Hondata

I've tuned for each 10 degrees of cam advance and created a composite dyno curve. I've attached my most recent kal with a datalog where I do two highway pulls going in opposite directions on the same road. Ambient was about 73 degrees and IAT was around 100.

I've attached my newest VirtualDyno run ...

I've started the process of fine-tuning each of the intake cam advance tables. I'm adjusting the fuel and ignition advance on each and then I am compiling the best runs into a composite dyno chart. Already I can see that I have stayed with 40* of intake cam advance for too long and that I should ...

Just FYI, the gold is torque and the blue is intake cam advance.

I've attached the same chart showing power as well, with blue as the power curve.

I've included a picture of my K20A3 runs in which 5* of intake cam advance are compared to 10* of intake cam advance at the highest rpms. You can see ...

When posting a KPro problem with your vehicle, please include:
2002 Civic Si
SN 341
KManager 4.3.2
K24A2 with 50* VTC gear limited to 40*
RBB intake manifold with EP3 throttle body
3" intake, 3" Greddy exhaust and OBX race header
310 CC injectors
Hondata heatshield gasket
Lightweight flywheel
Type-S ...

Thanks for the input. I replaced the fuel pump and the pulsation dampener. I clearly needed a new fuel pump. But the issue remained.

I had NGK heat range 6 plugs. My guess is they were left over from my turbo setup. I threw a set of NGK 8s in there annnnndd...problem solved! The misfiring must ...

Hijacking my own thread, I know, but if more people did this it would be easier to find answers to commonly asked questions.

I cannot tune around the hesitation issue. Rich AFR, lean AFR, more or less advance, cutting the B18 wire on the wire harness, nothing made a substantial difference ...

Update - but still looking for input

I "artistically" smoothed the fuel maps and then added about 30% to fuel trim. I knew this would make the AFR very rich, but I wanted to see the effect on driveability. Overall, it was much better. The idle was especially improved. It was very smooth and without ...

2002 Civic Si
Kmanager 4.2.5
Relevant modifications:
3 inch intake with Ktuned velocity stack
OBX race header
Greddy catback
RDX 410cc injectors
lightweight flywheel
stock A3 IM (without the variable intake runners)
Ktuned TPS
MAP and IAT sensors are stock
Stock IAC
Kpro acquired with the car ...