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Staggered FD setup (18" front, 19" rear)

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Old Dec 2, 2004 | 10:30 PM
  #1  
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Staggered FD setup (18" front, 19" rear)

Hi guys,

I'm looking to run a staggered 18" front and 19" rear setup for my FD. At the moment I have 18,9 and 18,10 K58 and Toyo T1S in 255/35/18 and 275/35/18. I intend on keeping the front setup the same, but want to go with 19" wheels in the rear. I also have HKS springs installed.

The questions I have are:

1- Should I expect rubbing?

2- How would this setup effect my car's overall handling?

3- Would I need to adjust my speedometer?

4- Finally, how safe is it to run this setup and how would it affect its everyday driveability?

Thanks in advance for any input.

Riz
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Old Dec 2, 2004 | 10:57 PM
  #2  
rynberg's Avatar
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From: San Lorenzo, California
Why?

Anyway, to answer your questions:

1. Not with the correct offset and tire size.
2. Slightly increase oversteer and will reduce suspension precision (assuming wheel is heavier).
3. A 275/30 19 would be same diameter as you have now, which is already affecting the speedo.
4. Safe? You'll be even more likely to damage a wheel on a pothole than with the 18s.
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Old Dec 2, 2004 | 11:04 PM
  #3  
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Riz,

Depends on the tire. If you go 19x10, a 275-30-19 or 285-30 will have a similar diameters (275-30 is slighty smaller, 285-30 is slightly larger)to your current setup. The 275-30 and 285-30s have diameters of 25.5" and 25.7", respectively. This is the same as that of a 275-40-17 - a very popular tire on many an FD and smaller diameter than the 275-35 you're currently using (by a smidgen). The affect of the diameter shoudn't affect handling appreciably, but you'll have a pretty short sidewall in the rear (and shorter than your front's). This will result in a harsher ride in the back compared to previously and possibly an enhanced tendency toward oversteer near the limit. If you're using the car for basic or spirited driving, I would't think you'd have a problem.

The speedo error will be a tad smaller than your current setup by a couple of percent.

There may be a weight penalty, but again I doubt you'll notice it.

If you go to a 275-35 in a 19 then you'll gain another inch in diameter. This will likely result in fitment issues (rubbing, etc.).

Gene

PS- If you need a home for the rear K58s, let me know
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Old Dec 2, 2004 | 11:26 PM
  #4  
Farhan's Avatar
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Thanks for the help guys. The reason I'm going with 19" wheels in the rear is because the front and back left wheels were damaged in a minor accident. The insurance company decided to pay me to replace instead of fix the rims, therefore I decided I'd rather change it up a bit and get 19" wheels.

gfelber- If you're insterested in the rear k58s the back right is in great condition and the back left can easily be fixed by kinesis. I'll probably be looking to sell in a lil bit so if you'd like, I can definitely keep you updated. Let me know.
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Old Dec 2, 2004 | 11:42 PM
  #5  
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Originally Posted by Farhan
Thanks for the help guys. The reason I'm going with 19" wheels in the rear is because the front and back left wheels were damaged in a minor accident. The insurance company decided to pay me to replace instead of fix the rims, therefore I decided I'd rather change it up a bit and get 19" wheels.

gfelber- If you're insterested in the rear k58s the back right is in great condition and the back left can easily be fixed by kinesis. I'll probably be looking to sell in a lil bit so if you'd like, I can definitely keep you updated. Let me know.
I'm interested! PM me when you're ready. Pics would help too.

Thanks,


Gene
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Old Dec 9, 2004 | 04:05 PM
  #6  
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From: Houston
I have a quick wheel question. I am currently running a 18x8.5 and 18x9.5 3pc Enkei Aegis 3pc wheel with a 225 40 front and 275 35 back on a Ebach pro kit with no issues of rubbing. I have had these rims a while and looking for a change.

I am now looking at a 19x8.5 42mm offset and 19x9.5 42mm offset with 245 35 and 275 30, should I have any rubbing issues? Do you suggest a different offset?

Also the Enkei's and tires have less than 500 miles great staggered look anyone interested? Email bcaffey630@aol or call 281-413-9697


Originally Posted by gfelber
Riz,

Depends on the tire. If you go 19x10, a 275-30-19 or 285-30 will have a similar diameters (275-30 is slighty smaller, 285-30 is slightly larger)to your current setup. The 275-30 and 285-30s have diameters of 25.5" and 25.7", respectively. This is the same as that of a 275-40-17 - a very popular tire on many an FD and smaller diameter than the 275-35 you're currently using (by a smidgen). The affect of the diameter shoudn't affect handling appreciably, but you'll have a pretty short sidewall in the rear (and shorter than your front's). This will result in a harsher ride in the back compared to previously and possibly an enhanced tendency toward oversteer near the limit. If you're using the car for basic or spirited driving, I would't think you'd have a problem.

The speedo error will be a tad smaller than your current setup by a couple of percent.

There may be a weight penalty, but again I doubt you'll notice it.

If you go to a 275-35 in a 19 then you'll gain another inch in diameter. This will likely result in fitment issues (rubbing, etc.).

Gene

PS- If you need a home for the rear K58s, let me know
Attached Thumbnails Staggered FD setup (18" front, 19" rear)-dsc00029.jpg   Staggered FD setup (18" front, 19" rear)-dsc00031.jpg  

Last edited by Rx7pimpin; Dec 9, 2004 at 04:16 PM.
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Old Dec 9, 2004 | 04:28 PM
  #7  
rynberg's Avatar
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Originally Posted by Rx7pimpin
I am now looking at a 19x8.5 42mm offset and 19x9.5 42mm offset with 245 35 and 275 30, should I have any rubbing issues? Do you suggest a different offset?
Those offsets should be ok but better tire choices to minimize rubbing would be 235/35 19 and 265/30.
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