[home][rumors and news][model release matrix][dealer network][desktop calendar][exhaust notes][tov forums][links][search][sponsors][garage][login]

Tire Rack Upgrade Garage
 Search for a Dealer:
 Canadian Flag US Flag
 Honda Acura
 ZIP  
Acura
There are currently no active Acura promotions
Honda
There are currently no active Honda promotions
2020 Ridgeline goes on sale Dec 16, arriving with 9AT, Honda Sensing, locking tailgate, and more
More.......................
HPD launches a much more affordable $90k (race-ready) Civic Type R
More.......................
Acura engineers cook up a 350hp SH-AWD SLX restomod for this weekend's RADwood
More.......................
American Honda reports November 2019 sales
More.......................
TOV Video: Acura Type-S walk-around with chief designer Ben Davidson
More.......................
Max Verstappen Leads Honda-Powered 1-2 Finish in Brazil
More.......................
Handcrafted Acura MDX PMC Edition to Debut at AutoMobility LA
More.......................
News from SEMA: Hondata announces FK8 fuel system upgrade kit
More.......................
Today's Reading Links --> Re: Honda CEO - quality crisis hits profits
Join Discussion......
TLX --> Re: I did it...again.
Join Discussion......
Today's Reading Links --> Re: UK City Signs Off on Diesel Ban, Leaving Thousands With Second-class Cars
Join Discussion......
Repair and Maintenance --> Re: 2017 RDX Fluid Changes
Join Discussion......
Today's Reading Links --> Re: Kia Trademark Application Shows New Logo Could Finally Arrive
Join Discussion......
General Talk --> Re: Acura new V6
Join Discussion......
General Talk --> Re: Greetings from Iceland
Join Discussion......
Videos --> Re: Dying Art
Join Discussion......
Accord --> Re: 2020 Sonata (and N-Line) - Is the magic back???
Join Discussion......
General Talk --> Re: One-piece hoods
Join Discussion......
Today's Reading Links --> Re: Tesla Reveals Cybertruck
Join Discussion......
Civic --> Re: $3,999 Honda Factory Performance Package - Worth it?
Join Discussion......
Today's Reading Links --> Re: That Genesis G90 grille
Join Discussion......
General Talk --> Re: New Debuts
Join Discussion......
Videos --> Re: Tesla Model S dragstrip and HP losses measured at 100K miles
Join Discussion......
Jump to:
article details
Author WongKN
Categories Performance Parts, All Honda/Acura, TOV World
Create Date January 01, 1998 00:00
Last Update April 30, 2002 00:58
Introduction/Basic Functions

Field's SFC-Hyper

This is a translated version of the manual, which is, of course, in Japanese.
They are quick to point out that you can buy their harness "coupler"(for 10,000 yen, roughly $100) as to avoid any wire splicing.

DISCLAIMER: Please acknowledge that this is a fan site, and that the translation is not confirmed by any source - let alone Field. The translation is correct, so I take absolutely no responsibility for any damages or injuries incurred from a mishap on your part. Personally, if you can't splice 3-4 wires, you're better off paying $100 for the coupler...


Functions & Specs

  • Fuel injection control can be modified by increments of 1%, changing up to 30%. The fuel injection control can be changed at 7 points on the RPM curve (1000, 2000, 3000, 4000, 5000, 6000, 7000).
  • The unit will work with any ECU - stock, or custom.
  • The easily visible RPM gauge will show the engine RPMs in "Realtime" mode (while driving), and makes it easily visible during "Setup" mode. (hopefully you're not driving)
  • During "Realtime" mode, the fuel percentage mapping is performed in 100 RPM steps, and is displayed while driving. (See example if this doesn't make sense)
  • The SFC-Hyper will store up to 3 fuel settings for different driving conditions, and make it easier to compare fuel maps.
  • Settings 2 & 3 are pre-set as 2) fuel economy mode, and 3) standard performance mode, so even a beginner can benefit from the unit.
  • Adjustments to fuel maps can be made on the fly using the "Quick hold" function.
  • When no input is detected during "setup" mode, the unit will automatically return to "Realtime" mode in 5 seconds.
  • Compatible with a wide range of cars -- whether it be a "Kei" car or a GT-R. ("Kei" cars are super-compact cars with an engine size less than 0.66 liters; the GT-R is Japan's most famous GT car - loaded with turbo, AWD, and traction control)
  • For some turbo models, the SFC-Hyper will also remove the boost governor.
  • For some NA models, the SFC-Hyper will also remove the speed governor.
  • Safety features include low-battery sensors (prevents unit from malfunctioning) and auto-normal mode in case of other malfunctions.

A stock ECU takes into consideration smog laws, fuel economy, and engine longevity, so it is tuned modestly. Even a simple modification to your air cleaner element and exhaust system will benefit even more with giving the engine adequate fuel. Generally speaking, more fuel will increase the torque value, but too much fuel will make your engine lag (in raising its RPM's). On the other hand, decreasing fuel will make your engine feel lighter (will rev up easily), but too little fuel will result in knocking (aka hesitation).

WARNING : Please be careful when you decrease the fuel delivery. If you are not careful with this, you may seriously damage your engine.

Therefore, it is recommended to perform tuning sessions while the engine is warmed up. If you have a pyrometer or temperature sensor, you should confirm that the exhaust temperature is under 850 degrees Celsius for NA engines, and under 880 degrees Celsius for turbo engines during maximum load.

Though you can compare performance numbers on a dyno, the engine response is something that can only be felt by you, the driver. Use the multiple settings available to you to determine the optimum point for both performance and engine response.

1998 Temple of VTEC
This Page is not affiliated with Honda Motor Co. Japan, or any division of Honda Motor Co.

[Next Page]

reader's comments
Click Here to Submit Your Comments
Jump to:
TOV Photo Gallery: Honda and Acura at 2019 Los Angeles Auto Show
Read Article....................
TOV Photo Gallery: Other vehicles of 2019 Los Angeles Auto Show
Read Article....................
Photo Gallery: RealTime Racing's TOP secret Honda Collection Hall
Read Article....................
2019 Honda Passport PR Photo Gallery
Read Article....................
2019 Acura NSX PR Photo Gallery
Read Article....................
First Drive: 2019 Acura ILX
Read Article....................
Contact TOV | Submit Your Article | Submit Your Link | Advertise | TOV Shop | Events | Our Sponsors | TOV Archives
Copyright © 2019 Velocitech Inc. All information contained herein remains the property of Velocitech Inc.
The Temple of VTEC is not affiliated with American Honda Motor Co., Inc. TOV Policies and Guidelines - Credits - Privacy Policy
29