Ok my setup
b18b bottomend
b16a pr3 pistons
b16a head with rev valves and s2s1 cams with AEM gears
b16a tranny with LS 5th.
tuned with Hondata on a chipped p28
CM light weight flywheel and Exedy stg 1 clutch

(tuned open header) but now I am running it though a Apexi WS catback
OK heres the deal....Just messing around on the streets. I lauch my car at like 3K or so and it takes off strong, shift to 2nd pulls decent (seems to act like a GSR ecu or some **** with IAB) switches into vtec around 4.5 but then seems to pull even harder at like 5.5k.....Well then shift to 3rd and bam down to 4.5K again and that **** acts like I just let off the gas completly.

Sorry if this makes no sense I am tired and ready to go to bed.

I am thinking maybe it is the catback that I put back on after tuning.
I made 190 whp and 140 wtq....Tuned by Stoney at Velocity.

 

kinda sounds like a bad o2 sensor

 

why would you say that?

 

i had a o2 sensor that wasn't actually bad but was going bad, and in 3rd and 4th gears around about the vtec engagement point it hesitated real bad. changed everything i could think of and finally changed the o2 sensor and never had the problem again.

 

Oh ok thanks bro I will try it then...Did yours throw a CEL? Mine isn't just wondering

 

no it didn't actually throw a cel because i guess it hadn't completely puked out on me yet. i had be stumped for about a month.

 

try raising your vtec, wheres you timing set?