| Author | Topic |
|---|
Location:
South Australia
Registered:
July 2002
|
|
Re: EFI Design - 4cyl GE L-Jetronic (I suck!)
|
Wed, 13 October 2004 12:21
 
|
 |
Dammit, I had a big spiel here but now it's disappeared...oh well have to write it all out again!
It's not that I'm totally against on-board MAP, it's just that I'm against MAP in general...also I have an ST162 air-flow meter + box lying around and it would save me some cash to make use of them! AFM does have it's advantages (as stated) in regards to the change in air flow of an engine as it gets older...
My thoughts on EGR -> EGR isn't just a matter of controlling the a/f ratio...it's a matter of controlling combustion chamber temperatures. Only problem is that most EGR systems are kinda screwy and require lots of crazy bits like pulse width modulation regulators and stuff...it may be a bit of a headache to do, but I'd really like to keep emissions to a legal level for most operating conditions!
If this (EGR) is not possible with these ECUs then I guess I'll have to ditch it...what other methods are available to control NO(x) emissions (ie high combustion temperatures)?
Cold start injection - how do most cars deal without it?
As for logging, I'm not overly fussed...aside from an RPM signal and preferably some kind of diagnostic port any other logging functions are a bonus.
The brake sensor, is more or less just a brake switch, to tell the ECU that the car is braking, and thus applying a correction to the fuel/timing.
Water/methanol injection isn't a priority seeing as the car is NA 
As for the whole ignition debacle. I went to the MSEFI website earlier today, there were about three options for distributorless once per rev spark systems. One was an earlier version of the GenBoard (which is how I found the GenBoard) the other made little or no sense to me but looked like just a minor revision of the software & hardware. THe third option being EDIS, which I'm still convincing myself of, does anyone have any links to further information - it's cool if you don't have one on hand I'll just go for a search 
I'm guessing I will need some kind of CAS for the ignition (forgot to write that up).
Lastly - knock sensors. I'm interested in these because I'm planning on running a fair bit of compression (in the range of 10.5 : 1) and thus knocking on 98 octane fuel may still be a slight possibility especially as the engine gets older or dirtier (clogged up with carbon and 'shit').
Bosch have knock sensors, as for what frequency the 2.2L 3S-GE would require to monitor your guess is as good as mine Experimentation would solve that, although I am also under the impression that 3S-GTEs had knock sensors (on later gens? I haven't yet checked my gen 1 ST165 3S-GTE for one but I'm sure I could find out) the later gen 3S-GE might also have a knock sensor - but even that may 'ping' at a different frequency - seeing as it has 86.0 x 86.0 dimensions and the engine i'm building has 90mm x 87mm (stroke * bore).
This is all I can think of for now
|
|
|
| | Subject | Poster | Date |
|---|
 |
EFI Design - 4cyl GE L-Jetronic (I suck!)
|
RWDboy | Wed, 13 October 2004 10:52 |
|
Re: EFI Design - 4cyl GE L-Jetronic (I suck!)
|
ViPeR_NiPPleX | Wed, 13 October 2004 10:59 |
|
Re: EFI Design - 4cyl GE L-Jetronic (I suck!)
|
thechuckster | Wed, 13 October 2004 11:09 |
|
Re: EFI Design - 4cyl GE L-Jetronic (I suck!)
|
RWDboy | Wed, 13 October 2004 12:21 |
|
Re: EFI Design - 4cyl GE L-Jetronic (I suck!)
|
oldcorollas | Wed, 13 October 2004 12:36 |
|
Re: EFI Design - 4cyl GE L-Jetronic (I suck!)
|
RWDboy | Wed, 13 October 2004 12:58 |
|
Re: EFI Design - 4cyl GE L-Jetronic (I suck!)
|
oldcorollas | Wed, 13 October 2004 13:13 |
|
Re: EFI Design - 4cyl GE L-Jetronic (I suck!)
|
RWDboy | Wed, 13 October 2004 13:05 |
|
Re: EFI Design - 4cyl GE L-Jetronic (I suck!)
|
thechuckster | Wed, 13 October 2004 13:24 |
|
Re: EFI Design - 4cyl GE L-Jetronic (I suck!)
|
RWDboy | Wed, 13 October 2004 13:25 |
|
Re: EFI Design - 4cyl GE L-Jetronic (I suck!)
|
RWDboy | Wed, 13 October 2004 13:30 |
