as I have adjustable camber tops that raises the front by about an inch

Hm, that's some good advice on the front, however I'm curious how tire width affects camber, which is a function of suspension geometry.

28228

Check this set up out...i know its 18's, but it will give you an idea...

Tires dont affect camber... your suspension does. The mk2s squat when lowered. There are people on here that are/have tried to offer suspension changes to the rear to correct this.

For the mk2 .. you need staggered tire widths. In fact for any RWD, IMO. Bigger rear tires to put the power down... with our cars being so tail happy, more tire in the back helps a bit of that.

I'm personally running 245/40R17 (as close to stock size as you can get and absolutely no issues on a 17x8 +10) with 255/40R17 on 17x9 +10. I've sent out 17x8 +10 with 17x9 +0 with those same tire sizes. The 245/40R17s up front makes a huge difference for starting the turn. The 255s or larger on the rear makes exiting the turn a lot friendlier. For those looking to put more power down than stock... I lean towards what's available.. like the front tires off a Viper - 275/40R17. I've installed and have read about 275/40R17s with no issues.

Regards,
James R

Well, the best "large" size in the year would be a 275/35 17", but I have yet to find a tire manufacturer that sells this size. Apprently once upon a time Yokohoma did, but not anymore.

Sonny

James, thank you for the insight. I feel much more confident after hearing from a wheel/ tire authority such as yourself.

Sonny, a 275/40- 17 is only 4.2% slower than the stock size. In my previous experience with various Hondas (yeah yeah...) and Celica AllTracs, that's not enough to change performance, and if you can remember that your speedo will read 2.5 MPH slower than your actual speed, you're fine. :)

Well, the best "large" size in the year would be a 275/35 17", but I have yet to find a tire manufacturer that sells this size. Apprently once upon a time Yokohoma did, but not anymore.

Sonny

Sonny: You are correct in stating that 275/35R17 is the ideal size in the back. But you're also correct in stating that it is difficult to find. But let me add that it is impossible to find especially with matching fronts. Hence my reason for stating "leaning towards what's available." I used to mention 275/35R17 relatively often when asked the max 17" tire.. but its not worth getting people all pumped up for a tire that no longer exists.

Regards,
James R

Go Big or Go Home:
http://i15.photobucket.com/albums/a364/superium/Misc%20Supras/josephssuprarear2.jpg

that's so cool. I was in awe of the 225s when I first got my supra (cuz I was so used to 185s and lower), but that looks astounding! That's like vette tires. I'm surprised that viper fronts are only 275s.

Mark, that's a crazy pic! That's been altered (photoshop, etc.), right? I don't remember them looking quite that wide in real life. Those look like 315s or bigger.

Mark, that's a crazy pic! That's been altered (photoshop, etc.), right? I don't remember them looking quite that wide in real life. Those look like 315s or bigger.

Yeah I wanted to see what 300+ wide tires would look like, heres George's original photo:
http://i15.photobucket.com/albums/a364/superium/Misc%20Supras/josephssuprarear.jpg

^ still not too shabby. I can't wait to get those back on a MK2 this spring.

wow, that looks hotttttt O.o

One thing to look out for with low profile tyres is how low your car is! Its not too bad if its stanard or droped 2inchs, but when it gets lower then that you begin to encounter this problem!

http://img20.imageshack.us/img20/272/dscn0251zw3.jpg

Go Big or Go Home:
http://i15.photobucket.com/albums/a364/superium/Misc%20Supras/josephssuprarear2.jpg

Now thats freaking HOT!!! I would be afraid to come across any car with tires that wide. You just know if they roll around in something that wide its because they need the traction to put down the HP :door:

One thing to look out for with low profile tyres is how low your car is! Its not too bad if its stanard or droped 2inchs, but when it gets lower then that you begin to encounter this problem!

http://img20.imageshack.us/img20/272/dscn0251zw3.jpg

you should try doing the rear camber mod, it might help with thread life on those tires just a tad :eek4dance:

One thing to look out for with low profile tyres is how low your car is! Its not too bad if its stanard or droped 2inchs, but when it gets lower then that you begin to encounter this problem!

Thanks for the tip! However, I don't want to lower it too much. Perusing the 935 site, I'm thinking 350 lb. springs in the rear and 450 lb. springs up front. I go by the two finger rule- if I can just barely fit two fingers between the tire and the fender lip, it's perfect. That doesn't apply to the Taco, though. :)

Go Big or Go Home:
http://i15.photobucket.com/albums/a364/superium/Misc%20Supras/josephssuprarear2.jpg

So thats what a tubbed supra will look like....:eek4dance:

though the pic is slightly exaggerated - that is what it does look like when you're behind that beast! It certainly looked mini-tubbed! Damn that car was so bad ass!

though the pic is slightly exaggerated - that is what it does look like when you're behind that beast! It certainly looked mini-tubbed! Damn that car was so bad ass!

Ahhh the memories, lol. Especially when he blocks me from getting in his lane on the QEW and then I have to drive in reverse to get on the right exit.

though the pic is slightly exaggerated - that is what it does look like when you're behind that beast! It certainly looked mini-tubbed! Damn that car was so bad ass!


speaking of minitubbed. is it possible to minitub a mkii? i never really looked.

speaking of minitubbed. is it possible to minitub a mkii? i never really looked.
of course, anything is possible, but I dont think it'd be too easy. Mini-tubbing the wheel wells wouldnt be too big of a deal (just need to relocate the shock mount), but I think the major hassle/ limit would be the rear swing arm.