I have recently bought an RS Turbo cabby, its got a GRS intercooler which although looks good seems to stop air cooling to the rad?
it has got a slim line fan which cuts in at half way but the temp keeps going up?
luckily I got home as the needle was at the top of the N on NORM.
Any one else had this prob with bigger intercooler?

 

Ive got 2 10" fans on the front of the intercooler and they manage to keep the temps down, but ive also got a alloy rad which helps.
Is your fan mounted on the front of inbetween the intercooler and rad?

 

yeh only one fan between intercooler and rad.

 

Tris I told sheps to get another fan but he didn't, I read something on here a while back about 1 slim fan actually being less efficient than one of the original RS fans, which is why you need 2

also get yourself the saff fan switch and thermostat while you're there

 

PM me your number wes I might need a chat to you about a few other things about it you might know about.

 

PM sent mate

 

is that during normal driving?? Surely the fan shouldn't be coming on then......

Try a good flush out of the cooling system and a new thermostat first.

rich

 

yeh normal drive, weather not exactly hot. only about 23-25 outside temp.
Back at work tomorrow so will give it a good flush and get one ordered and sent out.

 

done that today and still getting extremely hot on a 20min drive from work???

 

blown headgasket perhaps?

 

That's just normal for an RST running a Front-mounted Cooler.

You need ALL of the following.....

2 fans
82° Thermostat
Cossie Fan Switch
BRAND NEW Rad

Only then will you have anywhere near decent cooling IMO.

 

its not the head gasket, a master mechanic did it not long ago

Trist you need what Christian has just listed for sure

 

remove the thermostat and drill 2 x 3mm holes in the actual part that lifts.. clean off any swarf and refit .. lowers water temps nicely but its not enough to hinder the way the car runs

i had 2 x 12 inch kenlows on my old one... everyone said it wouldnt fit oh yeah and ally rad helps aswell

i remember christians attempts to cool the water down... trial and error .. have to give every thing a go...

 

In my experience, Alloy rads on RST's are pants. Defies all what we know is right, as Alloy rads are great on everything else.

Mine has a standard rad and is spot on. The recipe above is what I run, except the fan switch as mine is controlled from the management. My fans come in separately, first one at 88°, second one at 90°, but that won't have a major impact.

 

so your pc fans never worked too well
must admit the downpipe cover was good

 

Wrong person, I have never tried PC fans.

A very very very long time ago, I ran motorbike fans on the back of the rad, but about 4-5 years ago, decided that I had had enough and stripped it all out and did it properly and is the set-up I have now. The car is spot-on for cooling and has been ever since.

I would again emphasise the above. You have to do ALL of those things and don't skimp because you think your rad is a good one, get it recored anyway. You won't regret it.

 

is there any way you can remove the intercooler and bypass it somehow just to see if the temps stay normal??

 

Where can I get all that stuff Christian and Beccy said.
is it actually worth it for a car that is 186bhp and no plans for any more, would I not be better off just putting normal items on??

 

No, power is largely irrelevant when it comes to water cooling. Think about it, these cars over-heat at low speeds.

I can supply the Thermostat. Everything else is fairly straight-forward and readily available.

 

82° Thermostat
Cossie Fan Switch

Whats diffrence between normal escort RS items?

 

christian how essential is havin rad recored and how much and where can you get it done?

 

sorry i ment normal items as in intercooler and fan, is there a need for an intercooler that size for that power?

 

The 82° Thermostat opens 6° earlier than the standard one. This gives the water a better chance of keeping cool.

The Cossie fan switch turns the fans on slightly earlier.

I would say out of all those things, the recored rad is the most significant. I use a local place, they are certainly not cheap though, but I use them because they are tried and tested. Their recores are well over £100 though (£130odd I think).

I imagine you will have somewhere local to you that can do a good quality recore.

Sorry for the misunderstanding. The standard RST Intercooler is only really any good for 12-13psi, after that the air temps will rise to the point where the ECU retards the timing, killing the power off. Unfortunately, any Intercooler worth having is a full front-mount, so blocks off flow to the radiator. If you stay with a standard Intercooler, then the standard fan will be OK, but once you decrease the amount of air-flow to the radiator, you will need to increase the fan set-up.

Does that make more sense?

 

why??

 

What size fans? 10inch kenlow slim? can you pm me what you need for stat and I will get one from you.
many thanks for all the help.

another thought what about a pace cooler? smaller than what I have got.
i am only running 15psi would that do??

 

2 x 10inch Kenlowe is the norm.

If you can't afford to re-core your rad its certainly worth taking it off and flushing it properley with a hose pipe. Same goes with the rest of the cooling system make sure the heater matrix isn't blocked etc.

My car used to run warm until i did this. No need now to sit in traffic with the heater on full blast

 

I can't explain it, but one very well known car on this forum has recently removed his Alloy rad and fitted a brand new standard rad and noticed an improvement in cooling.

There is also another local RST that I recommended the above route to and he did it and is chuffed with the results.

 

Get the bit's as Mr C said, will solve all your problems, no point changing coolers for the sake of a recored rad and few other bits. And the potential's there to get way past the 200 barrier

I managed to get a new RS Turbo rad from ford for £135 a year ago and dramatically made a differance, mind you, I run the chargecooler

 

PMSL.

 

Does the job for me

With your front mount interheater

 

Because copper conducts heat better than alloy

 

like this

http://www.kenlowe.com/fans/consumers/fans12.html#

only need one other as it can sit next to the one thats in there now.

cossie fan switch? will that fit the thread in CVH?
and then change the one on the fan from CVH switch to cosworth one?

 

no Tris just change the one that sits in the thermostat housing, fits in the same thread and has same connections then comes on at a lower temp

this with the lower temp thermo will mkae it run a bit cooler

one thing you might wanna do is take the water cooling off the turbo for now, this will prob save you a few degrees

 

cossie plug is grey square as escort are blue round are'nt they?
water hose is off turbo, that and wired fan on to a switch so I can control when it comes on, this has made a difference

 

you're thinking of the water temp sensor on a Cossie mate

I'll try and pop over to you this week and have a little look

 

thats it .. knew it was different fans
so about that downpipe cover....

 

I have just put new rad on my S2 and it had 2 fans on the front off it when i was putting it all back on the car i could only fit one due to the bumper been too close to the intercooler cut bit off the bumper and still could not fit it. So i have only got one fan on the rad , do you think i should fit standard fan on the back of the rad ?

 

I bet it does a great job at 12 psi