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Ls1 Into R31

Morgz32

By Morgz32,
in Engines & Forced Induction

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Morgz32 Collaborator

Morgz32

Posted
Posted

Hey guys

I got a series 3 r31 and looking to do a ls1 conversion, jist wondering if anyone knows if the is a conversion kit available and where I can get it from or what is needed to drop one in, I know there is s13 kits etc but have not seen one for r31

Cheers

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StevenCJR31 Veteran

StevenCJR31

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Posted (edited)

well done on thinking outside the box! anything has to be better than a NA RB30E but doubt that you will get it passed without upgrading the brakes and other things too, gonna cost ya alot of bucks as its unlikely there will be an off the shelf fitting kit available

Edited by StevenCJR31
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R31Nismoid Grand Master

R31Nismoid

Posted
Posted

In Perth dude, I just wanna know if there are kits available if car gets stickered ill track it

You might be right over there, they have a system that is at least reasonable :)

There is no off-shelf kit that I'm aware of, it'll be all custom fab work as there aren't that many LS1s in R31's to begin with, I recall seeing maybe 2 or 3 cars with one in them over the years and that's about it.

This is probably as good as you'll get info wise:

http://www.skylinesaustralia.com/forums/topic/187852-r32-ls1-conversion/

This thread has no real useful information (but it's R31 with a LS1):

http://www.skylinesaustralia.com/forums/topic/355725-ls1r31/

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rb20-into-mr30= Collaborator

rb20-into-mr30=

Posted
Posted (edited)

i spoke to the guy in s.a with this conversion, all that was needed was custom tailshaft, gearbox crossmember and engine to mounts were custom. I think he had standard engine mounts from the crossmember part. very easy from what i saw. I am doing this conversion myself on a r32

there is a place here in sa that makes mounts for ls1 conversions, he is on ebay. best bet would be mounts for the vl 6 cyl range.

hope this helps :cheers:

Edited by rb20-into-mr30=
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R31Nismoid Grand Master

R31Nismoid

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Posted

In an R32 you can go up to a 7L NA engine or 4.5L turbo charged if you get it appropriately engineered.

I imagine an R31 is slightly heavier/the same so I imagine similar limits, I read this on the application to modify vehicle regulations.

Not quite correct... It'd be around 6500cc (maybe less, depends on model).

VSB 14

Either way each state then carries it's own laws on the matter so it could be less again (or impossible).

Vic being a VASS Engineers, I've spoke with some a few years back and i did ask a similar question. They said no way would they be letting an injected V8 pass in a lighter car than it came with, especially given kw increases... So as i said earlier it comes down to the state you live in, and knowing the laws and contacting the engineer first to find out what they will need before doing it. could even depend on the engineer you get and if they are willing or not!

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Morgz32 Collaborator

Morgz32

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garage 7 in S.A wouldnt be able to help would they? i got all the stuff i need for s13 front set up from them they seem to know abit about 31's you dont know the guys name on ebay so i can search him or what i search under??

all this helps guys cheers!!

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