Whittle!... HELP!
injector sizing question....
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Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
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bansheeboy420
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injector sizing question....
I'm putting efi on my yamaha banshee (400cc - 2 cyl - 2stroke)... I have 38mm TB's off a gsxr 600 '02... They came with 240cc injectors which is just enough to run the motor like it is. (that would be about 90% duty cycle) BUT, I'm going to be putting about 30lbs of boost into it after I get it running right. My question is... If i go to 72lb injectors for the turbo app. will I have issues with idle or anything else...? Simply because they are so big. Or should I use the 240cc as mains and piggy back with another set (around 50lb) into the bottom case to cover the turbo?
Whittle!... HELP!
Whittle!... HELP!
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bansheeboy420
- MegaSquirt Newbie
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ok I've been reading some other treads... If I set up 2 injector banks... using the 240cc injectors up to an 80% duty cycle, can I then setup the larger injectors to start firing when boost is appied? Can msII apply more fuel according to boost? Since I'm using a maf instead of a map, will I have to set it up according to airflow... ok my ears are starting to smoke.
Someone please tell me how I can set up 2 sets of injectors with my odd application. (2-stroke turbo)
I read in mega manual that you have to fire the secondaries all the time... be it for a very short time... but they have to fire. Is this right? if so then I'd have to set them to a very small shot until called on for volumes of fuel when needed (boost).
I'm not quite an expert but I'm trying!
Someone please tell me how I can set up 2 sets of injectors with my odd application. (2-stroke turbo)
I read in mega manual that you have to fire the secondaries all the time... be it for a very short time... but they have to fire. Is this right? if so then I'd have to set them to a very small shot until called on for volumes of fuel when needed (boost).
I'm not quite an expert but I'm trying!
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Bernard Fife
- Super Squirter
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- Joined: Mon Feb 16, 2004 3:15 pm
bansheeboy420,
In later versions of the code (2.8+), Al has made a VE table entry of 0 have a zero pulse width (and no opening time). So that will work for you. This code has not been released yet, but it won't be too log, I suspect (days or weeks, not months).
The 2.8+ code also adds MAF capability. See: http://www.megamanual.com/ms2/revisions.htm
MS-II generally has less problem with large injectors than MS-I, because it's pulse width resolution is 100 times greater.
Lance.
In later versions of the code (2.8+), Al has made a VE table entry of 0 have a zero pulse width (and no opening time). So that will work for you. This code has not been released yet, but it won't be too log, I suspect (days or weeks, not months).
The 2.8+ code also adds MAF capability. See: http://www.megamanual.com/ms2/revisions.htm
MS-II generally has less problem with large injectors than MS-I, because it's pulse width resolution is 100 times greater.
Lance.
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bansheeboy420
- MegaSquirt Newbie
- Posts: 12
- Joined: Thu Jun 08, 2006 12:50 am
- Location: ROC city New York
- Contact:
