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owenexile
Joined: 05 Jun 2009
Posts: 333
Location: Australia , Bunbury
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 Posted: Sun Apr 17, 2011 6:47 pm Post subject: Want to go EFI |
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Hi . I decided i want to convert to EFI soon , what will i need? Since im in Australia , Could i use a ford / holden EFI ? Would just be easier to source from a wrecker?
Thanks
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924 1982 N/A
For some reason theres always a earth problem somewhere with this car... |
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Scorpio
Joined: 05 Jul 2007
Posts: 1957
Location: Brisbane, Australia
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| Posted: Sun Apr 17, 2011 7:58 pm Post subject: Re: Want to go EFI |
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| owenexile wrote: | Hi . I decided i want to convert to EFI soon , what will i need? Since im in Australia , Could i use a ford / holden EFI ? Would just be easier to source from a wrecker?
Thanks |
it doesn't quite work that way . You need an efi ecu that you can program to suit the fuel ( and possibly spark) requirements of the the 924 .
MeGasquirt ecu, 4 injector inserts, crank sensor, 4 efi injectors, wiring harness, fuel rail.. Fuel pressure regulator ...fuel lines...etc that's just for fueling
_________________
1979 NA
MS1..EFI..
GARRETT T25 TURBO
BILSTEIN SHOCKS
GT BASED CUSTOM BODYKIT
Brisbane , Australia
Think mean think fast
all youll see is
my Porsches Arse!!! |
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the_mad_electrician
Joined: 16 Nov 2009
Posts: 1073
Location: Central Georgia
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| Posted: Sun Apr 17, 2011 9:32 pm Post subject: |
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I've seen people use ford fuel injector on big block mopars so I don't see any reason why it would not work on a 924. I'm sure its doable
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81 924 N/A
2004 Ranger "Edge"
2005 Mazda 6 |
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Scorpio
Joined: 05 Jul 2007
Posts: 1957
Location: Brisbane, Australia
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| Posted: Mon Apr 18, 2011 8:32 am Post subject: |
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| the_mad_electrician wrote: | | I've seen people use ford fuel injector on big block mopars so I don't see any reason why it would not work on a 924. I'm sure its doable |
Eletronic fuel injection (EFI) is different to "Fuel injectors" or "Fuel rail" ...
EFi= The whole system
Fuel Injector= output controlled by the system
You need an "ECU" to control your fuel injectors ... You also need to have some way of adjusting/changing/programming your ECU to suit your engine... A Ford/holden engine requires different fuel/spark curves then a 924 engine it also uses different electronic sensors....which if transferred may or may not have to be calibrated/fit to suit a 924 engine... Perhaps theres a user available program or way that can be used to program a holden/ford ecu but ide find it easier and cheaper to get a $200 megasquirt...imho
_________________
1979 NA
MS1..EFI..
GARRETT T25 TURBO
BILSTEIN SHOCKS
GT BASED CUSTOM BODYKIT
Brisbane , Australia
Think mean think fast
all youll see is
my Porsches Arse!!! |
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the_mad_electrician
Joined: 16 Nov 2009
Posts: 1073
Location: Central Georgia
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| Posted: Mon Apr 18, 2011 8:57 am Post subject: |
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| Scorpio wrote: | | the_mad_electrician wrote: | | I've seen people use ford fuel injector on big block mopars so I don't see any reason why it would not work on a 924. I'm sure its doable |
Eletronic fuel injection (EFI) is different to "Fuel injectors" or "Fuel rail" ...
EFi= The whole system
Fuel Injector= output controlled by the system |
I'm well aware that EFI means a whole system. One Mopar big block that I was refering to used the computer and ignition system from a 5.0 mustang with larger injectors. The computer was reflashed to work with the big mopar and I don't think it cost him all that much around $500 if I remember correctly. On top of that it instantly makes getting part super easy. Every car parts store on earth carries stuff for say a 2.3 Ford which would be the best prospect for such a conversion on a 924.
Edit:said big block mopar was a 496 cube wedge engine in a 69 charge that was one of hot rod magazines top 10 about 3 years ago.
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81 924 N/A
2004 Ranger "Edge"
2005 Mazda 6 |
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Scorpio
Joined: 05 Jul 2007
Posts: 1957
Location: Brisbane, Australia
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| Posted: Mon Apr 18, 2011 9:18 am Post subject: |
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| the_mad_electrician wrote: |
I'm well aware that EFI means a whole system. One Mopar big block that I was refering to used the computer and ignition system from a 5.0 mustang with larger injectors. |
Ok cool i thought you just said "Fuel injector" as opposed to EFI
| the_mad_electrician wrote: |
The computer was reflashed to work with the big mopar and I don't think it cost him all that much around $500 if I remember correctly. |
A constructed and tested megasquirt costs $250-$300 plus also gives you the option of Continual adjustment as you change other aspects /upgrades to your car.
| the_mad_electrician wrote: |
On top of that it instantly makes getting part super easy. Every car parts store on earth carries stuff for say a 2.3 Ford which would be the best prospect for such a conversion on a 924. |
The available parts argument is invalid because a system such as megasquirt can use sensors off most cars , not just Ford
If the sensor doesnt work they can be callibrated in megasquirt in minutes or bought for cheap...
Ford edis + crank sensor + trigger wheel= Off alot of wrecker fords
Iat sensor and CTS = $15 each (brand new from DIY) (or cheaper off other wrecker cars)
Why go to the hassle/cost of flashing/reprogramming a ford ecu when for less you can get a completely new and tested "USER PROGRAMMABLE" ECU
As for it being the best prospect for a 924 ide argue this strongly but cant be bothered coz im hungry and need to get some food but
Im sure Min and others would disagree also
_________________
1979 NA
MS1..EFI..
GARRETT T25 TURBO
BILSTEIN SHOCKS
GT BASED CUSTOM BODYKIT
Brisbane , Australia
Think mean think fast
all youll see is
my Porsches Arse!!! |
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the_mad_electrician
Joined: 16 Nov 2009
Posts: 1073
Location: Central Georgia
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| Posted: Mon Apr 18, 2011 9:42 am Post subject: |
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I did say injector but that's because I'm not very good at typing on my phone and didn't proff read. Mega squirt maybe the best choice but if someone is familiar with the Ford system they might want to go that route if they already know it. I was just saying it was possible.
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81 924 N/A
2004 Ranger "Edge"
2005 Mazda 6 |
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macBdog
Joined: 16 Aug 2004
Posts: 1111
Location: Brisbane, Australia
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| Posted: Mon Apr 18, 2011 11:44 am Post subject: |
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It just comes down the "reflashing" part. Can you make the adjustments you need so the Ford ECU calculates the correct fuelling for a 4cyl on MAP and TPS only? If yes then go for it!
Chances are that there will be a few cubic meters of pissing around to do to get a factory ECU doing what needs to be done to run a different motor. A programmable ECU like Megasquirt or Haltech/Microtech/Wolf/Lego Mindstorms are made to do these things out of the box.
Hell I have a Haltech E6S that you can have for cheap.
_________________
1979 931 with a 350 chev
1973 911E with EFI
| p-talk wrote: | I'm still convinced the word 'Porsche' makes people crazy in all kinds of ways  |
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owenexile
Joined: 05 Jun 2009
Posts: 333
Location: Australia , Bunbury
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| Posted: Mon Apr 18, 2011 2:52 pm Post subject: |
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So... All this is greek to me so far haha
Which way will be the easiest / better option which wont turn out too expensive?
_________________
924 1982 N/A
For some reason theres always a earth problem somewhere with this car... |
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Min
Joined: 04 Nov 2002
Posts: 2368
Location: Vernon, British Columbia, Canada
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| Posted: Mon Apr 18, 2011 3:07 pm Post subject: |
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| Scorpio wrote: | | Im sure Min and others would disagree also |
I certain do disagree also, but decided against making a post about it.
Owenexile: no matter what path you choose, expect to spend alot of time learning. While converting a car to EFI isn't very difficult, understanding how to make it run correctly can be quite time consuming.
Min
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Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting. |
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Scorpio
Joined: 05 Jul 2007
Posts: 1957
Location: Brisbane, Australia
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| Posted: Mon Apr 18, 2011 5:03 pm Post subject: |
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| owenexile wrote: | So... All this is greek to me so far haha
Which way will be the easiest / better option which wont turn out too expensive? |
you're gonna have to learn Greek then:p if it was me ( and I didn't have turbo) IDE just do fuel and no spark using megasquirt
_________________
1979 NA
MS1..EFI..
GARRETT T25 TURBO
BILSTEIN SHOCKS
GT BASED CUSTOM BODYKIT
Brisbane , Australia
Think mean think fast
all youll see is
my Porsches Arse!!! |
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Martijnus
Joined: 29 Dec 2006
Posts: 2019
Location: Netherlands
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| Posted: Mon Apr 18, 2011 6:33 pm Post subject: |
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if you want to do this, first read www.megamanual.com.
When you understand everything there, go buy stuff.
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"Rule: Turbo's make torque, and torque makes fun." (C. Bell)
924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment  |
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924 FAQ (Technical)
