OK Guys/girls

I dont know why but i haven't seen any discussion in a thread dedicated to gauge readings. IE how hot is our oil getting, how hot is the coolant getting, is oil pressure affected by high g turns/stops etc. How hot is the oil getting during stop and go driving with a/c on and without. What temps does the fans come on and does it lower the coolant temp fairly fast. etc All you guys fest up with some readings here!!

I am looking at getting some gauges before my next track event. I sure wish more reasonabily price good looking dash pods were available. I may have to go with individual cup mount although I would prefer a pod. I AM NOT PAYING $500 for a dash gauge pod!
I dont like the A piller type so that leaves me with just the cups at present.

 

Another option: I'm waiting to see the Racing Beat three gauge pod they are getting ready to release.

 

come on guys yall fest up your knowledge on this
OD

 

Oil temp on track in S. florida weather is at the 250 degree level. Using 20-50 Valvoline racing oil. temp reading comes from the drain plug sensor in the oil pan.

On the street it runs 210 to 225 in traffic it can creep up. 185 on cool days and med. speeds and no traffic.

Pressure depends on the point of reading. As the oil leaves the engine to the oil coolers the pressure is over 100 psi. It never goes down, even in corners. I was shocked with the 250 and called Speedsource. Sylvan said that 250 and above is not uncommon. Just as a precausion, i use an additive that I get from Petit Racing in the gas to give extra lubrication in the engine.

Hope this answers your question.

Jay Goldfarb
Instructor with: NASA, BMW CCA, PBOC

 

do you run standard coolant?

 

Standard with a bottle of water wetter added. Water temp in not a problem. Don't have a seperate guage for water temp, but have taken several readings from the cam scan port to my palm.

Jay

 

Is the water wetter something like Royal Purple Ice coolant additive?

Anyone else have experience with that or have comments on use in the 8?

 

Thanks Jay, That info does help. I believe I would want cooler street and track temps if I can get them. Didnt you install a 3nd oil cooler?
Olddragger

 

I'm still waiting on my damn gauge pod, but my oil temp sensor is a addon to the oil filter pod in the engine bay

 

No third cooler. Where would you put it. Don't want to ruin the little amount of air getting to the brakes. Also, I have the Mazda Speed Nose and I also opened up the two bottom slits in the wheel well to increase the outflow of air.

 

jay I have done the same thing to the wheel wells(stock nose) also ran some front brake ducts thru them. Road ATlanta really heats your brakes.
I believe that fluiddyne(sic) makes a oil cooler the right size to mount in the middle of the nose, right below the a/c condenser. Its only 5 to 6 inches high 21-23 inchews wide and only 2 inches thick. If an turbo intercooler can go on the front with no problems then i think a low profile oil cooler can also.
I am going to run with this everyone. It will take me awhile but stay tuned.
olddragger

 

Oldragger:

Who sells Fluiddyne coolers. I may join you in this. I will also ask Cam at Pettit what he thinks about adding a cooler. These temps really shake me up at times.

 

it has been done. i think it might be in the dyi section.

if you dont find it send me a pm i will hunt it down.

btw, jay could you throw me a bone on this one???

https://www.rx8club.com/rx-8-racing-25/track-days-86675/

beers

 

MadDog added it: Custom Fluidyne Therm-HX 30816 oil cooler.

 

the thread i was refering to. solves lots of problems, oil cooling and oil changing. bigger cooler would be nice.

https://www.rx8club.com/showthread.p...ght=oil+cooler

now if i can just find the link for where he got it.

beers

 

summitt racing sells the fluidyne coolers
olddragger

 

Oil pressure varies and I don't know if it is significant. I only notice it drops when it is cold or low in volume while cruising on highway.

Oil temp is ok since i have a 2nd MazdaSpeed oil cooler - the max I get on the track is 123 degree Cel. (253 F). Normally it runs at 80-90 degree Cel (194) in congested traffic.

Now I think I have problem with water temp.

I see gauges as I track my car, the water temp goes up to 105-110 C very quickly and in a 32 degree day in Melbourne - I get over 112 degree (233F). That is not good. That is with the fan controller to switch them on at full speed since Lap no 1. .

In congested traffic, the fan controller is wonderful. It sits at 82 degree with fan turned on. But once it is off. - it can get to 98 degree until the ECU turn the fan on at 99 degree.

Hence I have thought changing to a high volume radiator and big as fan!

 

Taka--thanks for the info. I too believe it would be better to have an additional oil cooler.
I do wonder what is up with your water temps. Never,never had a problem with water temps(as far as I can tell) summer, winter, track, street, the water temp stock gauge stays at the same mark. I even went to a 65/35 mix and a bottle of redline water wetter and it only dropped 1/2 notch on the stock gauge. Matter of fact even on a hot 100F day here in Ga, if i dont turn on the a/c and the road is not congested my cooling fans dont even come on. Cooling fans have never come on on the track.
But I am ordering my auto tec pro comp gauges (or prehaps stewart warner) this w/e. Racing beat has said theres will be out in a couple of weeks but they will be mechanical and only the 90 degree sweep gauges. I want electrical and the 270 sweep.
stay tuned
olddragger

 

The stock water gauges WILL stay at the same mark.

It is SO USELESS that it rather not being there!

As a matter of fact. It does not move from 80 degree C to 100 degree C - I think it is not working! But it flips to the position at around 50 degree - and show in the CAN scanner but the coolant temp I measure at the gauges not correct until the termostat open at 82 C, since I put the sensor at the top tube.

 

why did they build such a great car then go cheap on the gauges? Man the wisdom ofsome people. and dont tell me a cost thing for Gods sake. anyway just got a aset of autometer pro comp gauges and i will get them installed asap
olddragger

 

Most likely Ford Marketing winning over Mazda Engineering. And these bafoons are also the same people that asked for a 4-port automatic I bet.

 

Don't know if this is relevant, from BMI Endurance Battle (20 minutes races in Tsukuba). The RX-8 had no oil temperature trouble (very high but stable reading) with one stock cooler but the water temperature was very high. This is without the license plate on. With the license plate on the water temperature was always over heating.

As for oil pressure fluctuations, it does occur on track. The best way (recommended by Spoon's CEO) is to use a smaller oil filter element and reinforce it using metal straps if that's what you call it.

 

You have missed or did not listen to the intro - it has "an option of MazdaSpeed oil cooler added".

I ordered one straight away after that Oct 2004 video.

To me the licence plate is ok (I have a very small one that the diamond opening is not covered). Thanks god that Australian have done something right not cars.

If I have a MazdaSpeed front - I don't think the situation is reversed. I think the radiation is on full capacity on the track.

It is not a bad radiator. I was cruising in the slow traffic when I saw the water temp hits 100 degree (today is a 18 degree C day). I turn on the radiator fan (with an ECU fan controller) and within 1.5 minutes - it goes back to 82 degree.

 

If anyone interested to see. I have a clip stored in d00nson's server (thx d00ny)

 

What EMS are you using, and how are you able to control the ECU fan?