B20 jdm
b16 head/cams (some sort of upgraded valve springs)
Intake, type r ebay header, 2.5" exhaust

So i bought the car as is, it runs fine. I noticed a lot of soot coming from the exhaust and pulled the plugs and they had alot of build up on the fuel ring, as well as on the insulator. I went back up to the stock 6 heat range, an they look better, soot isnt as thick. I finally got was able to pull the bin file off the chip yesterday, and here are the tables, fuel low / high, ign low /high. I've compared them to other base tunes, and bins posted online, and the fuel numbers just seem so far off. This car also came from 4000ft elevation, and now is at sea level. I did pick up an aem UEGO which will be going in hopefully this weekend so i can get some real data. Fuel pressure is set to 45psi.


Fuel low cam


Fuel high cam


Ign low cam


Ign high cam

 

fuel and ignition tables are absolutely useless for determining anything without seeing ALL of the compensation settings, and knowing what size injectors you're using.

really, I think you just need a professional to tune the car for you. especially looking at the ignition tables and how they're practically straight up linear, which suggests the entire "tune" is just a crappy slapped together basemap that has never seen a dyno or any form of extensive tuning/testing. look at columns 1 through 5 on the high cam ignition table; see how they are exactly the same top to bottom? that's garbage, and 99% of the time that will never be ideal for any setup. granted it will never read anything in the high cam maps that is at a lower rpm than what vtec is set for, but from vtec to rev limit, it will almost never be a solid flat line ideally

 

that looks pretty similar to a lot of B20Vtec maps I tune, however if it was tuned at a 4k elevation there are nearly 3 fuel & ignition columns that were basically estimated, and I generally estimate rich for protection so you definitely need a new tune.

 

Which column's? Last 3 ? I should have my aem uego hooked up this week so I can see the real afr #s

 

all of them. nothing in any of those tables are even remotely close to tuned. it's extremely obvious to any experienced tuner.

 

I disagree somewhat. The fuel tables are noticeably altered and don't resemble any stock map, so there's at least a fuel tune. He made some minor adjustments to otherwise stock ignition tables, probably to account for knock. Amateur, but it's probably safe and powerful enough for his ricer customers.