takahashi

Bring it on!

Event O'Neill Sandown - 9 March.

POST RACE ROUND UP: Fantastic turn out. 3 Ferrari F430s, and 3 RX8s .
8000rpm, astro, ILIV48 and myself had fun tailgating and passing all the Porsches.

Video: http://alwstudios.net/rx8club/taka/s..._track_day.avi

Winton RX-8 and friends day - 20 March

It has to be a good outing - a causal function that have plenty to track for all of us

See other thread.

Video:
MIRX*8 http://rx-8.harrisfamily.id.au/side...im/winton2.mpeg <--- this :rocks:
Taka http://alwstudios.net/rx8club/taka/T...on-20-3-06.mpg

HSCCV Winton day 30th April

Open to all car club member and expect a lot of VTEC power there. All general good fun.

www.hsccv.org.au



After that I have to toss my semislick and get a new set

astro

Hmmm... see how things go after Winton track day. IE... if I am that pathetic... I'll skip April 30.

mirx*8

And what if your'e not Astro?.....i feel the same way...lets see what happens...I may get addicted....

astro

Hmmm... it is kind of addictive just thinking about it. I am keen... though.

takahashi

After all these we can hold some "TA" meetings (Trackie Anonymous)

ILIV48

You should not do this to me Mr Taka. You know I cannot resist

astro

Today's session was very theraputic. Great day... best fun I've had all year (hope it keeps getting better!). I've never drank so much water driving a car until today . Winton track day has been advised by the doctor for my next TA session.

takahashi

Today was great... I love my Tein. There is so much control and my mid corner speed is so great, especially under braking = no understeer.

The ride is so predictable and I used up from right hand tyre I think...

Picture up soon.

takahashi

Here they are

ILIV48

Hey there is a picture of my new intake

After you guys left my suspension failed again. The RX8 Bush blew out the underneath of the car never to be found again. I knew though it was not a 100% perfect fit, but hey at least it got me 25 laps! Eibach have been contacted and it would appear according to their R&D team the wrong specification Swaybar bush has been provided in all their kits... Ooops. I was just the first to really give it a good hard test (or should I say Matt was). They will send out the correct bushes next week.

Unfortunate for me as I will now have to go back to stock for the Winton day... Damn. With the sways it felt so good!

takahashi

Damn... that would relieve my pressure of a red MX-5 at my ***.

I order the right hand side semi slick They were done after all these left hand turn on the hot Sandown tarmac. It was 28 degree but the track felt 40+.

I did not improve on my time again but it is a combination of bad driving, traffic, worn semi, and hot weather. I am extremely constant and in clear laps I am within 0.5 second on each other and clearly just slower than the Ferraris and Clubmans. The bloody Porsches....

The tyre pressures should have gone down even more but I found my Tein is very good. Compensate everything and kept with my previous times.

The water temp ad oil temp is horrific. Water temp is 112 degree max even the cooling fan is on since lap 1. And the oil temp is 121 degree max with an additional MazdaSpeed oil cooler. This horrific number comes within 6 hot laps.

I have to mention that the ambient temp yesterday is 28 degrees.

astro have you got your lap time to aim for next time. I am sure it will be improved... even for me. I need new slicks

timbo

taka, I'm confused. Why are those numbers "horrific"? It's a pressurised cooling system and oil should be able to stand well in excess of 121°C

astro

Lap times will get better. Definitely there's room for improvements. After speaking to some trackie veterans, it's best to learn all aspects in driving & handling. I know which areas I need to improve. Lap times will come down by means of driving refinement. Boy! How fun was that yesterday?

I had a look at the footage of the Porsche Boxster S (before I had Matt in the car with me) in front of me and I reckon the RX8 is not a bad track car. I'll give you some footage and hopefully at Winton you can give me more tips. Got some footage of Matt's instructions and him driving my car. It's very informative as he talks about how to drive around Sandown. <<<--- PRICELESS.

BLOODY Porsche drivers! They left a mess on the first turn and nearly collected a cone. Phew!!! That would've ruined my front end in some sort of way. I have
the cone which I just avoided contacting coming into turn 1 on video. I think I was lucky... hahaha!

I am really looking forward to Winton and we'll make sure to keep it safe. Hope it's not gonna be as hot though. Car felt fine at Sandown with the high temps... just gotta be responsible and pit in after 4-5 laps and just cool off if temps are high.

We were actually parked in between the Ferrari and Porsche pits. How cool is that!!!!

In terms of speed... the Mazda boys did ok.

Ohhh... sorry to hear about that bushing failure ILIV48. Better luck next time.

takahashi

Oil temp is ok because I have the 2nd oil cooler.

Water temp is not. I am not happy running the car over 110 degrees

rotarenvy

depends where taka's sensors are. an oil sensor at the oil filter is pre oil-cooler (isn't it?) so your yet to see the effects of the second oil cooler. I was under the impression 130deg was the start of oil breakdown.

a temp sensor on the top radiator hose is after the radiator. so when the thermostat opens at 86 deg; 115 is 25deg higher than operating temp. in all honesty I'd say operating temp is more like 98deg. still water at 115 isn't going to keep the motor cool.

ILIV48

Maybe you should drive like me Taka... The oil bearly gets a chance to get warm

Have removed the front sway and put back the stock one. Eibach R&D have asked me to leave the rear one in for the next track outing as they would like to ensure it will not fail if given the chance (the front not breaking before the rear gets a chance)

With the Eibach rear sway still in and the stock front can anyone say 'tendency to oversteer'. Those skidpan days will come in handy up at Winton as from the last day of driving I can see the MX5 drifting every corner up there

It's certainly going to be exciting. God I hope it's not gonna be wet!

takahashi

I don't understand the oil cooler comment - I think the 2nd oil cooler is link in serial to the first - wat you are saying at all. EDIT: Yes 130 is the breakdown point, so I don't think I need to change oil after this track day.

RE: coolant temperature comments.

Everyone measure at the same point in Japan. Yes it is higher temp than at the bottom of the radiator, but you have this optimistic thinking I have nothing to say

EDIT: There maybe not much damage on the engine running full pace in this condition, but I had hard time to gain speed properly in this heat, comparing to the 100s of laps I did in cooler condition - in the same engine mod, and even coming out of the corner faster. Hey I just made an observation

timbo

taka, if you're concerned about damage due to high oil temps, you might want to use a synthetic oil capable of handling high temps. And if water temps are of concern, run your laps with the heater full on (not a/c, though )

Actually, I reckon you're suffering a gauge feedback effect, which is why some racing teams don't put too many gauges in front of the driver, just warning lights. You need to know what the gauge is telling you, and whether, based on where the sensor is, the information observed is meaningful.

rotarenvy

I'm not saying the sensors are in the wrong place. I have mine in exactly the same locations.

in regard to oil temps all I was pointing out is you reached 124deg before the oil coolers so hopefully your loosing 15deg across each one. so the return temp is close to operating temperature which is a good thing.

astro

I wonder how hot my coolant and oil temp got?

Car felt fine... and did not experience any PCM shutdown mode. All I know is that my body overheated sooner than the car.

Hmmm... maybe a "cool suit" is required if temps up in Winton is high. I think I need to bring 2 gallons of water with me. <--- Not for the car... FOR ME!

Seriously... if the car gets too hot... the PCM should shut it down and put it into limp mode. If it blows... it can be fixed!

takahashi

I have the warning light set 5 degree less than the MazdaSpeed gauges recommended.

Timbo I ALREADY have a radiator fan controller. I have turn the radiator fan into full speed from pit lane. Turning the heater does not do more .

BestMotoring in last October race the JDM sports cars in the 35 degree heat and set the warning light to 110 for water and 140 for oil. So I am not worry about the oil but the water.

The Honda runs much hotter in oil temp and they are fine. Their water temp is much better though.

Timbo I think my sensor are placed in the hottest area of the circuit and it is done in the precautionary purposes. It is nearly where all the other people put their sensors.

I am telling you I need a MazdaSpeed radiator

takahashi

Here it is the heat races from BestMotoring... if you like it is in Japanese.

http://www.step-hen.com/rx8/files/heatrace.WMV

astro

Taka,

Does the Mazdaspeed radiator allow the RX8 to stay on track for a longer duration?
How much does it reduce the temperature by compared to stock radiator?

I have also seen from the Motul catalogue with regards to coolant additive. I was wondering whether changing the coolant and keeping the radiator as it is would be beneficial. Anyone tried the Motul coolant additive? Perhaps it's a marketing gimmick... but it sure sounds good!

I might invest in one of those Mazdaspeed radiator if it's going to keep things cooler than stock. Man... I need to rob a bank. Who's coming?

ILIV48

Mate don't waste your money on the Mazdaspeed Radiator. If you want to upgrade the radiator look at the forum vendors here and look for Koyo Radiators. Cost is about 400 US dollars. The reports from the US guys are all very positive!

takahashi

Shipping an radiator from US is still a waste of money. Australia export Aluminum to US and Japan to make radiator for US.. what a joke.

I have contact here who is looking into getting one done. In fact, the guy in Hong Kong is seriously looking into it and he is willing to do the R&D for us. Save the $2000 for the MazdaSpeed 2 layer Alu, the same quoted for HK$2000 *AUD$360, in Hong Kong. There is a sub-division in Sydney and I am going to get it from them if proven sucessful.

Coolant additive is going to improve only a small amount. The thin single alu we have now is not capable to bring the coolant temp down back to the 90s or 100s in the situation we have on Monday. Even the turbo car have water temp lower than us...