Rb25det Running Hot?

[NISR32.5]

My r32 has a s2 rb25 in. Recently serviced, new oil, oil filter, new coolant, plugs. Car was just dyno'd at 198rwkw on 9.5psi (standard turbo, fmic, 3" zorst, pod filter). The motor worries me as it seems to run heaps hot. Temp reads half way on the gauge but the intercooler piping is F@*^ing hot as it comes back to the inlet because the motor is running so hot!! But doesnt seem to overheat!

Anyone got any ideas???

cheers

[blind_elk]

Is it the piping between the turbo and the intercooler, or the piping between the intercooler and the throttle?

[NISR32.5]

its the piping between the ic and throttle. It comes up past the radiator in front of the motor. The cooler is working well as its heaps cool at the outlet tank but gets heated as it comes up in2 the engine bay!

[NISR32.5]

its the piping between the ic and throttle. It comes up past the radiator in front of the motor. The cooler is working well as its heaps cool at the outlet tank but gets heated as it comes up in2 the engine bay!

[blind_elk]

You said the engine is not overheating. The piping is hot because its 80 deg C under the bonnet.

You will probably have to wrap the piping in insulating wrap to prevent heat transfer into the piping. Make sure it's not in contact with any unnecessary parts of the engine / radiator.

[paulr33]

the heat you are feeling associated with the pipework is because it is running through the engine bay. the air travelling through it doesn't have a chance to heat up as its moving through so quickly so not to worry. the temp guage is showing you half way because youve blocked some airflow to the radiator by placing an intercooler in front of it. half way is probably a round about normal ish. mine reads half way and is approx 81deg on the hand controller which im pretty sure is fine

[Lozza150]

If it worries you a lot.... go to NATRAD and have the system flushed. On a cold day my temp guage goes down.....

Now that's good, but on cold days the heater dont get real hot.... DOH

[RB30-POWER]

When the car is running, the huge amount of air being sucked by the radiator fan has to be pulled through the radiator and pushed out.

Possibly past your IC piping?

Like my brothers cars has the piping running across the bottom of the engine, and because it does this all the air being pulled through the radiator gets pushed out through the bottom of the engine bay, right across the piping and it gets very hot.

Took me a little while to work out once, as the piping was very hot, yet the cooler was cool as, then i worked out the hot air that was getting pushed by the fan was basically super heating it. (Will be fixed soon, inlet plenum inlet on other side, so IC piping doesn't have to go across the engine bay)

[The Dan]

Either that or you could buy a decent PWR cooler and have the pipework going to the original stuff and not have to worry about anything.