• Tech
    • Tech Category
      • Engine
      • Bottom End
      • Rods and Pistons
      • Head and Headwork
      • Cams and Valvetrain
      • Cooling and Heat Management
      • Intake
      • Headers and Exhaust
      • Rotary
      • Engine Management and Tuning
      • Drivetrain
      • Transmission
      • Clutch and Flywheel
      • Differential and Final Drive
      • Driveshaft and Axle
      • Axles
    • Tech Category
      • Suspension
      • Shocks and Coilovers
      • Springs
      • Swaybars
      • Arms and Links
      • Bushings
      • Steering
      • Geometry Correction
      • Suspension Setup and Tuning
      • Brakes
      • Wheels and Tires
      • Fueling
      • Forced Induction and NOS
      • Aerodynamics
    • Tech Cat
      • Electrical
      • Battery and Power Distribution
      • Electronics
      • Wiring
      • Electrical System Education and Troubleshooting
      • Lubrication
      • Interior and Controls
      • Exterior
      • Paint and Bodywork
      • Wraps and Film Protection
      • Exterior Care and Maintenance
      • Data Acquisition and Tuning
      • Fabrication and Safety
      • Tips and How-To
  • Projects
    • Make A-D
      • Acura
      • Integra (DC2)
      • NSX
      • CSF RSX (DC5)
      • BMW
      • E30 (SR20 Powered)
      • E36 323is
      • E36 M3 (Black)
      • E36 M3 (Silver)
      • E39 M5
      • E46 M3
      • E90 M3
      • E46 Racecar
      • Yost Auto E92 M3
      • Yost Auto F82 M4
      • Chevrolet
      • Camaro Gen5
      • Corvette Stingray (C7 Z51)
      • Corvette Stingray (C8 Z51)
      • GMC Canyon
      • Dodge
      • Viper GTS
    • Make E-I
      • Ford
      • E350 Tow Rig
      • F150 EcoBoost
      • Fiesta ST
      • Focus ST
      • Mustang 5.0 (Grey)
      • Mustang 5.0 (White)
      • Mustang S197 (Budget Track Car)
      • Mustang S550 GT
      • Honda
      • Civic EF Racecar
      • Civic Si (Coupe)
      • Civic Si (EP3)
      • Civic Si (Saloon)
      • EJ Civic
      • Polystrand CRX
      • S2000 (AP1)
      • S2000 (AP2)
      • Infiniti
      • G20 Racecar
      • G20 (P10 AWD Turbo)
      • G35
      • G37S
    • Make J-M
      • Isuzu
      • Vehicross
      • Lexus
      • ISF
      • SC300
      • Mazda
      • V8 RX7 (3rd Gen)
      • RX-7 (3rd Gen)
      • RX-7 Restomod (3rd Gen)
      • Skyactiv 3
      • Frankenmiata
      • Miatabusa
      • My Girlfriend’s Miata
      • Mitsubishi
      • EVO VIII
      • EVO IX
      • EVO X
      • CSF EVO X Racecar
      • Professional Awesome EVO VIII
    • Make N-P
      • Nissan
      • 200SX
      • 200SX SE-R
      • 240SX Land Speed Racer
      • 300ZXTT
      • 350Z
      • 350Z Drift Car
      • 370Z
      • GT-R (R33)
      • GT-R (R35)
      • GT-R (Team America BNR32)
      • LS S13
      • NX GTi-R
      • Pathfinder
      • S13 Drift/Grip Do-it-All Mega 240
      • Sentra SE-R
      • Sentra Spec V
      • Silvia
      • STurdteen Drift Car
      • Porsche
      • 991 GT3RS
      • Cayman (987)
      • Cayman T
      • Cayman GTS 4.0
    • Make S-Z
      • Scion
      • FR-S
      • Scion Tuner Challenge FR-S
      • TC
      • Subaru
      • Autocross BRZ
      • Legacy GT
      • STI (gen 2)
      • STI (gen 3)
      • WRX (GD)
      • WRX (VA)
      • Toyota
      • 4Runner
      • AE86 Corolla
      • GR Corolla
      • Starletabusa
      • Supra Mark IV
      • Tacoma
      • Tundra
      • Volkswagen
      • MKIV Jetta TDI
      • MKVI Golf TDI
      • MKVII Golf R
      • Sipster (Rabbit)
    • Other Projects
      • Powersports
      • Aprilia RS50
      • Aprilia SR50
      • Doodlebug
      • Ducati 998
      • Ducati Hypermotard
      • Honda Ruckus
      • Husqvarna TE610
      • Go Karts
      • Other
      • Sim Racer
      • Aurora Cobra
      • Garage
      • NP01 Prototype
  • Features
    • Features
      • Feature Cars
      • Drag Race Cars
      • Drift Cars
      • Land Speed Cars
      • Open-Wheel Cars
      • Rally Cars
      • Road Race Cars
      • Street Cars
      • Time Attack Cars
      • Drag Racing
    • Features
      • Events
      • Drifting
      • Land Speed Racing
      • Open-Wheel Racing
      • Time Attack Racing
      • Rally Racing
      • Road Racing
      • Car Shows
      • Columns
      • SlipAngle Podcast
  • Video
  • Shop *NEW*
  • MotoIQ Garage Services
  • About
  • Shop *NEW*
  • MotoIQ Garage Services
  • About
MotoIQ
MotoIQ
  • Tech
    • Tech Category
      • Engine
      • Bottom End
      • Rods and Pistons
      • Head and Headwork
      • Cams and Valvetrain
      • Cooling and Heat Management
      • Intake
      • Headers and Exhaust
      • Rotary
      • Engine Management and Tuning
      • Drivetrain
      • Transmission
      • Clutch and Flywheel
      • Differential and Final Drive
      • Driveshaft and Axle
      • Axles
    • Tech Category
      • Suspension
      • Shocks and Coilovers
      • Springs
      • Swaybars
      • Arms and Links
      • Bushings
      • Steering
      • Geometry Correction
      • Suspension Setup and Tuning
      • Brakes
      • Wheels and Tires
      • Fueling
      • Forced Induction and NOS
      • Aerodynamics
    • Tech Cat
      • Electrical
      • Battery and Power Distribution
      • Electronics
      • Wiring
      • Electrical System Education and Troubleshooting
      • Lubrication
      • Interior and Controls
      • Exterior
      • Paint and Bodywork
      • Wraps and Film Protection
      • Exterior Care and Maintenance
      • Data Acquisition and Tuning
      • Fabrication and Safety
      • Tips and How-To
  • Projects
    • Make A-D
      • Acura
      • Integra (DC2)
      • NSX
      • CSF RSX (DC5)
      • BMW
      • E30 (SR20 Powered)
      • E36 323is
      • E36 M3 (Black)
      • E36 M3 (Silver)
      • E39 M5
      • E46 M3
      • E90 M3
      • E46 Racecar
      • Yost Auto E92 M3
      • Yost Auto F82 M4
      • Chevrolet
      • Camaro Gen5
      • Corvette Stingray (C7 Z51)
      • Corvette Stingray (C8 Z51)
      • GMC Canyon
      • Dodge
      • Viper GTS
    • Make E-I
      • Ford
      • E350 Tow Rig
      • F150 EcoBoost
      • Fiesta ST
      • Focus ST
      • Mustang 5.0 (Grey)
      • Mustang 5.0 (White)
      • Mustang S197 (Budget Track Car)
      • Mustang S550 GT
      • Honda
      • Civic EF Racecar
      • Civic Si (Coupe)
      • Civic Si (EP3)
      • Civic Si (Saloon)
      • EJ Civic
      • Polystrand CRX
      • S2000 (AP1)
      • S2000 (AP2)
      • Infiniti
      • G20 Racecar
      • G20 (P10 AWD Turbo)
      • G35
      • G37S
    • Make J-M
      • Isuzu
      • Vehicross
      • Lexus
      • ISF
      • SC300
      • Mazda
      • V8 RX7 (3rd Gen)
      • RX-7 (3rd Gen)
      • RX-7 Restomod (3rd Gen)
      • Skyactiv 3
      • Frankenmiata
      • Miatabusa
      • My Girlfriend’s Miata
      • Mitsubishi
      • EVO VIII
      • EVO IX
      • EVO X
      • CSF EVO X Racecar
      • Professional Awesome EVO VIII
    • Make N-P
      • Nissan
      • 200SX
      • 200SX SE-R
      • 240SX Land Speed Racer
      • 300ZXTT
      • 350Z
      • 350Z Drift Car
      • 370Z
      • GT-R (R33)
      • GT-R (R35)
      • GT-R (Team America BNR32)
      • LS S13
      • NX GTi-R
      • Pathfinder
      • S13 Drift/Grip Do-it-All Mega 240
      • Sentra SE-R
      • Sentra Spec V
      • Silvia
      • STurdteen Drift Car
      • Porsche
      • 991 GT3RS
      • Cayman (987)
      • Cayman T
      • Cayman GTS 4.0
    • Make S-Z
      • Scion
      • FR-S
      • Scion Tuner Challenge FR-S
      • TC
      • Subaru
      • Autocross BRZ
      • Legacy GT
      • STI (gen 2)
      • STI (gen 3)
      • WRX (GD)
      • WRX (VA)
      • Toyota
      • 4Runner
      • AE86 Corolla
      • GR Corolla
      • Starletabusa
      • Supra Mark IV
      • Tacoma
      • Tundra
      • Volkswagen
      • MKIV Jetta TDI
      • MKVI Golf TDI
      • MKVII Golf R
      • Sipster (Rabbit)
    • Other Projects
      • Powersports
      • Aprilia RS50
      • Aprilia SR50
      • Doodlebug
      • Ducati 998
      • Ducati Hypermotard
      • Honda Ruckus
      • Husqvarna TE610
      • Go Karts
      • Other
      • Sim Racer
      • Aurora Cobra
      • Garage
      • NP01 Prototype
  • Features
    • Features
      • Feature Cars
      • Drag Race Cars
      • Drift Cars
      • Land Speed Cars
      • Open-Wheel Cars
      • Rally Cars
      • Road Race Cars
      • Street Cars
      • Time Attack Cars
      • Drag Racing
    • Features
      • Events
      • Drifting
      • Land Speed Racing
      • Open-Wheel Racing
      • Time Attack Racing
      • Rally Racing
      • Road Racing
      • Car Shows
      • Columns
      • SlipAngle Podcast
  • Video
  • Acura
  • NSX
  • Projects

Project NSX: Part 6 – Building The Ultimate Fuel Pump Assembly

  • Billy Johnson

Pump Comparison Chart
Reid at SOUNDPERFORMANCE compared the Walbro 416 above with the famous Denso “Supra” Pump, Walbro 255, and the Bosch 044.  As you can see, the Walbro 416 outflows all others by a significant margin, over 100lph more flow at our target 60psi of fuel pressure under boost.

Cut Barb
The first step in building our ultimate fuel pump is to modify the Walbro’s barb.  We had to cut off most of the first barb in order for our new Brown and Miller Racing Solutions O-ring fitting to be able to reach past the second barb so it can clamp down on the shaft.

Brown and Miller Racing Solutions (BMRS) has an arsenal of industry-leading military-grade fittings, hoses, clamps, adapters, electronic wiring, etc…  They supply most of the NASCAR, Indy Car, and IMSA fields as well as their PTFE lines and fittings to most of the top forms of motorsport around the world.  Polytetrafluoroethylene (PTFE) is a synthetic fluorocarbon solid consisting of carbon and fluorine.  The most common use of PTFE is as a non-stick coating for pans and cookware.  The best known brand name of PTFE is “Teflon” which is a registered trademark of DuPont.  PTFE is hydrophobic and has an extremely low coefficient of friction against any solid and is extremely resilient against corrosive chemicals.  This makes it the perfect material to interface with all fluids in a racecar.

BMRS lines
BMRS has a vast array of products in their ProGold line, from convoluted to smooth bore PTFE lines, to Stainless Steel, Polyester, and High Temp Polymer (HTP) braid with sizes ranging from a small -2 to a large -32 radiator line, and every connection and fitting you can imagine.  Their fittings have a constant internal radius with no necked down restrictions or abrupt changes in angle that can increase pressure drop and there are no welded, glued, or brazed joints either.  The entire product line is industry-leading and often copied, but never duplicated.

Almost all of BMRS’ lines are convoluted PTFE hoses which are extremely light, flexible, and compatible with ALL fluids used in racing.  PTFE has been used in motorsport brake lines for many years but BMRS has taken this technology and developed it for applications ranging from vacuum lines, to water, fuel, and oil lines.  Combined with their hose construction, fitting materials, and clamped fittings, BMRS have some of the lightest, strongest, and most versatile lines on the market.  Due to this construction, BMRS lines will not cause gasses to seep through the hose and cause your car and garage to smell like fumes which the old-school cheap ‘hot-rod’ lines and even many modern copies are notorious for.


Here we see this trick BMRS O-ring fitting that is used on many applications including IndyCar.  As the top half of the fitting is tightened, the conical shape under the cap squeezes O-ring down against the flat base, which causes the O-ring to flatten out and squeeze the inner tube which makes for a tight, solid seal.  You can also see the cylindrical back side of the fitting with 4 slight barbs which grab the PTFE line when the outer sleeve is crimped down onto it, ensuring a strong and flawless seal.

Fitting Barb Pic
While this connection is used in IndyCar and probably could hold our 60psi fuel pressure on a straight tube alone, with the lip of the barb intact, this connection will not have any issues until well past 60psi as failure in our connection would only take place if the plastic barb ruptures.

Related

Previous page 1 2 3 4Next page
Related Topics
  • Fueling
  • Acura
  • Acura NSX
Previous Article
  • Features

MotoIQ Radio: Mercedes Spat, the Purrari, and NASCAR’s Don’t Get Out Rule

  • JustinBanner
View Post
Next Article
  • My Girlfriend's Miata
  • Projects
  • Mazda

My Girlfriend’s Miata: Part 1 – Flyin’ Miata Frame Rail Reinforcement Kit

  • Daniel O'Donnell
View Post
6 comments
  1. Joshua says:
    February 20, 2020 at 4:44 pm

    This looks so clean! Can I get a parts number list for the fittings/lines/bulkhead connectors please? Thanks!

    Reply
    1. Billy Johnson says:
      August 31, 2020 at 11:55 am

      Thank you. Contact Brown & Miller Racing Solutions and tell them the dimensions of the shaft and barb of your fuel pump fitting (I can’t remember off-hand) and they will get you the correct part number. The wire bulkhead connector is ATL CFD-504.

      Reply
  2. Julian says:
    February 2, 2021 at 6:46 am

    Great solution.

    Only issue is wire configuration: fuel vapour will travel up through the wire – wire can never be installed like this; a better solution is to connect each end independently to studs.

    Reply
    1. Billy Johnson says:
      February 2, 2021 at 5:58 pm

      Those bulkhead wiring connectors have been used in professional motorsports for decades without issue.

      Reply
    2. Avatar photo Mike Kojima says:
      February 3, 2021 at 5:00 pm

      This sort of bulkhead wiring has been done by OEM’s and in Professional motorsports for generations.

      Reply
  3. RYU says:
    July 29, 2023 at 11:18 pm

    What made you decide to keep the factory return hard line? With all the work already done, did you consider making the return line bigger?

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Input your search keywords and press Enter.