Author |
Message |
xrezzy1200x
DSM Regular
Joined: Fri Jul 20, 2007 5:49 pm Posts: 282 Location: Oxnard
|
680cc + SAFCII = ??
|
Tue Mar 11, 2008 7:44 am |
|
|
ghetto_bird
The Don!
Joined: Sat Sep 15, 2007 9:18 pm Posts: 1113 Location: south el monte
|
|
Tue Mar 11, 2008 8:57 am |
|
|
clockworktoy
Squish Face
Joined: Tue May 22, 2007 7:08 pm Posts: 4327 Location: LBC
|
|
Tue Mar 11, 2008 10:29 am |
|
|
xrezzy1200x
DSM Regular
Joined: Fri Jul 20, 2007 5:49 pm Posts: 282 Location: Oxnard
|
|
Tue Mar 11, 2008 9:10 pm |
|
|
Spyderman4g63
DSM Regular
Joined: Sat Mar 01, 2008 8:26 pm Posts: 42 Location: Hemet, Ca
|
The max the AFC can lean out is 50%. The AFC tricks the ECU into thinking it still on 450cc injectors. So the Largent injectors correctable by a S-AFC is 900cc Theoredically.
_________________ 363 whp and 318 ft/lb torque
HX-35 on 27psi and 104 Octane
|
Sun Mar 16, 2008 6:07 pm |
|
|
xrezzy1200x
DSM Regular
Joined: Fri Jul 20, 2007 5:49 pm Posts: 282 Location: Oxnard
|
|
Sun Mar 16, 2008 7:14 pm |
|
|
Joe
Site Admin
Joined: Tue May 22, 2007 7:35 pm Posts: 684 Location: garden grove
|
_________________ 1998 gst spyder evo16g@22psi 313 lb ft of torque 278 F.W.H.P.
|
Sun Mar 16, 2008 8:07 pm |
|
|
H8VTEC
Quagmire
Joined: Tue May 22, 2007 5:41 pm Posts: 2343 Location: Alhambra
|
_________________ Never buy a car you can't push 12.8 @ 109.75mph
|
Sun Mar 16, 2008 8:30 pm |
|
|
turboawdfanatic
Moderator
Joined: Tue Aug 14, 2007 2:39 pm Posts: 3013 Location: La Habra
|
Sorry this is a really late reply...
Something everyone is forgetting is that the reason that 650's are considered the limit with AFC is becasuse of TIMING, not fuel. The more you lie to your ECU with the AFC, the further off your timing gets. That's why people say to get a modified chip. When you lean out the AFC your timing gets more advanced. At full boost with too much correction you will have hugely advanced timing.
One thing you can do (if you own a 1g) is upgrade to the 2g MAF. Doing that requires enriching on the AFC, which will bring timing closer to where it should be. Or, you can hack the maf you have. Take out the lower honey comb. Un screw the maf adjuster. Basically you want to do whatever you can to allow more un-metered air around the maf so you can offset the needed adjustment for the injectors. For more info on that go and .
I'd recommend reading these links:
http://www.dsmtuners.com/forums/article ... guide.html
http://www.roadraceengineering.com/newafc.htm
|
Thu Apr 03, 2008 11:18 am |
|
|
Joe
Site Admin
Joined: Tue May 22, 2007 7:35 pm Posts: 684 Location: garden grove
|
or the other fix is to just run as much boost as possible to get the air flow up and get onto a better timing map
_________________ 1998 gst spyder evo16g@22psi 313 lb ft of torque 278 F.W.H.P.
|
Thu Apr 03, 2008 12:38 pm |
|
|
Project2G
Senior Member
Joined: Wed May 23, 2007 9:35 am Posts: 1259
|
I'll trade you your 680's for my RC550's?
_________________-SCM6152e Powered
|
Thu Apr 03, 2008 12:53 pm |
|
|
Spyderman4g63
DSM Regular
Joined: Sat Mar 01, 2008 8:26 pm Posts: 42 Location: Hemet, Ca
|
thats a huge mistake............ 550's for 660's. That problem only applies to 1G cars. 2G's only get 16 degrees of timing anyway so its not a problem. Run the 650, 660, 0r 680 and have it tuned on a dyno with a wide band and logger. You'll be fine.
_________________ 363 whp and 318 ft/lb torque
HX-35 on 27psi and 104 Octane
|
Mon Apr 14, 2008 1:16 pm |
|
|
H8VTEC
Quagmire
Joined: Tue May 22, 2007 5:41 pm Posts: 2343 Location: Alhambra
|
_________________ Never buy a car you can't push 12.8 @ 109.75mph
|
Mon Apr 14, 2008 2:16 pm |
|
|
xrezzy1200x
DSM Regular
Joined: Fri Jul 20, 2007 5:49 pm Posts: 282 Location: Oxnard
|
|
Thu May 01, 2008 7:15 am |
|
|