Mazmart

iTrader: (12)

As stated above, we will be having multiple kits installed on the same day. We presently are making sure that data is being monitored so we can draw good scientific conclusions. Not all the cars have the front bypass mod but that shouldn't matter after they warm up. The sad thing is, that mod cannot be easily done and in it's absense some rotaries have been known to cook oil seals and there is also less than optimal rotor bearing supply (If the eccentric thermostat fails).

Paul.

TeamRX8

iTrader: (25)

no offense, because if enough people want to buy it and you can profit from their desire then that's our American way

I'm gonna sit back and enjoy the show ...

SilverEIGHT

Are you saying I may cook my oil seals or did I misunderstand that?

Mazmart

iTrader: (12)

Since 86 (When it was introduced) there have been occasional failures of the eccentric thermostat, When it fails it causes prolonged elevated rotor temps and less than optimal bearing supply. Whenever we rebuild one we modify that part.

The RE-medy oil pressure kit will only help in that type scenario.

Paul.

olddragger

iTrader: (3)

Team is in the audience!
We are honored to have you watch as we struggle through our research.
Please fill the evaluation form out and leave it at the desk--and if you would be so kind as to properly dispose your refreshment containers into the bins located at the exit door on your way out.
Please come again as we do live in America and we do have a choice!
OD

ASH8

Oh, and HAPPY NEW YEAR GUYS...You are just an Hour or so away...BEHIND...again!

TeamRX8

iTrader: (25)

edit: meh - too much to drink last night

whatever .....

ASH8

I just love email alerts...


Yeah, and I would like to see a race engine last for more than a few event or months (that is being VERY generous)...comparing the two is just ridiculous, any race vehicles engine life is in the extreme on the RPM band, road users are actually the opposite.

PhillipM

That and clean, fresh oil every few hundred miles....

madcows

Fresh, detergent\VI-less oil that is.

olddragger

iTrader: (3)

research on the track is invaluable but there are limits to the interpretation of that data for street use.
basic example---raca car is mostly (98% of the time?) running during open loop tuning. Street car shouldnt be doing that!

PhillipM

I'd imagine 99% of raced cars are running open loop 100% of the time.

olddragger

iTrader: (3)

hopefully not in the Pits or on the access roads!
OD

9krpmrx8

iTrader: (46)

Okay so I went to install the RE-medy OP kit and discovered I had a very slight leak at my oil thermostat si I ended up removing all my oil lines and resealed everything so I didn't get to install the OP kit but I did change the oil since I wanted to take a sample and I drained a ton out removing the lines.

I ordered some 09' filters from Mazmart but in the mean time I bought the new Mobil 1 filter listed for the 09' RX-8 at autozone (which had a sale on Mobil1 0W-40 BTW). Here are some pics so you can see the diff. I will install my RE-medy mod next weekend.

ASH8

Yeah good pics 9K , I just like to point out that the Mobil M1110 they say is for an 09 RX-8 is incorrect, it is the larger looking filter but it does not have the higher by pass rating that the genuine S2 09 filter has. It works on S1's fine, but not for S2....it will work...BUT..

The M1110 is actually for Mazda's V6 engines, and some 4 cylinders..
All Mobil has done is look at the filter Size and Not the BP Value.

A 1983 Mazda 626 does not have the Oil Pressure or Filter BPP the 09 RX-8 has.

Their RX-8 S2 application is wrong...and should be corrected.

Easy_E1

iTrader: (2)

Let me ask you all a question. Which is more important,, Flow (GPM) or Pressure (PSI)?

Remember your dealing with a fixed displacement pump.

dannobre

iTrader: (3)

Flow...you can have huge pressure with no flow at all.....

Easy_E1

iTrader: (2)

You must obtain an amount of flow, then restrict the flow to obtain pressure. When restricting flow what happens? Friction. What happens due to friction? Heat.

dannobre

iTrader: (3)

Trick is....by increasing the bypass pressure............. what kind of effect does it have on flow...and how much extra heat is involved

And what kind of effect does it have on the hydrodynamic flow through the bearing spaces......

Easy_E1

iTrader: (2)

The Oil pump is a fixed displacement pump. Only thing that will change the flow/GPM output of the pump is increasing or decreasing the rpm that the pump turns.
2000 rpm (X)=GPM. 5000 rpm (X+)=GPM and so forth with increased RPM/pump rotation comes increased flow.
Restriction does not reduce GPM. It only increases the pressure of the given GPM. And in doing so increasing pressure by restriction you increase heat in the fluid.
Pressure is not as critical a factor as flow is.

Easy_E1

iTrader: (2)

Now you come to a fine line between pressure and surface area. The area to which the fluid must pass.
That brings us back to creating PSI. How much PSI is needed to push the fluid into a small area? Remember that fluids can not be compressed and therefore increasing the amount of pressure needed to pass (X) GPM through a small, lets just say orifice, increases pressure and thus increases heat.
So increasing the pressure to try and push more fluid through the orifice at the same GPM will increase heat.
But is the heat that is being created by increasing restriction and in turn increasing pressure, more than the amount of the heat that the surfaces are creating by friction between themselves.
Is the fluid able to carry any heat away? Or is it increasing temperature due to restriction of flow? And is the oil cooling system capable of removing the extra heat created by the increase in pressure/restriction?

olddragger

iTrader: (3)

easy---flow is what it is all about from the start. The increased heat from the increased oil pressure by itself --imho-- is insignificant. The increased temps we are getting we think is from the increased flow scrubbing more heat out of the internals.
The 09's have the same oil channel size and internals clearances, but it's pressure is much higher than the earlier models.
Increased flow does scrub more heat away.
OD

9krpmrx8

iTrader: (46)

I wish someone would post up some data so I could compare it to mine with the single Fluidyne.

Here is some data from my road trip. Just so I can compare it to after I do the RE mod this weekend. As you can see, going from used 0W-40 to fresh 0W-40 made no difference in terms of pressure.

olddragger

iTrader: (3)

our group will have a lot at the end of the month.
Dude your oil is too cool?

9krpmrx8

iTrader: (46)

Yeah a little too cool but the thermostat doesn't let it get cooler than that. Plus I am taking readings after the cooler so I am sure the temp goes up quick when it enter the block. Also, the thermostat itself is getting airflow so I am going to mount it elsewhere and see what happens. According to Mobil1 160-165 is an okay operating temp.

But nonetheless I am keepin' an eye on everything. I am curious what my UOA will show, the oil looked pretty dark.