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 Post subject: BBM Conversion
Posted: Wed Dec 07, 2005 10:11 pm 
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Hey Guys
Just a quick quesiton. Been searching for a doco on a bbm conversion for my ed fairmont but no such luck :( can anyone lend a helping hand? and what are the advantages etc?

Cheers!!! :wink:

 

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Posted: Thu Dec 08, 2005 4:41 pm 
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advantages: it looks better, It is supposed to give you more low down torque.

Easyies way to do this conversion is to find an ef/el motor that is complete with all the BBM brackets, throttle body, accelerater cable brackets, possibly fuel rail, distributor, etc, and do a straight swap. REMEMBER that you will than need an sftermarket ecu to run it all.

If you just change the manifold and accociated pieces onto an EB/ED engine it can be run of an EL ECU, however there is some wireing that will need to be done.

 

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Posted: Thu Dec 08, 2005 5:42 pm 
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ill give ya a tip if ya going to put a bbm and el ecu put an el cam it just a tip

 

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Posted: Thu Dec 08, 2005 6:06 pm 
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No point getting a full ef/el motor unless your motor is stuffedm the bbm will bolt straight up, and you dont need a after market ecu either, if your car has smartlock you can just run the el ecu if not you can use aa jaycar rpm switch to control the runers.

 

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Posted: Thu Dec 08, 2005 6:08 pm 
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But doesnt the fuel map change when the runners swap? Or iginition timing or something?

 

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 Post subject: ????
Posted: Thu Dec 08, 2005 6:52 pm 
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You are quite right ANDREW# both change to accomadate the BBM requirements.

 

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Posted: Fri Dec 09, 2005 7:55 am 
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RPM switch is a dodgy way of doing it.
Best way is, as already said, an EL ECU.

 

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Posted: Fri Dec 09, 2005 1:53 pm 
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I've done this conversion many times.

You don't need a EF/EL cam
You Don't need a EF/EL Dizzy

As above, You do need the BBM/fuel rail/accel cable, intake piping, vacum lines, BBM switch

The best way to do it is run a EL ecu, But as above, you don't have to with a RPM switch .
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Posted: Fri Dec 09, 2005 1:57 pm 
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But what sort of gains are there to be had with EB ECU and an rpm switch? Is it worth it? Lot of messing around for not a real lot in my eyes?

 

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Posted: Fri Dec 09, 2005 1:58 pm 
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Andrew J wrote:
But what sort of gains are there to be had with EB ECU and an rpm switch? Is it worth it? Lot of messing around for not a real lot in my eyes?


You will have the BBM runners, and they still switch . !

From long to short
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 Post subject: ?
Posted: Fri Dec 09, 2005 2:58 pm 
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FORD saw the need to change timing and fuel maps, It stops little things like pinging and engine damage under certain conditions. ie heavy right foot and high outside temps. They must know something otherwise why waste money and they are not known for doing that.
As you are going to spend a reasonable amount of money to do the job, why not do it properly.
You will only regret it later.

 

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Posted: Fri Dec 09, 2005 3:45 pm 
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Hence why im thinking of not doing it. Ah well, ill see what happens.

 

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Posted: Fri Dec 09, 2005 4:06 pm 
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Every single time you rev the car, the fuel maps and ECU timing changes, There is no "certain point' where the EL ecu changes the timing a heap forward when the runners change .

Just recently I've finished a BBM conversion running a EA ECU, and had no problems with pinging or running problems .


The runners change, gives better flow into the motor, but if you understand fuel/timing maps you will know what I mean . Fuel/timing makes increase all the time as your accelerting

My reasons to run a EL ecu is because its got the pinout for the solinold, (also has a higher rev limiter)

If your going to do the conversion, make sure you use your EB/ED injector loom into the BBM,
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Posted: Fri Dec 09, 2005 4:38 pm 
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Nah the timing maps were crap with EA-ED ECU with BBM.
There was a lot of very BAD pinging under about 3000rpm. EL ECU definately a million times better.

 

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Posted: Fri Dec 09, 2005 4:42 pm 
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Nah, i think its too much work. My cars presmartlock, so it would be a big job. If i was going to do it i may as well do a full interior swap and engine looms etc.

 

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