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R34 - Rb30


Redliner007
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Hey guys,

recently I pulled my motor out of my r31 and decided to put it into a r34. I have bought a r34 now but I would like to know the issues I may face in doing the conversion. Surely someone here has already dropped a 30 into a 34 so would be good to get some knowledge of guys who have been there done that already.

Are there any clearance or looming issues? any majors?

all information will be helpful.

thanks guys

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Hey guys,

recently I pulled my motor out of my r31 and decided to put it into a r34. I have bought a r34 now but I would like to know the issues I may face in doing the conversion. Surely someone here has already dropped a 30 into a 34 so would be good to get some knowledge of guys who have been there done that already.

Are there any clearance or looming issues? any majors?

all information will be helpful.

thanks guys

30e(t) or 30de(t)?

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Hey guys, the clutch issue you say? Well i have all running gear from my r31 which was initially r33 rb25det. It has a rb25de r32 head. And to answer the question it is a rb30DEt

p.s. that link pretty much advertised the car and specs, didn't have too much on the actual build or issues it had. I have basically a fully built motor ready to go in with all running gear just need to clarify what issues i might come across when doing the conversion.

I have heard there's issues with the bonnet closing with the standard "J pipe" as it fouls with the bonnet, to get around this you either have to cut the bonnet support or go front facing plenum. I'm not too keen to do either lol has anyone considered getting custom mounts to lower the engine level?

Edited by Redliner007
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Hey guys, the clutch issue you say? Well i have all running gear from my r31 which was initially r33 rb25det. It has a rb25de r32 head. And to answer the question it is a rb30DEt

p.s. that link pretty much advertised the car and specs, didn't have too much on the actual build or issues it had. I have basically a fully built motor ready to go in with all running gear just need to clarify what issues i might come across when doing the conversion.

I have heard there's issues with the bonnet closing with the standard "J pipe" as it fouls with the bonnet, to get around this you either have to cut the bonnet support or go front facing plenum. I'm not too keen to do either lol has anyone considered getting custom mounts to lower the engine level?

If it's RWD then you can slot the engine mounts to drop it down some.

Also the fouling I had (in my 32) was not the J-pipe, but the most forward corner of the intake plenum, and the lip of the timing belt cover.

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Oh yeah so i can get away with lowering the mounts? thats a bit of a relief might even look at getting some aftermarket mounts/bushes while im at it since i will be saving the money from not going front facing.

Do you guys know if there is any major wiring issues?

Im also using a Link G4 ecu which was previously on a r32 loom, I would like to keep all the factory r34 gauges in working order to give it the "factory" appeal.

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