KA24e Motor Help

[Harmon27Racing]

I have a 89 240sx and when it redlines it bogs out kinda like it hits a speed limiter what can i do would a rebuild help

[Cone Junky]

It does have a speed limiter. You can modify the ECU or swap it with an auto ECU to remove the rev limiter.

[Harmon27Racing]

i Know that but why does it bog out when it hits the rev limiter rather then keep hitting it

[rocksteady_racer]

OOO I get your question now. That is weird. You mean like when you hit the rev limiter it does the same thing as it would if you hit the speed limiter? Like does it bounce of then won't go back up until a couple of seconds later?

[rocksteady_racer]

OOO I get your question now. That is weird. You mean like when you hit the rev limiter it does the same thing as it would if you hit the speed limiter? Like does it bounce off then won't go back up until a couple of seconds later?

[Harmon27Racing]

yes it hits the rev limiter and just loses power till you let off the gas and push the clutch in... I am using the car as a dirt track race car and i am rebuilding the motor this week... do you think that having bad rings had a little to do with it or does it have to do with the ecu

[rocksteady_racer]

Sounds like a sensor or wiring problem. My horrible ka24e I'm rebuilding hasn't had anything like that and the engine is at the point that I have to tear down and do a total rebuild.

[Harmon27Racing]

i am doing a complete rebuild too

[rocksteady_racer]

Cool. if you want I've got http://projectrush.net where I post my car builds - I also to make sure to blur out license plates on my pics. I can add you to the car sections if your interested. I'm going to post up pics and maybe vids of my entire sohc rebuild to turbo install on there. I don't know if you already have training unlike me lol - I've done alot of work on cars but never to the extent of a full engine tear down and reassembly. But if you type into google Nissan_engine.ISO -> mount it with daemon tools or burn it to a dvd - it's a complete video with how to disassemble and rebuild the sohc from the ground up. And if anybody else reads this and needs somewhere to keep their car builds just e-mail me at http://[email protected]