Results 1 to 2 of 2

Thread: AEM EMS and RC750 Injectors; Fuel MAP

  1. #1
    3S Obsessed verified Feedback Score 0
    Join Date
    Sep 2010
    Owner Since

    Location
    Richardson, Texas
    Posts
    14
    Thanks
    0
    Thanked 0 Times in 0 Posts

    AEM EMS and RC750 Injectors; Fuel MAP

    I recently resurrected the VR4 w/new engine build. I was running AEM EMS prior with RC550 injectors. The new build will flow more air and this build is with RC750s.

    AEM is V1.19

    I rescaled the fuel map I was running prior for the 750cc injectors but she is rich. Manual overrides (in idle load region ) brings A/F reasonably into check but RAW values in that map area had to be adjusted quite a bit lower than the rescale starting point and that puzzles me. (O2 feedback is off by the way)

    I'd like to take a look at a full map someone else is running to compare if there is just some diff in the idle zone or if the whole map might be subject to needing further rescale!

    The parts and piece specifics of my current build are in Sig. If one of you have a reasonably close matching build and running 750cc injectors and AEM, I'd appreciate a look at your fuel map - either copy into Excel (including the breakpoints info) or send an AEM Cal file. Email address is dan@hydehouse.com.
    Thx
    Dan
    97VR4
    Dan
    Pearl White 1997 VR4 (117K 9/2010)
    Engine: Merkel Racing; IPS EVO16G KIT; CAMS; Head
    Engine: AEM EMS; GM 3.0 MAP, GM IAT, GM EBC, RC750's
    Intake: Dejon Sidemounts, Hardpipes; Dual K&N
    Drive Train: RPS Clutch;
    Drive Train: Kormex LSD; KAAZ Rear LSD; SCE Center Diff
    Drive Train: PST CFDS;
    Suspension: TEIN Flex w/EDFC;
    Brakes: StopTech ST40 brakes & 355x32MM AeroRotors® rotors (Front) SuperCar Engineering;
    Brakes: StopTech ST22 brakes & 328x28MM AeroRotors® rotors (Rear) SuperCar Engineering;
    Wheels: PIAA 18x9.5 FR-S w/45mm offset ;TOYO Proxes T1-R 18x275x35;
    Gauges: Defi-Link (EGT, Water Temp, Fuel Pres, Oil Pres, Oil Temp, Boost and Display);
    Gauges: 2 AEM WB02 (Left & Right Bank);
    Cooling: Fluidyne DB-30816 Front Mount Oil cooler;
    Cooling: 3SX Dual-Pass Radiator w/Flex-lite fans;
    Cooling: Waterless NPG+

  2. #2
    3S Obsessed verified Feedback Score 0
    Join Date
    Sep 2010
    Owner Since

    Location
    Richardson, Texas
    Posts
    14
    Thanks
    0
    Thanked 0 Times in 0 Posts
    The "puzzles me" in prior post is puzzle no longer. I had the FP Solenoid plugged in and that's a 'no go' with AEM ECU. The FP Solenoid ground is always active (on) when ignition is on and that bypasses engine vacuum to atmospheric; effectively running higher fuel pressure (43 psi) at idle vs. ~36 psi with vacuum. My 550cc to 750cc scaled fuel map works fine now in idle region with minimal tweaks.

    Dan
    97VR4

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
3000GT / Stealth / GTO Resources
3000GT / Stealth / GTO / Multi-site Classifieds
3000GT/Stealth/GTO Event Pages
3S National Gathering
East Coast Gathering
Upper Mid-West Gathering
Blue Ridge Gathering
3000GT/Stealth/GTO Clubs and Groups
Michigan 3S
MInnesota 3S
Wisconsin 3S
Iowa, Nebraska, Kansas 3S
North California 3000GT/Stealth
United Society of 3S Owners
3000GT/Stealth/GTO Forums
3000GT/Stealth International
3000GT/Stealth/GTO Information and Resources
Team 3S
3000GT / Stealth / GTO Information
daveblack.net
The 3000GT/Stealth/GTO Web History Project
3000gt.com
3000GT / Stealth International WWWboard Archive