hi all can anyone shed some light on this for me.
right running a 82 deg stat new temp sensor, recored radiator, airtech cooler with twin fans and car is overheating. seems to be ok on tickover, fans kicking in when they should temp ok. as soon i drive and give it some the overheating heating starts, so need to put the blowers to get the temp down. i think its becauses there is no air geting to the radiator, because of the airtech cooler, has anyone had the same problem.

 

s2's arent the best for keeping cool, but It could be a problem with your water pump or thermostat housing. Check to make sure both are working correctly. It could possibly be the airtec cooler. I personally ran a pace double pass when I had my s2. Is much more compact and still alows some decent power. Never had overheating problems either.

You also have to remember where the turbo/exhaust manifold is in relation to the rad. That doesnt help the cooling either.

 

running a new water pump mate, and checked the thermostat + turbo has not changed just new, since i had it on the road. and i was running a pace intercooler as well and it was fine

 

is the turbo still water cooled??? these are prone for boiling the water system up when hot/giveing it sum.

also have u pulled return pipe off the water bottle 2 make sure its circulateing?? thermostate houseing could be blocked or the water bottle.

other then that it could be headgasket failure

a case of trial & error mate, haveing simular prob with series 1 atm

 

Well found my problem today its the intercooler or the fans , put a stander intercooler on today and took it for a driver temp was fine, no overheatig at all. lack of air geting to the radiator!! so geting to hot when driving, and fans just cant get the temp back down.

 

Yesterday i fiited my airtech and now i have the same problem. I think a member here had the same problem and he just fitted a spal blower back of the radiator. Problem solved. I will try this...

 

According to auto specialists website "Fans are now located in-between radiator and intercooler" so there shouldn't really be a problem ?

Result was in 5th gear @ 125 mph we recorded a ACT reading of 36 degree's on outlet pipe of intercooler.

 

Yeap but the air now is much hotter...

 

Also an oil cooler could help to solve this problem??

 

i had this problem with my s2. i have the airtec rad and intercooler with the fans inbetween the 2. i took the fans out and moved the intercooler back to the rad and put the fans in front of the lot and its cured the problem. i found autospecialists very un helpfull ! all i got from them was 'it shouldnt do that mate'...

 

Mine today with 30 C tmps the gauges went near the red line... Did you use the same brakets? I will try it tomorrow

 

mine gets very hot to i use the airtec alloy rad to think it makes it hotter tho

 

ive just been having the same problems on a s2 with a zvh and just oil cooled stage 3 turbo, using airtech front mount and rad with the 2 fans on the front of the cooler, the way we made it better was to bag the turbo and cut the top section of the bumper out between the spot lights, with the heat being kept within the turbo bag and slightly more airflow has helped lots, you can actually sit on the motorway with your foot in it and temps are alot better not near the red anymore.

 

any pics mate?

I've got the rad and have the cooler sat in the garage ready to fit but am now having second thoughts

 

I've order an oil cooler from a member here. When i fit it must temps go a bit down i think... We must to find out the way because my car now is ''flying'' with the new I/C, and i don't want to fit the standard cooler again.....

 

Your better off putting the fans between the cooler and the rad having them on the front of the cooler stops "ALOT" of the cold air (when driving) getting to the rad ive always fitted mine this way and never had heating problems.

 

Its not just the airtec cooler i have a pro one fitted with twin spal fans between the rad and intercooler and im sure i still have a 88 deg thermostat.

Mine gets quite warm almost red (and this is with water cooling pipes disconnected to turbo) if i give it some and hit traffic however moving along i can boot it and the temps drop right down to 'o' on norm. So i think its just a case of getting more air to the radiator (but don't really want a cut bumper) but i will try an 82 deg thermostat too.

 

I have the old style airtec front mount with the fans in front, with an 88 spec bumper and mid-summer in heavy traffic my temps never rise above the N in norm. I tried faffing with swirlpots, different fans etc. Nothing made that much difference.

In the end I just flushed the water system thoroughly to get rid of all gunk and got the std radiator re-cored!

 

i think its just a matter of a 20 year old cooling system showing its age i know rs turbos always run hot anyway !!?? so i been told but did they when they were new ? its got to be airflow

 

bad design of the cooler imo. for a start, i would personally stop water cooling the turbo.

 

Mine turbo is only oil cooled..

 

1st thing i did was diconect the water cooling hoses from the turbo but wont this cause damage in the long run ??

 

I have exactly same problem with airtec cooler & radiator and i will buy airtec turbo cooler next spring when i start driving season

 

something like this http://cgi.ebay.co.uk/COOL-IT-Reflec...d=p3286.c0.m14 could make the job?? Turbo is so close to the rad....

 

Some say yes, most say no.

The water makes such a miniscul temperature difference to the turbo, compared to the substantially larger detrimental effect it has on your cooling system it is not worth doing imo.

 

To 'johnboy19'

So what is the solution to the problem of having a FMIC and rising temps?
Don't really want to revert back to stock IC

 

I would strongly recomend getting your rad re-coned. If you havent already. makes a world of difference.

 

so a new alloy rad could make the difference??

 

no go for a std one, copper dissipates heat better than the alloy ones.

 

+1!

I have not read the entire thread so may have been said, but overheating could also be caused by running lean, or retarded timing giving high EGT.

 

Yeap but in traffic whithout boost i don't think the car is running lean ....

 

Here's some pics of what i did, the Thermo-Tec turbo heat wrapp kit is Ł90 odd plus the vat but i can get them cheaper if interested,

 

You need to make sure fans are inbetween the rad and the intercooler, they also need to beable to attract the cold air into the rad, so if the fans are better placed up, or the cooler much fether down like the FRST then all should be fine, you will restick the air, so if you place the fans as high as pos and then cooler as far down as pos. it should be fine, mine gets to near normal. lol

 

Its just how you drive with an FMIC around town really, if you drive normally no boosting my car will not overheat at all, i mean why do you need to boost in town we don't get any turbo chatter on our mfi's lol! Sometimes just crusing is so much better.
Out of town boost as much and make sure you dont hit traffic too soon thats it really.

 

An our ago ordered that kind of turbo blank from ebay, two pieces 30x30 cm. The man says that is thermotec. Also i changed the fans setup, in front of the rad now i have an 12" fan and an other 9". Behind the rad putted the other 9" to suck air. Beforer this after ten minutes idlins fans didn't stop at all. Now they working a few seconds and then stop2. I will go for a ''full boost round'' to see if there is any defference

 

i got alloy rad and its always run hot looks good but not practical

wat was the point in making them tho ??

 

I know everyone here is talking S2 but iv got the airtech alloy rad and fmic on my van,fans mounted on the front and so far iv not had any probs with overheating

 

Ive got grs alloy rad and ic with fans on front of ic with no probs