Losing top end, anyone help?
Okay, the motor has probably 3000 miles or less on it since the rebuild. No codes anymore, did some work and fixed the map code. But we are still losing lots of top end power. Its only AFTER VTEC. Once in vtec the revs actually slow down it seems. Hes runnin an APEX vtec controller, wtih no settings, just pretty much vtec. Is there anything in there that can contribute to helping top end? Neither of us understand the APEX so... Maybe someone knows a website that describes how better to tune it, other than taking it to a shop and having them dyno it. But thats most likely what its gonna come too. Any help to what could be causing top end lose?
the only way to tune a vafc is on a dyno, you can use peoples settings but i wouldnt advice it if you dont want to **** your motor up,
heres what my settings were by the way i strongly recommend you not use these but here you go anyway, this is what i used on my old setup
mods
b16a
pr3 ecu
jdm header
b16a cams
lvt
10 +0
20 +2
30 +3
40 +5
50 +6
55 +6
60 +6
65 +6
----------------
hvt
40 +1
45 +3
50 +1
55 +1
55 -1
60 -3
70 -10
80 -12
90 -15
-----------
l -> h :5200
h-> l :4800
-----------------
th-point throttle lo hi
--- ---
10 50
nep hvt
----------
ne 1-4k
2-4.5l
3 -5k
4-5.5k
5-6k
6-7k
7-8k
--------
nap lvt
--------
ne 1-1k
2-2k
3-3k
4-4k
5-5k
6-5.5k
7-6k
8-6.5
--------------
narr thr = nothin
v/t= nothing
heres what my settings were by the way i strongly recommend you not use these but here you go anyway, this is what i used on my old setup
mods
b16a
pr3 ecu
jdm header
b16a cams
lvt
10 +0
20 +2
30 +3
40 +5
50 +6
55 +6
60 +6
65 +6
----------------
hvt
40 +1
45 +3
50 +1
55 +1
55 -1
60 -3
70 -10
80 -12
90 -15
-----------
l -> h :5200
h-> l :4800
-----------------
th-point throttle lo hi
--- ---
10 50
nep hvt
----------
ne 1-4k
2-4.5l
3 -5k
4-5.5k
5-6k
6-7k
7-8k
--------
nap lvt
--------
ne 1-1k
2-2k
3-3k
4-4k
5-5k
6-5.5k
7-6k
8-6.5
--------------
narr thr = nothin
v/t= nothing
Okay well I got some questions. Which ones let you adjust with fuel curves, and hgih vtec and low vtec, and what they each do.. I just want to know what each one of these means. Any help? Its a D16Y8 also.
Thread
Thread Starter
Forum
Replies
Last Post
yellowcrx88
Honda CRX / EF Civic (1988 - 1991)
2
Jun 2, 2003 05:53 PM
yellowcrx88
Honda CRX / EF Civic (1988 - 1991)
7
May 31, 2003 06:30 AM




