Falken RT-615 vs Kumho MX Results!
Feb 26, 2007, 09:33 PM
#31
When you say you did a back to back to back comparisons that means you had access to both sets of NEW tires and would make a timed run then swap tires and make another timed run with the other tire? Then you looked at the data logger for grip data? Something like what was done here?
http://www.grassrootsmotorsports.com...5_tiretest.pdf
http://www.grassrootsmotorsports.com...5_tiretest.pdf
by back to back, i meant that i did the test many times without giving the tires much time to cool down to see at what point would they would jsut get greasy.
Apr 5, 2007, 01:07 PM
#32
According to Falkens website, the 615 255/40/17 is 27.5 lbs ...which is 3.5 lbs more per tire than the 235/45/17 MX....Wow that is a huge difference (and not in a good way)...
http://www.falkentire.com/rt615_sizes.html
http://www.falkentire.com/rt615_sizes.html
Apr 5, 2007, 03:07 PM
#33
According to Falkens website, the 615 255/40/17 is 27.5 lbs ...which is 3.5 lbs more per tire than the 235/45/17 MX....Wow that is a huge difference (and not in a good way)...
http://www.falkentire.com/rt615_sizes.html
http://www.falkentire.com/rt615_sizes.html
ehh... thats kinda expected but they are 1.5 pounds heavier than the 255/45/17's i run
Apr 6, 2007, 04:44 AM
#35
Has anyone had a negative experience / feedback on the MXs? Thanks
Last edited by cij911; Apr 6, 2007 at 05:12 AM.
Apr 6, 2007, 09:26 AM
#37
the main reason i got them is for drag racing...
taller tire, more squat, same sticky tire
they work greaaaat!
Apr 7, 2007, 04:21 PM
#39
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just FYI guys, the MX is running almost a decade old compound. it comes nowhere close to new tire technology, even though it was great when it came out. as for drag racing, using a stiff sidewall tire designed for handling is RETARDED
Last edited by RaNGVR-4; Apr 8, 2007 at 01:41 AM.
Apr 7, 2007, 11:12 PM
#40
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im w/ warrtalon on this one.... ur test is seriously flawed. if you autocrossed you'd see sometimes 'feeling' fast is actually slow, while slow 'feeling' laps put down quick times. 'feel' is very deceptive when it comes to tires.
its already common knowledge rt615 has superior dry grip/handling then the mx's as long as u are not doing drag launches. one, try autocrossing mx's then going to rt615. you'll see a drop in time. second the launch on rt615 will result in spin from hard sidewall which will cause more spins in second gear possibly too. mx's are just better for dragging. im sorry but as i said you should test more thoroughly.
its already common knowledge rt615 has superior dry grip/handling then the mx's as long as u are not doing drag launches. one, try autocrossing mx's then going to rt615. you'll see a drop in time. second the launch on rt615 will result in spin from hard sidewall which will cause more spins in second gear possibly too. mx's are just better for dragging. im sorry but as i said you should test more thoroughly.
Last edited by mifesto; Apr 7, 2007 at 11:18 PM.
Apr 8, 2007, 04:20 AM
#41
im w/ warrtalon on this one.... ur test is seriously flawed. if you autocrossed you'd see sometimes 'feeling' fast is actually slow, while slow 'feeling' laps put down quick times. 'feel' is very deceptive when it comes to tires.
its already common knowledge rt615 has superior dry grip/handling then the mx's as long as u are not doing drag launches. one, try autocrossing mx's then going to rt615. you'll see a drop in time. second the launch on rt615 will result in spin from hard sidewall which will cause more spins in second gear possibly too. mx's are just better for dragging. im sorry but as i said you should test more thoroughly.
its already common knowledge rt615 has superior dry grip/handling then the mx's as long as u are not doing drag launches. one, try autocrossing mx's then going to rt615. you'll see a drop in time. second the launch on rt615 will result in spin from hard sidewall which will cause more spins in second gear possibly too. mx's are just better for dragging. im sorry but as i said you should test more thoroughly.
Apr 8, 2007, 09:05 AM
#42
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well wat stops me going w/ the MX in my opinion is there i am running 17x9 wheels and 255/35/17 is optimal. mx's dont come in that size, while rt615 does. if it was purely street, i think both tires are solid choice (although mx will feel slightly less nimble on spirited driving)
Apr 8, 2007, 10:44 AM
#43
OK...again if I were on a wider rim I would go with the 255/40/17 615, but I am on the stock 17x8 BBS that come with the MR. So with that information, do you think I would still be better off going with the 245/45/17 Falken 615s which weigh 3.5 # more per tire than the 235/45/17 Kumho MXs? I also wonder if the 245/45 will look a bit tall compared to the stock 235/45...
Thanks for your help....
Thanks for your help....
Apr 8, 2007, 11:33 AM
#44
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I have ran a set of MX and two sets of 615. The MX is a great street tires with a softer sidewall for comfort, however...its a tad noisey. I also tracked with the MX and it gets a little greasey after 20mins hard use. The 615 grips very well but it seems to wear out a bit faster than the MX. If you are looking for a long lasting street tire and not ultimate performance then I would go with the MX. BTW, I am running on 615 so there you have it...I like the 615 better. 
Tom
Tom
Apr 8, 2007, 12:09 PM
#45
I have ran a set of MX and two sets of 615. The MX is a great street tires with a softer sidewall for comfort, however...its a tad noisey. I also tracked with the MX and it gets a little greasey after 20mins hard use. The 615 grips very well but it seems to wear out a bit faster than the MX. If you are looking for a long lasting street tire and not ultimate performance then I would go with the MX. BTW, I am running on 615 so there you have it...I like the 615 better.
Tom
Tom