What's your views on dropping a 2.3 lump into the ST (all opinions are appreciated whether good or bad)?

Cheers

is this opposed to Jamsport 2.3 conversion ? and whats your thinking ?

I can't answer anyway, don't know enough.

Well Conserving the ST engine is already a 2.0 Litre, I think it you were going to do an engine conversion, to stick a bigger engine in than a 2.3 Litre...

Its not much of a big increase. If your looking to do it, I would suggest sticking in a 3.0 Litre lump or something like that, Make it worth while...

I’m not sure if that could be done or not, But defiantly go with a bigger Engine than a 2.3 Litre if you were planning on doing something like this.

2.3 should be a straight swap it's the same engine basically.
IIRC it might be a tad taller but if you're using a K&N it shouldn't be a problem.
You would need to carry over all the ancilleries from your ST engine plus the ST's flwheel, clutch and starter motor. And I would imagine you would need to use the ST's manifolds as well.
This engine would definately benefit from a larger throttle body that the standard ST's though.
I think you'd only be looking at about 175BHP though, without cams/cats/exhausts etc etc but it would have a much improved great spread of torque compared to the 2.0.

You could find yourself a written off Mazda 3 MPS and stick the engine in out of that - 265 BHP straight out of the box.
Has anyone done this yet?

Good luck with the gearbox though

Thats a good idea hmmm whos mazda 3 can I write off?

Dave how much is a new gearbox?