will I need a better fuel pump?
#21
Boost Czar
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I'd highly consider skipping the EMB or EMU and going straight for the MEGAsquirt. All things considered it may run you a few more pennies, but the overall adjustability will increase 10 fold.
then you can skip the FMU and fuel pump all together, and have a fully stand alone ECU for close to the same cost.
but yeah, for 190-210rwhp or so, 305cc injectors with 90-110psi or so will work. This will require the 190HP fuel pump, NEVER use a 255.
If the non-HP model is used, you wont get more than 85psi out of the pump, which isn't really more than stock ,but will just maybe be enough for 190rwhp.
then you can skip the FMU and fuel pump all together, and have a fully stand alone ECU for close to the same cost.
but yeah, for 190-210rwhp or so, 305cc injectors with 90-110psi or so will work. This will require the 190HP fuel pump, NEVER use a 255.
If the non-HP model is used, you wont get more than 85psi out of the pump, which isn't really more than stock ,but will just maybe be enough for 190rwhp.
#22
which megasqirt are you suggesting? I've had my eyes on 305's and a fpr with the emanage blue, but if the megasquirt keeps me from having to keep upgrading piggybacks then it sounds good but what makes it so much better than emu or emb? more points to adjust the introduction of fuel or does it also tackle retarding the timing if need be?
#25
Boost Czar
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you'd just want a MSI v3...assembled it's around $300, then add $65 for a harness, and about $100 for a boomslang, and another $30 for a intake sensor kit, then about $10-20 for random stuffs.
mod the board, wire the harness to the boomslang, and wire up the intake sensor, run a vacuum line, remove AFM, wire fuel pump ground and that's about it.
mod the board, wire the harness to the boomslang, and wire up the intake sensor, run a vacuum line, remove AFM, wire fuel pump ground and that's about it.
#28
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they flow so much they overload the stock FPR's preload and deliver more bacse pressure than is needed.
do you really need a pump that delivers 600BHP worth of fuel at idle? Just because the pump flows more, doesn't mean you magically have more fule in the cumbustion chamber....the injectors are what supplies the engine with fuel.
car, for the time being yeah, a quick test of the pump will see what it can deliver. keeping the 12:1 will basically max it out, so then it's just finding the correct injector for the job at that point. if you are going to be making less than 170rwhp, then you'd be ok with 1.8L injectors.
however, the price of the recalibration set isn't that much, and neither is a fuel pump....it just depends really, do the math, and determine the fuel you need, if you need more than the stock pump can deliver, get a new pump. if the 12:1 will overshoot that pressure, than get the smaller disc set and get it close.
do you really need a pump that delivers 600BHP worth of fuel at idle? Just because the pump flows more, doesn't mean you magically have more fule in the cumbustion chamber....the injectors are what supplies the engine with fuel.
car, for the time being yeah, a quick test of the pump will see what it can deliver. keeping the 12:1 will basically max it out, so then it's just finding the correct injector for the job at that point. if you are going to be making less than 170rwhp, then you'd be ok with 1.8L injectors.
however, the price of the recalibration set isn't that much, and neither is a fuel pump....it just depends really, do the math, and determine the fuel you need, if you need more than the stock pump can deliver, get a new pump. if the 12:1 will overshoot that pressure, than get the smaller disc set and get it close.
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