Mazdaspeed3 2,3L in Mazda3

StreteSpd

Member
Has anyone done this swap? What would be involved beyond the motor and ECU? I'm thinking Driveshafts, brakes, rotors, pistons, brake master cylinder, and springs/shocks... anything else?
 
lots more work than you'll ever imagine... If you do it, you'd spend more money than if you were to just buy a mazdaspeed. However if you have the money, please feel free to write a how to and be the first. You'll also need transmission, our transmission and their transmission is not interchangeable.
 
I'm not sure if you have a hatch or a sedan but it's been done with an 05 hatch.
Search for spek1098 on M3F
 
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lots more work than you'll ever imagine... If you do it, you'd spend more money than if you were to just buy a mazdaspeed. However if you have the money, please feel free to write a how to and be the first. You'll also need transmission, our transmission and their transmission is not interchangeable.
thats a lie.. ppl convert mz3 trans with ms3 trans all the time, all you need is axels, shifter linkage and custom trans motor mount.. housing bolts right up !!

as far as putting a 2.3 DISI to a regular mz3... it will require new fuel pump, new ECU... just a lot of work, and 2.3mzr motors can make much more power when built then swapping to a DISI motor... no DISI reached 500whp yet.. and 2 or 3 ppl did on mzr with no problem... so there you go.
 
Gonna need a ms3 fmic and the cluster as well as the abs/dsc unit to if you want the brake setup, nice to have the extra stop with the extra go
 
Mz3 2.0

I am also interested n this swap... Bcuz im looking 2 eitha swap my 2.0 engine for a mazdaspeed.. Is this possible and does anybody know the price range id b looking at?
 
again.. NO REASON TO PUT A SPEED3 MOTOR IN MZ3....
mz3 motors can make much more power then speed3 motors.. its proven so far..
as far as the trans.. swap like that would run you around 2500 for transmission only...
again.. i dont see a reason to go through so much s**t to put a speed3 DISI motor into our cars.. NO NEED TO, NO REASON TO EITHER...

just build ur motor, and boost it.. ur still gonna come out cheaper
 
mz3

So what all would b needed 2 boost my 3... Its a 2.0 automatic... And around how much do u think it would b?
 
Got to love all the ignorance floating around in these forums, it was proving all you naysayers wrong that motivated me most. I did my swap for as much as it cost for a turbo kit. That included engine and transmission with less then 14k on them, suspension, wheels, interior, and all the items needed for a swap. I was able to sell the extra parts I had to pay for the FMIC, Cobb Sways, Springs, CAI, and HKS SSQV.

Good luck boosting a car, building the engine, upgrading the suspension, and upgrading to a 6 speed with a LSD for $5000.

Still say there is no reason to do a swap?

Now I have a Mazda5 for a winter car and have all the spare parts that came off my original 3 that I will eventually use on either that or my half-breed.

If this isn't reason enough for you, I assume your ability to reason is severely lacking.

No doubt you can currently get more power out of the N/A head then out of the DISI head, but I question the thinking of people wanting more the 350hp in a FWD car. Traction is tough enough at 300whp. That much power is only really useful in RWD or AWD platforms.

To Jnash: It's up to you the route you want to go. I have a feeling there a few totaled MS3s out there that would make good donor cars. And you need to be willing to put in a bit of time to do a swap, took me about 3 months working with it over the weekends. Don't bother boosting an auto, it won't last. You could always swap in a 5 speed and boost, but I can't see that being any cheaper. Best way to do a swap is to have cash in hand and find someone who just totaled with a intact drive train.
 
There's no reason too.

A built, turbo 2.3 motor is easier to make power with than a DISI 2.3 in the speed. The DI motors are capped at around 370-380 WHP because of the direct injection system. You have to add another set of port injectors or put tons of hours into R&D coming up with a better DI system to break past that barrier. There's no reason to do a DISI 2.3 motor swap on a 3.
 
Yes, if you want excessive, unusable FWD power or a track only car, the DISI MZR head is not for you. I just preferred a cheaper option then trading in my unique SP23 for a speed, and this was a better, more well rounded option, then doing a build. I have 300whp, and that is already pushing it for a FWD car. But I guess for some more will always be better despite all logic.

And I have 20,000 miles on my swap with no issues to speak of BTW.
 
Thanks to both Wagonbacker9 and Spek1098 for providing a little logic and common sense. I find it lacking in disturbing quantities most of the time on this site.
 
There's no reason too.

A built, turbo 2.3 motor is easier to make power with than a DISI 2.3 in the speed. The DI motors are capped at around 370-380 WHP because of the direct injection system. You have to add another set of port injectors or put tons of hours into R&D coming up with a better DI system to break past that barrier. There's no reason to do a DISI 2.3 motor swap on a 3.

we've gone over 400, cp-e has some big announcement coming up in a few weeks, no alternate fueling source, but stupid amounts of power. I just want 325-350whp reliably. as other said any more is useless.
 
I would love just 300 whp... However, I don't want to have to go through a bunch of stuff to do it. That's why about this time next year... I am just going to give my MS3 to my g/f and upgrade to either a S5, M3, or a Camaro 2SS. Don't know which one I am going with... They all have their pros and cons.
 
I would love just 300 whp... However, I don't want to have to go through a bunch of stuff to do it. That's why about this time next year... I am just going to give my MS3 to my g/f and upgrade to either a S5, M3, or a Camaro 2SS. Don't know which one I am going with... They all have their pros and cons.

Im at 286 with just an intake, TIP and tune. Im sure a test pipe would push me over 300.....altho id love to have the s5

The tuner I went to is one of the best out there. and hes probably a 2-3 hr drive from you so......
 
I am at 257 with just the MS CAI. What does TIP stand for?

In any event, I would do some additional mods after the warranty expires, but I would be concerned it would make the car unreliable and I don't want my g/f driving it. If it was just me, that would be fine...

I suppose if there was some long term data with MS3s pushing over 300 with no issues (or minor ones) I would go for it. The problem is, the data just isn't there. If anything, I have seen quite a few "smoking turbo" and other issues with heavy mods.
 
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