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Radiator Woes...

Simon-S14

By Simon-S14,
in Engines & Forced Induction

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Simon-S14 Grand Master

Simon-S14

Posted
Posted

Having drama's with my radiator... bought the car with the current rad in it, its an r32 with RB20det etc etc, nothing outlandish at all. Somewhere along the lines someone has fitted this rad to it.

1024465rx1.th.jpg

dont have a engine bay shot but basically the top rad hose crosses over under the cooler pipe and touches it... transferring all the heat in the process and the bottom rad crosses over and comes damn close to the crank pully.

its also been overheating on the track, so i dont think this rad is up to the job, mainly due to the top pipe location IMO, since its as thick if not thicker then a stock rad.

so anyway, i went to upgrade.. couldnt find a suitably priced stocker and several people told me to chuck a RB30 radiator in there, So i went and bought a good cond rad with top and bottom hose for 70 bucks.

now.. the bloody thing is too tall and the bonnet wont shut with it in the car, i was trail fitting it and the top and bottom hoses will fit perfectally but its too tall...

whats the go? do they fit with mods or not a chance in hell?

Cheers

Simon

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RANDY Veteran

RANDY

Posted
Posted

They certainly look like they will push air back out the front of the radiator. That can't be good!

Anyway, dunno about the VL radiator, but perhaps you could stretch the budget to JustJap's aluminium radiator? I think they're around 350, and they fit like a stocker. A mate of mine put one in his 32 GTR, and it was fine apart from a bit of radiator shroud that needed to be chopped.

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RB30-POWER Mentor

RB30-POWER

Posted
Posted

as the guys have said, make sure the blades are correct and the wiring, with most thermo's such as davies craig, depending on whether its a push or pull application, you may need to reverse the polarity of the motor as well as the blades.

generally though, getting a OEM thermo with a good shroud will work better then those types of fans. (will depend on how much room you have as to what will fit)

the factory clutch fan and shroud will work better then anything however, maybe fit original parts back on for reliability.

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RANDY Veteran

RANDY

Posted
Posted
forget the fan, its wired to suck air through the radiator. Thats not the problem in question.

It's hard to... it really looks like the blades are angled to push air back forards through the radiator. If you've wired it to run backwards, then I guess you'll get a little bit of suction, but nowhere near as much as it could make. :)

Combined with no shroud, it's only sucking air through a small area of the radiator.

In any case, I think a stock setup would work much better than what you have, or as mentioned, an aftermarket direct-fit or GTR type. :)

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