RB26dett swap for 260Z

[74260z]

Some of you seem to have some experience with this.  I want to put an RB26dett into my 74 260Z.  What mods/parts will I have to do/get to make it work.  I know about needing to get an rb25 tranny and oil pan.  What else do I need to get and what issues should I expect to run into?

 

Thank You

 

74260Z

[bryan3976]

mate

 

have you searched for parts. in the states you can get kits. 

[Zedman240®]

Need to make your own rear sump and oil pickup and locate some engine/gearbox mounts and that's the hardest part. Everything else is pretty straight forward.

[RBZ 260]

There are kits in the US to make life easier.

Problem is u guys have the steering wheel on the wrong side which complicates things as the twin turbos are on the same side.

 

That's why when u see a US rb26 conversion motor leans to left to give more clearance to the steering rod. While Japanese and Rhd cars engine sits straight.

 

Other than the kit u can get from US u need a modifed sump of a 3l rb30 patrol or z31 200zr  with oil pik up or u make up a custom one.

 

I did see that with mounting kit sometimes they supply. The sump as well.

 

Other than that transmission mount needs to be modified or new one made to suit the rb25det gbox.

 

After that is tailshaft. Brakes,fuel system, electrical systems ecu, intercooler etc...

[zedevan]

you will probably find this site/area quite useful

 

http://forums.hybridz.org/index.php?/forum/31-nissan-rb-forum/?s=f30cf0c4056903fca1507efa21f3ce8f

 

the biggest issue is probably the sump (as the 200zr one is no longer availible) and gearbox mounts depending on how you want to do it. Castlemaine rod shop sell a kit, which i currently have one of sitting around, although i'm not the biggest fan of how they do the gearbox mount but will see what happens when the time comes

 

And i assume RBZ260 meant;

'Problem is (US) guys have the steering wheel on the wrong side which complicates things as the twin turbos are on the same side'

[sco_aus]

RB25 oil pans wont work..

[Taz]

The original post members location is the U.S so id say his steering wheel is also located on the wrong side of the car.

 

and there is a good sticky posted on the link above detailing the rb26 swap

[nat0_240_chevZ]

The original post members location is the U.S so id say his steering wheel is also located on the wrong side of the car.

 

and there is a good sticky posted on the link above detailing the rb26 swap

 

i luv it......and he spek no inglish.

 

youll have the same probs as 450z on hybridz, with the steering, but that was a vh not an RB.

still quite achieveable however, just needs more work, dont let it put you off.

nat0

[jamo240]

Hey guys

 

For my RB swap, I actually removed the trans 'saddle' mount from the body (drilled the spotwelds out), and then sectioned it and re-welded back onto the body about 80mm rearward...this puts it in the right spot (in longitudinal line with the trans mount), and then i modified the R33 skyline mount to bolt to the repositioned body mount. This requires a change to the configuration of the interface between trans mount and  body mount, as the original 240Z mount uses a clevis bolt through a vibration isolator, whereas the R33 skyline mount bolts solidly to the body mount. THis is pretty easy to make out of 2mm sheet steel, and then MIG weld it onto the repositioned saddle. You also have to section and narrow the pressed steel mount that came out of the R33. When finished, the whole lot looks factory standard, does not cantilever the mount like the kits do, and restores the required stiffness to the mounting structure...this is important for durability and attenuation  of powertrain noise.

 

It takes a bit of fabrication experience to do, but if you can't do it yourself, I reckon it would take a shop experienced in such things about 2 days to complete.

 

Cheers

 

Jamo