i just put some dart 200cc heads and and 1.6 rollers on my engine. it is basicly a LO5, with LT1 cam, holley 670 tbi, weiand team G single plane manifold, hooker headers. my fuel pressure is at 21 i think. heres my blms and knock counter, and bin file

http://home.comcast.net/~tkd89rs/200...192246_BLM.txt

http://home.comcast.net/~tkd89rs/200...2300_KNOCK.txt

http://home.comcast.net/~tkd89rs/2.bin

i think i went in the wrong direction in tuning cuz now i have knocks where as before i didn't. can someone tell me how to fix this or change my bin in the right direction for me. thanks

 

All I get are pages not found.
If you went one way, and the engine didn't like it, then try the other way.

It's not about what you want to give the engine, it's about what makes the engine most happy.

 

ok, they should be fixed now

 

when i had probs with my part throttle blms I

made sure everything else was ok first...

then looked at the values in narrow correction and multiplied them by what i had in the VE table around the same load/rpm. try it for idle and low rpms first then move up, i am still not at wot yet.

 

Looks for the most part that you're rich down low and lean up top. You just need to rework your VE table. What bin are you using to start with?

For tuning the VE do a search for Jon Prevosts program called Aldltobin. You run the program by putting in your BLM log file and your original bin file and it creates a new bin file correcting your VE table by the BLM's.

 

There is a pattern to the knock.
As you improve the breathing ability of an engine, and raise it's best VE RPM, you need more fuel. And below that RPM less timing.