what is the biggest wheel and tire size possible in the rear?
after installing disk brakes in the rear?
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what is the biggest wheel and tire size possible in the rear?
after installing disk brakes in the rear?
after installing disk brakes in the rear?
how long is a piece of string?
JK... There are a lot of factors in this answer.
1) What kind of transmission (swing short / long or IRS)?
2) what kind of brakes?
3) bolt pattern of desired wheel?
4) body type (faired or standard)?
JK... There are a lot of factors in this answer.
1) What kind of transmission (swing short / long or IRS)?
2) what kind of brakes?
3) bolt pattern of desired wheel?
4) body type (faired or standard)?
swing axle converted to irs.
drum converted to disc.
standard not flared...
wide 5bolt pattern.
have 15X41/2 now with 15/165
i would like to run a 15 x 5 1/2 or 6 to run up to 205 without rubbing is this possible??
drum converted to disc.
standard not flared...
wide 5bolt pattern.
have 15X41/2 now with 15/165
i would like to run a 15 x 5 1/2 or 6 to run up to 205 without rubbing is this possible??
why is this thread on two different forums.....i think one would have been plenty....
Yes, no or maybe, but you'll need 4.5 - 5 in backspacing wheel to do it, or you can narrow the IRS. The IRS adds width, disc brakes can add more, who knows if your car is centered on the chassis ro what else might be unique with your car? Bottom, line, you are the best judge of what can fit, get under your car and do some measuring.
Boston Bob E
Boston Bob E
Chris,
Did you do a search on this topic?
It's been covered and is being covered currently on a couple threads.
Mickey's "f'n wheelwells https://www.speedsterowners.com/forum/readmsg.asp?t=14395 is one in particular.
You'll be lucky to run a 5.5 wheel with a backspace of 4-3/4".
All Fuchs wheels share that backspacing. Empis and most repros. don't
Tire size is more subjective as to the brand, but you're most likely not going to get much more than a 185 series.
Your other option is to do what Paul has done and Mickey is attempting, and that's to shorten your axles.
Did you do a search on this topic?
It's been covered and is being covered currently on a couple threads.
Mickey's "f'n wheelwells https://www.speedsterowners.com/forum/readmsg.asp?t=14395 is one in particular.
You'll be lucky to run a 5.5 wheel with a backspace of 4-3/4".
All Fuchs wheels share that backspacing. Empis and most repros. don't
Tire size is more subjective as to the brand, but you're most likely not going to get much more than a 185 series.
Your other option is to do what Paul has done and Mickey is attempting, and that's to shorten your axles.
the short answer is no, you will not be able to run 205 on an IRS car without serious mods.
Chris,
Listen to Paul, he knows of what he speaks.
I am currently going through the process of narrowing the rear (IRS) on my car to fit wider wheels. I will post all the info on here when I'm done. I'll be starting the project wednesday the 25th and expect it to take a few days so I should have it all up by the end of the month. Trust me when I say I have tried every route there is to get wider wheels on my car without going through with the narrowed arms and it can't be done. I'm not even sure how much more room I'll have once it's done (supposed to give me 1.5" on both sides). My hopes are to get 5.5" wheels with some nice tires. I think much more than that might be overkill being these cars are so light to begin with. However, if you have some muscle in your car, like some of these guys do, even more meat on the street may be needed.
Paul said it in another thread, "It won't be cheap and it won't be easy.", he's right, but I think it'll be worth it in the long run.
Listen to Paul, he knows of what he speaks.
I am currently going through the process of narrowing the rear (IRS) on my car to fit wider wheels. I will post all the info on here when I'm done. I'll be starting the project wednesday the 25th and expect it to take a few days so I should have it all up by the end of the month. Trust me when I say I have tried every route there is to get wider wheels on my car without going through with the narrowed arms and it can't be done. I'm not even sure how much more room I'll have once it's done (supposed to give me 1.5" on both sides). My hopes are to get 5.5" wheels with some nice tires. I think much more than that might be overkill being these cars are so light to begin with. However, if you have some muscle in your car, like some of these guys do, even more meat on the street may be needed.
Paul said it in another thread, "It won't be cheap and it won't be easy.", he's right, but I think it'll be worth it in the long run.
i have 185's in my non-flared IRS. i narrowed the rear as much as i could. i *might* be able to fit 195, but not 205's
chris, my speedster is from SOuth AFrica. I have used an off the shelf rear disk brake conversion (from South AFrica). I have a set of 7.5" rims with 225/40-18" tyres. The rear axle is a swing axle. the rims have a 35mm offset. (more rim to inside) The tyres clear the fender by about 5mm on the one side and 10mm on the other side. The tyres nor rims rub or touch anywhere. The body style is the clasic, no flares at all.
It did take a while to find a rim with the correct offset. This fitment is usually found on a front wheel drive car.
when I decided to to fit bigger wheels i measured the distance from the fender to the tyres while settled on the ground. i then drove the car onto a four post lift. I then had a look at how much space was on the inside of the wheel between the swing arm and the inside of the tyre. This gave me a starting point. At first I thought i was going to have to use a spacer, which i planed to manufacture after the first trial fit. Somewhere my calculations where rubbish and i had a perfect fit without any spacers. I was concerned that it might rub at the shock mounts.
clearly the mounting on the disk setup was different to the drum, but as they say, alls well that ends well.
It did take a while to find a rim with the correct offset. This fitment is usually found on a front wheel drive car.
when I decided to to fit bigger wheels i measured the distance from the fender to the tyres while settled on the ground. i then drove the car onto a four post lift. I then had a look at how much space was on the inside of the wheel between the swing arm and the inside of the tyre. This gave me a starting point. At first I thought i was going to have to use a spacer, which i planed to manufacture after the first trial fit. Somewhere my calculations where rubbish and i had a perfect fit without any spacers. I was concerned that it might rub at the shock mounts.
clearly the mounting on the disk setup was different to the drum, but as they say, alls well that ends well.
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