Cartech FMU question
 

My cartech fmu is adjustable on its ratio but it does not mention in the instructinos how sensitive the adjustment is. Such as 1 turn of the knob = + or - 1 part fuel:air.

I'm just looking for a general idea of how much a turn should affect it.

Re:Cartech FMU question
 

look at your fuel pressure gauge as you boost ;D

Re:Cartech FMU question
 

That would work if I had a fuel pressure gauge...damn those things are expensive. $195 from summit :(

Re:Cartech FMU question
 

well youre gonna need one with an adjustable fmu...get the mechanical one and tape it to your windshield for tuning or something

Re:Cartech FMU question
 

Ghetto thats too ghetto ;)

Can you mount a mechanical gauge inside the car if you use high pressure fuel line? It says not to from autometer and personally I dont like the idea of fuel in the cockpit either.

Anyways autometer says you can use it with their "isolator" ATM-5280 but its discontinued apparantly.

I suppose if I absolutley have to I'll get it...not looking forward to spending that kinda money though.

Re:Cartech FMU question
 

its just to set you up initially...anyway i wouldnt out it inside, although a friend of mine did with no problems yet

Re:Cartech FMU question
 

Well how about this...

http://cgi.ebay.com/ebaymotors/ws/eB...category=46100

Its cheaper and they have excellent feedback on all of their products. Matches my dash lights being red...Besides I'd like to have one anyways to see if I have any pressure drop... lean engine go boom boom ;)

Re:Cartech FMU question
 

check out the digital gauges by vdo@ summitracing...i think they are fairly cheap too...what do you mean pressure drop

Re:Cartech FMU question
 

I'm also interested in knowing if these are any good.

Stan

Re:Cartech FMU question
 

I'll take a look at those gauges in a bit...

I mean if my fuel pump is being overworked or just decides to take a poop I'd like to know. I need to upgrade my intake pump.