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997 turbo rims fit 996 turbo?

 
  #16  
Old 11-09-2009, 07:53 PM
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Tires

I have a 2003 TT with 997 Turbo rims. Work fine.
 
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Old 11-09-2009, 08:27 PM
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Ooooooooo, those wheels look really good on your blue car Viprklr.
 

Last edited by ReeknHavic; 11-09-2009 at 08:45 PM.
  #18  
Old 11-09-2009, 08:32 PM
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I think I've answered my own questions here.

First, I saw in an earlier post that the 997TT has an electromagnetic differential vs a viscous for the 996TT. Apparently that handles the tire size differential well.

Second, it's all about the tire diameter and # of revs per mile. I'm looking to put the new Hankooks on and found the following sizes to be even closer than my current stock tires;

Front 225/40-19 = 798 revs per mile
Rear 295/30-19 = 796 revs per mile

Diameter differential is exactly 1" from the stockers, so I think clearance wise I'll be ok as well.

That's as close as I'm going to get I think.

Thanks for all the replys!
 
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Old 11-09-2009, 08:34 PM
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Btw

Also, I have a used Fabspeed Gen 1 exhaust going on.

Hope I won't need earplugs!
 
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Old 11-09-2009, 08:47 PM
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Originally Posted by STL 996TT View Post
Also, I have a used Fabspeed Gen 1 exhaust going on.

Hope I won't need earplugs!
You won't after awhile

I had a Fabspeed second gen and I really liked it.
 
  #21  
Old 11-09-2009, 09:49 PM
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this has been asked by me and others before me.

Quite simply you need-

1. 235/35/19 in front
2. 315/25/19 in the rears
3. 7mm spacers in front
4. 15mm spacers in rear

you can get away with other options, but you MAY get rubbing or damage your dif
 
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Old 11-10-2009, 08:57 AM
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Originally Posted by STL 996TT View Post
I think I've answered my own questions here.

First, I saw in an earlier post that the 997TT has an electromagnetic differential vs a viscous for the 996TT. Apparently that handles the tire size differential well.

Second, it's all about the tire diameter and # of revs per mile. I'm looking to put the new Hankooks on and found the following sizes to be even closer than my current stock tires;

Front 225/40-19 = 798 revs per mile
Rear 295/30-19 = 796 revs per mile

Diameter differential is exactly 1" from the stockers, so I think clearance wise I'll be ok as well.

That's as close as I'm going to get I think.

Thanks for all the replys!
Let me know your thoughts on the Hankooks. I'm thinking about getting a set of the 997TT wheels on my 996tt as well now
Also post some pics when you do get them on.

Thanks
Paul
 
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Old 11-10-2009, 02:47 PM
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Originally Posted by sc_trojan View Post
this has been asked by me and others before me.

Quite simply you need-

1. 235/35/19 in front
2. 315/25/19 in the rears
3. 7mm spacers in front
4. 15mm spacers in rear

you can get away with other options, but you MAY get rubbing or damage your dif
+1

It's the tire and spacer sizes you need to be careful about to avoid problems with differential or rubbing.
 
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Old 11-10-2009, 05:54 PM
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I had an 05 Turbo S and put the 997 turbo wheels on with PS2's. Don't recall the front tire width but I went with a 315 in rear. Allan at Wheel Enhancement suggested i use 5 mm spacers all around with extended bolts so I bought them from him and never had any issues.

Sold the car last Thanksgiving day 08.
 
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Old 11-14-2009, 08:17 PM
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i put


1. 235/35/19 in front
2. 315/25/19 in the rears
3. 7mm spacers in front
4. 15mm spacers in rear
 
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Old 11-14-2009, 10:47 PM
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Wow, I have never really been a big fan of the 997 Turbo wheel design but some of the 996 Turbos on here with the 997 Turbo wheels look great!

-Alex
 
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Old 12-20-2009, 10:45 PM
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I have a set of of HRE's that were previously on a 997 NB on my 996TT.
235/35/19 fronts and 295/30/19 rears with 5mm spacers.
Have rubbing issues with my rears on the inner part. Thought about putting in 9mm spacers but am afraid that the tires may hit the outer wheel arches.

Any advise on this?
Also am not sure how the 315/25/19 can fit when there is so much rbbing issue with the 295/30/19.
 
  #28  
Old 01-22-2010, 01:20 AM
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I have a set going for sale soon. Let me know if any of you want to buy them.
 
  #29  
Old 01-22-2010, 01:55 AM
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Originally Posted by sc_trojan View Post
this has been asked by me and others before me.

Quite simply you need-

1. 235/35/19 in front
2. 315/25/19 in the rears
3. 7mm spacers in front
4. 15mm spacers in rear

you can get away with other options, but you MAY get rubbing or damage your dif
+1. This is the correct 19" tire combo for a 996TT (i'm running these but with 19" wheels built for a 996TT). You may have to play with spacers to get 997TT wheels not to rub. Call Wheel Enhancement as they have fit many 996TT with 997TT wheels and have the correct spacers and lug bolts.
 
  #30  
Old 05-11-2010, 04:13 PM
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I posted this in the 997 forum, but I'll post here too...I'm putting 2007 997tt 19'' rims on my 2002 996tt.

As is mentioned here, this is not just a plug and play switch as the tire sizes (height) need to match up for proper wheel rotation so that you don't overheat and wear out your center diff.

The short of it is I guess I need to find 315/25/19 sized tires for the rears right away. That significantly narrows the choices I have, and the best prices I'm finding are

Tire rack has PS2's for $566 each and Continental SportContact 3 for $452 each.
DiscountTire has Nitto Invo for $320 each (reasonable price but I know nothing about quality), Falken FK-452 for $384, Yokohom Advansport for $483 and PS2's for $513. I'm going to keep looking.
Ebay: not much here, Nitto's and Falken's are a little cheaper but I have no idea about their quality yet.

The long story is basically I need 315/25/19 on the rears and 225/35/19 ideally on the front, but 235/35/19 on the front is close enough. The problem is height and thus the corresponding rotational speeds which will cause overheating and wear in the center differential. The 997 car has a electromagnetic differential which can take a larger difference in tire height, but the 996 car has a viscous differential and the height of the tires need to be within 3/10 inch to avoid the overheating. The different tire heights are as follows:

Front:
235/35/19 25.5 (honestly I don't even know what measurement term goes here, this is per my call to tirerack)
225/35/19 25.2

Rear
315/25/19 25.2
305/30/19 26.2 (this is stock size for the 997, but the difference in height is too much to safely put on the 996, and of course all the great value tires are offered here only).

Basiclly I'm looking for a good value tire for street use to make something work here. I need new rear tires immediately, but the existing fronts are 235/35/19 and apparantly will only work with 315/25/19. HELP!
 

Last edited by MikeR397; 05-11-2010 at 04:23 PM.

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