which ecu for 6th gen h22a swap
hub_01_69
10-27-2003, 03:39 PM
what jdm obd1 ecu would be the best to run with my 96 h22a auto tranny swap into my 2001 accord?
later
Josh
later
Josh
92lx
10-27-2003, 04:04 PM
I actually have a dyno graph of it in front of my face.
The P13 (h22 stock) is the best option for the daily driver, however, the P72 (GS-R if I recall) is a much better option from a drag stand point.
The P28 is also a great option as it is easily chipped and mofied among other things.
Quoting from an article:
H22: The power is smooth, there is not a noticeable lag when you go up the RPM's. But the fuel is not perfect for maximum power, as you can see/feel up top. The VTEC comes in later, on the stock ECU, so that is why its smooth....
GS-R ECU: VTEC comes in earlier....so you get a HUGE lag....but after that...the power screams and in the high RPM, you have more power considerably. THis would be a better pick for drag racing, but a little uncomfortable at about 4500 RPM, because it lags. Your ripping up to 4400 RPM, then it just falls on its face...then it screams again...but its good for racing.
It should be of note that the Lag cannot be fixed with simply a V-AFC. This is so because the timing and fuel curve cannot be changed enough to make it all go away. Timing at all...What can fix this problem is a Hondata System.
The results speak clearly....
The motor has a milled head, all the bolt on's, stock cams, stock intake manifold, S pistons. Cams have the sole effect on VTEC lag....The cams are obviously too big for the GS-R ECU.
---------------end of quotation.
- Nathan
The P13 (h22 stock) is the best option for the daily driver, however, the P72 (GS-R if I recall) is a much better option from a drag stand point.
The P28 is also a great option as it is easily chipped and mofied among other things.
Quoting from an article:
H22: The power is smooth, there is not a noticeable lag when you go up the RPM's. But the fuel is not perfect for maximum power, as you can see/feel up top. The VTEC comes in later, on the stock ECU, so that is why its smooth....
GS-R ECU: VTEC comes in earlier....so you get a HUGE lag....but after that...the power screams and in the high RPM, you have more power considerably. THis would be a better pick for drag racing, but a little uncomfortable at about 4500 RPM, because it lags. Your ripping up to 4400 RPM, then it just falls on its face...then it screams again...but its good for racing.
It should be of note that the Lag cannot be fixed with simply a V-AFC. This is so because the timing and fuel curve cannot be changed enough to make it all go away. Timing at all...What can fix this problem is a Hondata System.
The results speak clearly....
The motor has a milled head, all the bolt on's, stock cams, stock intake manifold, S pistons. Cams have the sole effect on VTEC lag....The cams are obviously too big for the GS-R ECU.
---------------end of quotation.
- Nathan
Automotive Network, Inc., Copyright ©2026