I've heard people say this alot. Isn't 170ish still in the performance range of 10w30 oil?

Do you think the performance decreased because the oil gets too viscous? Even at a temp difference of say 50 degrees F? Just wondering as I have CWR oil coolers without the t-stat. It was a failure point that cost me my last engine. A previous forum member was running them like this without a problem. hmmmmmm

 

Why in hell would you run an oil cooler kit without a t-stat?

 

Rynberg, as long as your around there you'll be OK. I know In cold weather I had a real hard time keeping temp.

 

the way the CWR oil coolers are set up the t-stat is suspended in the engine bay, that is two lines come into a common point then split to another two lines, the way my oil lines came setup put some tension on the lines....one of my oil lines popped off, I wasn't sure what had happend and by the time I stopped, engine had run without enough oil. Lost engine.

A previous person I talked to had the same problem with his t-stat and removed it. In california weather his temps were still 180. The only time he saw his temps dip to 160 was on a long downhill coming down from the mountains. He stated that he was able to keep his temps "up" by blocking one of the oil cooler ducts without a problem (over 180). I found his question almost a year back on a search through the forum.

As far as I remember the R1/R2 T-stat is in the passenger oil cooler, and since the oil coolers are in series, it just bypasses the cooling effect of the one cooler still allowing the other one to cool. Isn't that correct?

 

Yep, that's why I didn't buy the CWC kit. The t-stat is mounted shitty and unacceptable to me. When you say the lines were under tension, doesn't the CWC kit use swivel fittings? I'm sure it does. You have to use a wrench on the fitting (blue) at the end of the line, and then turn the fitting end to the direction you need it (by hand). I didn't figure this out until Chuck told me how to do it....

 

Yea they are, but the lines where cut short....it just didn't seem to fit right no matter what we did.

It's hard to describe but it wasn't ideal.

 

will the oil cooler help lower the water temp?

i have a fmic and i want to track my car, and i don't want to run too hot. Im going to try to upgrade my oil cooler.

 

ek9220ps,
yes bigger oil coolers will help lower water temps. In a rotary the oil system not only lubricates but is responsible for removing between 30% and 40% of engine heat.
FWIW
Crispy

 

Yes it will help with water temps that was my biggest problem was running a V-mount setup, with oil coolers it works rather well,at keeping temps down.

 

http://www.nopistons.com/forums/inde...hl=oil+coolers

this usualy pops up whenever the oil cooler upgrade gets discussed so I figured I would put it up again. I plan on going with just one 25row mocal for when I get my gt35r, from all I've seen it should keep my oil cooler than a set of the stock r1/2's would. Priced it up and it looks like about ~450 to do this.

Bob

 

rynberg, How did your temps hold up at the track day?