Will’s Dual Duty Neptune GR86

[Will_]

Track day at Buttonwillow yesterday! Managed a new PB of 2:02.58, and I think P1 in 86Drive Challenge street class but not sure yet.

Also sorry for the awful video quality, switched GoPros in the middle of the day and forgot to adjust settings.

This lap was in the third session of the day, which strangely ended up being the fastest. In the morning sessions, the track seemed to have absolutely no grip, and due to Miatas sending themselves into the shadow realm at every corner both sessions were frequently interrupted.

I am still very confident I can manage a 2:01.5 or better with this setup, will just need the right conditions.

The Endless MX72 Plus pads only lasted 6 track days and 4000 street miles up front, rears are still fine. I ordered some CSG CP for the front. I will try an event with those front and MX72s on the rear, but if the bias feels too messed up will bite the bullet and get CSG rears as well.

[Pat]

Front pads only lasting 6 days on track is not very good longevity. I'm looking forward to seeing what you think of the CP pads. Mine should be on in about a month with my first track day around the end of March or mid April.

[Will_]

CSG CP pads installed today, took them for a minor bed-in drive and they certainly have a stronger bite than the Endless pads. Will try them out on track this Friday at Sonoma.

Looking at the Endless pads, I definitely could have gotten an extra day out of them, they measured between 5-6mm all around. Last place I want to run out of brakes is Sonoma though. In the attached photo you can see the inner pad (left side, or lower since these photos auto rotate) wore about 1mm more than the outer pad. Pretty typical as I understand for the OEM calipers. A little bit of taper from leading to trailing edge as well, I imagine due to the two equal sized pistons.

Also, here is my second best lap from Buttonwillow last week, but with much better video quality.

[Clipdat]

Surprised you were that tail happy with 245 width tires.

Nice lap, though. They don't care if you get a little "drifty" like that?

[Will_]

Originally Posted by Clipdat

Surprised you were that tail happy with 245 width tires.

Nice lap, though. They don't care if you get a little "drifty" like that?

Nah, not unless you’re doing big, wide angle drifts consistently. The Champiro SX2s seem to overheat after 3-4 laps, and get very slidy once they do so. They handle the heat well though, no issues with chunking/delamination/bad wear. Probably because they are basically a drift tire.

[Pat]

Originally Posted by Will_

Probably because they are basically a drift tire.

What makes you say that? I thought they were designed as a very high performance summer tire primarily for street use.

[Will_]

Originally Posted by Pat

What makes you say that? I thought they were designed as a very high performance summer tire primarily for street use.

Before the SX2 RS, the SX2 was the official tire for Formula Drift, they supplied teams with them. I believe they’ve sponsored Formula Drift for many years now.

[Clipdat]

Interesting. 200tw extreme performance summer seems like a strange choice to use as a drift tire but what do I know.



https://www.gtradial-us.com/blog/gt-...-championship/

[jflogerzi]

Originally Posted by Clipdat

Interesting. 200tw extreme performance summer seems like a strange choice to use as a drift tire but what do I know.



https://www.gtradial-us.com/blog/gt-...-championship/

Cheap and durable

[Will_]

Track day at Sonoma today. Had a solid first session and set a PB of 1:55.02. The conditions in the second session were also good, but there was much more traffic and I couldn’t quite get the lap I wanted in. In my third and fourth sessions I basically just spent the whole time sideways, which was fun but not very fast

Below is my best lap. Had I been able to make the 86Drive Challenge event tomorrow, this would have been a new Street class record, but unfortunately I had a previous commitment.

[Clipdat]

Now that was a hot lap! Congrats!

Very exciting, thank you for sharing.

[Will_]

Installed the TRD “aero stabilizer” today. Pretty easy to line up (as you would expect from an OEM part). Next up is an oil change/alignment/camber bolts/studs/spacers before my next track day, targeting -3.6F/-2.6R camber. I also ordered some 255/40/17 Kuhmo V730s from Walmart online for a great deal, $677 shipped. They will go on the 17x9.5 Apex’s for my next wheel/tire setup.

[Clipdat]

Love the aero stabilizer, had one on my ZN6. Were the installation instructions at least in English for yours?

[Will_]

Track day at Thunderhill West yesterday. It was quite wet and raining pretty much the whole day. I had two big spins (shamefully black flagging two sessions, including the one 86Drive Challenge only group) but luckily no damage, just some mud. Below is my best lap from a very wet session. I did have quite a lot of fun and definitely got lots of drifting practice, but need to work on my rain driving skills a bit more.

I also had some track prep service done before the day. Oil change, extended studs/5mm spacers, camber bolts and an alignment. Car currently is at 3.6F/2.6R camber.