M series stroker

As a minimum you would have to replace/swap the pistons ( if they are interchangeable) as the extra throw on the crank would drive the pistons into the head.

Lambert wrote: Also, and this is a lot of work, is it possible to get the additional 5mm diameter out of the cylinders of a 1.6 to get up to 1.8 or indeed beyond that?

If getting to 1.8 is possible i think that would be interesting.. You could also get a high compression 1.8 as most european m16a have 11.1 CR and the 1.8 has 9.5 CR.

However the M16 do have a higher cylinder block and i guess more crank throw than the M13 so i guess the M16 is already maxed out except for the bore.
There is also a M15 sport engine and that could possibly be a M13 with more crank throw..

Cost compared to what you get is of course way beyond reason wich makes it kind of fun to do i guess.

I looked into all this before doing a 1.6 swap and it is indeed much easier to just swap the engines. The 1.6 engine is a stroked 1.3 with a taller block. To achieve the same in the 1.3 block you would need custom pistons and if you are going to that much effort why penalise yourself by using the block with least potential? Spend the money on bike throttle bodies for the 1.6 instead...

Where do you find cheap 1.6 engines? Around here (Germany) they are quite costly. Maybe a shopping trip is in order...?

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I got my 1.6 vvt from a 2010 crashed low miles swift sport for £280, probably that again on bits to make it all fit and run properly (liana throttle body currently). Runs sweet as a sweet thing

Bike throttle body's would be interesting. Be nice to get a bit more go out of it without going down the turbo route.

Can you get/import the 1.8 injectors and try them in the 1.6 engine?

I don't think the injectors are close to their limits on a standard 1.6. The inlet and exhaust manifolds are an obvious restriction though. Motorbike throttle bodies would solve the inlet issue and have provision for suitably sized injectors, and a tubular manifold would help with the exhaust. Find a set of sporty cams (swift sport?) and fit a megasquirt and you would probably be knocking on the door of 130hp.

But I still think fitting an MX5 engine and gearbox will be the best route to get good performance. 138hp standard from the older 1.8s and plenty of potential for forced induction. If I didn't have 3 motorbikes and a track car taking up my shed time that's the route I'd be going down with a Jimny.

ilten wrote: Where do you find cheap 1.6 engines? Around here (Germany) they are quite costly. Maybe a shopping trip is in order...?

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In Norway for some reason the m16a from a Liana is half the price of a m16a from the other Suzuki cars.
And it is the same engine.
Approx. 600£ or 500€ at a wrecker for the Liana and twice that for a swift engine.

I guess it relates to the used car prices and that Liana is a reasonably priced car compared to the others.