2.9 efi conversion

[masterpimpofdoom]

morning all, Im quite set on doing a conversion to the 2.9 efi v6 for various reasons. Ive been reading about and cant really seem to find much in depth info on what parts are needed and how to do the conversion. Can anyone point me in the directions of somewhere i may find all the relvant info???? I feel quite confident to do this ( apart from electrics! ) but i just like to have all the info and know what i need to get before hand!!!!

Thanks a lot for all the help!
Craig

[Beakster]

Some info here under the 24v section: http://capriwiki.com/index.php?title=Engine_Conversions

Capri Andy and Stefan Capri on here both have the 12v 2.9 and I have the 24v so you should be able to get plenty of help. The FordPower.org.uk forum also has lots of good information, you need to sign up to see the engine forums.

If you have a 2.8 already then that helps, otherwise you need a 2.8 engine cross member, fuel tank and pump, power steering rack, radiator, gearbox, engine mounts. Then you really just need a donor car to get the engine, wiring loom and ECU from.

[Ghia15]

As chris said.

Cars with 12v and 24v engines can still be picked up relatively cheap.

I recently got a 1995 scorpio with a 24v engine in it for about £400.

Just need to wait for the right car to come along at the right price.

[masterpimpofdoom]

Cheers Beakster, Ive pm'd andy and am now gonna have a good read through the link you sent.
I have a 2.8i with a 5 speed box and 2.0l diff at the mo.

[Capri_Andy]

Ok so, here's what you need to know...

The early version of the 2.9 (86-91) with air flow meters is better than the later lambda cat converter spec engine. The later engine has hydraulic tappets so they never need adjusting but the limiter is 5800rpm! The early 2.9 in my capri likes to pull strong all the way to 6000 but my late 2.9 granada starts running out of puff after 4500rpm.

You will need to find space and make brackets to mount the air flow meters on an early engine. Aftermarket air filters will be required.

If you cant buy a complete donor granada to harvest the engine from, make sure the ECU and uncut wiring loom is present when you buy an engine. The looms in granadas unplug from inside the dash, there is no need to cut any wires.

For the power steering you have 2 options, I did the latter:
1. Relocate the battery to the boot and remove the battery tray to make room for the granada PAS pump and plumb the capri steering rack into that (custom pipes?)
2. Keep the battery where it is and remove the granada PAS pump from the engine and fabricate your own brackets to locate the capri PAS pump on the mounts of where the AC compressor used to be, and use normal capri pipes.

Wiring is not too hard, its about 6 or 7 wires inside the car for things like 12v, ignition, rev counter, etc. The ECU fits between the ashtray and the heater box. Drill a 2inch hole with a hole saw in the bulkhead to pass the loom through and use a suitable rubber grommet.

Ill add more if I can think of any,

[masterpimpofdoom]

Thats exactly what i need to know Andy, Thank you! what about gearbox? i have a 5 speed in mine at the mo, will it just bolt straight up or will i need a bellhousing adapter plate? which clutch and flywheel? Really appreciate your help!

All the best,
Craig

[Beakster]

Take the flywheel off your 2.8 engine and bolt it to the 2.9 (using the 2.8 bolts), and bolt the clutch from the 2.8 on as well. I think you'll need a spigot bearing to put into the crank, still available from Ford for about 5 quid.

[Ghia15]

If Your clutch is worn then you might think about an uprated one. That would ensure full power transfer to the wheels

[masterpimpofdoom]

Super stuff, thanks a lot gents!

[masterpimpofdoom]

I got a brand new 2.8 clutch boxed up in the garage so that's covered, will the normal 2.8 5 speed box be ok with this engine as the power output is quite similar? And do you think the 2.0l diff will be ok?

[340truck]

PM me - might just be able to help you out!

[masterpimpofdoom]

Thanks to everyone for the really helpfull info, I really appreciate it!
Craig

[Beakster]

I got a brand new 2.8 clutch boxed up in the garage so that's covered, will the normal 2.8 5 speed box be ok with this engine as the power output is quite similar? And do you think the 2.0l diff will be ok?

Yeah a normal 2.8 Type 9 5 speed box will be fine for the 12V. It's on its limits with the 24V engine though but plenty of people use it anyway.

If a 2.0 diff is what you have then use it. If you find the revs to high on the motorway then replace it for a 2.8 one. I'd prefer the 2.8 one for fuel economy on long trips, but plenty people prefer the 2.0 one for quicker acceleration.

[Ghia15]

As far as I know the 2.0 Diff Is just as strong as a non LSD 2.8 as it is only the ratios that have changed.

As far as I know the 2.9 has more toque than the 2.8 but about the same power, as chris said the 5speed type nine should be up to the job,

If you wanted something a bit stronger then you could drop an 2wd MT75 box in but that requires a modiifed prop shaft and a modified Xmemeber to mount to the original gearbox supports.

[Capri_Andy]

Exhaust downpipes.

There aren't any off the shelf downpipes to connect the 2.9 exhaust manifolds to capri exhaust systems. If you're handy with the fabrication im sure you can make something fit together.

I drove mine 40 miles with no exhausts to pay powerflow to make stainless steel downpipes to join to stainless janspeeds.

Start a projects thread about your conversion. It will be interesting to see how you get on.

[masterpimpofdoom]

thats a good point, hadnt even thought about exhausts!!!

[jayev]

im doing the same conversion but starting with a 1.6 ive got all the parts need baring 2.8 fuel tank is there any way round not having one or do you need the 2.8 tank

[masterpimpofdoom]

As far as I'm aware mate you do need the 2.8 tank as its different to the 1.6/2.0

[Beakster]

im doing the same conversion but starting with a 1.6 ive got all the parts need baring 2.8 fuel tank is there any way round not having one or do you need the 2.8 tank

There is...

First you need a fuel return in your tank, this is in the sender. I don't think the 1.6 sender has one, so you need to weld one or, fit a 2.0 sender.

The you need a swirl pot mounted somewhere. You feed this with the output from your mechanical pump if you have one, if fitting a 2.9 you wont have one though so you need to get an electric lift pump capable of lifting the fuel from the tank outlet to the inlet of the swirl pot. You can then mount an electric injection pump below the swirl pot outlet and use that to feed your engine.

[Capri5oh]

I'm in the US so bear with my engines. I had to install swirl pots and they are done as Beakster shows.

I've done a 2.9 conversion here but pulled it and went to 2.3 (LIMA) 4 cylinder turbo engines.

The engine in the white car is running a T3 turbo, hot cam, with an air to water intercooler. Approximately 275 hp at the wheels @ 22 psi boost.

The engine in the orange car was modified to accept a Volvo 16V DOHC head. It is running a T4 turbo with an air to air intercooler. Approximately 325 hp at the wheels @ 14 psi boost.

Both cars run 75 pph injectors and are tuned as speed density (no air meters) using Quarter Horse chips with Binary Editor to do the programming.

Here are pictures of my two Capri's with swirl pots in place.









And two short vid's. Vid's were taken before I installed the swirl pots. I installed the swirl pots cause unless the fuel tank was fuel I had starvation on acceleration.

http://s29.photobucket.com/albums/c272/ ... 925531.mp4
http://s29.photobucket.com/albums/c272/ ... 926551.mp4