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Location:
Gold Coast
Registered:
October 2002
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ignition only computer on 18rg
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Wed, 28 July 2004 08:18
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I was just thinking too myself about running computer controled ignition with carbies as a first step to aftermarket efi with quad throttles etc. Is this a dumb idea? would it work well, is there a cheapish way to do it?
random thought for the day.
thanks
Daniel
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Location:
Brisbane
Registered:
October 2002
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Re: ignition only computer on 18rg
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Wed, 28 July 2004 08:46
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u r nuts 
i dont even know if there is a way to do it, maybe a full MSD setup, but thats point less
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Location:
Gold Coast
Registered:
October 2002
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Re: ignition only computer on 18rg
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Wed, 28 July 2004 08:49
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haha u replied as promised.
yer i have heard of mega spark? computer or something. i thought it would be cool to get a cas and coil packs happening
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Location:
qld
Registered:
December 2003
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Re: ignition only computer on 18rg
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Wed, 28 July 2004 10:11
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there is an aussie made igniton only computer on the market. wiat, ill go get the link off my dead computer.>>>>>>>>>>& gt;>>>>>>>>>>>> ;>>>>>>>>>>>> http://www.delta-digital.com.au/
$300 last time i checked.
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Location:
Gold Coast
Registered:
October 2002
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Re: ignition only computer on 18rg
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Wed, 28 July 2004 10:11
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I know im just talking to myself but i was reading the mega squirt website and there is no mention of the 'mega spark' that i have heard about on the forums. It is only available on the mega squirt 2 which isnt finished yet. Also it has a vacume input for the map sensor inside but say i mounted the computer inside the cabin wouldnt the metres of piping make the vacume signals innacurate or doesnt the vacume decrease over long lenghts.
i also cant seem to find a price on these! maybe im not looking hard enough.
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: ignition only computer on 18rg
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Wed, 28 July 2004 10:43
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jaycar High energy ignition kit and programmable ignition kit
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Location:
Finland
Registered:
November 2002
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Location:
Brisbane
Registered:
March 2004
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Re: ignition only computer on 18rg
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Wed, 28 July 2004 12:47
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How pointless would it actually be to do something like this? Electronics is definitely way more up more alley than mechanics, and i often wonder what kind of cool stuff could be done by using various sensors around the car to change ignition timing depending on the situation. Couldn't be too hard to put some controllable vents around an intake manifold either i'd imagine, though i know noone seems to think too much of TVIS around here 
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Location:
Rocklea qld
Registered:
February 2003
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Re: ignition only computer on 18rg
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Wed, 28 July 2004 12:54
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Mega spart is just a part of megasquiurt efi. You can get it to control your fuel or fuel and spark. I dont think it will control spark only though.
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Location:
Brisbane
Registered:
February 2003
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Re: ignition only computer on 18rg
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Wed, 28 July 2004 13:45
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actually if you're keen you can setup Megasquirt to control spark only... but if you're going to build the computer, you may as well run both spark & fuel.
get membership on the MS site <www.msefi.com> and spend a few days reading up as you can do stuff like extra add functionality to control extra injectors, NoS, water injection, thermo fans, aircon control, etc
for those interested, we're setting up People100's 18RGUE to run fuel-only megasquirt until the turbo is running, then we'll convert it to fuel & spark.
... and my manifold is back from People100 for testing so the 18Rt will soon be 18Rte (fuel & spark) so brisbanites should get a glimps of DIY EFI shortly.
... oh... the issue about long vacuum lines isn't a major issue - the developers of megasquirt worked out that 6 foot of piping produced about 1 milisecond of delay between vacuum change in manifold and at th sensor ... vacuum won't be 'lost' in a long tube - but a softwalled tube will expand/contract in sympathy with MAP , so you just use thicker or nylon tubing.
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Location:
Montrose, VIC
Registered:
May 2002
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Re: ignition only computer on 18rg
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Wed, 28 July 2004 14:28
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Personally I wouldn't bother - if you're planning to install EFI, save up for a while longer, and do it all at once. With carbs, upgrading the ignition control like that isn't going to make a MASSIVE difference, probably not enough to warrant the time/expense of setting something up to throw away again later...
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Location:
Gold Coast
Registered:
October 2002
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Re: ignition only computer on 18rg
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Thu, 29 July 2004 08:14
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I spent the night reading up on the MS and the UMS and it sounds interesting. I read the thread on the megasquirt on toymods and they are only arround $200? Although i am disabled at soldering my grandfather was a RAAF mecanic and electricion on the jet planes or something so he could do it for me hmm. I was also reading on the site there are provisions for water temp sensor and air temp sensor. is the air tempriture necessary? What i read didnt spell it out but it said they only thought it would be used for boosted cars?
also if i was to run quad throttles where would i get an accurate vacume if i didnt have an airbox?
oh i noticed what you said charles about the map tubing distance 1ms delay for 30 feet of tubing, however i thought that long tubing would get kinked bending all arround.
PS i would love to see the megasquirt in action, do you have pics of the manifold people 100 didnt have a camera when i spoke to him last night.
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Location:
Gold Coast
Registered:
October 2002
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Re: ignition only computer on 18rg
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Thu, 29 July 2004 08:16
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oh im checking out the two sites the delta site is a wealth of information  
jaycar looks interesting too
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Location:
qld
Registered:
December 2003
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Re: ignition only computer on 18rg
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Thu, 29 July 2004 10:25
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if you call or email them theyre actually pretty helpfull. the software is dos based, but they were upgrading to windows, so id say thatd be done by now. the tuning is pretty coarse, and i spoke to someone who sets them up also, he said the dont usually bother with load referance. really i think its more for someone who wants to fit carbs to an efi engine, like i considered doing to the 4ag going into my sprinter. mrshin is right though, if you think youre going to have efi eventually, dont bother.
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Location:
Finland
Registered:
November 2002
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Re: ignition only computer on 18rg
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Thu, 29 July 2004 12:36
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| Quote: |
also if i was to run quad throttles where would i get an accurate vacume if i didnt have an airbox?
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I made sort of balance pipe between four runners. It has vacuum ports for map, vacuum advance in dizzy and brake booster. Idle and fast idle lines are connected to this pipe also.
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Location:
Brisbane
Registered:
February 2003
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