FMU or other option?

[Riceboy]

Hey i was wondering is there any other option other then an FMU or can i use a SAFC? or nething else? also i am running a 20g off of 4psi. if that helps?
Thnx
Terry

 

[selmerguy]

you can do other things. is your fuel pump upgraded? there is a guy here with a walbro 255, 550 injectors and a safc II. he runs a little rich but it works. you can to a afpr setup as well. or a sfmu. there are many options. i have a fmu right now and it works fine. i just got a used sfmu of ebay and am waiting to get a wideband before i install that bad boy.

 

[Riceboy]

you can do other things. is your fuel pump upgraded? there is a guy here with a walbro 255, 550 injectors and a safc II. he runs a little rich but it works. you can to a afpr setup as well. or a sfmu. there are many options. i have a fmu right now and it works fine. i just got a used sfmu of ebay and am waiting to get a wideband before i install that bad boy.

ok so can i just install the fmu and it will b fine? or do i have 2 tune the fmu and with the wideband how do u tune a wideband such as aem?
Terry

 

[selmerguy]

the fmu is good up to 9 psi. you don't tune a wideband you tune with a wideband. it is a accurate air fuel gauge.

 

[Riceboy]

the fmu is good up to 9 psi. you don't tune a wideband you tune with a wideband. it is a accurate air fuel gauge.

What do i tune the wideband with is what i ment
Thnx
Terry

 

[selmerguy]

you use it to tune adjustable fuel stuff. like a sfmu or a afpr. you use it to tune when ever you adjust stuff. fuel, cams ect...

 

[greenmeanie99]

I'm going to here it for this but...I am using the 4g63 Fuel setup with a walbro 255lph pump

450cc's
4g Fuel rail mounted to my intake manifold
and the DSM FPR which will be fine tuned with an AFC and Wideband o2

But thats my .02

 

[selmerguy]

your using 4g63 injectors? or just some 450's that fit? thats a cool setup. kinda like a honda setup. how rich are you at idle?

 

[greenmeanie99]

I let everyone know on Friday. I beleive im the first* but I could be wrong. The mechanic that is doing it is convinced that it will be rich. He has been working on DSM's since they have been out and knows A/F like the back of his hand. He tuned 800hp supras so he knows a thing or two about turbo setups and tuning. Everyone says I need an FMU but If it doesnt work he will buy me one but I don't think it will happen. The DSM FPR is 1:1 and most FMU's are 12:1 I believe and as said in this forum FMU's are only good for 9 psi so Im boosting 10 psi anyways.

 

[selmerguy]

your not the first to use bigger injectors and a 255 fuel pump. that is an acceptable way to turbo a N/A car. Hondas do it all the time. There is a guy here using a walbro fuel pump and 550cc injectors on a dsm. He has a SAFC II and it runs ok. I think he is at 10 psi on a built bottom end. I ran him and I was faster at 8 psi and just a fmu. or i was the better driver.

 

[greenmeanie99]

I see good kill what kind of a dsm whas it (awdorfwd) and what generation?

 

[selmerguy]

its a 2g 420a. i don't know a bunch about fuel systems yet but think about it this way. your ecu is made to control 195cc(?) or close to that injectors and you are going to use 550cc. i think it will be hard to tune without a sfmu or something like that. with injectors that big i don't think you want to use a 12:1 fmu you need a better controller than that. Good luck and i hope you get it to work. tell us how it turns out.

 

[greenmeanie99]

actually im gonna go with 450cc's but I do understand your comment. Megasquirt is probably in my future.

 

[vbeclipseracer]

i have the vortec fmu on my turbonetics kit. it makes me run rich but since i ran rich it tripped my o2 sensor now i run even richer. so now i have to buy a fpr and a/f gauge. so i suggest going for manuel fpr and save the trouble and you can always adjust unlike the fmu.

 

[selmerguy]

i have the vortec fmu on my turbonetics kit. it makes me run rich but since i ran rich it tripped my o2 sensor now i run even richer. so now i have to buy a fpr and a/f gauge. so i suggest going for manuel fpr and save the trouble and you can always adjust unlike the fmu.

wow thats a old thread.

 

[Livid]

mustang injectors fit into our cars nicely. Just pick up some 440cc mustang injectors and it should carry you right where you want to be.

 

[selmerguy]

mustang injectors fit into our cars nicely. Just pick up some 440cc mustang injectors and it should carry you right where you want to be.

they work with out a resistor pack or anything?

 

[XMasta19]

bringing back threads from the dead


how bout just getting some accel's from exile racing...i'll wager they'll fit

http://catalog.exileracing.com/index.php?cPath=215_248_224&osCsid=791187754ea35921fd8ba5b57801a27d

 

[Livid]

yes, the mustangs dont need a resistor pack

 

[selmerguy]

bringing back threads from the dead


how bout just getting some accel's from exile racing...i'll wager they'll fit

http://catalog.exileracing.com/index.php?cPath=215_248_224&osCsid=791187754ea35921fd8ba5b57801a27d

those are good prices. but you can get 8 42lb mustang injectors for the price of 2 of those accel if you look hard enough.