Hi guys! I'm tuning a friend's B16A2 boosted Civic. It's running a P30 ECU with Hondata S300 v3.

First of all I've loaded a JDM P30 basemap, then rescaled it to fit the RC 550 cc/min injectors. Engine started after few tries, and wideband show us a super duper rich engine. Low 11's on wideband at ~900 RPM idle when hot.

I have experience using Crome and Neptune and this never happen'd to me, I've tried to scale directly on fuel tables (lowering to 2.3 times) and we have got the same result.

Now at home I was reading a bit about my problem, then I've compared the JDM P30 stock basemap that Hondata offers vs. the JDM P30's on Crome, Neptune and eCtune.

Now, the surprise:

Neptune low cam fuel table:


Neptune high cam fuel table:


eCtune low cam fuel table:


eCtune high cam fuel table:



Crome low cam fuel table:


Crome high cam fuel table:


Well, values are such similar between different software. So, I can mix their tables and engine will run fine and stoich. Now, see those strange values on Hondata's:

S300 low cam fuel table:


S300 high cam fuel table:



As you can see, values are super high if you compare them to Crome/Neptune/eCtune/. Are S300's basemaps not really basemaps?


PS: tables were generated by each software, there was no correction on injectors or values or nothing.

 

You are looking into this WAAAY too much. You can't copy and paste between programs. To add to that, Hondata is one of the few that supposedly dyno tuned all the basemaps they provide. If you go off of that, all their timing maps are rather agressive it seems. A basemap is just that, a base starting point to adjust and build off of. Don't look at it like it's gospel, but more of each EMS's interpretation of the gospel.

Also, if you look at time lines of EMS history, you will see who copied who anyways. Legal battles and all... and who actually has continued to improve and who doesn't give a **** anymore and just wants your money.

 

Yeah, I know. Ignition tables are way similar between software. I've done this 'research' because the basemap was horrible running on a b16. Tomorrow we will try another map using the fuel tables from ectune.

 

If you have a wideband then why not just adjust the fuel tables accordingly? I don't understand what the problem is..