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DOHC into SIX-666 Project 

 

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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 7:30 am 
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EDXR6-Poly wrote:
thats what i was thinking but (i dont know if BA or BF motors had a aux drive shaft for dizzy or are they just sensor pickup of the crank) so might be a EMS setup and coil pack?


no aux shaft and no dizzy hole..
its crank sensor only..... so its factory ba or aftermarket ecu...
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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 8:51 am 
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In regards to Ba oil pick up could you use an au pickup? Just a thought.

Watching with interest
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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 8:55 am 
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Au pick up wont work as the Ba oil pump is on the front of eng.
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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 9:50 am 
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EFFalcon wrote:
screw engineering.

get it in, run it on the EMS and go from there.
i'm yet to see anyone running ITB's on a BA motor, the headflow of the DOHC motor coupled with the ITB's should make for some good results.

as nice as the factory ECU is, i don't know how tunable it'd be with the ITB's (i'm assuming you're running a TPS tune?)

lock the cams in position to start with?

I wasn't interested in playing with the standard ecu, the EMS will be the go.

Atomic do vernier cam gears so that won't be a problem, was just hoping to be able to use the vct, might have to give EMS a call today.
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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 10:02 am 
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skidder wrote:
EFFalcon wrote:
screw engineering.


If you have the money to play with your car you should have the money to make sure its legal.


i'd bet that over 50% of cars on here arn't legal.
so as good as your advice is, most people won't adhere to it :)

 

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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 10:02 am 
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TROYMAN wrote:
EDXR6-Poly wrote:
thats what i was thinking but (i dont know if BA or BF motors had a aux drive shaft for dizzy or are they just sensor pickup of the crank) so might be a EMS setup and coil pack?


no aux shaft and no dizzy hole..
its crank sensor only..... so its factory ba or aftermarket ecu...


or EF/AU ecu :P

 

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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 10:04 am 
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dsyfer wrote:
I wasn't interested in playing with the standard ecu, the EMS will be the go.

Atomic do vernier cam gears so that won't be a problem, was just hoping to be able to use the vct, might have to give EMS a call today.


hopefully as a worst case you can have a basic VCT setup, not as variable as the factory setup but better then none.

 

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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 10:10 am 
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The BA cams also move dependant on oil pressure and a whole bunch of other stuff. I'd lock them down with the atomic gears if it was me.

The EMS might be able to control 2 PWM outputs but how will it know what position the cams are in before they are moved?

The BA ecu detects their position and moves them accordingly depending on the conditions.
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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 6:13 pm 
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Dansedgli wrote:
The BA cams also move dependant on oil pressure and a whole bunch of other stuff. I'd lock them down with the atomic gears if it was me.

The EMS might be able to control 2 PWM outputs but how will it know what position the cams are in before they are moved?

The BA ecu detects their position and moves them accordingly depending on the conditions.


ah, I was hoping they could be setup linear, eg: at a certain duty cycle = x degrees, so if you knew max and min values, you could set the duty cycle to match, then the ecu wouldn't have to know where they were, as it would be telling them where to be.
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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 10:10 pm 
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dsyfer wrote:
Dansedgli wrote:
The BA cams also move dependant on oil pressure and a whole bunch of other stuff. I'd lock them down with the atomic gears if it was me.

The EMS might be able to control 2 PWM outputs but how will it know what position the cams are in before they are moved?

The BA ecu detects their position and moves them accordingly depending on the conditions.


ah, I was hoping they could be setup linear, eg: at a certain duty cycle = x degrees, so if you knew max and min values, you could set the duty cycle to match, then the ecu wouldn't have to know where they were, as it would be telling them where to be.


I just had a look at the x860 software. as far as PWM out puts you only have a choice between RPM, TPS or load activated.
The best i think you can hope for is to use the RPM activation and setting the cams to decrease the LSA (increasing overlap) as the RPM rises.

 

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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 10:17 pm 
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1 question.
What can the EMS do that flash tuning a BF ECU cant?

 

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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 10:24 pm 
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MadMatt wrote:
1 question.
What can the EMS do that flash tuning a BF ECU cant?


Don't know if a BA/BF ECU can do a TPS tune.

 

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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 10:27 pm 
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EFFalcon wrote:
MadMatt wrote:
1 question.
What can the EMS do that flash tuning a BF ECU cant?


Don't know if a BA/BF ECU can do a TPS tune.

A very valid point.

 

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 Post subject: Re: DOHC into SIX-666 Project
Posted: Tue Aug 24, 2010 11:36 pm 
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The BA throttle body does have a TPS. It uses it as a reference to confirm the position of the electronic throttle movements.

I don't know what effect there would be if you allowed for a manual adjustment of the throttle, while still sending the TPS Signal back to the PCM.

I think it would only matter if the load/map choice was tied to the throttle input. I would have thought that from a logic point of view, the movement of the electronic throttle would be decided as a RESULT of the other movement, not CAUSE the selection of the fuel/ignition maps.

I hope that makes some sense.

Cheers
BenJ

 

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 Post subject: Re: DOHC into SIX-666 Project
Posted: Wed Aug 25, 2010 11:07 am 
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Its an emissions thing. You crack the throttle, the fuel and ingnition maps change, and then finally the throttle body opens. It all happens too quick for any of us to feel the difference but generally that's the order that fly by wire throttle systems operate these days.
They've sacrificed throttle response for the sake of emissions.
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