RIX MR2

Re: RIX MR2 (Fast Eddie)

Mon, 20 Aug 2018 12:42:36 GMT

Always a good upgrade before a track day. See you soon.

Re: RIX MR2 (rikkir)

Mon, 20 Aug 2018 11:06:40 GMT

Wow, i haven't done an update in ages...
I've recently replaced brake rotors and brake pads and discovered the rear wheel bearings are stuffed...
https://www.youtube.com/watch?v=D6OM_wEjJw0&feature=youtu.be

Re: RIX MR2 (Eric)

Mon, 13 Feb 2017 00:12:06 GMT

I found my A050's were happy at 30psi all round hot. Any higher and they became slipery.

Ive also been experimenting on dropping the left side tyre pressures down by 1-2psi on tracks with more right hand corners. So far i have noticed a small improvement .

However these are not street tyres obviously.... its trial and error really

Re: RIX MR2 (EssDub)

Sun, 12 Feb 2017 23:30:51 GMT

There's science and stuff surrounding this...
Nitrogen + 32/36 on street tyres,
Nitrogen + 24/27 on R888s.

Negligible temperature difference after rounds.

'Air' + 32/36 ended up at 39/44 (overheated) after one session...

Things like sidewall thickness (ply), composition, etc. will all play their parts.

Re: RIX MR2 (Knightrous)

Sun, 12 Feb 2017 23:01:36 GMT

rikkir

What were the hot pressures then?

I never got around to playing with pressures at the event, so I'm not sure what they were hot.
The car was nice to drive so I didn't fiddle with it.

Re: RIX MR2 (mister2)

Sun, 12 Feb 2017 10:56:13 GMT

As with the pressures Knightrous is using, rears should always be around 3-4psi more than fronts for an MR2.

Re: RIX MR2 (rikkir)

Sun, 12 Feb 2017 00:18:55 GMT

B24
rikkir
Knightrous
I was running a cold pressure of 33 psi front and 35 psi rear with my RS-RR's on the advice provided by my suspension guy.

What were the hot pressures then?
Seems like they would be a bit high, but tbh i haven't really got a clue... I just hit the track and hope for the best lol.
Is there anyone on this forum that has any recommendations on tyre pressures for the track?

I ran RSRR at 32 hot on all four. It was ok. I don't think I would go any less.

Yeah, I think the fronts need to come up a bit, hopefully it'll reduce the understeer I was having...

Re: RIX MR2 (B24)

Sun, 12 Feb 2017 00:01:41 GMT

rikkir
Knightrous
I was running a cold pressure of 33 psi front and 35 psi rear with my RS-RR's on the advice provided by my suspension guy.

What were the hot pressures then?
Seems like they would be a bit high, but tbh i haven't really got a clue... I just hit the track and hope for the best lol.
Is there anyone on this forum that has any recommendations on tyre pressures for the track?

I ran RSRR at 32 hot on all four. It was ok. I don't think I would go any less.

Re: RIX MR2 (rikkir)

Fri, 10 Feb 2017 16:10:12 GMT

Knightrous
I was running a cold pressure of 33 psi front and 35 psi rear with my RS-RR's on the advice provided by my suspension guy.

What were the hot pressures then?
Seems like they would be a bit high, but tbh i haven't really got a clue... I just hit the track and hope for the best lol.
Is there anyone on this forum that has any recommendations on tyre pressures for the track?

Re: RIX MR2 (Knightrous)

Fri, 10 Feb 2017 16:05:35 GMT

I was running a cold pressure of 33 psi front and 35 psi rear with my RS-RR's on the advice provided by my suspension guy.

Re: RIX MR2 (Falcon)

Fri, 10 Feb 2017 06:24:48 GMT

Regarding the tyre pressures. Your hot pressures seem about right.
But maybe there was no heat in them when you attacked the hill.
Lakeside track up here can be very grippy.
I have seen tyres peeled off the rim.
But usually heavier cars.

Re: RIX MR2 (rikkir)

Wed, 08 Feb 2017 17:48:57 GMT

I finally got around to doing the video from Mallala back in August where i knocked 1.7 seconds off my previous best.
https://youtu.be/dozQ40cvYuE

Now I've just gotta get onto the Wakefield videos....

Re: RIX MR2 (rikkir)

Sun, 05 Feb 2017 17:48:01 GMT

I'm trying.....

Re: RIX MR2 (Danti)

Sun, 05 Feb 2017 16:40:43 GMT

Hope to see you again at the next event

Re: Mallala April 30 (rikkir)

Sat, 04 Feb 2017 13:44:02 GMT

I hadn't actually looked that closely at the pic. It certainly does look like it was almost off the rim. I'm pretty happy with the Federal RS-RSR's. Rear grip is excellent, I'd like to improve the front and reduce the understeer a bit though...