Stupid questions

[costadelsol]

what are afm's and can you just put them in without doing anythings else??

are they worth it?

(can you tell that I aint really got a clue lol, if it aint about insurance then im lost!! lol)

please dont laugh lol

cheers

Lee

[Pikey]

AFMs = air flow meters

They are the little black boxes between the airbox / air filters and the turbos. They tell the car how much air is being sucked into the engine.

If you change them for different ones (ie 300ZX ones, Nismo ones etc) it will **** up the ECU map, so no you cant just change them. Unless yours are faulty and you replace them for standard ones in which case that's fine

[mattb]

AFM = AirFlow Meter

yes you can just "put them in"

in fact you must have them otherwise your engine won't work

[SteveN]

Originally Posted by mattb

in fact you must have them otherwise your engine won't work

unless you got decent managment, then they can be placed firmly in the bin

[NISFAN]

Originally Posted by SteveN

unless you got decent managment, then they can be placed firmly in the bin

Yes the AFM bin location kit is highly recommended

[Ajax]

Originally Posted by NISFAN

Yes the AFM bin location kit is highly recommended

Whilst we're on the subject of afm's, how much extra can i expect tp pay on top of the price of an Apexi PFC for the AFM bin relocation kit, D Jetro malarky?

[costadelsol]

thanks guys and again sorry for the stupid questions, whats the best options I have then, new ecu then buy a afm bin reloction kit ???
any recomendations on a ecu and where to go get one, dont want stupid power and a stupid bill, just a nice kict in the backside to hold those evo9's that are running 1.6bar from nudgin my rear bumber!!

[NISFAN]

I think general advice is to keep AFM's if engine power is below 600bhp. There are upgrades over the standard AFM's to get to 600, but these are only suitable if you have a mangement system capable of adapting to them (although you would not get 600 out of the stock ECU anyway). Putting bigger AFM's on does not increase the power at all (other than a very small air flow restriction), only allows you to go for more power as they have a higher measuring capacity. If you go much above 600bhp then your almost forced to change to a MAP (manifold air pressure) based measuring system, unless your going to dick around with 3 or more AFM's.
I am not very familiar with the Nissan AFM options, so only use the above numbers as a rough guide. I'm sure there are previous posts that tell you exactly what each type of AFM is rated at, if your interested.

[Peter]

I think the Nismo afms are rated to cope with around 680bhp or the volume of airflow to produce that sort of power anyway...

[costadelsol]

cool thanks guys