s afc question (apexi super afc)

[stephenp]

Does anyone know if this will work on a 280zx (turbo) ?
I'm looking to upgrade my injectors and am wondering what way I should go...
also on the project 280zx rebuild my 60-1 turbo (t4) wont fit due to size....
so I bought the turbonetics t3 t4 stage 5 60 trim turbo.....
turbochargers.com all the way


any way does anyboddy know about the super afc?

thanking yoiu in advance

[DeleriousZ]

"The basic function of the Super AFC II is to change the fuel mixture by intercepting the MAS signal and adjusting it. The Super AFC II can adjust the mixture at several user-selectable RPM ranges, and has high-throttle and low-throttle adjustment programs. The Super AFC II has capabilities unheard-of in anything less than a full-blown $1,000-plus engine management system! New features include, knock control, finer tuning and more tuning tools"

just a piggyback tuner, should work with any efi system

depending on what hp you're looking for you can select injectors that way... 440's should hold you up to 500hp or so... they're the easest option as there's sooo many of them out there... you can also get some new fuel rails machined for you or you can do them yourself... the best place to get stock is from www.rossmachineracing.com they're great to deal with (personal experience)

check out http://www.turbonation.com/injector.htm for injector charts compared to hp (440's are equal to 42lb's per hour)

[DeleriousZ]

oh, and if you're serious about tuning, skip the piggyback kludge method and go with an SDS system... you won't regret it

[stephenp]

sweet on the note of the s afc working.,...
I understand the whole basic function
Im just wondering about the whole flaaper box as a maf unit as apposde to the air flow vain method
Im not sure what resistance the flapper box uses...

but still should use the 5 volt method i would expect....
hopefully

And I got some 450cc injectors and already got the fuel rail...
huge fuel rail should probably havbe a seperate fuel pump just to keep pressure to that beast....
hopefully my walbro 255 lph will do thew trick....


and on the note of not regreting the sds that and a body kit(wide body) and some paint is what this winters project will be

If not i may revive the z31 50th ann. project....
just after the whole ecu fault i got discouraged... Im gonna have to get a standalone for that to gert it going........

well thanks for the guidance

[DeleriousZ]

what's this flapper box you speak of?

[k3smostwanted]

yeah wtf?

[stephenp]

The flapper box that I refer to is the air flow meter.
The style meter that the 280 utilizes is a box with a flapper in it(door), that as vacum is applied (engine sucking air through it), the flapper,or door, swings open.
When the door opens it changes resistance creating a variable air meter reading.
The door opening (and closing) is comparitive to the changing of the temp of the vane in the vain style afm.....

And so concludes the lesson of the day

well im off to the shop...
running a poer wire to the dash to supplp power for 2 16" elec. fans, fuel pump, and all the gauges boost controller and the safc...
so till next time...

[DeleriousZ]

2 16"? that's overkill...

anyway you should be able to convert to the newer style maf provided it uses the same voltage scale as the old one..

[k3smostwanted]

Originally Posted by DeleriousZ

anyway you should be able to convert to the newer style maf provided it uses the same voltage scale as the old one..

if it works the same, why would it be new? i dont follow...

[DeleriousZ]

what?? it doesn't work the same... the old ones were the flapper type, the newer ones are the vein style... the only thing that matters is the voltage scale the 2 mafs use.. if it's the same then the ecu will read it fine and the car will run fine, if they're 2 different scales the car will run rich/lean depending which way the each scale is shifted

[k3smostwanted]

Originally Posted by DeleriousZ

what?? it doesn't work the same... the old ones were the flapper type, the newer ones are the vein style... the only thing that matters is the voltage scale the 2 mafs use.. if it's the same then the ecu will read it fine and the car will run fine, if they're 2 different scales the car will run rich/lean depending which way the each scale is shifted

need to brush up on your sarcasm detection sensoring, eh?

[DeleriousZ]

you need to brush up on your sarcasm production son

[k3smostwanted]

Originally Posted by DeleriousZ

you need to brush up on your sarcasm production son

i mean...if you can't figure out a little sarcasm, how do you expect to make it in life?

i mean...ya can't skate through life without understanding basic sarcasm?

[DeleriousZ]

lol quiet drunkey

[k3smostwanted]

Originally Posted by DeleriousZ

lol quiet drunkey

yeah....pretty much. i mean...i can't argue with basic knowledge.