I'm building B18C n/a setup and would like engine to have rev limiter at 10,000 rpm. The problem I faced is how to force ECU to properly use fuel map above the stock map scale.

Is it any way to enlarge fuel map, so I can tune the fuel map up to 10,000 rpm?

Please help.

WojtekG

 

what cams are you gonna use that will make power to 10K? :eh:

 

You need a fully programmable, stand alone ECU. 10,000 is a lot of RPMs for anything other than a car that sees dedicated track duty. Spinning that high will require some thought and money for a valve train that will support the RPM as well as the rotating assembly. And to reinforce what snoopy said, not many cams are going to make power that high up.

 

Probably hondata. If you have the mods to support that rpm ....more power to ya.....if not..I don't recomend that rpm.
You can set your rev limiter where ever you want, making power at that rpm is the trick.
Check www.hondata.com to see if they support your ecu of choice. If it's obd-2 you'll need to swap to a obd-1 ecu.

 

bc4 cams make power till somewhere around 8kish, but they maintain that power till about 9700 and then drop off, only cam i have seen make power up there, but i am a super noob at looking at dyno charts. I think I will be going with these cams and see what happens, if they lope too bad, ill get rid of them, but if they dont lope, ill love them.

 

I guarantee they will lope. What is so wrong with a lopey idle?

 

There is no way a motor with headwork designed for power at 10k will ever run well low end.

 

that is unless it was built directly for it...

the only way i could see this working well is a continous valve timing system, perfect timing for every RPM, OR 3 stage VTEC

that said i dont know of a CVVT system yet, and i dont think they make a b-series 3 stage vtec head... so for the time being ed9 is correct... you will lose all low end power...

 

i can see how i-vtec with its vtc system could rev that high and still make somewhat decent low end.

 

if the motor doesnt pull a decent idle, the power brakes will fail to work since they are vacuum operated.