Evo_Goodness

So long story short when i do a first pull i get knock not high counts never over 3/4 its most of the time around 2 counts to 3 but its constant but then i can log 10 more times in a row and get no counts am i over thinking something here lol...
I cant figure out why i get my first log with counts of knock then no more logs show it after that has anyone seen this ill post both logs so people can look them over

I know i don't have boost showing or A/F but they are inline at spool up i'm seeing 12ish and full and as i go into full boost it tapers to 11.4 give or take a point each direction thats at 21PSI tapering to 18PSI.

I cant log 2 byte yet waiting for my omni 4 bar to show up


Mods are DW200 fuel pump
injen upper lower IC pipes
Injen CAI

stock injectors
stock turbo

Evo_Goodness

PS i also did 4 more runs after the one showing no knock and it was the same 0 counts of knock

Evo_Goodness

Any one have any ideas ? Beginning to wonder if it phantom knock

Abacus

iTrader: (9)

If you want to rule out knock then you should schedule some dyno time and see exactly what the timing gains/loss is. A dyno session is cheap compared to bigger problem . Road logging with a single knock sensor and hobbyist software can only be so accurate..

Timing Looks to high . These engines don't need alot to run. A ramp from 0-3 on the hit and work up to 12-14 should be a good ballpark on most fuel.

They really don't need to hit 19-21 out the top if your log is correct. This isn't a game on trying to pack as much in as possible to try and win.

Less is actually more in the long run.

LetsGetThisDone

iTrader: (1)

What fuel is this on? Pull 4-5* out of your timing map, minimum, to start. Too much timing in that. Like Abacus said, at the hit you should have about 0*, ramp it up to 3-4 degrees at 5k, and then only revving to 7k, you should be seeing 12 up top. If you take it 8k, maybe 13 or 14*. With that timing, you can run more boost, like 24-25psi on the hit, and let it taper up top because it's a stock turbo.

Evo_Goodness

Oregon 92OCT here's the funny things it's still on the stock timing map lol I haven't messed with it yet but I guess it's time to start my AF where way lean at WOT because the stock fuel pump was dying

LetsGetThisDone

iTrader: (1)

The stock timing map is too much timing for any American pump gas.

Evo_Goodness

Well then lol you learn something new everyday guess it's time to start pulling timing should I pull 4/5 degrees across the hole map and then work on it from there or.? Or should I start removing timing from those sections and work off of it from there ?

LetsGetThisDone

iTrader: (1)

I would do the whole map, from like 120 or 140 load and up. And then work on smoothing it as well. You want a larger jump that 2-3 degrees with load change of 20, and no more than 1-2 for an rpm change of 500rpm

LetsGetThisDone

iTrader: (1)

I'll try to put up a pic of a reasonable starting point for timing when I get home

Evo_Goodness

If you would that would be awesome man I could really use a good point to start with

LetsGetThisDone

iTrader: (1)

Pic fail

LetsGetThisDone

iTrader: (1)

This is NOT an English Racing timing map. This is someone else who I no longer use.

I would take this map, and highlight the 120+ load for all RPM's, take 3-4 degrees out, and give it a try. Watch for knock while you're making a pull. If you have a stock ROM, you won't have this much resolution. You also won't need it. And then look for your logs to look like how Abacus and I mentioned the timing curve should look like. Remove or add timing as needed.

Evo_Goodness

Thank you very much I'll tinker with it tonight.
So pretty much start at the 120 load and pull 3/4 degrees and across the full rpm range so starting at 500 all the way to 8k and log then smooth it from there hope I got that right lol the fuel map was a lot easier to get smoothed out lol

LetsGetThisDone

iTrader: (1)

That map is already smooth. Just drop it down, and see what you're hitting.