Has anyone ever put an X300 engine in their XJ40?
Joined: Feb 2010
Posts: 28,809
Likes: 11,279
From: Adelaide Stralia
Basically, and very briefly, YES, it will physically fit.
Engine management will be a challenge, but not impossible.
Power steer pump has different angle of the dangle, as far as hose connections at the pump is concerned.
Wiring, as in injection, ignition, engine management etc is totally different. The AJ16 EFI is Nippon Denso. The ignition is 6 individual coils that are ECU fired, no plug leads etc.
There will be a MYRIAD of "not quite the same" areas that will frustrate the hell out of you in my opinion.
As I said, do-able, but really not for me, buy an X300 and get the real deal.
Engine management will be a challenge, but not impossible.
Power steer pump has different angle of the dangle, as far as hose connections at the pump is concerned.
Wiring, as in injection, ignition, engine management etc is totally different. The AJ16 EFI is Nippon Denso. The ignition is 6 individual coils that are ECU fired, no plug leads etc.
There will be a MYRIAD of "not quite the same" areas that will frustrate the hell out of you in my opinion.
As I said, do-able, but really not for me, buy an X300 and get the real deal.
Junior Member
Joined: Jun 2011
Posts: 3
Likes: 0
From: eyemouth
a regular swap over here, drop a 300 engine in, use the 40 distrubutor and leads, whip out the coil packs, and run it on the same ECU's works on 3.6 and 4.0 Uk 40's so i see no reason why it would not work on a 3.2 or any other XJ6 engined car of any market spec
we have a number of supercharged XJS's over here too
we have a number of supercharged XJS's over here too
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