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Give us the part number of the pistons, rod length and bore.

I will work out the approx comp ratio.

I am 99% sure you will not have a 8.2-8.3:1 comp ratio.

The only pistons Wiseco sell off the shelf that have a dish are the RB30DET pistons. They give a 7:1 comp ratio. All the others have a 14cc dome.

Obviously you will have a little more comp ratio if you have a zero deck height.

BUT that will depend on the rods and how much you can deck the block if it is indeed possible to get the zero deck clearance you are after when combined with the compression height of your pistons.

Tell me the specs on the rods.. Are the EXACTLY the same size as the rb30 ones?

I'd be interested too.

DnB the rods look identical to the ones I have, SCAT modified chev rods.

The SCAT rod looks to be approx 1mm longer than the stocker.

Mine require a thicker rod bearing which needs to be chamfered to fit. I havent had it fitted/measured yet.

check this link. i have a thread on it over on our rb friends site calaisturbo

http://www.calaisturbo.com.au/showthread.php?t=30077

did you measure that with the standard chev little end bush? its bigger than the nissan one so it would measure longer if you went overall measurements rather than centres

did you measure that with the standard chev little end bush? its bigger than the nissan one so it would measure longer if you went overall measurements rather than centres

NO, the rods had bushes fitted to handle 1000hp plus for an rb30 when I bought them.

I bought the rods through a mates contacts, he works at Gold Coast Porsche.

I put the scat rod against the stock rod and compared it by eye.

Just a couple of quick questions,

Does the RB25DET oil cooler bolt straight to the RB30 block, or is it different somehow, maybe the filter bypass valve is different or something?

I haven't removed it yet for actual inspection myself, but im sure someone would know?

oilcooler.jpg

Also what is this extra drain for, i assume oil? Should i extend the line and plumb it into the sump?

Because I have seen a few conversions where this line has just been crimped shut, therfore no drain, is it critical.

Once again I havent removed it yet for actual inspection.

extradrain.jpg

Cheers for any help :D

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