215/65 on a W210 (replacing 215/55)
06-23-2008, 12:55 PM
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215/65 on a W210 (replacing 215/55)
I ran across a great deal on a set of 215/65 R16 Goodyear tires. I'd like to know if I'll run into rubbing problems on a 2000 E320. The stock tires were 215/55 R16.
According to http://www.miata.net/garage/tirecalc.html I'd be going from 25.3" to 27" in diameter. That will cause the speedo to be off a little, but I'm not concerned with that. I'd like to know if they will rub.
I'm running ET 37 wheels in place of the ET 41 wheels if that helps any.
Thanks,
Tad
According to http://www.miata.net/garage/tirecalc.html I'd be going from 25.3" to 27" in diameter. That will cause the speedo to be off a little, but I'm not concerned with that. I'd like to know if they will rub.
I'm running ET 37 wheels in place of the ET 41 wheels if that helps any.
Thanks,
Tad
06-23-2008, 01:18 PM
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1997 s320, 1997 e320
i think the rule of thumb is to be within 3% difference in diameter so the brakes work properly, not to mention traction control, cruise control, and i wouldn;t be surprised if you got a CEL with a transsmision speed sensor error because of the big difference in diameter. in your case the difference is over 6%, so you be the judge, could be just fine or you could have problems. i wouldn't take the risk though by trying to save a few bucks. i don't know about rubbing, but probably will.
06-23-2008, 02:21 PM
#3
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The
rule of error is for different tire diameters % front to rear therefore the different revs per mile and the problems with all the systems you mention.
He is talking about going taller front and rear so there will be no difference in how fast the rear tires spin compared to the fronts
nazrat the issue will be not the 1.7 inches taller tire and rubbing ,that you will be fine.The issue will be Pi*D the circumference of the taller tire.
51 fewer revolutions per mile is a huge change.Your speedometer is going to be way off(about 6.6%),the taller effective rear gear ratio is going the make the car feel very sluggish coming off the line.The added height is going to make it look awkward.
Especially when around other Benz's
I won't even go into the aerodynamics involved and the increase in Cd and aerodynamic lift,But if you feel like you are floating down the highway when you are going 75 mph + the speedo error.It is because you will be floating down the highway.
If you don't mind the above issues and the fact that it may look kind of like a jacked up toyota pick up truck
jump on the deal.
Personally I would wait and install some good Michelin pilot a/s with the proper size and avoid said problems.
ohlord
better tire tech link
http://www.1010tires.com/tech.asp
The plus side of doing what you think you want to do.You won't need to worry about speed bumps,high curbs,and driveway dips
He is talking about going taller front and rear so there will be no difference in how fast the rear tires spin compared to the fronts
nazrat the issue will be not the 1.7 inches taller tire and rubbing ,that you will be fine.The issue will be Pi*D the circumference of the taller tire.
51 fewer revolutions per mile is a huge change.Your speedometer is going to be way off(about 6.6%),the taller effective rear gear ratio is going the make the car feel very sluggish coming off the line.The added height is going to make it look awkward.
Especially when around other Benz's
I won't even go into the aerodynamics involved and the increase in Cd and aerodynamic lift,But if you feel like you are floating down the highway when you are going 75 mph + the speedo error.It is because you will be floating down the highway.
If you don't mind the above issues and the fact that it may look kind of like a jacked up toyota pick up truck
jump on the deal.Personally I would wait and install some good Michelin pilot a/s with the proper size and avoid said problems.
ohlord
better tire tech link
http://www.1010tires.com/tech.asp
The plus side of doing what you think you want to do.You won't need to worry about speed bumps,high curbs,and driveway dips
Last edited by ohlord; 06-23-2008 at 02:23 PM.
