IAN

iTrader: (3)

I was thinking of removing my oil cooler thermostat and plugging the hole. Anybody do this? Is this a good idea? I don't drive the car in the winter. I am looking for ways to keep the car cooler or improve the cooling since the car just gets too hot during track days. (Just got the oil cooler flushed)

Thanks.
Ian

signofinfinity

there is a blanking pellet for it.... the bi letallic strip is eliminated. I have it and been using it for ages. I machined a pellet to replace the valve....

George

IAN

iTrader: (3)

Sorry I am lost to what you mean. You can buy a blanking pellet to replace it?

maxcooper

I think one of your is referring to the oil thermostat pellet in the front of the eccentric shaft and the other wants to disable the thermostat in the oil cooler.

The eccentric shaft pellet fails sometimes and is replaced for that reason. I don't think it has any effect on cooling.

In general, I don't think disabling the thermostat in the cooler will have much/any effect (once it is open, it is open, though it might flow better without the thermo in there). Having the oil too cold is no good, either.

-Max

rotarypower101

iTrader: (1)

Wouldn’t it be more logical and beneficial to upgrade the size of the oilcooler. Or simply clean it out and straiten the fins ?

There are some reasonable services that will reman your coolers, and I hear they are pretty good.

signofinfinity

yeh max... i was refering to the ecentric shaft one! sorry i confused you... doh... dumb ***!

i agree though... having the oil too cold can cause you issues.....

Thanks for the clarification max

George

IAN

iTrader: (3)

Thanks for the input guys. And yes I was refering to the oil cooler thermostat

I had it flushed and I did straighten a few fins. It was in pretty good shape. I was just wondering what else I could do to improve cooling. And buying a new oil cooler is beyond my budget for this year. Or for the next coming years
Thanks

rx7tt95

If it's for track days only, just remove the thermostat. There's no need for it. It will take longer to warm up. This is doubly true for aftermarket setups that use the Mocal thermostat as they've been known to fail quite regularly. Do upgrade to larger coolers. It'll help.

The other cooling option is to drill holes in the thermostat or remove the center completely. The thermostat doesn't open fast enough to catch the quick rise in coolant temps at WOT. It's cyclical and just becomes worse and worse, with the temps rising steadily and taking quite some time to cool down. Not too much of a problem on a very lightly modded car but a single turbo setup pushing 350-400rwhp+, it can quickly overheat. I find that a thermostat with five holes drilled around the perimiter works well on the street and still allows the car to get up to temp quickly and maintain temp. Without the center portion, the car would run TOO cold in anything but 85+ temps here in Florida. If it rained, forget about it!

There's a third secret cooling mod but I'm sworn to secrecy over it

bcool

I did it to one of my coolers on my 20B setup, i just got a 10MM bolt in there with JB weld on the face of the bolt and the nut and just made sure it was tightened down. I just went in with a socket in each side and got it tight.

2a+RoN

Here in AZ, think it would matter to take not use one? I've got a couple monster oil coolers I'm running, but it is few and far between that we have many cold mornings...

rx7tt95

Depends on how you drive it. I'd consider acquiring an oil temp gauge to see what your oil temps look like without the thermostat.

2a+RoN

yeah, temp gauge is a must.

hIGGI

iTrader: (7)

IAN

i got best results with running 2 oil coolers, keeping thermostats in both of them.....

GUITARJUNKIE28

no thermostat = bad

Wankel7

It is not a thermostat! It is a bypass pellet.

At 140F it opens. At 140F it closes. Obviously, the oil does not stay near 140F.

I don't see what the big deal in pluging it is. As long as when you remove it you plug it or else not much oil will find its way thru the cooler.



https://www.rx7club.com/showthread.p...ght=oil+cooler

James

GUITARJUNKIE28

do a search on it. you want the oil at a regulated temp--NOT just as cold as possible.

IAN

iTrader: (3)

Hey higgi. Were did you find the room to mount two oil coolers?

IAN

iTrader: (3)

Yup this is what I am talking about. I read that no thermostate (Coolant) is bad.

Thanks.

Ian

IAN

iTrader: (3)

I see. thanks for you input. I did not see anything on the search about this previouse to my post.

GUITARJUNKIE28

it's not rotary-specific.

do a google search for this stuff and i'm sure you'll come up with all sorts of stuff.

hIGGI

iTrader: (7)

We have 4 FCs here which all run FMIC and 2 stock oil coolers.

mine hacked install




http://rx7cz.net/photos/workshop94/