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 4559 Posts Member #: 786 Post Whore Bermingum |
5th Mar, 2007 at 10:30:20am
Hi,
Edited by Bat on 5th Mar, 2007. VEMs Authorised Installer / Re-seller. K head kits now available!
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 2514 Posts Member #: 1217 I like nice quiet girly Minis Cheltenham, Gloucestershire |
5th Mar, 2007 at 12:35:54pm
You would start with something like that sort of timing and work from there but the actual value would depend on the cam and cam timing, injector position relative to the valve (and probalby the throttle butterfly too) and maybe a few other parameters.
Edited by RogerM on 5th Mar, 2007. Every day is a school day ...........
On 27th of Sep, 2007 at 12:45pm Jimster said:
why do you you think I got a girlfriend with small hands? |
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1267 Posts Member #: 831 Post Whore Montreal, Canada |
5th Mar, 2007 at 03:09:03pm
On 5th of Mar, 2007 at 10:30am Bat said:
Hi, Take a look at the graph below, it's not mine 
If I read it right, can we use Jeans mid pulse timing code and a fixed injection timing of 20 degrees BTDC? If Jeans mid pulse code spreads the injector opening time out the middle, I think I've read that right, meaning we would keep the injector open between the blue and pink lines giving us the best possible chance to get the fuel into the engine. That's the main reason why I implemented the mid-pulse algorithm in the code: to see if fixed timing would work. But as Roger said, it would probably need to be established for each individual engine depending on the configuration (cam, intake manifold, injector position and number,...) The issue about the opening and closing time is partly taken into consideration because I take the computed time pulse minus the opening time and that is what is centered for timing purposes. When testing has started, maybe we can refine this with another constant time value. By the way, I haven't received even one request for the siamese code for bench testing. I know that some people are getting ready for testing and I'll do some more soon when I receive my scope but I can't do it all and the more testers we have the faster we can progress with this. Jean |
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Forum Mod 10980 Posts Member #: 17 ***16*** SouthPark, Colorado |
5th Mar, 2007 at 03:29:27pm
Point made Jean... I'm slacking here I admit.... On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY |
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2514 Posts Member #: 1217 I like nice quiet girly Minis Cheltenham, Gloucestershire |
5th Mar, 2007 at 07:12:10pm
Hint taken ..... Life is becoming more normal so will get back to it soon. Every day is a school day ...........
On 27th of Sep, 2007 at 12:45pm Jimster said:
why do you you think I got a girlfriend with small hands? |
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 10 Posts Member #: 1539 Member Denver, Colorado |
5th Mar, 2007 at 10:00:32pm
Jean, im still waiting for a large wad of cash to come my way to purchase a ms and stim to help in the testing. hehe, once Ive got my ms and the stim I can help the bench test. The one thing I do have is an ancient oscilloscope, go figure. "sorry, Jedi mind tricks don't work on retards" Mediocre Films 2008 |
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4559 Posts Member #: 786 Post Whore Bermingum |
5th Mar, 2007 at 11:04:49pm
Hi,
VEMs Authorised Installer / Re-seller. K head kits now available!
|
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2514 Posts Member #: 1217 I like nice quiet girly Minis Cheltenham, Gloucestershire |
5th Mar, 2007 at 11:29:01pm
How long is a day for him? If he's willing to run it for 24 hrs for £250 we can make some serious progress. If it's 8hrs then I can probably get us RR time for less than that ... Every day is a school day ...........
On 27th of Sep, 2007 at 12:45pm Jimster said:
why do you you think I got a girlfriend with small hands? |
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4559 Posts Member #: 786 Post Whore Bermingum |
13th Mar, 2007 at 10:47:06pm
Hi,
VEMs Authorised Installer / Re-seller. K head kits now available!
|
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2514 Posts Member #: 1217 I like nice quiet girly Minis Cheltenham, Gloucestershire |
14th Mar, 2007 at 12:03:16am
Do that mate, an engine dyno is THE place to do this sort of work.
Every day is a school day ...........
On 27th of Sep, 2007 at 12:45pm Jimster said:
why do you you think I got a girlfriend with small hands? |
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4559 Posts Member #: 786 Post Whore Bermingum |
14th Mar, 2007 at 05:29:28pm
Hi,
VEMs Authorised Installer / Re-seller. K head kits now available!
|
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