Evening all I've just done my first track day and I've had an issues with heat wiliest going around the circuit giving the car a thrash my oil temps can go over 120c and the water temp kept going in the red I'm thinking of getting an oil cooler and maybe get rid of the water running through the turbo and run it like a s1 t3 would this the right thing to do?? water pump rad and thermo stat are new.
any advice welcome cheers.

 

have you got your fans on a switch mate ,

you could run a small turbocooler to help keep your temps down a bit ,and it would be best to run a external oil cooler imo

 

Hi mate i build them and rally cars for a living, try running Evans waterless coolant and also changing the thermostat to the burton power one it opens sooner

 

I've got a over ride switch witch i put on b4 i go out on track but once I'm out the temps keep rising once i start driving it hard i even ran the fans wile i was running but it made no difference.
I never thought of a turbo cooler,yeah i think my best bet is oil cooler.

 

I'll take a look at the coolant,I'm using a 72c thermostat.

 

Had a similar problem on my S1 on track years ago, was fine normal driving but as soon as a i did a few laps it got very hot.
Ended up to be the headgasket.

 

ummm that is also on and at the back of my mind, sniff test need then.

 

If your temps are going really high you have a problem with your cooling system
Running your fans after about 20mph will do nothing for you

 

Bypassing the original fan switch has got to be the biggest bodge ever. If the cooling system is not up to the job then doing that is just masking a fault, not fixing it.

 

I've still got the original fan switch witch dose its job I've just put the over ride in so i can control it if i want to.

 

yeah i was just trying anything yesterday i know the air passing through should do the job after 20mph.

 

when the car was used on the road it was fine, the driving style i use on the track is completely different than what i use on track.

 

is this worth considering for a normal standard rst road car?

 

To be honest sounds like may be a cooling problem, ive been tracking for years with Evo's, RS2000's and now a MG ZR to name a few and ive never had a cooling over heat when you moving that fast should easy have enough cooling through the rad etc. Defo would advise fitting a oil to air cooler tho speck to Matt Lewis racing he does loads of kits at good prices i would advise to run a take off plate with a 80 degrees thermostat in to avoid over cooling the oil when driving on roads etc

 

I was under the impression waterless coolants were due to be banned on track due to the glycol content, it's very flammable and slippery!

 

yeah I've just been looking at matt's kits, they look good everything you need to fit one witch is great.
The car is only going to be used as a track car no road use but i think a thermostat might be a good idea.
Dose the evo have a water cooled turbo do you know? as i think this was the problem as the rs has so it was dumping hot water back in the system,plus it was a hot day.

 

something that's just come to mind is that I'm running a front mount intercooler and I'm running the fans in between the intercooler and rad i wander because I'm ruining two 11" fans that not enough air flow is passing through to the rad when I'm moving, great when parked up but not wiliest I'm moving.

 

Yes the turbo's are water cooled on the Evo's but they do run a good size rad on them defo dont remember seeing water temp's over 100 on track tho even in summer with the standard thermostat fitted. Only ever had oil temp problems with the ZR before fitting the cool... this was on a cold day

 

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I used to have cooling issues like this on my old XR2 turbo, I fitted a 13 row Mocal oil cooler with a thermostatic take of plate, but I did retain the standard oil/water heat exchanger with a shorter but wider cossie 2wd oil filter, this with 5m of hosing with the cooler itself added an extra 900ml of oil to the system, also I fitted a standard 2wd cossie rad (which just fitted between the headlights) and the hosing from the stat housing to the rad via a swirl pot was over twice as long by adding longer pipe work, this added almost 2 litres extra water to the cooling system, after that I never had an issue, more water more oil and bigger cooling surface area seamed to work a treat.

I've put a cossie rad in a Mk4 escort just to see if it fits and just goes in.


Ginger


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year sounds like a plan,I was wandering whether I should keep the oil/water heat exchanger as I was thinking of getting rid of it, In my thinking it would take away more heat from the water system then maybe get a bigger oil cooler,I'm unsure tho.

 

The frontmount intercooler blocking the rad is the biggest cause of high water temps on a rst.If you trim the leading edge off the bottom cross member,and then lower the front mount, it will then leave a gap at the top,which lets more air get to the rad.Also running a rad in the water feed to the turbo will help,as will an oil cooler.But remember,wherever you fit these extra rads,they have to be upright with air passing THROUGH them.I've seen too many oil coolers fitted in engine bays of rst's,bolted to the inner wing at a 45 degree angle!!!!!

 

I've just taken a look at the intercooler i can see what you mean think I'll give that a go at the weekend I even thought about holes putting holes in the bonnet where the ford badge is, granted i don't think it will look pretty so I'm unsure lol.
mmmmm I've fitted my oil cooler drivers side behind the bumper I've put holes in the bumper so there's plenty of air flow but...................its at a 45 degree angle

Have you still got your escort m8? last time I think I saw it was rs national day two or three years ago.

 

Where do you measure your oil temperature? In sump or in oil feed to turbo

In sump would be worse with 120

 

yes it is in the sump so like you said it would of been above 120 i'm hoping that i should be sorted now and i'm also looking in to moving the sensor.

 

What did you all change? I would also place it on turbofeed. 120 in sump is nasty yea! Hope you get it sorted

 

I've removed the water feed to the turbo,removed the standard oil cooler and fitted a 19 row oil cooler with a thermostat, changed the water thermostat so it opens sooner fan switch has been changed to switch on early and i'v lowered the intercooler so that more of the radiator has a direct air feed.
Nothings been tested yet first test is a week on Tuesday track day at Oulton park,it's probably over kill what i'v done as it was unusual weather for us on the day i did my first track day 30 degrees.