Gen3 3sgte oilcooler removal q's?

[BBBrad]

Im in the process of fitting a very nice thermostat controlled external oilcooler to my gen3. What I want to know is what is the best way of sorting out the water lines that used to go to the oe cooler? I got a couple of options I think.
-Block both fittings with a cap. The one outa the block (under the waterpump), and the one that comes off the pipe running under the ex manifold.
-Join the two with a peice of hose.
-Join with a peice of hose with a restrictor inplace to simulate the oe cooler.
Whats the best option???

[RunningRich]

I'd say don't remove the factory oil cooler. Don't forget it also helps warm up your oil on cold mornings.

[fivebob]

Whats the best option???

Like RunningRich says, the best option is to leave the stock cooler in place.

[BBBrad]

Thanks for the reply guys. I know you guys know what youre talking about. From all the research I done that the oe cooler is very good at its job and the most reliable. I'm just paranoid about this area in particular. I'm not dreaming here and will be having 400+hp at the crank, The car will be doing some track work aswell as drag and street. I just want peice of mind that the oil will be looked after, esp at the track. I havent done what the americans seem to do and just run an oilcooler with no type of temp control. I also wanted to try and increase the total volume of the oil system to more than the <4liters. So back to the origional problem, what to do with the water lines?

[fivebob]

I think you maybe misinterpreting what is being said, what I mean is leave the stock cooler in place and add the external cooler as a separate system.

That way you get the best of both worlds, fast warm up and good cooling capacity for what, IMO, is essentially an oil cooled engine.

[KinLoud]

Hi Brad,
You could put a sandwich block between the oil filter and the sump and then run lines to your aftermarket oil cooler. The oil would then pass throught the block mounted oil cooler as per normal.
If you do decide to remove the factory oil cooler and bolt a sandwich plate in its place...
From what I can work out, the water comes out of the block just forward of the factory oil cooler, passes through the oil cooler and then joins the pipe that returns water from the heater (and throttle body in my gen 3sge) to the engine.
If you block it off I don't think you will have a problem.

Ken
Ham
021 408 863

[IH8TEC]

did you get my text about the 72deg, my memory is shit? you figured out how much the oil cooler will hold volume wise?

[BBBrad]

Yes I think i'll block the pipes off. The cooler holds 1.5 liters of oil and the thermo unit has 71C on the top under the paint and 71 on the inside also. Do you all think this maybe too cold? I thought around 80 was normal?

[fivebob]

Normal is around 5-10deg above water temp, so about 95-100degC on the stock thermostat, certainly wouldn't want it colder than 85degC.

[BBBrad]

Thanks for that fivebob.

[BBBrad]

Hey fivebob, I just been looking through an old rx7 manual I got, Seems the factory thermostat is set to open at 158f or 70c. I thought this is probably just because its a rotary or something, but then I done a search and com across this...
http://cgi.ebay.com/ebaymotors/Hayden-T ... enameZWD1V
All the items i find seem to start opening at 160f or71c. Maybe the 71c thermstat I got will be ok? What do you think?

[BBBrad]

Ok, done more research. Got two will known books here.
Maximum boost...says oil to be no cooler than 150f/66c
Forced indution tuning...no less than 185f/85c
Now, ones in my range and ones out. Who do i beleive???

[vvega]

I think you maybe misinterpreting what is being said, what I mean is leave the stock cooler in place and add the external cooler as a separate system.

That way you get the best of both worlds, fast warm up and good cooling capacity for what, IMO, is essentially an oil cooled engine.

i thought that was the only way to do it properly and not lose oil pressure
i have a thermo switch external pump and cooler that is going into the 1uz
lots of advantages bbbrad
no need for high pressure lines
and you can get some very high flow pumps

you can also add in a to help keep things clean

best of luck

v

[BBBrad]

Id be interested in seeing some info on a setup like that. Anything?

[vvega]

trd sells a external oil cooler kit for many of there cars and that is what it entales


not so long ago a guy sold a trd external oil pump and filter kit
sold for about 200 bucks

ill see what i can find as far info is concerned and get back to you