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Have been doin some track work at Malalla lately and noticed that water temp started to rise. Further inspection of radiator revealed hole in core, luck i stopped lapping the circuit before it overheated. Now i thought that since ive got to take the radiatior out to repair or replace i might as well take advantage of the fact and install a larger radiator. Is the gtr radiator any larger than 33 gtst, ive heard that a vl commodore radiator is larger and will work, can anyone provide any info, would be much appreciated.

failing either of the above i will go with a custom aluminium job.

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From memory their about 900 new from PWR. A VL one will fit and i think it was subzero that used them a fair bit at one stage. If you do get a VL one make sure you get the core from the turbo model as their much better than the standard ones.

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$400 for a PWR radiator, good score SK. VL turbo radiator, they are made of brass and copper arent they, I see Unique auto sports sell a larger radiator for the r33 for $490, thats a brass and copper radiator, i wonder if it just happens to be a VL radiator, very interesting, UAS also have pwr radiators for $770 to.

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i wonder if it just happens to be a VL radiator, very interesting, UAS also have pwr radiators for $770 to.

It doesnt look like a VL radiator, vl's have the end tanks on the sides, not on the top and bottom.

$770 looks beta than buying a vl pwr one.

Na and turbo vl's has the brass n copper radiators.

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My experience is that aluminium core radiators have much better heat transfer ability and the weight difference is huge . I once used an R32 GTR rad in a FJT Bluebird and it solved the cooling issues instantly . I think it had the same dramas as RB Sixes in S13's ie engine really too long for bay and insufficient room for engine driven fan . Also the crowded engine bay is not good for post rad airflow .

I think it comes down to surface area vs airflow that makes a good rad , a bit more thought went into the later tubes to get around boundry layer heat transfer probs as well . I was surprised to find out that super dinosaur technology rad's are very expensive and when I realised the compact nature and weight advantages of modern stuff I'll never go back .

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My experience is that aluminium core radiators have much better heat transfer ability and the weight difference is huge . I once used an R32 GTR rad in a FJT Bluebird and it solved the cooling issues instantly . I think it had the same dramas as RB Sixes in S13's ie engine really too long for bay and insufficient room for engine driven fan . Also the crowded engine bay is not good for post rad airflow .

I think it comes down to surface area vs airflow that makes a good rad , a bit more thought went into the later tubes to get around boundry layer heat transfer probs as well . I was surprised to find out that super dinosaur technology rad's are very expensive and when I realised the compact nature and weight advantages of modern stuff I'll never go back .

There is one thing to be careful of and thats the plastic tanks on older cars . I've seen these become brittle and crack without warning . In that instance the 7MGE had a thermal melt down not long after an expensive re build . I would prefer to use new rads or even an all aluminium one for piece of mind particularly with an expensive engine .

Cheers A .

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