Replacing a sigma with a Duratec engine

[BMS7]

About all that's left of my SV 175 (360 to you) is the drivetrain and I expect it to be written off by the insurer. I have an opportunity to buy a new SV 275 ( we use EU cars herein OZ.). I am trying to find out if it is possible/ difficult to swap engines or engine and transmission into the new car. Hence the Subject above - replacing a Sigma with a Duratec. 
I assume obvious stuff like engine mounts would not be difficult but am trying to see if it is crazy to even consider it. 
if I can get some guidance it would be much appreciated.  I have an excellent mechanic who can do it all but is unfamiliar with the cars involved so I need Somewhere to start. 
Thanks,

Bruce

[ChrisC]

A lot will depend on the chassis age and power train combination, for example a Mazda derived gearbox won't fit is a chassis which is not designed for that gearbox, but a Type-9 (or 6 speed) will fit in either.    The chassis engine mount locations should be the same, obviously the engine mounts will be different.   The exhaust hole may be different, so you may need a side skin (or custom exhaust / headers), the problem is that's dependent on the EU spec, something I am not that familiar with.   It's the EU spec changes that really throws the spanner into the works, I would be more confident if the cars where UK spec.     

[BMS7]

Thank you Chris for the info. The more info I get, the more that I feel it looks possible but would be messy and, probably expensive. I appreciate your thoughts.

safe blotting. Stay Well

Bruce

[BMS7]

Thank you Chris for the info. The more info I get, the more that I feel it looks possible but would be messy and, probably expensive. I appreciate your thoughts.

safe blotting. Stay Well

Bruce

[Mrp]

It sounds like a brilliant project to me, I looked at doing it with my Sigma using new components and it was doable as long as you ignored the cost. But this gives you a perfect opportunity.

Mrp

[BigCol]

I considered something similar a few years ago and the response from everyone, including Caterham themselves when I asked about a potential parts list and an optimistic Caterham specialist was "DON'T!"

If you have a Sigma 7 and want a Duratec 7, sell the former and buy the latter...  I know that might be easier said than done for you!

The numbers involved will be considerable...  I suspect that if you have the bunce and the time and the enthusiasm then you could go for an Ecoboost...  I doubt it'd cost any/much more than a Duratec to install and will give you the potential for much more power.

Good luck!

[BMS7]

Thanks for that BigCol.

I think that idea is officially dead.  On to other options.

Bruce

[ScottR400D]

#6 except he already has a Duratec and all its ancillaries. Why would he buy an Ecoboost? 

In any case has anybody persevered with the Ecoboost? I know CC and several others have built those cars, at great expense, but I’m not aware of anyone actually offering the Ecoboost as a car or conversion. 

[DJ.]

Westfield seem to have adopted the ecoboost, and I know others who have converted, but I really wouldn't want to choose one of those over a duratec or even normally aspirated sigma. They are quick but throttle response has to be worse, and the torque characteristics make driving in the wet tricky to say the least.

[paul_w]

Are you able to get the whole written off car? If so I don't see how this wouldn't be feasible. I get that the conversion is expensive if you have to buy all the ancillary parts to upgrade a Sigma car to the Duratec, but surely in this case you would have all those from the wrecked car?

[Mrp]

That is exactly what I though, I investigated it using new parts and it was doable but uneconomic, however if you have a complete written off car it would be a interesting and fun project and feasible.

I also would have thought both being SV would help, my investigations were with S3 chassis. The only problem thing I I would have though is the gearbox as ChrisC mentioned better that they are both either Mazda or type 9.

Mrp