EzeePzee Posted July 8, 2018 Share Posted July 8, 2018 Hi guys, Currently got some Enkei RPF1 alloys on my 350z, 10J in each corner. Tyres are 265/35/18 and 285/35/18 at the rear. Is there a better tyre width choice, or should I stick with the above? I thought about looking at 255/35 and 275/35 options on the same rims, but not sure if there is any benefit, or perhaps it may be detrimental dropping the width of tyres..? i presume it’s wise keeping the staggered front-to-back config, but don’t know how critical this is as I’ve not driven the car with any other tyres on. Note that I always use decent tyres, no budget. Currently have Yoko Advans on and always like Michelin or Goodyear’s too. Thanks Quote Link to comment Share on other sites More sharing options...
EzeePzee Posted July 11, 2018 Author Share Posted July 11, 2018 Anyone? Quote Link to comment Share on other sites More sharing options...
davey_83 Posted July 11, 2018 Share Posted July 11, 2018 I'd stick with 265's up front as, 255's might be too much stretch. Quote Link to comment Share on other sites More sharing options...
EzeePzee Posted July 11, 2018 Author Share Posted July 11, 2018 Thanks. is there a “requirement” to stagger the width to the rears? How big does this need to be? Quote Link to comment Share on other sites More sharing options...
davey_83 Posted July 11, 2018 Share Posted July 11, 2018 To satisfy the stability control ecu I think there is. Quick rule from what I gather is 2 sizes wider on the rear, as seen with the OE set up ie 225 Fr with 245 Rr. Quote Link to comment Share on other sites More sharing options...
Jetpilot Posted July 11, 2018 Share Posted July 11, 2018 I was always happy with a 275/235 combo, never suffered with understeer or lack of traction on the rear (inc track work) and that was on a v3 supercharged, personally i think thats over tyred and doesnt really offer any additional benefit, some dedicated track users like 245/255 on the front, so i would be looking at 275 rear and 245/255 front, but as davey says you will end up with a bit of a stretch on the front, but nothing severe Quote Link to comment Share on other sites More sharing options...
EzeePzee Posted July 11, 2018 Author Share Posted July 11, 2018 6 hours ago, Jetpilot said: track 6 hours ago, Jetpilot said: I was always happy with a 275/235 combo, never suffered with understeer or lack of traction on the rear (inc track work) and that was on a v3 supercharged, personally i think thats over tyred and doesnt really offer any additional benefit, some dedicated track users like 245/255 on the front, so i would be looking at 275 rear and 245/255 front, but as davey says you will end up with a bit of a stretch on the front, but nothing severe Is that on a 10j rim? Quote Link to comment Share on other sites More sharing options...
Jetpilot Posted July 12, 2018 Share Posted July 12, 2018 I have had 235's on a 9.5 and run 275's on 9.5, 10.5 and 11 in the past! Quote Link to comment Share on other sites More sharing options...
davey_83 Posted July 12, 2018 Share Posted July 12, 2018 Any pictures of the 235 on the 9.5j? Quote Link to comment Share on other sites More sharing options...
shaun350z Posted July 12, 2018 Share Posted July 12, 2018 Im running 10.5J (rear) and 9.5J (front) and running 275/40/18 and 255/40/18 I used this tyre calculator https://www.willtheyfit.com/ when calculating my tyre choice The key result is the speedo error which you want to keep as close +/- to the OEM tyre sizes, as the traction control is known to be a bit sensitive if wrong tyre sizes are chosen. Also worth to note the profile size will change the speedo error figure, as it changes the rolling circumference Quote Link to comment Share on other sites More sharing options...
EzeePzee Posted July 12, 2018 Author Share Posted July 12, 2018 So by the sounds of it then, a 255/35 and a 275/35 combo would be OK.. trying to understand if that’s much of a stretch on the fronts or not, but seems to be ok from guides online. Just don’t know if there is any benefit from doing it or not, or if there is a big tyre price / availability difference. Quote Link to comment Share on other sites More sharing options...
Jetpilot Posted July 12, 2018 Share Posted July 12, 2018 8 hours ago, davey_83 said: Any pictures of the 235 on the 9.5j? In the all encompassing wheel and tyre thread Quote Link to comment Share on other sites More sharing options...
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