| [ Total Views: 781 | Total Replies: 14 | Thread Id: 83206 ] |
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 tayloredvw
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| posted on April 19th, 2010 at 09:05 PM |
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fuel injection from rotary to piston(pictures up)
can i use a motec fuel injection system i bought on a 10a rotary and put on my vw engine?
It has crank angle ignition twin throttle bodies with two injectors in each. Its an older computer probably around 10 years old. It also has a hand
tuner that plugs into the computer.
I'll try to put pictures up but m having problems.
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tayloredvw
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| posted on April 20th, 2010 at 08:28 PM |
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so whats the trick to posting photos? i have photo bucket but can t figure out how to get them to this website.
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71-BEETLE-SEDAN
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| posted on April 20th, 2010 at 08:30 PM |
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you have to cut and paste the html link from photobucket of each photo and then it should work.
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 vw54
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| posted on April 20th, 2010 at 08:38 PM |
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ring Motec the putor may be able to re configuerd to suit a 4 cyclinder
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71-BEETLE-SEDAN
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| posted on April 20th, 2010 at 08:41 PM |
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I was just gunna say wouldnt it only fire on three clyinders cause the rotor has three sides?
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tayloredvw
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| posted on April 20th, 2010 at 09:01 PM |
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[img] [/img]
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tayloredvw
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| posted on April 20th, 2010 at 09:02 PM |
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tayloredvw
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| posted on April 20th, 2010 at 09:05 PM |
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maybe i need a better understanding of how it works but i thought the crank angle sensor made the spark plug fire, so in theory just need a new pully
made up for the crank angle sensor?
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Joel
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| posted on April 20th, 2010 at 09:05 PM |
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| Quote: | Originally
posted by 71-BEETLE-SEDAN
I was just gunna say wouldnt it only fire on three clyinders cause the rotor has three sides?
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some rotas have a pretty whacky ignition setup
the one in my bug only had one dissy and coil but i think it was 12As that have 2 distributors and 2 coils so whether that could be adapted to a 4cyl
piston engine i'd love to know too
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Flintstones
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| posted on April 20th, 2010 at 09:48 PM |
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Mazda made the 12a in both single and twin dizzy.
10a's and 13b's had the single dizzy.
Rotaries only fire on one side of the rotor at a time. If the ignition fired on all three sides then it wouldn't rotate.
Interesting throttle bodies, what are they from?
Cheers
D
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Craig Torrens
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| posted on April 20th, 2010 at 10:07 PM |
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Use manifolds from Kadron Carbies.....they should be very close to the throttle bodies.
Let me know, i can get you some and make up adaptor plates if needed. 
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colonel mustard
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| posted on April 20th, 2010 at 10:34 PM |
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| Quote: | Originally
posted by 71-BEETLE-SEDAN
I was just gunna say wouldnt it only fire on three clyinders cause the rotor has three sides?
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that's not how it works Josh. There are 2 rotors with 2 spark plugs, a leading and trailing... That's on one side of the engine. On the other see is
the intake and exhaust. Rotors usually only have 1 idf/Ida or throttle body.
Technically it is still a four cylinder as all the plugs fire in a set order, and none at the same time.
Twin dizzy - I no longer recall how these work.
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tayloredvw
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| posted on April 20th, 2010 at 10:42 PM |
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thanks craig but don t have any motor to put it on just yet. Want to figure out if i can use it first and if it will cost me an arm and a leg.
Might be better off getting rid of the whole lot and using the money on a new injection system.
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gazman
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| posted on April 22nd, 2010 at 11:46 AM |
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I've used an old microtec off a 13b to run a Mitsubishi sirius dash turbo motor before. It worked fine, as has been said the signal from the crank
angle sensor tells the ecu when to fire so you should be able to get it to work. Will need to be adjusted/remapped to suit the new motor too
obviously.
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psimitar
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| posted on April 22nd, 2010 at 02:07 PM |
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Yea with a remap it'll work fine. The injector pulses will need remapping too to make you don't over fuel.
Shame there's not 4 throttle bodies so you get one injector per cylinder but the fuel atomization should be better than a carb.
madness is in the eye of the beholder  |
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