nitto 555R
Thread Starter
Racer
Joined: Feb 2007
Posts: 313
Likes: 0
nitto 555R
I have a 2007 C6 with A6 and it is tuned and setup running Michelin PS2’s that have a 26.9 inch diameter ( 285/35ZR/19). I want to use Nitto 275/40ZR 18 inch 555R tires for use at weekend visits to local drag strip. The 18 inch Nitto tires have a 26.89 diameter.
I want to avoid having to go in and reset the computer for a different tires so I am interested in the 18 inch instead of going 17 inch. Given these diameters are almost the same will this work on the car without screwing up the shift points?
I have to use these tires to drive to the strip which is about 60 miles away so the choice is 555R.
Does anyone have any actual experience using these tires on a C6 with an A6?
I want to avoid having to go in and reset the computer for a different tires so I am interested in the 18 inch instead of going 17 inch. Given these diameters are almost the same will this work on the car without screwing up the shift points?
I have to use these tires to drive to the strip which is about 60 miles away so the choice is 555R.
Does anyone have any actual experience using these tires on a C6 with an A6?
Team Owner
Joined: Feb 2001
Posts: 27,226
Likes: 112
From: Short Hills, NJ
I have a 2007 C6 with A6 and it is tuned and setup running Michelin PS2’s that have a 26.9 inch diameter ( 285/35ZR/19). I want to use Nitto 275/40ZR 18 inch 555R tires for use at weekend visits to local drag strip. The 18 inch Nitto tires have a 26.89 diameter.
I want to avoid having to go in and reset the computer for a different tires so I am interested in the 18 inch instead of going 17 inch. Given these diameters are almost the same will this work on the car without screwing up the shift points?
I want to avoid having to go in and reset the computer for a different tires so I am interested in the 18 inch instead of going 17 inch. Given these diameters are almost the same will this work on the car without screwing up the shift points?
Your shift points and even ABS/TC/AH should all be fine as well as long as long as you still have the stock TPMS (tire pressure sensors) in the new wheels.
and pulling it off without issue as well. 
Thread Starter
Racer
Joined: Feb 2007
Posts: 313
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low speed rallye
glad to hear that. i have considered the Nitto NT05R as an otion. my concern is that the NT05R may not meet my need for low speed coursing. our club gets involved in those events and i want to have rear tires to use for both type of uses instead of the PS2's. they are too expensive to wear out.
is anybody using NT05R tires for low speed events
ps, i will be using the correct tpms.
is anybody using NT05R tires for low speed events
ps, i will be using the correct tpms.
Race Director
Joined: Oct 1999
Posts: 13,298
Likes: 14
From: Somers NY
That set up should be just fine at your level...there's a guy I race with named 'jpee' (he posts in this section from time to time as well) that has a 2005 A4 C6 LS2 with a Vararam, thermostat and tuning and he hooks well on 305-35-18 Nitto 555Rs.
Your shift points and even ABS/TC/AH should all be fine as well as long as long as you still have the stock TPMS (tire pressure sensors) in the new wheels.
"YES" I use 305/35x18" Nitto 555 .. I have a stock converter and my 60' are 1.860 - 1.900 I never have traction problems, or get ANY codes on my DIC...
In fact I do not have any air pressure sensors on the rear 18" wheels, and I drive app 100 miles to the track.. about 1/2 way there I'll get a DIC message telling me my Air Pressure Sensors are not working.. I just rest the DIC, and have no problems using the above set up...
That's a safe way to look at it but just for the record, plenty of us drive A LOT further than that on other supposedly 'less streetworthy' drag radials (M/T, Hoosier, BFG etc.) and it works out just fine. I've even seen some driving to/from the track on bias ply/DOT slicks and pulling it off without issue as well.
Your shift points and even ABS/TC/AH should all be fine as well as long as long as you still have the stock TPMS (tire pressure sensors) in the new wheels.
"YES" I use 305/35x18" Nitto 555 .. I have a stock converter and my 60' are 1.860 - 1.900 I never have traction problems, or get ANY codes on my DIC...
In fact I do not have any air pressure sensors on the rear 18" wheels, and I drive app 100 miles to the track.. about 1/2 way there I'll get a DIC message telling me my Air Pressure Sensors are not working.. I just rest the DIC, and have no problems using the above set up...
That's a safe way to look at it but just for the record, plenty of us drive A LOT further than that on other supposedly 'less streetworthy' drag radials (M/T, Hoosier, BFG etc.) and it works out just fine. I've even seen some driving to/from the track on bias ply/DOT slicks
and pulling it off without issue as well.
Team Owner
Joined: Feb 2001
Posts: 27,226
Likes: 112
From: Short Hills, NJ
Team Owner
Joined: Feb 2001
Posts: 27,226
Likes: 112
From: Short Hills, NJ
Thread Starter
Racer
Joined: Feb 2007
Posts: 313
Likes: 0
tire sise
I can find a 18 x 10.5 also and thought that might give me more optinos for tire width in the future. The 18 x 10.5 is a +58 mm offset. please confirm that this size works in a stock C6 body style.
Last edited by youout; Mar 30, 2011 at 06:30 AM.
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Tech Contributor
Joined: Jul 2002
Posts: 14,949
Likes: 263
From: St. Louis, MO
St. Jude Donor '08
I have a question in whether anyone is using them on the drag strip and what their results are.
Team Owner
Joined: Feb 2001
Posts: 27,226
Likes: 112
From: Short Hills, NJ
so for the Nitto NT 555R - 275/40ZR /18 the 18 x 9.5 is the right C-5 rim to use? Nitto recommends a minimum of 9.5 width.
I can find a 18 x 10.5 also and thought that might give me more optinos for tire width in the future. The 18 x 10.5 is a +58 mm offset. please confirm that this size works in a stock C6 body style.
I can find a 18 x 10.5 also and thought that might give me more optinos for tire width in the future. The 18 x 10.5 is a +58 mm offset. please confirm that this size works in a stock C6 body style.
As for 10.5 wide, they might be a little wide for 275s but will allow you to use wider tires in the future if need be.
18x10.5 on a 58mm offset (which is the stock/OEM size of rear C5 Z06 rims) will fit on a base C6 but they won't sit exactly right in the wheel wells, at least not as well as the base C5 18s (18x9.5 on a 65mm offset) will.
Tech Contributor
Joined: Jul 2002
Posts: 14,949
Likes: 263
From: St. Louis, MO
St. Jude Donor '08
Yes, that 18x9.5 should be perfect for those 275s.
As for 10.5 wide, they might be a little wide for 275s but will allow you to use wider tires in the future if need be.
18x10.5 on a 58mm offset (which is the stock/OEM size of rear C5 Z06 rims) will fit on a base C6 but they won't sit exactly right in the wheel wells, at least not as well as the base C5 18s (18x9.5 on a 65mm offset) will.
As for 10.5 wide, they might be a little wide for 275s but will allow you to use wider tires in the future if need be.
18x10.5 on a 58mm offset (which is the stock/OEM size of rear C5 Z06 rims) will fit on a base C6 but they won't sit exactly right in the wheel wells, at least not as well as the base C5 18s (18x9.5 on a 65mm offset) will.
Thread Starter
Racer
Joined: Feb 2007
Posts: 313
Likes: 0
65 mm
I have been searching for 18x9.5 with a +65mm offset. all i can find are +56mm offset. where can you find 18x9.5 with a +65mm offset?
Also I have looked at what offset is and do not see how a lower offset will cause any problems with the body. Any thoughts on this?
Also I have looked at what offset is and do not see how a lower offset will cause any problems with the body. Any thoughts on this?
Team Owner
Joined: Feb 2001
Posts: 27,226
Likes: 112
From: Short Hills, NJ
) and you'll be fine. Unfortunately no, only their newer NT-05R comes in a 19" and that's a big 345-30-19.
Melting Slicks
Joined: Aug 2006
Posts: 2,167
Likes: 11
From: Powell TN
Cruise-In VIII Veteran
glad to hear that. i have considered the Nitto NT05R as an otion. my concern is that the NT05R may not meet my need for low speed coursing. our club gets involved in those events and i want to have rear tires to use for both type of uses instead of the PS2's. they are too expensive to wear out.
is anybody using NT05R tires for low speed events
ps, i will be using the correct tpms.
is anybody using NT05R tires for low speed events
ps, i will be using the correct tpms.
Thread Starter
Racer
Joined: Feb 2007
Posts: 313
Likes: 0
i just want to be very sure of this before I spend the money. where i live there are not many I can talk to about this type of change to the car.
Last edited by youout; Mar 31, 2011 at 05:53 AM.
