EFI conversion?

[kml.krk]

this is very interesting blog you put there. great work. I did not have time to read the whole thing but I definitely will!

good luck with the project!

[crazyfrog]

this is very interesting blog you put there. great work. I did not have time to read the whole thing but I definitely will!

good luck with the project!

Thanks.

[crazyfrog]

Updates: http://suzukigs500efi.blogspot.com/

[MXFun86]

Hello. About suzuki GS500 EFI  you can visit my blog www.suzukiGS500efi.blogspot.com. The work it is in progress.

this is exactly like what I did. make sure you sample the MAP sensor synchronously with the spark. best bet is to use the MAP sensor on the #2 cylinder, sampled at the #1 spark. this will result in two readings for every otto cycle, discard the highest (because its not during the intake stroke) and you have an excellent MAP reading.
it took delco (or whoever, buti think it was delco) 2 years to get MAP injection on harleys because they couldnt solve the intake manifold pressure ripple problem.. i solved it independantly in 1 day, of which several hours was spent pissing and moaning about using a conditional branch statement in an interrupt... eventually i sucked up the 7 microsecond loss and it ran farkin awesome.

thread related: yeah, i injected my bike, but the generator couldnt support the fuel pump (honda civic pump), so i pulled it off. I grafted two dodge turbo minivan injectors onto the head, used the carbs as throttle bodies, a nissan FPR, honda civic pump, and homebrewed the controller out of an HCS12 and some driver electronics. it worked well, but required a car battery or a 12 power supply to run on the bike because of that damn fuel pump.

i wanted to try some snowmobile throttle bodies.. theyre usually cheaper than bike parts (on ebay) and theyre almost always twins, and they're always more than enough in terms of air and fuel flow.

You were able to do all this incredibly complex work and problem solving that it took an incredible amount of time for others to figure out in a matter of hours... but you were foiled by the stock generator/magneto???

[crazyfrog]

Are you trying to say that the generator (alternator) it is not capable to support the amount of energy needed by the EFI system? If this problem rise i will solve by reducing the period of time when pump is on, or/and by reconstruct the alternator coils for more power. I think this problem can happen only on idle, so this is not so big problem.

[Nakedbusa]

Whats wrong Shane, The busa not fast enough anymore!

[deniskin]

https://speeduino.com/forum/viewtopic.php?f=19&t=1634

Seems like easy way to EFI convertion. Much more easy tune engine using close loop from wide-band lambda
No any reason to convertion, only self education and experience