proz07

iTrader: (6)

ok iv been following the whole AI extraviganza and LOVE the posibilities with pump gas running meth. now my questions.\

Why still run the FJO? being a couple have swapped to a "regulated" system to give them consistant nozzle pressure when under boost with the addition of a regulator.

why not swap to a additional injector driver setup? such as SDS EIC, or split second AIC. other than those two having a max MAP press of 20-25.5psi being the FJO can run 48 i believe. other than already having the FJO i mean?

it just seems going to an "injector" based system would give you more accurate control than the "solenoid/nozzle" system. I ask because i would like to eventually run the meth on my fd but im just looking at different ways i guess.

also the whole line pressure sensor thing only tells you when your pump died correct? then lowers boost pressure. what about clogged nozzles?

maybe i need to search more

z

Howard Coleman

iTrader: (6)

"Why still run the FJO? being a couple have swapped to a "regulated" system to give them consistant nozzle pressure when under boost with the addition of a regulator."

i run the FJO because they worked for over a year to get the right atomisation from their injectors and they offer a close to bolt in package that is specifically designed to do the job. i like the fact that their AFR module interfaces w the AI on a lean cut safeguard basis. i run a regulator and return line.

that said, their are other alternatives w AIC and having Haltec run the injectors etc. i don't run Haltec so i know nothing about that option other than some people are using it... though i think someone had a problem w a burned out injector? no thanks.

just to be clear there are probably other options available and i am all for running whatever you wish. eventually you have to settle on an option and i picked FJO. no problems whatsoever with the current setup.


"why not swap to a additional injector driver setup?"

what injector will you use? as i said, FJO spent a year getting their injector right for AI.

"split second AIC"

don't know what you mean. the FJO is solid state so it runs at a similar speed.

"FJO can run 48 psi." advantage FJO.

"it just seems going to an "injector" based system would give you more accurate control than the "solenoid/nozzle" system."

solenoid does not belong anywhere near a nozzle. solenoid is an injector.


"the whole line pressure sensor thing only tells you when your pump died correct?"

not correct.

the sensor gives you real time pressure readings and therefore allows you to set the rail pressure to whatever you wish. it also functions as part of a safeguard setup.

"what about clogged nozzles?"

with filters at the pump, a high tech filter after the regulator it is highly unlikey you would have a plugged line. also, you are going to be very careful when filling the system, right?

proz07

iTrader: (6)

thanks for the reply HC... and yes i see your point "FJO" has spent the time to get an almost plug and play but everyone wants to make it thier own I.E. modifications to the system.

BUT on the flip side of the coin havent drag racers been using Methanol for much longer making lots of meth compatible injectors,regulators,pumps the same as running an additional fuel system. even you have upgraded with the meth safe regulator.

these AI systems have come a long way since thier reintroduction to the internal combustion engine no doubt (been around since what WWII) and i only hope to stand on the shoulders of those before me to take the next step eventually...

im just doing my research before i decide on "my system".

the "split second AIC" is just another brand of extra injector controller.

hhhmmmm maybe i should look up the haltech controlled setup... but a burned injector could happen to anyone even yours. oh wait i remember reading in your set up your pressure sensor/backup/failsafe was after the injector but before the nozzle. i see now i kept thinking what good is the "failsafe" if the injector dies its the location of it in relation to where the AI is being injected. or am i wrong on that hmm im gonna go look again.

z

well i would look but i cant... stupid gov computer

proz07

iTrader: (6)

oh ya forgot to add this one to you meth runners.

do you keep the meth in all the time when in use or empty it all the time? H.C. you said you only empty it whe the season is over?

z

SENZA PARI

We run meth and keep it in all the time. I've read, and I'm sure you have to if you're asking, that meth will turn to a coffee like sludge if you let it sit...some say overnight, others a week...we've never emptied ours and its crystal clear.

ktm240z

I am using Wolf V500 to run my setup. I was the one with a failed FJO injector driver, not injector. The injector driver did not fail because of Wolf. All Wolf does is send a PWM signal to the injector driver just like FJOs setup.

I also had the FJO pressure sensor fail. However, FJO stood behind their products and replaced the injector driver for free and I paid $40 for a new pressure sensor.

slo

iTrader: (1)

Hey howard,I bet a PFC could run a AI solenoid through a solid state relay, or through the FJO injector driver box, using the mapped PWM output originally designed for the turbo pre control or wastgate, if those maps can be altered with the datalogit.

slo

iTrader: (1)

A solid state relay at a cost of about 20 dollars can probably be used for this purpose, with likley better reliability because it has the ability to reject more heat.

Since your not using an actual fuel injector or adding low impeadance injectors where stock had high imp, I doubt there would be any purpose to a peak and hold driver box like the FJO.

Links: http://autospeed.com/cms/A_110574/article.html