I know there are a lot of great fabricators here on Honda-Tech so that's why I am posting here.

Has anyone done an RB25DET into a 1973 240 swap? Basically need help with mounts.

Everyone loves threads with pictures







Going to be a single turbo GT40R or GT42R with a a standalone. Going togo help with some chassis work and mockup today.

 

Sweet

 

good luck on the project

 

That looks like a sweet setup.

 

fab forum would probally be more helpful...those guys are crazY

 

TUBULAR!!!!!!!!!


manifold... DO IT. DOOO ITT.

 

If you have the rb25 front crossmember it may be easier to find a way to bolt that to the bottom of the frame and use the stock rb motor mounts, then you just gotta adapt the tranny mount somehow.

 

Some progress pictures from today.

Test fit with the original RB25 mounts and original 240 mounts


Isnt going to work


The stock bottom end that's soon going to be replaced with forged pistons and rods


How it sits with the mounts untouched


Again, how it sits with the mounts untouched


Scott modified the mount


Passenger side modified mount


How it sits with the modified mounts


Going to be a beast once it's finished

 

that **** is pretty cool...keep us updated

 

looks fun

 

subscribed for updates

 

awesome project man... a friend of mine is having a little fun with his 1990(i think) 240 .
built rb26, gt35r ......gonna be nasty

 

ooo thats gonna be so hot

 

i love cars that are as old as me! i have always loved the 240 looks much better that the 260 and 280, cleaner lines, better flow. i wish i had the funds and time to do something like that. i hope you can find all the old oem parts you need. good luck!!!!!

 

Will the hood clear the motor?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EnzoSpeed &raquo;</TD></TR><TR><TD CLASS="quote">Will the hood clear the motor?</TD></TR></TABLE>

We put it on last night and we have 1 1/2" clearance.

 

I gotta keep watching this, a friend of mine is pondering a Rb swap into his '78 280z.

-Dustin

 

Let me know if you need any help with the fab work or anything in general.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 0x64 &raquo;</TD></TR><TR><TD CLASS="quote">We put it on last night and we have 1 1/2" clearance.</TD></TR></TABLE>

did you take into account how much the motor/motor mounts will flex?

 

I believe they have less clearance than that from the factory, but if there are problems, Nismo or other hard mounts would probably cure it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SHystrdyGSRtdy &raquo;</TD></TR><TR><TD CLASS="quote">

did you take into account how much the motor/motor mounts will flex?</TD></TR></TABLE>

Yes. The motor mounts are almost done. An inch and a half is enough space. If it wasnt a larger cowl hood would be made

 

You are my hero.

 

sleeper

 

I saw an RB something into a 240 or 280 online somewhere before. I think without touching the engine the thing ran in the 11s.

Good luck with it.

 

I actually seen this done before, was at a drifting event at beaver run and the
car sounded so mean. Went to the trailer later to see that it had a RB swap,
guy said it was pretty easy too. Good luck on a cool project, is there stuff
available for the suspension for these cars?