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Nitto NT05R 305/35/19 Rev per Mile

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3 replies to this topic

#1
someone

someone

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Based on the size, RPM should be in the high 750 range. However Jegs has them listed with a RPM of 738. Is this information accurate?

Has anyone measured the tire circumference or have the manufacturers RPM specs of the NT05R on 305/35/19 size?

I ask because if RPM is in fact as Jegs says, it would make the Nitto NT05R 305/35/19 compatible with the NT05R in 315/40/18 size since RPM dare very very close.

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Edited by someone, 16 July 2017 - 03:21 PM.

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#2
someone

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Decided to test fit them. .5in difference in diameter, 1.8in circumference difference (87.8in vs 86in). Rev Per Mile difference should be close to 15. This is how they look side by side. Has anyone tried tires with the this much difference?

Note that new Toyos R888r do have a .4in diameter difference, however fronts are taller than backs. In the case of Nittos NT05R rears (315/40/18 on the left) are taller than fronts (305/35/19 on the right).


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Edited by someone, 17 July 2017 - 08:56 AM.

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#3
Dsm_alpha

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Rears bigger than fronts is better than the opposite. When rears are smaller you get a wheel speed difference that makes the car always send power to front which is bad on ETS

#4
someone

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That is exactly what I thought. I wonder if our ATTESA AWD system only sends traction to the FWD Unit in the scenario where the rear wheels spin faster than the front. If thats the case, the a taller rear would not hurt as much as the opposite.




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