Mk1 engine swap - auto to manual

[TigerK]

Hi all

My first post in this section

A friend has bought a MK1 MX5 1.6 with a seized engine, and has been offered a replacement engine which comes from an automatic. Usually I'd expect the differences to be in the gearbox, but are there any differences between an auto and manual engine which he should look out for? I'm thinking engine management systems etc...

Thanks in anticipation of your replies

Kevin

[paulmurr]

I could be wrong but I think the auto has different cams and different engine management.

Wouldn't it be easier to look for an engine from a manual car? There must be plenty about.

ETA - Hello

Edited by paulmurr on Thursday 3rd April 09:47

[TigerK]

Thanks Paul, much appreciated. I thought as much

regards

Kev

[MX-5 Lazza]

The auto engine is different from the manual engine.
It has different cams and runs at lower compression to move the torque curve down the rev-range to suit the auto-gearbox.
It is a good choice of engine if you are planing to turbo or supercharge but otherwise don't bother as it is down on power from a manual engine.

[TigerK]

Thanks again.

The hunt for a manual engine has begun

Kev