Miata Swap..?

[JeremyP]

i was reading about someone doing a miata head swap..i have a 94 mx-3 with bp from 93 escort gt..if this is possable..what would i need?, junkyard miata head?..i was thinking about cleaning one up..rebuilding it...put it in when spring rolls around...i need some help with this one though..will a miata head bolt up to a bp?..i have history of mechanics in my family...so tools...are unlimited...i just gotta know what i need parts wise....or major modifications? any help would be appreciated

thanks, Jeremy.

[Limegreen mx-3]

come on u know better

http://www.mx-3.com/phpBB3/viewtopic.php?f=24&t=59830" onclick="window.open(this.href);return false;

i posted pic i don't know what happen

[Limegreen mx-3]

found it

http://www.mx-3.com/phpBB3/viewtopic.ph ... miata+head" onclick="window.open(this.href);return false;

hope it helps out

[JeremyP]

ok...so what year miata head do i need?....should i try junkyard?...then just build it up with performance parts?..thats what i had planed..

[Limegreen mx-3]

94-98

it doesn't matter most of the miata parts for the head will bolt on to a protege/ escort etc bp head..

but if u want a jy miata head than go for it

[lazzer408]

You can use 2 exhaust cams (ext on intake side) and gain some ponies. You have to hack the dist drive off the cam.

[JeremyP]

can you explain a little further?

[Limegreen mx-3]

about what

[lazzer408]

can you explain a little further?

About the cams? From another thread...

"pre exhintake cam 117WHP 112FT. LBS"
"afterwords it was 128WHP 116FT. LBS"

You use an exhaust cam and put it in the intake side. When you try to you'll notice it won't fit because of the cas drive on the back of the cam. Hacksaw it off. It also installs 180deg then 3 teeth clockwise +6deg.

[JeremyP]

then do i keep the stock bp cam in the other side?

[lazzer408]

You need 2 exhaust cams. one in the exhaust. one in the intake.

[JeremyP]

should i go with the stock meiata cams..or get something a little better?..sorry for all the questions....just..."hacksaw" and "cam" are two words that usually dont go togather that well, lol

[lazzer408]

From what I read the Miata cams are pretty good. There's always room for improvement on anything but lets just say they got them pretty close to optimal imo. Any gains are minimal and 1/2lb more boost makes up for it. As far as the hacking cams. All your doing is cutting the crank angle sensor drive off the end of the exhaust cam so it'll be short enough to fit the intake side. If it's a boosted engine don't bother with cams. If it's n/a and your trying to get every ounce of oomph out of it, get cams. Your money will be better spent elsewhere like head work. Unshroud those valves!

[JeremyP]

yah its not boosted, ...if i do boost i get a new bp and do it right...just trying to get a little more outta her.

[lazzer408]

I wouldn't bother. For the time effort and money it takes to make another 25hp you could boost it. I did my mx-3 (1.6) for $230 for 5.5lbs (no intercooler yet) and my Miata (1. for $250 for 12lbs (intercooled).