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hi guys,

im about to drop my engine back into my gtr - 26/30 build which means that my intercooler plumbing which runs to the intake plenum on the drivers & passenger side will ‘more than likely’ not marry up due to the difference in height @ 38mm (taller rb30 block).

I have an idea to cut my factory black rubber pipes somewhere in the middle, then add a similar diameter alloy pipe which would be 2inches in length to run inside the rubber pipes, fixed with 2 strong ‘t clamps’ – I can then adjust the length to suit!

What other ideas are out there which also work? It would be great if I could get silicone aftermarket intercooler pipes to suit the additional length :)

i was also advised to elongate the engine mount holes by 5mm so that the total height drop to about 33mm

don't mess around just get alloy pipe. if you pick up standard hard pipes the plenum side really just needs 38mm extra added in the middle and the turbo side needs a little bit of fiddling but any fabricator worth their weight can do it.

hi guys, dont think anyone on this site has mentioned this yet, if the rb26/30 is going in a 33 then get a 32 hard pipe hks etc, its a straight fit no alterations, the 32 hard pipe from wing-plenum is 38 mm taller than a 33 one. this only works fitting a 30 in a 33 shell bernie uk.

p.s i know i have done it..

hi guys, dont think anyone on this site has mentioned this yet, if the rb26/30 is going in a 33 then get a 32 hard pipe hks etc, its a straight fit no alterations, the 32 hard pipe from wing-plenum is 38 mm taller than a 33 one. this only works fitting a 30 in a 33 shell bernie uk.

p.s i know i have done it..

bernie,

i have an r32gtr :-(

  • 2 weeks later...

http://www.skylinesaustralia.com/forums/Rb....html&st=40

post 57 and post 59

No change to the intercooler plumbing either. But I used silicone joiners, maybe they were a little longer.

As previously mentioned, you will have to redrill the lower bell housing bolts, but that's a 5 minute job.

I didn't lengthen the dumps either, but they weren't standard ones.

I upgraded the sump (Performance Metalcraft) for GTR oil surge prevention.

Plus added an oil cooler, of course.

I also extended ther lower cam cover, so it met up with the standard RB26 top cover (keeps the rocks out)]

mmmmm my mistake though, thought he used the standard pipes

thanks steve - you're a legend for finding this :)

No change to the intercooler plumbing either. But I used silicone joiners, maybe they were a little longer.

this answers my question that silicone joiners will work if long enough - perfect info :)

can anyone tell me what the outside diameter of the intercooler hoses are?

~80 mm

But I find 3" (76.2mm) ID silicone hose works OK, stick it in some hot water and it stretches easily..

That gives an OD of the silicone hose of ~90mm, although some silicone hoses are bit thicker.

Cheers

Gary

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