Need help!

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
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AlfredoS13
Posts: 161
Joined: Sat Feb 24, 2007 7:00 am
Car: 1991 240sx hatch w/ SR20DET red top

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I recently had my car dyno and the car made 282 RWHP @ 6800 rpms, couldn't rev the car pass 6800 beacuse it was too lean at that point (14.3) The guy at the dyno told me I needed new injectors cause the ones on the car (stock SR injectors) were max out. So, I went and bought 720's MSD injectorss with a JGY fuel rail, also I got a Z32 maf. Install the injetors and the MAF, the car cranks up but no gas when I press the pedal, unplugged the MAF and there is gas but if won't rev more then 2000 rpms.

My questions is: Do I need to different software for the MAF?Can the car be tune for this MAF with the APEX SAFC?

My sey up:SR20 red top JE pistons and rings eagle rods 1.5mm metal gasketHKS GT2510Custom 3" DP with test pipe 3" HKS exhaust hi powerTurbo XS FMICGreddy rs bovwalbro fuel pumpGreddy oil catch canTurboxs bosst controller (dual stage) Koyo radiator SAFC 2 (for fuel tuning)

That's all I can think of right now.

Hekp me please.



User avatar
AlfredoS13
Posts: 161
Joined: Sat Feb 24, 2007 7:00 am
Car: 1991 240sx hatch w/ SR20DET red top

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no one

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IanS
Posts: 9758
Joined: Thu Dec 23, 2004 3:07 pm
Car: 2002 Subaru WRX, 2010 Subaru Forester XT, 2004 Infiniti G35 Coupe.
Location: Esko, MN
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SAFC can only compansate up to 550 cc but it can control the bigger maf

silverarrow27
Posts: 460
Joined: Thu Sep 16, 2004 7:25 am

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SideWays=smiles wrote:SAFC can only compansate up to 550 cc but it can control the bigger maf
Hit the spot; only other option is to add an adjustable fuel pressure regulator and tune from there with your 720cc injectors and afc2.


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