NSR EVO Tires

[Audi1]

I was recently ordering some tires for the upcoming Trans-Am U2.0 series and I came across a new entry (at least new for me) from NSR that I hadn't noticed before; an EVO classic supergrip. It said on the package - "new material better performance". Sounds good to me! I like supegrips. So, I ordered a set of supergrips, EVO supergrips and ultragrips, just to see what might be in store for the new supergrip tire. They arrived yesterday and I'm just getting around to looking them over today. As far as I can tell, they're using a new molding process that eliminates the little inside dimple that a lot of us hate to deal with on these "grip" tires. That's nice, but the compound does not feel as sticky to me as the standard supergrips. So, I wanted to ask - does anyone have any experience with these EVO supergrip tires? If so, what do you think of them; compared to the older supergrips or to ultragrips?

Allan

[arroldn]

Allan, I have the new Evo SuperGrips on the #112 car in the SCCA Proxy. I should have tested the times before I made the gear change so I could really tell which made the difference. Now the time on my track is down 5.3 secs. The gearing went from 2.83 to 2.66. So how much is the gear ratio effecting the time? Not sure. Handles a little better to me. Next time I'll get a base with the regular tire before making the switch.

Did some digging before tire and gear change the #112 turned 20 laps in 56.80 secs after tire and gear change 54.71 secs. So how much was gear vs tire? Note when the car left for the 2018 series the car's best time was a 59.01 secs. Upon return it ran 20 laps in 56.80. So the tire got better as the series progressed. As noted last year the car got stronger and ended up 6th overall. Hope the tires come in this year as well. Sitting to far down the leader-board for my liking So if the gear gained 1 tenth maybe the tire another tenth.

[Eric P]

Are these "rubber" tires? Silicone tires? Are they different than urethane tires? If so, in comparison, are they better or worse than urethane?
Mostly we talk about stock vs urethane vs silicone tires. I guess I'm really asking, where do they fall into the spectrum?

[Audi1]

These are soft compound rubber tires.

[arroldn]

Eric when testing for the 2019 TransAm proxy I had 3 SCX Cudas 1 on rubber 2 on urethanes. All three cars were within .01 secs if each other. This is on Scaley track. Some would say rubber tires are quicker. I will find out when I test my up coming Ford vs Ferrari GT40 which is now on urethane tires. Doing motor swap now. Rubber tires on order.

[Vision34]

I had no idea they changed mold process we at our club run exclusively NSR super grip tires. With the truing process and the tire treatment they run fantastic. very grippy. Our club before setting on rubber put thousands and thousands of laps on other compounds and they were able to make rubber the fastest. With patience they run like real tires. But key word to them running well is PATIENCE!! When they come in they out perform all other types of compounds.

[Courtney s]

Vision 34 please share your tire truing and prep process. I need help with my proxy tires.

[Cgyracer]

Very interesting...I have never noticed this EVO designation for NSR tires. On the other hand I have only bought Ultragrips the last three years so I would not of noticed the Supergrip changes, I wonder if they plan to produce EVO Ultragrips? It is possible the EVO tire brand will take over eventually as most manufacturers like to slimline processes instead of having redundancy.

Rob

[steeveew]

The molding process seems better, they don't have the dimple in them.They seem very similar to super grips. I believe the are supposed to be between a super grip and ultra grip.On my track,they don't work as well as Supers or Ultras,but my track is weird when it comes to tires.
Worth a try in my opinion.


Steve

[Kevan]

Do these black Evo tyres true easier than the red ones ( which are very difficult to true!).

[Audi1]

I have never seen the red EVO tires, so I can't help you there. But, from the feel of the compound, I would say that they should true about the same as the old Supergrip tires. Just speculation at this point though.

[arroldn]

Truing is about the same. Advantage is no dimple in the tire that you are attempting to get out thus truing the tire a great deal.

[ZackM]

I have been wanting to try a set myself. But have not gotten up the courage yet, I can hardly get Supergrips working right!

Zack

[Brumos RSR]

They're working just fine.....in SCCA, Can Am, GT3 proxy.... I see a trend 😄

[War Eagle River]

Before we switched to silicone here, we raced with NSR tires. Supergrips performed the best on our track. We found that cleaning them with lighter fluid, then using NSR tire treatment, then wiping off with more lighter fluid after the treatment soaked in, would make them sticky. Then if your rules allow, a small wipe with lighter fluid during the race, sticky’d them back up again. We usually glued and trued as well, because the rubber tires would stretch. Going slow with the truing was key.

[chrisguyw]

Allan, a new mold, but, identical compound.......that said, all the popular rubber tires are made in relatively small batches, and depending on heat/humidity and the actual compound mix of the day, they do vary a bit in performance......as you know you can mount/glue/true 2/3 sets of identical tires and get varying results.

Cheers
Chris Walker

[ZackM]

This has definitely been my experience. When you get a good set you milk them for all its worth!

Zack

[Audi1]

Thanks Chris, that's what I was wondering - is it the same Supergrip compound?

[chrisguyw]

Allan, super and ultra compounds have not changed......just the new "Evo" name,... guess the marketing folks think it sounds faster..!!, and, will lead to more tire sales.

[Kevan]

So twenty months on, the signs looked so good, what's the long term verdict on the EVO's?

I don't think Ultra Evos are are as quick as the old treated Ultras and seem to ball up much easier.
What about Super Evos vs old treated Supergrips? As Supergrips were THE proxy tyre of choice are the Evos as good?

What I'm reading here isn't what I'm hearing at the moment.

...and what about the ****BLACK tyres?

[SuperSlab]

My experience has not been good. I find them terrible to true as they gum up and form little gummy balls while truing. I also find they do the same when running a number of laps. First few laps are fine but then as the tyres warm up they generate these little gummy balls and the grip goes away. This for both Supergrips and Ultragrips.

YMMV but I avoid them like the plague