W116.org

Hi, haven't been around for a bit, mainly due to blowing up the engine of my 450 SEL.

I now have a bit of time to scout around for a new motor, but I want to make sure that I get something that will drop right in.

I believe I have a k-jetronic....



... and a USA version to boot. Are there any issues with catalysators or anything that I should be wary of ? Or are such things external from the motor ? I am living in Europe, so I'm guessing that euro versions of the motor will be more readily available.

Would installing a D-Tronic be feasible ? I'd probably prefer to travel further to purchase a motor that dropped straight in as opposed to spending days messing around with electronics and the soforth.

Also how long would the transplant take for a chap with a semi-pro garage? I'm thinking of hiring someone to do it for me for a semi-fixed price.

TIA as always,

- scraf

You should be able to remove the throttle body and swap it for the D-Jetronic set up. The US spec engines are a lower compression engine so you wont see the same grunt that you had.

Should be a simple matter to put in a late model Euro K-Jet and leave off all the smog gear.

The 1979/80 Euro K-Jet had the same power as the earlier D-jet while the 76/77 K-jet was a little down on power.

All would leave a USA Spec motor in the shade.

I don't think it is easy to swap K-jets and D-jets as I believe they have different fuel pressures and wiring harnesses.

Bill

That engine looks exactly like mine and from what I understand, the SEL was a mostly US thing so I'd say you are right about it being a US version.

My cats are part of the exhaust manifolds so I would guess that you'll have to figure out exhaust manifolds if you switch to a euro engine.

Michael

anyway you go is going to require modification.

You'll need the euro exhaust to go with the euro engine, as said previously, the US version has catalyzers as well as possibly O2 sensors and an air pump. Shouldn't be too hard though.

You will notice a big difference in power too, the biggest horse power thief is the catalizers, not the lower compression ratio.

... as it goes I need a new exhaust, well the middle box at least.

Um, if I read this right, the US version has fancy cat stuff in the exhaust, that won't be necessary for a Euro version, thus, no problemo, just disconnect ?

... and there's a good chance I may be able to go faster !!!!

My manifolds are two piece with bellows in the center.  They exit at the forward end via a downward U turn to which the cats are bolted.  The cats exit to the rear and connect to the exhaust system.

I don't think you will be able to bolt any of the more normal manifolds to the exhaust system without some sort of adapter but I could be wrong.

Michael

Is this what your talking about ??

There are other USA specific manifolds too

I don't know about all that stuff, I can't stop looking at the other picture just below where it says posts 2,224, can we get a larger version? Is this the same lady who modelled Oscar's T-shirt?
I think we should be told.
Chris

Them are the ones.

Don't supposed they might be a bit restrictive?

Them thingy's that Greasemonkey points out don't look to restricted, altho I'd be on restriction if I got caught restricting them>

Michael

That manifold design is rediculously restrictive mate, let alone the prehistoric catalyzers. The sharp U turn at the front is a major bottleneck to exhaust flow.

The Australian version engines are also lower compression, but without the catalyzers, their power output isnt in all reality much less than the Euro versions. You will see similar levels of power on a USA version engine without that restrictive exhaust system.

Dude, those manifolds are insane. I can see why early cars with catalytic converters were lacking performance. This looks like a pre-alpha version of...

Tim

Those Perth based MelonSmugglers are affecting my eyesight.