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for all of the "experts" giving out the 20mm offset bogus info

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Old 12-13-2002 | 03:23 PM
  #41  
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Would it be a good choice for me to go with Rear=18" and Front=19" Te37¡¯s for somewhat daily driven.

With the right offset and tire sizes will I experience any suspension problems in the long run?
Thanx
Alex
Old 12-13-2002 | 07:45 PM
  #42  
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We have even installed a 19x11 with a 295 rear tire on a 350 with no issues because the offset was correct ....
Luke,
Could you tell us what wheel , offset and if the tires you mounted were 295/30 or 295/35?

Thanks,
Bob
Old 12-13-2002 | 08:12 PM
  #43  
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Originally posted by Luke@tirerack
ok ... here are some facts ....

the OE wheel postions the center line of the wheel 1.25" inboard the mounting surface ... with 3.0" outboard and 5.5" inboard

9.5" 22mm offset postions the centerline .9" inboard of the
mounting surface ... with 3.85" outboard and 5.65" inboard

10" 40mm offset positions the centerline if the wheel 1.5" inboard the mounting surface ... with 3.5 out board and 6.5 inboard

as you can see with the 22mm offset wheel a large majority of the additional width is going to the out board side of the mounting surface (which will add undue torsional force on the bearings and change the scrub radius of the suspension) as opposed to the 10" 40mm offset which has a much better balance for the added width and will offer more tire/fender clearance.
a couple things:

1) only the track has 8.5" rims. and that is the rear only.

2) did you measure that 1.25" (32mm), or are you pulling the info from somewhere? like guessing the offset and converting to inches?

3) if you did measure the rims at TireRack, please tell me what the offsets you got for the non-track 18x8.0, the track 18x8.0, and the track 18x8.5 (if its not the one above).

thanks
Old 12-14-2002 | 05:28 PM
  #44  
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Luke, I like your example of 40mm offset versus 22mm offset for the rear wheels. Your example places the wheel closer to the suspension for the recommended 40mm -- is this closer placement an issue?

In any case, if you were to have 22mm offset on the front, putting a lot more of the tire to the outside I can see the steering becoming much more unstable/darty/sensitive. I don't know how much of that I could live with.

How about sticking with a 30mm offset?
Old 12-16-2002 | 04:06 AM
  #45  
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Originally posted by acid burn
Luke, I like your example of 40mm offset versus 22mm offset for the rear wheels. Your example places the wheel closer to the suspension for the recommended 40mm -- is this closer placement an issue?
No issue .... there is plenty of room inboard

Originally posted by acid burn
In any case, if you were to have 22mm offset on the front, putting a lot more of the tire to the outside I can see the steering becoming much more unstable/darty/sensitive. I don't know how much of that I could live with.
That is the result of changing the scrub radius as I have previously and repeatedly said ...

Originally posted by acid burn
How about sticking with a 30mm offset?
we are recommending 29mm-40mm offset on the front

Last edited by Luke@tirerack; 12-16-2002 at 04:09 AM.
Old 12-16-2002 | 08:11 AM
  #46  
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Originally posted by Luke@tirerack
No issue .... there is plenty of room inboard



That is the result of changing the scrub radius as I have previously and repeatedly said ...



we are recommending 29mm-40mm offset on the front
Luke, you have redeemed yourself in my opinion. Thanks for the info and the tolerance.

However, with a +22 up front do you honestly think that a mere 8mm (from the stock 30mm on the track models) makes a notable difference? Also doesn't going with a higher offset (greater than 30) in front increase the understeer that the car already has? Or do I have it backwards?
Old 12-16-2002 | 09:27 AM
  #47  
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Originally posted by sdpearso
However, with a +22 up front do you honestly think that a mere 8mm (from the stock 30mm on the track models) makes a notable difference? Also doesn't going with a higher offset (greater than 30) in front increase the understeer that the car already has? Or do I have it backwards?
Yes, I do think that it will make a difference it will also make the car more prone to tracking (following road irregularities) and twitchy feeling (bump steer). As far as the under steer by going inwards a little you are right (if you used the exact same tire and wheel size) because the Ackerman Angle would change but, when you counter with a wider tire and wheel it eliminates that issue.
Old 12-20-2002 | 07:22 AM
  #48  
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I've been running into lots of trouble finding the right off-set for the Volk GT-N 18x9 in front and 18x10 in back. After all the research, I still have conflicting offsets. Mackin Industries says go with 37 offset front and back. Where as Kenisis went with a 25 offset front and back. Kenisis had a 350z at SEMA with 18x9 and 18x10's. Who's right? I guess it really doesn't matter. It's only a 1/2" difference, right? If it will be lowered, I guess I should go with the 37 offset to make sure the wheels and tires won't rub the fender.
Old 12-20-2002 | 09:05 AM
  #49  
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I have to say Luke is a very knowledgable salesman and knows what he is talking about. I am sponsored by Volk Racing (Mackin Industries) and I told them I wanted the biggest lip in the rear. Well, anyway we were talking and he was telling me that I needed to role my fender in the rear. Tire size is 275x35x19. And everything Luke said they told me the same thing. I just wanted to share that and give Luke some backup for those who think he is wrong. Anyhow, good info Thumbs Up!

Thanks Luke for sharing vital information!
Old 12-20-2002 | 09:41 AM
  #50  
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Originally posted by Luke@tirerack


we are recommending 29mm-40mm offset on the front

for what size again??

and any wheel I order from tirerack, all sales associates will provide me with the "perfect" offset? Can you guarantee that a 17"x9" rim will have a tried and tested off set
Old 09-30-2003 | 11:48 AM
  #51  
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Question

Will VOLK RACING WHEELS come out with a 19 inch GT-N in the near future?
Old 09-30-2003 | 12:39 PM
  #52  
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niiiice...WOW did you ever bring this back from the dead
Old 10-01-2003 | 10:35 AM
  #53  
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wow!!! this thread was brought back from the dead
Old 10-02-2003 | 10:33 AM
  #54  
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i don't know, but i am running volk sf-winnings 19mm fronts and 17mm rears with a drop and rolled rear fenders and have no problems.

i also have 22mm fronts and rears on 19x9.5 and 19x10.5s.

these were the recommended sizes and offsets for these wheels if ya went with the sizes from volk.

-john
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