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> Fuel Delievery for a 1.8L, FI w/Megasquirt or Carbs
madmax914
post Mar 24 2014, 11:56 AM
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I am weighing my fuel options on a 1.8L 2056 motor I'm building. Carbs seem to be the choice on builds like these but I was looking at staying factory FI with a Mega squirt conversion. My question is has anyone done the Mega squirt on an L-jet tronics? And second what's going to give me better throttle response?

Your opinions are greatly appreciated!

Thanks
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JamesM
post Mar 25 2014, 10:09 PM
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You could do it but the d-jet conversion to megasquirt is a little easier/better given that you can use pretty much all stock parts/sensors (and wiring if you really know what you are doing)

Fuel injectors, intake runners, plenum, throttle body, AAR, and head temp sensor are all you would really re-use from L-jet.

You can leave the air flow meter in place unused if you like in order to use the stock airbox, or ditch it to remove the obstruction and fab up your own air filter. The other thing that L-jet lacks (that d-jet has) is an intake air temp sensor, so you will need to fab up a place to install one of those as well along with all the wiring. TPS is optional but if you want one that will need to be custom as well.

2L injectors are HUGE, good for well over 200HP, so huge that on the earlier low res versions of Megasquirt it was impossible to get a decent idle with them. 1.7s would be a good fit, 1.8s might be getting to small. Best bet might be the later Vanagon injectors as I believe they were high impedance (no resistors needed),around 24lb/hr, have a barb fitting and the better connector (d-jet connectors sort of suck).

I have heard L-jet does work fine with some 2056 builds if the cam is not to crazy, so if your L-jet system is good you may just want to stay with that for cost/ease of install, though I personally always go Megasquirt.
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