Jaguar f-type engine swap v6 to v8--can do?

[marksal]

I am looking to swap a 3.0 v6 (380ps) f-type 2013

-with a -

AJ-v8 P575 (508ps) 2021


1) Can this be done, straight out and in, all fittings back on.
2) Will i need a new ECU, or alter the existing one.
3) Any major differences that would stop me doing it.
4) Is it best to take the engine out from under or out from the top.

Am help would be great.

[cobra kid]

Would it not be a whole lot easier to swap cars??

[WPA]

cobra kid said:

Would it not be a whole lot easier to swap cars??

This 100% also worth considering that insurance wise a converted car could be more expensive to insure against a factory car.

[DonkeyApple]

marksal said:

I am looking to swap a 3.0 v6 (380ps) f-type 2013

-with a -

AJ-v8 P575 (508ps) 2021


1) Can this be done, straight out and in, all fittings back on.
2) Will i need a new ECU, or alter the existing one.
3) Any major differences that would stop me doing it.
4) Is it best to take the engine out from under or out from the top.

Am help would be great.

It should all be doable. The AJ126 is the same block as the AJ133. However it makes no financial sense.

I'm guessing your V6 has gone pop and you've had the logical thought of replacing it with the V8 instead of another V6?

[MustangGT]

WPA said:

cobra kid said:

Would it not be a whole lot easier to swap cars??

This 100% also worth considering that insurance wise a converted car could be more expensive to insure against a factory car.

Likely also cheaper to swap cars provided the V6 is functional.

Edited to add, pretty much anything is possible if you throw money at it, however, does it make financial sense?

[GeniusOfLove]

Sorry to be rude but If you have to ask on an internet forum "can this engine swap be done" and "how do I get the engine out" then even if it can be done it can't be done by you.

The V8 will have differences in torque converter, gearbox, and final drive to cope with the extra torque it could even be a different model of ZF8 completely. Springs and dampers will also be different, ABS and stability calibrations will be different, and probably all sorts of other things.

Someone can doubltless do it and get it to run, and get all the warning lights off too, but it'll always be an unsellable lash up when there are a billion "real" V8 ones around.

[J4CKO]

I swapped an engine on a Rover 820 years ago, same car, same year engine and it wouldnt run, I used the clutch and flywheel off the new engine that didnt marry with the ECU in the car, the reluctor wheel (picks up where the engine is in its stroke) on the back of the flywheel had changed in that model year. Tried allsorts to get it to run, had a Eureka moment one evening and went through what was different, swapped the clutch and flywheel and it fired straight up.

So, thats the same year car and same spec, and there was an issue, this is eight years further on and a different engine, I am sure it is doable but its how much agro is involved, its the kind of thing you need significant experience of similar to undertake, workshop manuals and really both cars side by side. 2021 engine would be from the facelift car as well.

[ThomW]

marksal said:

I am looking to swap a 3.0 v6 (380ps) f-type 2013

-with a -

AJ-v8 P575 (508ps) 2021


1) Can this be done, straight out and in, all fittings back on.
2) Will i need a new ECU, or alter the existing one.
3) Any major differences that would stop me doing it.
4) Is it best to take the engine out from under or out from the top.

Am help would be great.

1) No
2) Yes
3) Lots
4) If you have to ask this, please don't try

[Baldchap]

Many years ago (i.e. simple cars) I met a bloke who swapped a PD100 1.9TDI for a PD130 1.9TDI in a car that was available new from the factory with either engine. Some of you probably know of him.

Despite being an 'identical' engine in a different state of tune, highlights included needing a new wiring loom.

Engine swaps aren't trivial in anything these days. Anyone who says 'just put X in, it's a straight swap' is almost always completely wrong.

[996_3.4]

Add to this the fact that 2021 engines run OPFs while 2013s don't.

I think F-Type V6s ran the 8hp70 just like the V8. Brakes should be different. Rear end is different and electronically controlled on the V8s vs. mechanical on V6S.

Can it be done? Yes.
How complex and costly is it for an advanced tinkerer? Weeks to months of work, and well, well into 5 figures.

If your V6 st the bed and you feel like a V8, replace your V6 with the same engine (should be mechanically identical to a 340hp non-S engine, btw), sell the car, buy a V8-engined one.

[njw1]

Someone once said to me; 'there's no point building a car that you can buy', they were speaking a lot of sense IMO.

[Jamescrs]

njw1 said:

Someone once said to me; 'there's no point building a car that you can buy', they were speaking a lot of sense IMO.

This is the correct answer, it makes no sense to do the swap, even for someone who knows what they are doing with it

[brillomaster]

Anyone else really keen to see what marksal eventually comes up with? First it's trackdays in an rs6, then building a custom double wishbone setup, now it's attempting to swap a v8 into a jag. What's next? Diesel mustang? Electric Caterham?

Whatever it is it's going to be a frankensteins monster for sure!

[Panamax]

njw1 said:

Someone once said to me; 'there's no point building a car that you can buy', they were speaking a lot of sense IMO.

Sounds a close relation of this one about modifications; "If you want a better car, buy a better car."

[Baldchap]

Panamax said:

Sounds a close relation of this one about modifications; "If you want a better car, buy a better car."

I agree with this to a degree. I certainly think anyone modding anything but the best model of a particular car is a bit silly. There comes a point where there isn't a better car that ticks all the boxes and at this point you 'need' no mod.

[DonkeyApple]

Jamescrs said:

This is the correct answer, it makes no sense to do the swap, even for someone who knows what they are doing with it

I'd assumed the OP had a car with a blown engine so was just pondering whether the next size up would fit as the replacement. Like replacing a blown 998 with a 1275 rather than another 998. Sadly, the days of cars being that simple are long gone.

[samoht]

I knew a professional mechanic who swapped an RB26 into his S14. Engine was in the bay, looked mint. He never managed to get the car to run, the electronics defeated him, and ended up selling for peanuts as a non-runner / unfinished project.


The only way I can think this could work is to start with a crashed V8 car and strip out all the mechanicals and electronics, and install them in the V6 shell. So basically you have to strip both cars out fully, then install the guts of one in the other.

It's still an insane amount of labour so wouldn't be worth doing financially, but it is at least theoretically possible with enough hard work.

[DaveCWK]

Not sure why'd you bother. Technically possible yes, but will l likely be a world of pain & with loads of issues thrown up that you wouldn't even think of like some central locking module or similar in the door being incompatible with the V8 ECU.

To do yourself will require time, skills and equipment.

I'd only think about paying someone to do it if it's already a very well trodden swap that a specialist has done 10+ times, knows how to rectify all issues and can give you a fixed price based on that.

[DaveCWK]

Panamax said:

njw1 said:

Someone once said to me; 'there's no point building a car that you can buy', they were speaking a lot of sense IMO.

Sounds a close relation of this one about modifications; "If you want a better car, buy a better car."

I think mods are a bit different. Because 'my perfect car' doesn't exist. Modifying the car that's close enough, gets it closer.