3v1Ls14

So I had a SR20DE and Nismo 6 Speed gearbox laying around from when I pulled the lot from my S14 Facelift (for RB20DET conversion).

This rolling body was bought for the motor to drop into..






These are literally the photos that were on the auction

Previosuly RB25DET so I had to remove that loom and ECU first. Already been converted to manual, R32 handbrake conversion, front strut brace aswell as an RB20DET gearbox for my S14 build. Has the Nissan BBS 15s as well which are hard to find, but not bad for standard wheels.




To get the motor in I just used the subframe that I took out of my S14, (bolts straight up to the Cefiro) and had to modify the gearbox cross member.
The shifter was in the perfect spot (as you can see). I had read on the internet (obviously by people who just guessed and didn't REALLY know what they were on about haha) that for this conversion the shifter may not line up properly... Load of crap, looks perfect to me...?





I had to modify a factory A31 gearbox cross member to fit but that was simple. I just drilled 2 plates out to match the holes on the under body, then lined them up and welded them to the factory cross member.

That is literally how simple it was just to get the motor bolted in!

Note* I had to bend the power steering hard lines to clear the sump but that took 2 minutes

The next step was mounting everything else to the motor.
There were a few things i had to make or modify, eg. accelerator cable bracket, radiator mounts, some hoses needed modifying to be out of the way and functioning. But that is pretty much it

I simply cut and welded the bracket for the cable to suit the A31 cable


Made up some brackets to hold the radiator (only temporarily as I am sure the engine bay layout will change soon), but they work for now




The SR bottom radiator hose was still perfect in length so I just used that, but for the top it needed to be a bit longer, I went to pick a part and grabbed the top hose off a VR/VS V6 Commodore as the have long straights in them and just cut it to fit. I have now wired the factory SR A/C fan that mounts to the radiator as the electric fan for the engine to get rid of the viscous fan. Again, the radiator setup is only temporary for now, as the engine bay will change soon im sure with turbo etc
The SR-RB heater hoses are different diameters, so i just used the SR hoses from the motor and cut them behind the cylinder head at the firewall and used plastic Gates hose adapters from repco to put the smaller rb hoses on, in order to connect them to the heater core (to keep heater)






I used the RB hose from the power steering resivoir to the pump as its shorter, and i just used a bracket to secure the high pressure line so it wasnt in the way.

When I had everything in the engine bay, i noticed that I could still stand in the engine bay even with the motor and the radiator in there! Soo much space!





The drive shaft was also pretty straight forward, I used the rear half of an a31/c33 drive shaft, message me if you want to know what front piece I used as there is a secret to the 6 speed box (has a different yoke to all other manual boxes).

The wiring side of it was pretty basic, I simply used the S14 loom (without the SR interior plug or wiper plugs - I hade to split the 25det loom to take the wiper circuit out of it and put that into the SR loom so the wipers still work) I wired the appropriate wires to the corresponding wires inside the car where the factory interior plugs are so it can be easily removed later by unplugging the plugs. (more info on wiring, send me a message) I used the RB temp sensor so the dash will read the correct temp. The lower loom just all plugged straight in as it often does with Nissans.




I will hide ECU at some stage as well

First turn of the key and it cranked and started, ran mint and everything worked fine with no leaks or anything, it was charging and everything. Success!

I ran it a couple of times in the drive while i was still finding a drive shaft front piece. Swapped the blue front bumper that had been cut up for the drive shaft front piece and $50. Car came with 2 spare ones so I just put one of those on, which will get painted soon.

There you have it, SR20 and 6 speed into an A31 Cefiro


CLICK HERE to see it running after its first drive up the road and back 8)