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Rb30 Into S14

carl h

By carl h,
in Engines & Forced Induction

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carl h Proficient

carl h

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hello all,

we're trying to fit an rb30 into an s14 which was previously fitted with an rb20.

rb30 block is using an r32 rb25 head and all of the rb20 accessories.

engine in the car it appears to be sitting proud of the fenders by a good inch or so (or i assume the extra 40ish mm due to the block hight increase).

using an r32 gts-t xmember and mounts.

rb30 oil pan appears to be close to fouling on the swaybar.

any ideas on how to get it to fit without putting a cowl on the hood?

search is a bit slim on this topic.

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James_03 Mentor

James_03

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Posted (edited)

Mate of myn modified the swaybar to go around the front of the sump, then slotted the mounts to lower it down.

Can get more info off him if needed.

Edited by James_03
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STATUS Grand Master

STATUS

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Mate of myn modified the swaybar to go around the front of the sump, then slotted the mounts to lower it down.

Can get more info off him if needed.

Selby's make a RB swap into S13 swaybar, im about to order one for our race car. (ive used notched sumps of late)

Slot the mounts on the engine (up) and slot the xmember (down) this should give you a full inch.

You will need a fwd facing plenum to do it properly (ie legal clearances) though.

post-34927-1278290343_thumb.jpg

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carl h Proficient

carl h

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any pics of mods done to the mount plates would be lovely, fab work is nothing im new to just need to see some examples to base mine off of.

here are some fitment pics (or lack there of)

89dddae4.jpg

cdd866b6.jpg

4c192269.jpg

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ST240 Enthusiast

ST240

Posted
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im gunna be using ford cortina engine mounts to put my rb30det into a 180sx.motor isnt in yet,so unsure how much lower it will sit using those

Can you do me a favor and measure how thick they are?

Mate of myn modified the swaybar to go around the front of the sump, then slotted the mounts to lower it down.

Can get more info off him if needed.

Slot the mounts on the engine (up) and slot the xmember (down) this should give you a full inch.

I'm kinda confused guys... Slotting alone wont do anything to where the engine sits will it? You have to use other mounts AND slot for it to sit lower, no?

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ST240 Enthusiast

ST240

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standard rb20 engine mounts are 45mm and the cortina mounts i have are 35 -38mm(cant remember exactly) they are round with bolt either side.

Hm. Sounds similar to the E30 mounts i used when I did my RB20 swap into my s13.

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Single Collaborator

Single

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use an rb30 cross member, with r33 gtst engine brackets and r32 gtst engine mounts.

i can fit an rb 26/30 into my S15 with that, the r32 crossmember was about an inch higher when i tried both of them

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