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Hi, next week I will buy a BPT engine. I dont what I need to install it. Do I need a ECU?, can I use my ECU?, how difficult it is?. I know that theres a forum with some info of the BPT swap but I think is not enough....please help

You need to use the search function along with checking the 4 cyl FAQ. Here is the link to the BPT swap information, scroll down to the 2nd post by Cre8v mx3, i found this information very helpful..
Link: http://www.mx-3.com/ubb/ultimatebb.php?ubb=get_topic;f=24;t=000001
About the ECU, i believe you can use the stock one, but its definately not recommended. If you can afford it buy a standalone or if your funds are low go with the GTX ECU.

Thanks Damien for the info...nice car dude...can use my car for 2 months with only the motor swap? or to avoid problems with the motor I need to install the other stuff ASA?..right now I dont have funds to buy the other parts...

If i was you i wouldnt put in just the engine without all the stuff needed to do the swap properly. My Swap still isnt done, i refuse to begin until i have everything needed to do a clean swap and end up with a good running, fast BPT MX3. Atleast get the basics if you cant afford the fancy stuff just yet.
Either way good luck to you and let us know how your swap goes.

Can I use my stock tranny ('94 DOHC)??

you can but most people switch to the mazda protege lx tranny and axles. the protege tranny is a little beefier.

You'll need to get a good clutch, the protege lx tranny and axels and alot of other things.
You could use your stock tranny, axels etc, but your running the risk of quick wear and tear and the tranny will die if the stock clutch doesnt first. Your trying to take the easy road in doing this but your eventually going to need that protege lx tranny anyways. If you cant afford this swap dont attempt it, you need alot more then just the engine. I believe i read MX3TT (Chris) had used his stock tranny with the bpt swap, not 100% sure though.

i was using my mx-3 93 ECU it was reprogrammed but i was running very RICH and i was IDling at 1100 rpm ( 230 KM) on a tank
i ordered the BP26( jspec GTX ECU) i am waiting for it

i am also using the protege lx tranny

i had a 93 RS soch

Hi, where I can order the GTX ECU??..Thanks for the help guys...

Originally posted by mx3_pr:
Can I use my stock tranny ('94 DOHC)??

Ashley wrote this a few days ago:

Originally posted by cre8v mx3:
the only problem is when those with the dohc try to use the stock tranny, the jack-shaft won't fit...
But, i recommend using the bp tranny.

Either use the Protege LX tranny and axles or as Ashley recommends, the BP tranny.

Run a search. You'll find tons of info.

the protege lx tranny is the BP tranny.

i got my GTX ecu on

a 323 board
323 yahoo groups

323 GTX website

<small>[ December 18, 2003, 12:15 AM: Message edited by: philcosta ]</small>

i just pluged in my GTX ECU and the car runs great

Thanks for the info Phil...