Results 1 to 4 of 4

Thread: Fuel Smoothing

  1. #1

    Default Fuel Smoothing

    In the photo is a section of my Base Fuel Table. I know it's supposed to rise from left to right and not have any dips or etc. That being said, in the low RPM area of the table, it's higher and than dips down then starts to come back up. Question is, when smoothing, do I try to take down that high area along the RPM side so that it flows nicely (increases gradually) into the rest of graph, essentially removing that dip that is visible now? Or would raising the dip to blend into the rest of the graph be a better option? Trying to dive into this stuff is overwhelming at times, but your info has helped me tons lately.
    Click image for larger version. 

Name:	Learn Fuel Smooth.jpg 
Views:	49 
Size:	36.3 KB 
ID:	8126

  2. #2
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    23,051

    Default

    Quote Originally Posted by 438wStang View Post
    Or would raising the dip to blend into the rest of the graph be a better option?
    Yes, then see if Learning (self-tuning) tries to subtract from it, and if the engine liked it before or after the ECU self-tuned.
    Read 4th & 5th paragraphs: http://forums.holley.com/showthread....2523#post62523 (Holley EFI Tuning Tips & Information)

    Trying to dive into this stuff is overwhelming at times, but your info has helped me tons lately.
    That's good news.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

  3. #3

    Default

    As I'm smoothing I noticed the amount of fuel lb/hr changing (increasing) from left to right. My question is, what would be considered too much of an increase from one cell to the next? I know it's supposed to be gradual, or is it really whatever the engine likes best?

  4. #4
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    23,051

    Default

    Just blend the entire Fuel Graph smooth according to it's general contour. The LINK in my post #2 (5th paragraph) has two good Holley Tech videos about this.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us