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| Forum name | Turbo/Nitrous Tech |
| Topic subject | SFMU tuning help |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=104749 |
104749, SFMU tuning help Posted by marcamos23, Nov-26-08 09:51 AM
hello i have a big trouble i have a 95 Rs eclipse stock head but i have a eagle H bean rod weisco 8:8 piston oversieze .30mm i have 370cc injector and i running a SFMU but for now mi trouble is i run way too rich at idle mi fuel pressur is 23psi and on mi wide band i run 10.9 on idle can someone tell me what to do to run lean and mi car puff grey a lot on idle and when i run help me please
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104750, RE: SFMU tuning help Posted by rstare, Nov-26-08 04:45 PM
Lower your fuel pressure... Back the static screw out a little.
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104751, RE: SFMU tuning help Posted by marcamos23, Nov-26-08 07:41 PM
mi bolt for the static is up i think i have a vac trouble:( because i can drop mi pression less than 23psi
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104752, RE: SFMU tuning help Posted by SilvrEclips, Nov-26-08 10:15 PM
I use to run the SFMU on 310cc injectors with the idle pressure around 25psi. When I changed to 440s I lowered the idle to around 20psi and the car ran fine. The ECU is going to pull some fuel until it maxes out.
How does the car run? Is the wideband calibrated correctly?
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104753, RE: SFMU tuning help Posted by rstare, Nov-27-08 08:35 PM
Originally posted by marcamos23 mi bolt for the static is up i think i have a vac trouble:( because i can drop mi pression less than 23psi
What size line are you using for the return? If it is too small it won't allow you to drop the pressure below a certian point. However I would think that 23psi would be low enough for 370cc injectors.
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