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Home > Show Us Yours! > Josh's turbo 1098cc carburetion sucks lets try EFI | |||||||
1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
2nd Dec, 2017 at 03:17:53am
so TS whont connect think its a usb problem with the computer
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
2nd Dec, 2017 at 07:25:52am
little progress used a different computer to get it going and its running but crap as to be expected with no real tune and not at all setup for the 5 port |
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
3rd Dec, 2017 at 02:54:39am
a little improvement
Edited by Turbo This.. on 3rd Dec, 2017. |
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8604 Posts Member #: 573 Formerly Axel Podland |
3rd Dec, 2017 at 11:51:55am
Good work. What injection timing are you running? I usually find 460-470 degrees works well at idle with the single pulse method.
Edited by Paul S on 3rd Dec, 2017. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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971 Posts Member #: 3228 Post Whore North of the Netherlands |
3rd Dec, 2017 at 03:45:28pm
I really like your persistance, engineering and trying new stuff.
Dazed and Confused.... |
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
4th Dec, 2017 at 09:36:37am
paul that log was with out any timing that's with seq off and 5 in the trim table on two injectors and added or took from the ve table i found spark had quite a lot of influence
Edited by Turbo This.. on 4th Dec, 2017. |
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
5th Dec, 2017 at 09:53:02am
so it helps if i use the correct injector wires.. had H not A like a dope so its now sounding correct on the exhaust note..
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12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
5th Dec, 2017 at 11:14:12am
sounding a lot more promising then,
On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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8604 Posts Member #: 573 Formerly Axel Podland |
5th Dec, 2017 at 03:41:28pm
Sounds like you need to gain an understanding of the issues of port injection on a 5-porter.
Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
6th Dec, 2017 at 10:16:00am
ok ill get the spark back looking like a real table and ill grab a spare plug and test each output in the test window to insure the ecu is firing the cyl it thinks it is
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8604 Posts Member #: 573 Formerly Axel Podland |
6th Dec, 2017 at 05:04:11pm
Right a lot of questions, I'll try and answer them.
On 6th Dec, 2017 Turbo This.. said:
ok ill get the spark back looking like a real table and ill grab a spare plug and test each output in the test window to insure the ecu is firing the cyl it thinks it is i had bumped the ve table around a lot from about 25 to like 200 most of the time it didn't make a lot of difference as long as it didn't stall just pig rich or dead lean but not the same on both O2s i have the throttle open a fair amount quite a lot more than it ever will be when all sorted but this is just so im not hitting the starter every 5 seconds Sounds like you are getting much too much fuel in there. On 6th Dec, 2017 Turbo This.. said:
the IAC stepper is un plugged and the valve is normally closed Check that it is not set in the open position. Tape or plug the port. On 6th Dec, 2017 Turbo This.. said:
my limited under standing is that i can use one injector per runner and fire it once with its window of time or spread of fuel spray start as the first valve in the runner is closing and finish as the second is opening swinging the balanced by the injector timing table over the two ports? adding or taking fuel from one to the other by adding or taking timing Correct if you use sequential, single pulse. But you have not set it up that way. Your setup is pulse per cylinder. On 6th Dec, 2017 Turbo This.. said:
what i not sure on is how the time is shown in the ecu and how it relates to the cam card from kent and if at idle the injector has time to do two separate pulses only when the respective valve is off the seat? is the timing table 0 as in TDC firing and with intake timing of 12/56 248 dur is that 124 in the table going to put the middle of squirt into the open valve? assuming the event is set at mid not start or end Injector timing is the same reference as ignition. So 0 degrees is top of compression stroke. Don't worry about cam timing. If you time the injection for the middle of the pulse to occur mid stroke that it should be about right. You do need to allow for transit time in the port of around 100 degrees. So 360 degrees to TDC begining of intake stroke, minus 90 to get mid stroke, then plus 100 for transit time, so 370 should be a good starting point. On 6th Dec, 2017 Turbo This.. said:
i have injector wires A and D joined and go to 1 and 2 cyl runner B and C joined and go to 3 and 4 cyl runner Correct for the method you are using. On 6th Dec, 2017 Turbo This.. said:
i think the ecu is sending the injectors to fire in the same order as the spark but at the timeing table degrese but is that the same as spark baised on TDC for cyl 1? so mid valve open time would be 124 in the table take a bit to allow air speed and injector open time? so say that 100 or 110 is window for start of spray? but then how dose this apply to the others 2 3 and 4 cyls with one getting the air speed going the other getting the higher VE anc cyl filling needing more fuel can each cyl be trimmed timeing wise or is that in the indival cyl trims? ie just add say 10 in 4 and 1 to get it back richer Just try and get a steady idle without any cylinder trim for now. If you get cylinder 1 right, then the others will follow as long as the wiring is all correct, which it seems to be. On 6th Dec, 2017 Turbo This.. said:
at the time of the above two logs i had 180 deg set for timeing but at the time i didnt know i was useing injector wire H not A haha oops the wire labels have faded a lot and hard to read is there timing tables for each cyl? and is the table in crank deg or cam? All timings are in crank degrees. A single table for primary injectors/cylinders. On 6th Dec, 2017 Turbo This.. said:
injectors ar 950cc each one per runner and i have a base fuel press at 40psi as low as my reg and pump will go it is how ever an adjustible rate reg not fixed at 1:1 its base is 1:1 but it can add say 3psi fp for 1psi boost to make the injector flow like a bigger one but idle like a small one i think this will be inportant as i want to once its all set and ive got my head straight go back in E85 on the same injectors to use the flex fuel and dual tables Best not use a rising rate regulator, it will just confuse matters. Don't mistake rising rate to mean vacuum/boost referenced either, the 2 things are different. On 6th Dec, 2017 Turbo This.. said:
what should i have in the general settings 2 squirts per engine cycle 4 injectors Evan tho im using 2 i need it to think theirs 4? engine size 1150cc and 950cc injector size required fuel being 2ms at 100%VE? Mine is running 840cc injectors on 1015cc engine but using single pulse mode. I can let you have a copy of my .msq but you will need to disconnect inector outputs B&D. It does work. This was mine on just the second start: https://www.youtube.com/watch?v=560T1DcVVE4 This is my fifth EFi engine so getting the hang of it Edited by Paul S on 6th Dec, 2017. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
7th Dec, 2017 at 10:00:01am
well im a dope..
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
22nd Jul, 2018 at 01:15:31am
all right im back on the mini
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
22nd Jul, 2018 at 01:20:07am
log |
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
22nd Jul, 2018 at 02:32:50am
file if it works? |
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
22nd Jul, 2018 at 02:33:16am
nope says ignoring msg file |
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
22nd Jul, 2018 at 06:52:33am
well this hunting rpm is driving me insane not sure what to look for it seems so close yet so far
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5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
22nd Jul, 2018 at 11:01:11am
The forum only allows a limited number of file types as attachments, they are listed when you click on "add attachment" and don't include the megasquirt proprietary stuff but does include "zip" files so just compress it.
Edited by Rod S on 22nd Jul, 2018. Schrödinger's cat - so which one am I ??? |
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
24th Jul, 2018 at 10:02:40am
ahh i see
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5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
24th Jul, 2018 at 10:38:28am
A zip file should work but I don't see one attached.
Schrödinger's cat - so which one am I ??? |
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
25th Jul, 2018 at 11:39:22am
i will have to try again on the zip file
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5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
25th Jul, 2018 at 02:26:27pm
For the min/max values, yes, the default setting is it looks for the highest/lowest recorded data and sets the scales to those values.
Schrödinger's cat - so which one am I ??? |
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1767 Posts Member #: 9165 Previously josh4444 Australia, brisbane |
29th Jul, 2018 at 09:07:07am
so the current setup is
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5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
29th Jul, 2018 at 11:49:08am
Thanks for the description.
Schrödinger's cat - so which one am I ??? |
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608 Posts Member #: 1106 Post Whore Hungerford, Berks |
29th Jul, 2018 at 06:32:43pm
Just picking these few bit out:
On 29th Jul, 2018 Turbo This.. said:
one 950cc injector mounted in the bottom of each runner --- fuel pressure set at 4 bar 58 psi with a boost reference line before the throttle body that is only a boost reference this reg can be set to be 1:1 --- displacement is 1150cc I guess as you are using a single pulse it might not be so much of a problem, but , what Pulse width are you seeing at tick over? I can’t really tell from those plots - for the reasons that Rod has already outlined with regard to scaling -, but it looks like once the throttle is closed it is going extremely rich? With large injectors and a high base fuel pressure could your pulse widths be so low that the injectors are falling off the edge of their absolute minimum pulse widths? So they are not actually opening every time or opening with extremely erratic pulse widths which would cause the hunting. A Simple test to wind the base fuel pressure down to 43PSI might be worth doing to see if it makes a difference. My 840cc/min injectors are right on the edge of running correctly at 1.367ms and an Average AFR of 13.4 @950 – 1020RPM. If I try to get lower than that AFR, then I experience exactly the same hunting effect. That said, your injectors might be able to cope with much lower pulse widths than these Siemens Deka type I have. Anyhow, just a thought. Edited by Graham T on 29th Jul, 2018. ’77 Clubman build thread
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Home > Show Us Yours! > Josh's turbo 1098cc carburetion sucks lets try EFI | |||||||
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