17" rims and need help
17" rims and need help
I was looking at 17" rims and found some at PDM Racing for $152 a piece. They are G-Racing Seki rims, 17" x 7, 42mm offset, in 4 on 100 / 4 on 114.3mm bolt pattern. I was wondering what would be the widest tire I could fit on them
according to tirerack
the widest tire you can fit that will be close to stock size will be a 225/45/17 tire, which incidentally will be within 2%of the stock tire as far as your speedo is concerned.
but as far as a 17x7" rim is concerned the widest tire you can FIT on there is the 245/45's (I KNOW the azenis sports will fit on the rim in that size). this is not recommended but is used on the autocross tracks frequently.
also 235/50 will fit as will 225/50 and 225/55 but all but the 225/45 will be off by a lot on the speedo (as much as 10% on the 225/55 size and 6% on the 245/45 size)
as far as fender clearances and suspension geometry, I don't know.
but as far as a 17x7" rim is concerned the widest tire you can FIT on there is the 245/45's (I KNOW the azenis sports will fit on the rim in that size). this is not recommended but is used on the autocross tracks frequently.
also 235/50 will fit as will 225/50 and 225/55 but all but the 225/45 will be off by a lot on the speedo (as much as 10% on the 225/55 size and 6% on the 245/45 size)
as far as fender clearances and suspension geometry, I don't know.
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Nismo_Freak
- Posts: 10314
- Joined: Wed Jul 24, 2002 10:42 pm
- Car: 89 Nissan 240SX
Re: according to tirerack
vq35de wrote:the widest tire you can fit that will be close to stock size will be a 225/45/17 tire, which incidentally will be within 2%of the stock tire as far as your speedo is concerned.
but as far as a 17x7" rim is concerned the widest tire you can FIT on there is the 245/45's (I KNOW the azenis sports will fit on the rim in that size). this is not recommended but is used on the autocross tracks frequently.
also 235/50 will fit as will 225/50 and 225/55 but all but the 225/45 will be off by a lot on the speedo (as much as 10% on the 225/55 size and 6% on the 245/45 size)
as far as fender clearances and suspension geometry, I don't know.
I'm sorry but a 245 on a 7" rim with a stiff sidewall such as the one on the Azenis Sport... that's just ghetto. You'd probably be faster with a 215.
Ok, before I start my long a*s rant, he may be faster with a 215 series tire, due to friction and rolling mass. By going to 17" tires I don't think he is concerned with rotating mass or he has enough power in his goals to make up for it. So 225/235 or even 245 series tires may be needed. So here is my rant on 235's and 245's on a 17x7 rim:
ok, 235/50 is wonderful on a 17x7 rim, tread wear is great no problem at all. it is even in tirerack's recommended rim width for that tire. My point is it will be alot larger (1.6" larger than stock for a 240sx).
245's will not get the correct contact patch but will FIT. That is why I mentioned it. It will have more surface area than a 235 on the ground, it will not cause bead seating problems. It will put excess stress on the sidewall and will cause the tread to wear unevenly but 245/45's will fit. It is great for autocross, but not for street use.
He asked for input. Don't dis the advice without knowing. 235/50 and even 235/45's will fit on the 17x7 rim with ZERO problems on tread contact or bead. The 235/50 will have zero additional sidewall stress. The 235/45 will have some additional sidewall stress but that particular tire size comes with some world class tires that are made to handle the abuse.
I have been using the 17x7 rim for 3 years now (stock size rim on 3.5 liter altima and G35 and I KNOW the tires that work on it. I have had 4 different brands on MY rims and have driven cars with many other brands/sizes)
ok, 235/50 is wonderful on a 17x7 rim, tread wear is great no problem at all. it is even in tirerack's recommended rim width for that tire. My point is it will be alot larger (1.6" larger than stock for a 240sx).
245's will not get the correct contact patch but will FIT. That is why I mentioned it. It will have more surface area than a 235 on the ground, it will not cause bead seating problems. It will put excess stress on the sidewall and will cause the tread to wear unevenly but 245/45's will fit. It is great for autocross, but not for street use.
He asked for input. Don't dis the advice without knowing. 235/50 and even 235/45's will fit on the 17x7 rim with ZERO problems on tread contact or bead. The 235/50 will have zero additional sidewall stress. The 235/45 will have some additional sidewall stress but that particular tire size comes with some world class tires that are made to handle the abuse.
I have been using the 17x7 rim for 3 years now (stock size rim on 3.5 liter altima and G35 and I KNOW the tires that work on it. I have had 4 different brands on MY rims and have driven cars with many other brands/sizes)
Congrats, you've managed to peeve mee off. lets disct your argument for a second.
so please, before you decide to start bashing mine, alan, grant, or smiths advice(much less michelin and pirelli and yokohamas engineeres sizing constraints) take your own advice:
"dont dis advice without knowing"
-chet
vq35de wrote:Ok, before I start my long a*s rant, he may be faster with a 215 series tire, due to friction and rolling mass. By going to 17" tires I don't think he is concerned with rotating mass or he has enough power in his goals to make up for it.
He will be faster wit a 215-45-17 because the tire is able to do its job better on a 7" wheel, not because of rolling resistance, since contact patch area does NOT vary by width...but we'll get to that later. Friction is characteristics due to the tire and road surface, and teh weight on the tire, not width(since contact patch doesnt get affected by width) Also, hes driving a 1992 240sx, which means you want the gearing low, since its not a top end car..going larger will ruin his gearing somewhat...now lets continue.
So 225/235 or even 245 series tires may be needed.
No, a sticky tires is neaded for high horsepower, just like I said, the compound of the tire is more important to the cars grip than the section width.
So here is my rant on 235's and 245's on a 17x7 rim:
ok, 235/50 is wonderful on a 17x7 rim, tread wear is great no problem at all. it is even in tirerack's recommended rim width for that tire. My point is it will be alot larger (1.6" larger than stock for a 240sx).
245's will not get the correct contact patch but will FIT. That is why I mentioned it. It will have more surface area than a 235 on the ground, it will not cause bead seating problems. It will put excess stress on the sidewall and will cause the tread to wear unevenly but 245/45's will fit. It is great for autocross, but not for street use.
so your telling me uneven tread stress is GOOD for autocross? I thought the object was to maximise grip, meaning maximise the contact patch available by putting it on the ground..uneven tread wear means just the opposite. And again, contact patch area is a function of vehicle weight and distribution more than the section width of the tire. Its physics. Also, I would wager you have never ran a slightly smaller tire in an autocross, because...if you did, and it WAS properly matched to the wheel, it does its job better, resulting in quicker laps times. Also, oversizing a wheel is NOT good for autcoross, for some reasons above, but more for safety..when do you think a tire is more liable to de-seat its own bead, at 99% lateral stress(racing) or at 70% stress when street driving...?
He asked for input. Don't dis the advice without knowing.
wow, I would totally take my own advice here.
235/50 and even 235/45's will fit on the 17x7 rim with ZERO problems on tread contact or bead. The 235/50 will have zero additional sidewall stress. The 235/45 will have some additional sidewall stress but that particular tire size comes with some world class tires that are made to handle the abuse.
Ok, a 235-45-17 is still a bit wide, due to its lower sidewall height. and when did the sidewlal of the tire being stiffer means that you can run a smaller wheel? its the other way around man. the stiffer the sidewall(lower hieght, thicker, higher bead stabilizers) the more carefully you have to match the wheel width to the tire for proper handling and performance. If you look at the MAST guide, lower profile tires have closer tollereances in rim ranges for a reason. The 235-50-17 works fine on a 7" wheel, like you said.
I have been using the 17x7 rim for 3 years now (stock size rim on 3.5 liter altima and G35 and I KNOW the tires that work on it. I have had 4 different brands on MY rims and have driven cars with many other brands/sizes)
great, I've driven many track days, road raced at road atlanta and while we're naming off cool things, driven a ferrari F40 around. STILL doesn't mean you know what your doing with wheels and tires. Michael Shumacher probably coouldnt tell you how to adjust air pressure, and properly select tires for a vehicle man. Yet, I'm glad you've expermineted with 4 different brands, thats great, please leave me some feedback on your impressions on each tire and how you thought it did.
I'll leave you with a few ideas:"just beause you CAN, doesn't mean you SHOULD" (dude I can fit a 255-40-17 on a 7" rim...)
and:"when you think you know everything, you know nothing."
so please, before you decide to start bashing mine, alan, grant, or smiths advice(much less michelin and pirelli and yokohamas engineeres sizing constraints) take your own advice:
"dont dis advice without knowing"
-chet
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Nismo_Freak
- Posts: 10314
- Joined: Wed Jul 24, 2002 10:42 pm
- Car: 89 Nissan 240SX
Might I add that me, chet, grant, and smith all work every day with tires... it's our job.
So if your saying we are uneducated then you might want to call NTB, LeTire (Sorry smith, can't remember), and TireRack and tell them you'd like to rewrite all their standards and hold a paid seminar to teach us all the "correct way" of driving our own cars and fitting "optimum" tires on a 17x7 rim.
:rolleyes
So if your saying we are uneducated then you might want to call NTB, LeTire (Sorry smith, can't remember), and TireRack and tell them you'd like to rewrite all their standards and hold a paid seminar to teach us all the "correct way" of driving our own cars and fitting "optimum" tires on a 17x7 rim.
:rolleyes
ok you guys win you know more about tires than I do. He may want to run a 215 series tire to get better performance.
Very little was available for my stock tire diameter on my G35 and people are still learning what fits well and the performance of those tires. Since that rim happens to be a 17x7 rim I figured I would share what I have learned. Additionally to get a great tire in that size you have to be a little flexible in the tire size. In 215/45 you have more choice than my 26.3" diameter. Since there is so little in the 225/235/245 that will fit that rim I figured I would expand his options so he could perhaps find a better tire brand/make that would suit him.
He asked the question what is the widest tire he can fit on the 17x7 rim. I answered with what I have seen.
I will give you constructive feedback on what I have driven in just a few. I am busy tonight and may not get back to you until tomorrow. It will take a while. I have already given feedback onthe pilot sport a/s inthe tirerack website.
Very little was available for my stock tire diameter on my G35 and people are still learning what fits well and the performance of those tires. Since that rim happens to be a 17x7 rim I figured I would share what I have learned. Additionally to get a great tire in that size you have to be a little flexible in the tire size. In 215/45 you have more choice than my 26.3" diameter. Since there is so little in the 225/235/245 that will fit that rim I figured I would expand his options so he could perhaps find a better tire brand/make that would suit him.
He asked the question what is the widest tire he can fit on the 17x7 rim. I answered with what I have seen.
I will give you constructive feedback on what I have driven in just a few. I am busy tonight and may not get back to you until tomorrow. It will take a while. I have already given feedback onthe pilot sport a/s inthe tirerack website.
yes, there is very limited tires available for the G35 tire sizes with the stock rims, but he has a 240sx 
underpowered compared to a g35 to be sure, but fun non the less. Pirelli is considering making a Pzero corsa in the 235-50-17...may want to check that out for autocross/road racing you G35
or buy a set of volk's or BBS' from me.-chetfeel free to leave me feedback on the tires.
underpowered compared to a g35 to be sure, but fun non the less. Pirelli is considering making a Pzero corsa in the 235-50-17...may want to check that out for autocross/road racing you G35
or buy a set of volk's or BBS' from me.-chetfeel free to leave me feedback on the tires.
I am not arguing anything. besides the fact that I am not arguing:D
but if that guy wants to go wider than 225 on a 17x7 rim he is in the whole G35 limited tire selection arena and in that case the more tire sizes he is willing to look at the better. As I pointed out before, in some cases there are tires that are much better in the 245/45 size than the 235 sizes. So much better that even with some distortion and compromise of the sidewall and tread contact patch, you will be better off with the larger tire for performance.
Now if you can run 225/45 that is a very very good tire size for that car and rim. For one of the stock tire sizes that puts you out by 3% which is a little too far in some peoples minds.
But if someone asks "how wide can I go" and is not talking about women, you gotta give them the truth.
And my experiences with other tires: Bridgestone Turanza EL42 (215/55/17), Goodyear GS-D's(215/55/17), Michelin Pilot Sport (235/50) A/S, and Bridgestone S-O3's(225/55)
For performance, the Bridgestone's sucked and gave poor ride quality, as well as poor tread life (20k miles on a set of touring tires sucks)
The Goodyears are not bad just above average, but not worth 200/tire. their treadlife was below average for a performance tires, great handling but poor straightline traction
The Michelin's are God's gift to 4 door sports car drivers who have wife and kids. Unfortunately since they are so good at minimizing road noise they are not as good at handling as the S03's were. The tread life is excellent for performance tires and they handled very well in snow rain and even in dirt the one time I went off road at 70 mph. I braked til smoke billowed several times and never had any flat spots (WITHOUT ABS)
The S03's I only had for 2000 miles before I sold my altima but they handled very well and did not have as much traction on launch as the Michelins (225 vs.235 width had something to do with it too). Handling is awesome, road noise is good but not great, good steering feel (with the altima it is hard to get specific about steering feel.)
As a point of interest, the altima had 234 whp and 240 fwtq so it was pushing the tires to their limit.
but if that guy wants to go wider than 225 on a 17x7 rim he is in the whole G35 limited tire selection arena and in that case the more tire sizes he is willing to look at the better. As I pointed out before, in some cases there are tires that are much better in the 245/45 size than the 235 sizes. So much better that even with some distortion and compromise of the sidewall and tread contact patch, you will be better off with the larger tire for performance.
Now if you can run 225/45 that is a very very good tire size for that car and rim. For one of the stock tire sizes that puts you out by 3% which is a little too far in some peoples minds.
But if someone asks "how wide can I go" and is not talking about women, you gotta give them the truth.
And my experiences with other tires: Bridgestone Turanza EL42 (215/55/17), Goodyear GS-D's(215/55/17), Michelin Pilot Sport (235/50) A/S, and Bridgestone S-O3's(225/55)
For performance, the Bridgestone's sucked and gave poor ride quality, as well as poor tread life (20k miles on a set of touring tires sucks)
The Goodyears are not bad just above average, but not worth 200/tire. their treadlife was below average for a performance tires, great handling but poor straightline traction
The Michelin's are God's gift to 4 door sports car drivers who have wife and kids. Unfortunately since they are so good at minimizing road noise they are not as good at handling as the S03's were. The tread life is excellent for performance tires and they handled very well in snow rain and even in dirt the one time I went off road at 70 mph. I braked til smoke billowed several times and never had any flat spots (WITHOUT ABS)
The S03's I only had for 2000 miles before I sold my altima but they handled very well and did not have as much traction on launch as the Michelins (225 vs.235 width had something to do with it too). Handling is awesome, road noise is good but not great, good steering feel (with the altima it is hard to get specific about steering feel.)
As a point of interest, the altima had 234 whp and 240 fwtq so it was pushing the tires to their limit.