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Top 2GNT Technical Turbo/Nitrous Tech topic #98299
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Subject: "FMU and 30lbs" Previous topic | Next topic
97EagleTalon2nrNov-22-06 08:55 AM
Member since Oct 16th 2004
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#98299, "FMU and 30lbs"




          

What disk would i need for my FMU to run 310cc/30LB injectors on 8psi?Ill eventually do the SFMU but this is temporary,also ive got yellowtop ford injectors from a 92 i beleive F-250>Will these work? I searched and only found greentops,What do the yellow tops flow?

Thanks Brian

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Replies to this topic
RE: FMU and 30lbs, 97EagleTalon2nr, Nov-22-06 01:23 PM, #1
RE: FMU and 30lbs, dsmracr420a, Nov-22-06 03:26 PM, #2
RE: FMU and 30lbs, 97EagleTalon2nr, Nov-22-06 04:25 PM, #3
      RE: FMU and 30lbs, dsmracr420a, Nov-22-06 04:32 PM, #4
           RE: FMU and 30lbs, 97EagleTalon2nr, Nov-22-06 04:43 PM, #5
           RE: FMU and 30lbs, dsmracr420a, Nov-22-06 04:52 PM, #6
                RE: FMU and 30lbs, dsmracr420a, Nov-22-06 05:07 PM, #7
                     RE: FMU and 30lbs, 97EagleTalon2nr, Nov-23-06 08:31 AM, #8
           RE: FMU and 30lbs, TeamDeanoD, Nov-23-06 01:30 PM, #9
                RE: FMU and 30lbs, boosted60trimrst, Nov-23-06 02:12 PM, #10
                RE: FMU and 30lbs, dsmracr420a, Nov-23-06 03:01 PM, #11
                     RE: FMU and 30lbs, 97EagleTalon2nr, Nov-23-06 05:26 PM, #12
                          RE: FMU and 30lbs, TeamDeanoD, Nov-24-06 06:56 PM, #13
                               RE: FMU and 30lbs, 97EagleTalon2nr, Nov-25-06 07:11 AM, #14
                                    RE: FMU and 30lbs, 97esiboosted, Nov-29-06 04:34 PM, #15

97EagleTalon2nrNov-22-06 01:23 PM
Member since Oct 16th 2004
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#98303, "RE: FMU and 30lbs"
In response to Reply # 0



          

Anyone?I have another question,would a WB02 be needed for a non adjustable fmu?I dont know which route to go S-FMU or FMU. I'm going to be staying at 7-8 psi for a while with stock injectors or 30lbs someone please help im confused.

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dsmracr420aNov-22-06 03:26 PM
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#98304, "RE: FMU and 30lbs"
In response to Reply # 0
 Nov-22-06 03:29 PM by dsmracr420a



          

Read..
http://www.2gnt.com/index.php?d=Step%20by%20Step%20Example%20of%20Building%20a%20Fuel%20System

Project 2.4/Big ass turbo now underway....

  
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97EagleTalon2nrNov-22-06 04:25 PM
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#98305, "RE: FMU and 30lbs"
In response to Reply # 2



          

thanks but that still doesnt answer my question im wanting to run 30lb injectors off of a fmu for ease of installation /no tuning but i dont know what disk i need im assuming a 10:1 because they arent much bigger than the stockers 235cc vs. 310cc if this is even possible,thanks

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dsmracr420aNov-22-06 04:32 PM
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#98306, "RE: FMU and 30lbs"
In response to Reply # 3



          

You missed the point, you wont be able to idle with 30# injectors with a non ajustable fmu.

Project 2.4/Big ass turbo now underway....

  
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97EagleTalon2nrNov-22-06 04:43 PM
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#98307, "RE: FMU and 30lbs"
In response to Reply # 4



          

oh so pretty much my only way is to go with 12:1 fmu for now and upgrade to sfmu/30lb later how about 275cc injectors? im tired and i cant make sense out of most of that

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dsmracr420aNov-22-06 04:52 PM
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#98308, "RE: FMU and 30lbs"
In response to Reply # 5



          

If you're gonna use a fmu, keep the stock injectors, use a 12:1 disk and come to terms with running ONLY 6-8 PSI. You had better have a high flow fuel pump because your fuel pressure is going to be over 100PSI.

Project 2.4/Big ass turbo now underway....

  
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dsmracr420aNov-22-06 05:07 PM
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#98309, "RE: FMU and 30lbs"
In response to Reply # 6



          

Looks like yellow tops are rated at 19#, just about the same as your stockers.

Project 2.4/Big ass turbo now underway....

  
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97EagleTalon2nrNov-23-06 08:31 AM
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#98310, "RE: FMU and 30lbs"
In response to Reply # 7



          

oh well i guess ive got some good replacements if i need em :-\

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TeamDeanoDNov-23-06 01:30 PM
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#98311, "RE: FMU and 30lbs"
In response to Reply # 4

          

Originally posted by dsmracr420a
You missed the point, you wont be able to idle with 30# injectors with a non ajustable fmu.


At least do a search on the subject before posting an incorrect answer.

http://forums.2gnt.com/dcboard.php?az=show_topic&forum=8&topic_id=17761&mesg_id=17761&listing_type=search

We started doing this a long time ago. I just typed in "FMU" in a search and pulled up a few years worth of good info.

I ran this setup running 10 psi daily (12 psi on C16) and got 15K miles on the stock motor before cracking a few ringlands. If I had to do it over again, I would have never turned it up past 8 psi. I remember my egt would not go above 1500F at 8psi boost on a star turbo kit with front mount. I never knew what my AF was back in the day. My plugs looked good at 7-8psi.

I also never touched the gas pedal when starting the car. In the winter, it would quit and then when I started it again, it would stay running. Once it warmed up and my ecu pulled the required fuel from the larger injectors it drove great. My fuel mileage never suffered.


97 RS(PTE SC-61, Built Long Block, Electromotive Tec 3)It's Here!

  
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boosted60trimrstNov-23-06 02:12 PM
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#98312, "RE: FMU and 30lbs"
In response to Reply # 9



          

still its not recomended running bigger injectors with a fmu .

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dsmracr420aNov-23-06 03:01 PM
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#98314, "RE: FMU and 30lbs"
In response to Reply # 9



          

Originally posted by DeanoD
At least do a search on the subject before posting an incorrect answer. http://forums.2gnt.com/dcboard.php?az=show_topic&forum=8&topic_id=17761&mesg_id=17761&listing_type=search We started doing this a long time ago. I just typed in "FMU" in a search and pulled up a few years worth of good info. I ran this setup running 10 psi daily (12 psi on C16) and got 15K miles on the stock motor before cracking a few ringlands. If I had to do it over again, I would have never turned it up past 8 psi. I remember my egt would not go above 1500F at 8psi boost on a star turbo kit with front mount. I never knew what my AF was back in the day. My plugs looked good at 7-8psi. I also never touched the gas pedal when starting the car. In the winter, it would quit and then when I started it again, it would stay running. Once it warmed up and my ecu pulled the required fuel from the larger injectors it drove great. My fuel mileage never suffered.


Sorry man, my bad. But that being said I still wouldn't do it if it were my car. You're on the very edge of what the ecu can pull.

Project 2.4/Big ass turbo now underway....

  
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97EagleTalon2nrNov-23-06 05:26 PM
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#98315, "RE: FMU and 30lbs"
In response to Reply # 11



          

Hey thanks thats the type of answer i was looking for deano an educated one.Do you think id have any issues on a hrc stage 2 on 7-8psi daily?

thanks,brian

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TeamDeanoDNov-24-06 06:56 PM
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#98331, "RE: FMU and 30lbs"
In response to Reply # 12
 Nov-24-06 07:07 PM by DeanoD

          

What turbo? (16G)

I never messed with the Vortech FMU with a 16G or 20G turbo. I have no idea what disk/ring combo would work to give you the right amount of fuel.

To do it right with a FMU, I would definitely consider a wideband, EGT, and datalogging software. We used to do quite a bit of guessing back in the day, and now we all have built motors and are still learning new lessons.

I would also not do any guessing with your 30LB injectors. Make sure they flow like they are suppose to or buy new off the shelf. Accel domestic 30LB injectors are not that expensive and work very well. I had two friends blow their engines due to wrong injectors. How much is your stock engine worth to you?...only you know the answer.


97 RS(PTE SC-61, Built Long Block, Electromotive Tec 3)It's Here!

  
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97EagleTalon2nrNov-25-06 07:11 AM
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#98334, "RE: FMU and 30lbs"
In response to Reply # 13



          

Yeah ive got a super 16g turbo ill probabally go 12:1 with stock injectors right now.Im going with an egt and when i upgrade to somthing adjustable like the sfmu, 8 injector or portfueler ill probabally be getting a WB02.

Originally posted by DeanoD
What turbo? (16G) I never messed with the Vortech FMU with a 16G or 20G turbo. I have no idea what disk/ring combo would work to give you the right amount of fuel. To do it right with a FMU, I would definitely consider a wideband, EGT, and datalogging software. We used to do quite a bit of guessing back in the day, and now we all have built motors and are still learning new lessons. I would also not do any guessing with your 30LB injectors. Make sure they flow like they are suppose to or buy new off the shelf. Accel domestic 30LB injectors are not that expensive and work very well. I had two friends blow their engines due to wrong injectors. How much is your stock engine worth to you?...only you know the answer.


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97esiboostedNov-29-06 04:34 PM
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#98374, "RE: FMU and 30lbs"
In response to Reply # 14

          

i'm running 310 cc injectors with FMU 6:1 disk at 13-14 lb of boost. Runs Great!!

]
http://www.dsmregistry.com/detail.php?carid=1326

  
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