Intercooler Piping To Accommodate 38mm Difference In Block Height

[Marko R1]

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

[TiTAN]

that or get an exhaust shop to fabricate some new steel or alloy pipes to suit.

[Scooby]

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.

[Adriano]

and dont slot the engine mounts, it doesn't work in a gtr, the sump will hit the crossmember. You can space the crossmember down if you feel the need

[rockabilly]

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..

[Marko R1]

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 :-(

[s13_Skyline_inside]

as said get it fabbed up in alloy pipes, will look neat as well and less worry about splitting the standard pipe down the track

[R32 Driver]

Didnt SydneyKid manage to fit it without changing the piping?

pretty sure its mentioned somewhere on this forum

[Marko R1]

if this is the case can u think of keywords to search for sydneykids thread relating to this?

[R32 Driver]

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

[Marko R1]

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

[Adriano]

Dont see how silicon joiners will help you with the drivers side, unless you buy a longer silicon elbow to replace the rubber pipe that goes to the plenum

[Marko R1]

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

[Sydneykid]

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

[Marko R1]

ur back