Destroking a DISI MZR I4 (mazdaspeed3/6)

[F2T guy]

Im looking for some information on destroking a speed

has this been done yet, is it even possible and what crank/rod/piston combo has been used if so?

I had thought about destroking a short block as a project and putting some regrinds in the head to get another 1500 rpms out of it, I know I would loose some lowend torque but Im ok with that

 

[creedns]

get an evo, you can rev it sky high, as well as do everything better than a speed can

 

[njaremka]

you could probably swap in an MX5 2.0 crank to de-stroke the MS3 engine, but the loss in torque would probably be less than thrilling. i would imagine you could get stronger rods and forged pistons for the 2.3 and boost the crap out of the engine to get all the power you think you need.

 

[jeff4880]

Its is possable to do destroke or stroke any engine. there are companies that can modify the stock crank (Marine Crankshaft) and JE/Carrillo can make custom pistons/rods. you better know what you are doing though to do something like this. There is alot involved in changing the stroke of a engine.

 

[F2T guy]

ok good info, thanks guys

I was just looking for some basic info to see if this was something others have done easily with factory mazda components, Im not wanting wanting to get that involved with a complicated build and having to deal with obscure C/R's not too interested

 

[Darth Vader]

How 'bout looking at an MZR-R engine? All the thinking's been done there for you.