external oil cooler

GTG · Post by **GTG** » Sat Apr 07, 2007 9:02 am

Whitch one can be addapted ? Anyone else used an external oil cooler ? I tried tu use de renault 5 turbo and de opel vectra ce20let but the sandwich plate adapter at the oil filter was a bit larger. Any ideas ?

aibast · Post by **aibast** » Sat Apr 07, 2007 9:06 am

have you tried a 700 sereis turbo ones? Don't know if they fit, but they do tend to leak a lot

GTG · Post by **GTG** » Sat Apr 07, 2007 9:10 am

I have an oil cooler from Lancia delta 2.0 16v turbo. I just need to know what sandwich plate will fit .

GTG · Post by **GTG** » Sat Apr 14, 2007 6:46 am

Nobody ?

JohnTurbo · Post by **JohnTurbo** » Mon Apr 16, 2007 9:33 am

Why bother? Are you having issues with excessively hot oil?

The OEM filter based cooler seems to work fine for most applications.

GTG · Post by **GTG** » Mon Apr 16, 2007 10:17 am

Sure ? Works fine even at 1.4 bar @ t28rs ?

GTG · Post by **GTG** » Mon Apr 16, 2007 10:52 am

Sure ? Works fine even at 1.4 bar @ t28rs ?

JohnTurbo · Post by **JohnTurbo** » Mon Apr 16, 2007 11:40 am

I would have thought so!!

If you don't know, my advice would be to monitor oil temperatures via the infocentre and add an oil cooler only if required.

Bear in mind the turbocharger isn't relying on the oil for cooling on the 480.

Theres a nice alloy radiator type oil cooler found on some turbo diesels. I have one kicking around off a rover 418SD for instance.

I don't recal anybody ever adding an additional oil cooler to a 480, but i could easily be wrong. Theres been plenty of hot setups power wise too.

vins480t · Post by **vins480t** » Tue Apr 17, 2007 9:27 am

ive fitted an additional oilcooler inbetween the turbo lines.

this cools the oil before it goes into the turbo. the main difference i found is that the oil stays at 110 `C instead of going to 125.
thisway there is no need for a sandwichplate.

Sieger · Post by **Sieger** » Wed Apr 18, 2007 8:55 pm

5 gt turbo will work , just get rid of the original system , use an pair of pliers to unscrew the orginal socket . next step fit the original stuuf from the 5 gt turbo , i will post some pictures tomorrow

Rapid-R5 · Post by **Rapid-R5** » Fri Apr 20, 2007 3:53 am

cooling the oil doesn't just aid cooling, it helps the oil maintain its visocity, therefore the oil pump doesnt have to work so hard to keep pressure up and force oil into tight spaces. or so i read.

steve

pol · Post by **pol** » Fri Apr 20, 2007 8:25 am

Surely oil gets less viscous with use? Just change your oil! Which reminds me, must do mine..

pol

Rapid-R5 · Post by **Rapid-R5** » Fri Apr 20, 2007 11:08 am

more with heat tho.

steve

vins480t · Post by **vins480t** » Tue Apr 24, 2007 3:08 pm

viscosity has to do with the oil itself and the temp
i run 0W40 castrol full synthetic and i dont want my oil under 95 and above 115 deg celsius
before the extra cooler was installed it went up to 125 deg.
the oil can take it but it gets to thin so it wont grease enough is my thought about this.

crispy-d · Post by **crispy-d** » Thu Apr 26, 2007 10:48 am

Vins480t - do you have an air duct or something feeding air to your cooler there, as it's right above the turbo! Thought that's the hottest part of the engine bay, and is usually glowing red hot under my bonnet!

If there is an air vent or something similar, does it matter if rain gets in and falls on the piping hot manifold? Very interesting, I didn't realise people were putting oil coolers on their cars as I thought these engines already had them, not that I've managed to find it!
The 5-30 Shell Helix FS stuff I use is pretty good. We did viscosity and some other simple tests on it (including some other standard oils) up to pretty high temperatures. Can't remember how high we went though, so if it was less than 125C then maybe I need an oil cooler?! lol I don't have an IC so have no idea what my temperatures are, but I do the 230mile motorway thrash from Bristol to Ipswich quite often, and I've never had a problem with the engine itself. (Apart from cambelt - but that was cos the stupid mechanic forgot to renew the blasted pulleys).
I take it the cooler just plugs straight into the oil circuit? Sounds easily done - would positioning it at the front of the engine bay be no good?

vins480t · Post by **vins480t** » Fri Apr 27, 2007 7:42 am

@crispy-d

ive got a modded scoop on the bonnet thanx 2 Lee !!!!!

and an extra hole under it.
it also cools the turbo by letting the air go under the car.

VanDerGraaf · Post by **VanDerGraaf** » Fri Apr 27, 2007 8:34 am

So Vins, you cut away the slats of the bonnet underneath the cover? I thought of this (I have the snow cover too

) but was worried that water could possibly get onto the Turbo

.

Do you have any pics of what you have done close-up?

Rohan

martinholmesuk · Post by **martinholmesuk** » Fri Apr 27, 2007 9:51 am

Having come back from the ring with 143C oil temp..... I think the standard cooler did a fine job of being the temp down some minutes later.

vins480t · Post by **vins480t** » Tue May 01, 2007 7:31 am

I cut in a complete new hole in the bonnet, same size as the excisting hole.
took an old bonnet and cut out the intake of that and poly-ed in that in the new hole.
so i got 4 ribs extra.
my scoop is 5 inch longer than the original.
So no water can go on the turbo directly. but when driving of course there will go water in there.

GTG · Post by **GTG** » Sat May 05, 2007 9:01 am

The reason I wanted a cooler oil wasn't because the oil looses his properties. The pistons are cooled whith oil . The combustion camber is in the piston. So ... if i give more boost , more power results higher temperature. If I don want my pistons to melt i need to cool them . So ... if the oil is cooler my pistons will be cooler . This is why I wanted to "extra" cool the oil. My specs are T25/T28 hybrid turbo , 350 cc fuel injectors and a nitrous kit. I intend to use Daftek Unichip for my electronics with a suplimentar map sensor (3 bar) . I am thinking that if I run , let's say , 1.3 bar of boost + 50 hp nitro setup if I don't extra cool the oil it will be "bye bye pistons , engine , and so ... " .