Engine Temps

[XR06T]

http://www.fordxr6turbo.com/forum/index.ph...topic=15888&hl=

I think they ran stock coolers and radiators..

might be worth shooting the guy a pm

[conza]

I work with Nick so I will give him a call and see if he can get onto the forum and post what he knows on the subject.

[xr6_prod]

I have raced an XR6 Turbo in production cars for 3 years. We also run data logging systems that records all tempratures.

The car runs factory radiator and intercooler and no oil coller - as is standard.

I have removed the A/C system entirely from under the bonnet. We have no additional bonnet venting.

We run Mobil 1 15W40 oil and in the radiator I run water with only a small amount of inhibitor (not ethol glycol coolant). We have removed the internals on the thermastat.

At Queensland Raceway this year we had 2 20 lap races in approx 35 degree heat.

Peak water temp is 110 degC

Peak Oil temp is 140 degC

Peak air temp 120 degC

In comparison at Symonds Plains in Tas (winter) the temp was 10 deg. Typically we see:

Water 95 degC

Oil 135 degC

Air 90 degC

Our engines last more than a season (probably go for 2 or 3) - and happily live at these temps.

In my opinion the standard cooling system, as long as it is in good condition, is sufficient (and safe) in all cases except very exceptional circumstances - mega modification and/or endurance racing I.e > 1 hour.

If engine temps are getting hotter than these there may be other issues. We have had problems with thermastats getting lazy and/or sticking (this is why we removed the internals of the thermastat), I would look for clutch slip (I.e. "blueing" on the flywheel), pull the radiator out and straighten all the fins so air can pass thru as it is intended, pay careful attention to fluid levels, type and condition. Make sure the top radiator has preasure and is firm when temps are hot. And all of the other common causes of overheating.

The last thing to be aware of is tuning. When my car goes to the dyno - Ric Shaw makes sure the engine is "roasting hot" before he starts his tuning work - this is because these are the tempratures the the car spends most of its life at - it could cause issues tuning a car for a more road based temp and then expecting it to be ok on the track for continuos hot use. Whilst there are temprature compensations for most variables - the tune should still be verified at the extreme end of the range.

[2fardown]

Try living up in the tropics. That's why blueboost and myself run Water / Meth injection... Keep those intake and exhaust temps way down