slow95

not sure where to start with this one only thing that makes sence to me is the dizzy but im not sure the car seems to run fine all the way to around 8 k and then it just stops instantly and if i try to accelerate it just bogs down if i cut the ignition and turn it right back its fine again anyone know ?

Atlantis

If it is the stock ECU. I think it might be called arev limiter

thermal

^lol......

Is your ECU chipped? Does the motor die out completely?

dc/dc

You need VTEC fluid.

slow95

these answers are special but the ecu is chipped with chrome p28 rev limiter is 9800 motor has rods and pistons dc header and a intake i checked codes today theres one for o2 sensor i think it might be running in safe mode have no idea what that all about i know the car is still quick not sure exactly what the safe mode thing is all about someone else brought it to my attention

dc/dc

Punctuation: Use it.

kanadaa

I'm going to go out on a limb and say its probably your o2 sensor.

Fabrik8

I'd have more work done than just rods and pistons before going anywhere near a 9800 RPM rev limiter. You're just asking to bend some valves really fast.

Probably the O2 sensor is causing the ECU to default to a safe mode, I don't know why it would do that though because I don't think the ECU actually uses the O2 sensor at that high RPM. It could be the distributor though; if you're losing crank or cam position it might make the ECU hiccup and go into limp home. And CELs when it starts to act weird?

broke_honda

replaced the O2 and then do some head work before 9800 sounds like a good idea. it sounds like a good build thought but some spring and retainers would do you some good. what kinda of pistons and rods are they btw???