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NA EA82 motor into RX Turbo
Posted: Tue Aug 08, 2006 11:28 pm
by AndrewT
Hopefully this is a simple problem...
Car is a 1986 RX Turbo.
It's had a non-turbo 1990 MPFI motor dropped into it.
The motor starts and runs but very badly, I'm certain that the distributer setup is the cause...
Which distributer should I use? The one from the original turbo motor or the one from the NA motor? Does anybody know the correct configuration of which spark plug lead goes where in this scenario?
Thanks in advance, a.
Posted: Wed Aug 09, 2006 10:33 am
by Suby Wan Kenobi
The firing order is 1-3-2-4 (its DS front back then passenger side front backand) use any dizzy as they should be the same in how they work (unless it some how had a gutless one)
Posted: Wed Aug 09, 2006 11:51 am
by AndrewT
cool thanks for the info, but how do I tell where they plug into the dizzy, it doesn't have any numbers printed next to any of the lead sockets...
Posted: Wed Aug 09, 2006 2:59 pm
by BlackMale
Andrew the dizzy does matter. Some have more wires coming out of them then others you will need to run the original 1.
Posted: Wed Aug 09, 2006 5:01 pm
by mattims
ooh .. i should know this ... for some reason i remember how to make fireballs come out the carby but not how to make it run right.
My ea82 has a different firing order to jaffs ea82t and it has a different dizzy to my old (actually newer) ea82, which had a different set of wires coming out of the bottom so i couldnt see how to make it work.
Posted: Wed Aug 09, 2006 5:12 pm
by AndrewT
This one has had the EA82turbo dizzy swapped onto it. To make it even more complicated this dizzy has had an external Bosche module wired into it which does something.
I need to put the original NA dizzy back on methinks.
Posted: Wed Aug 09, 2006 7:04 pm
by BlackMale
Me thinks your wrong lol
Posted: Wed Aug 09, 2006 7:13 pm
by Craigus
Here's the dizzy and plug wiring from the EA82T manual:

Posted: Wed Aug 09, 2006 7:53 pm
by Suby Wan Kenobi
The dizzy cap should have a moulded in line next to one of the plug sockets to tell you your at Number one
Posted: Wed Aug 09, 2006 8:15 pm
by AndrewT
Oh yeah Jaffa sorry I misunderstood you, you meant the original dizzy from the car not the original from the NA motor

Posted: Wed Aug 09, 2006 10:57 pm
by AndrewT
Thanks heaps Craigus! Followed the diagram and it runs nice and smooth now!
Happy happy.
Posted: Thu Aug 10, 2006 12:22 am
by subanator
Andrew, good to hear she is going.
I do remember when seeing that car, it originally had the 3 plug ECU turbo engine - so that had the vacuum push/pull distributer.
The N/A engine has a 4 plug N/A ECU - with crank angle distributer ECU controlled, and should have hotwire AFM, not flapper.
It seemed to have a miss match of various parts etc. This may effect overall tuning due to incorrect values to ECU????
Posted: Thu Aug 10, 2006 7:01 am
by Craigus
Excellent - glad to be of assistance.
Posted: Thu Aug 10, 2006 10:28 am
by BlackMale
Good to hear that she firing - see mattims its just the carb why we got fire balls (I'll never forget that) LOL
Posted: Thu Aug 10, 2006 10:30 am
by mattims
yeah,, well im pretty sure that carb is pretty badly setup. I have glued the standard airbox on top of it just to contain the fireballs until i can sort it out properly. But you cannot ever floor the car even at revs say 4000rpm in neutral if you floor it it will cough from too much fuel.
Posted: Thu Aug 10, 2006 10:38 am
by BlackMale
mattims wrote:at revs say 4000rpm in neutral if you floor it it will cough from too much fuel.
and then you get fire balls LOL i htink that we should cut a hole in the bonet and insted of a scoop it could just be an outlet for the fireaballs to appear through. LOL
I am thinking that we can get rid of the issue with the next engine.
Posted: Thu Aug 10, 2006 10:38 pm
by AndrewT
Yes it runs but not too well just yet. Dead smooth idle but dies abit when you punch the accellerator. It is the vacuum operated dizzy with a vacuum line hanging off it and nowhere to plug it in :/
Posted: Thu Aug 10, 2006 10:54 pm
by mattims
sorry jaffa im confused .. fireballs .. and you want to take them away from me.
andrewt: you'd be amazed how much difference that little hose makes. just feed it through to the cabin and suck on it when you put your foot down.