kfze swap

mazdaguy · Post by **mazdaguy** » August 12th, 2007, 10:03 am

hey fellas, new to this group. I own a 95 mx-3 gs and i was wondering how much work there was to putting the kfze motor in the mx-3. I hear that its not worth my while to upgrade to the 2.0 L kfze and the Klze seems to be the fan favorite, but i can get a really cheap deal from a local guy and with my old K8 getting up well in the 200 k range i think its time to do a swap. However if there is too many mods for the kfze then i won't bother to swap and prob just get another k8. Any suggestions?

1992blazeredgs · Post by **1992blazeredgs** » August 12th, 2007, 11:05 am

It wont be any more difficult than pulling your k8 and replacing with another. Once you see the motor, if you have not already. It will look identical to your k8 besides a different IM. The only two differences i would look into, is what vaf and ecu you run with a kf.

Nate

Nd4SpdSe · Post by **Nd4SpdSe** » August 12th, 2007, 11:41 am

Hmm, woudln't it be better to get a DE? Cheaper, just like 5hp less (of the 170hp version) but should have alot more torque than a KF

mazdaguy · Post by **mazdaguy** » August 12th, 2007, 12:13 pm

i agree, probably would be alot easier to go with the de......much easier to find parts. However i find it really hard to pass up the deal on the KF i mean its almost a gift for 100 bucks. The only things i'm kinda sketchy on are if the ecu, vaf, intake manifold ( straight neck) will work. i know u can get the stock k8 ecu chipped for the klze but i don't kno about the kfze.

Mnemonic · Post by **Mnemonic** » August 12th, 2007, 9:45 pm

eh the kf and the de are more or less the same power wise, the de gives you a bit more torque but i just aways liked the kfze better, just seemed to be alot more fun than a de

As for the ECU i just put one up in the forsale section Kf15 the one you need check it out

hgallegos915 · Post by **hgallegos915** » August 12th, 2007, 9:52 pm

yeah the ecu IS A MUST for the kfze. I got one but im selling the whole thing local, engine went udner water but seems to turn well.. odd ..

thaty engine seems to be cursed lol no joke

mazdamx3freak · Post by **mazdamx3freak** » August 12th, 2007, 11:01 pm

everyone says you need the kf ecu but i did a swap for a friend and it runs/idles fine and thats 8 months running strong...

Mnemonic · Post by **Mnemonic** » August 12th, 2007, 11:42 pm

no, no one ever said you have to have one to run it, but it will run better with the original ecu that was made for it, granted you can run a klze on a k8 ecu for the rest of the motors life, doesnt mean its going to run the way it was designed to.

hgallegos915 · Post by **hgallegos915** » August 13th, 2007, 12:12 am

mine ran like crap with stock ecu. Maybe its the kfde the one with cup shaped pistons. That one should run well with k801 ecu?

Mnemonic · Post by **Mnemonic** » August 13th, 2007, 1:48 am

that was mine the 1st day i got it, yea it didnt last a hour before we started ripping it apart

and after all the work

Post by **Custommx3** » August 13th, 2007, 9:54 am

Dont swap a KFZE.. bad luck with those motors seems to go around..

mazdaguy · Post by **mazdaguy** » August 13th, 2007, 5:37 pm

isn't the correct ecu for this setup the kf15?

Tunes67 · Post by **Tunes67** » August 13th, 2007, 6:18 pm

Nice work man.. looks excellent

Dont swap a KFZE.. bad luck with those motors seems to go around..

Damn supersticious rednecks.. dont push me Barry.. I'll put one in my GS just to piss ya off

LOL

Tunes67

Mnemonic · Post by **Mnemonic** » August 13th, 2007, 6:54 pm

yea the kf15 is the one to use, i had my ecus mixed up

hahaha dont listen to barry, there good engines just had a string of bad luck within 1 year.
I had a flash back durring hurricane Ivan and thought i was back on a submarine and took the mx3 under water and killed mine, Barrys had an oil issue, now if it was operator error or an engine problem i can not say, i remeber getting mad at him because of how he cranked it up and well hector decided that he didnt need no water let the mf burn, burn mf burn lol fire due to fuel leak or electrical problems or both i'm not sure....

mazdaguy · Post by **mazdaguy** » August 13th, 2007, 7:50 pm

the kfze that i'm lookin to buy is the straight neck square runner that u are talkin about.....so this will not fit into the mx3?