Hello guys,
Can someone take a look at these? I have the performance flash with the K&N short ram loaded. Just want to make sure my A\F ratio is safe and what is the duty cycle of the stock injectors.
Any help would be appreciated!
Jake

 

After looking at them in the software I can see I am at ~80% duty cycle when WOT.
But for all the normal driving it seems okay?

 

These logs are massive and mainly useless. i only saw one good WOT pull in datalaog 0001. is datalog 0000 stock?

I'm seeing a LOT of knock retard and count in second datalog! Ignition timing is much too retarded due to knock.

you are running too lean, 12:1 AFR is not acceptable for this car under double digit boost. You should be in the ~10.5:1 AFR region. this could by why you are knocking.

boost is too high at 14 psi at 3800-4200 RPM for this lean condition

in contrast the stock or 0000 tune which has slightly less boost is a better safer tune overall.

 

Thank you for your input pickler! No 0000 was my first attempt at data logging. I did not have much luck doing any WOT pulls. Luck would have it when I got on the on ramp a sherrif was right behind me!

They are both with the built in tune from Hondata flashpro. Their performance tune with the k&n shortram. I have the CP-e which is a similar intake.

Suggestions!!???

 

Should I back off the k&n tune and just run the performance tune for a data log? Even maybe back to stock? I'm surprised Hondata places this tune with the flash pro if its not safe\reliable?
Help...

 

if possible go back to stock intake and log again. you are not getting any more boost than I was getting when stock. Are you at high altitude? what gas are you running. can you list the mods.

 

I really like this intake and hope to keep it. My goal is to get this to work.
Options with the CPE intake?
I was planning on adding my final two mods tomorrow.
ETS intercooler and an ATLP exhaust.
Think I should put just the performance flash without the k&n or even stock? I assume I will have to tune this via a tuner and forget the Hondata flashes.
Don't want to cause damage to the engine.

 

Okay this morning I re-flashed to the Stock Tune map. Went to some country roads and did a couple of WOT's. Small files.
Let me know how these look? Better or worse than yesterdays with the k&N tune.
Thanks guys!
-Jake

 

Can you support your suggestion for a 10.5:1 a/f ratio for under load? That seems insanely rich for an engine like this. Stock might be in the 10.5 range as many manufacturers tend to err heavily on the side of caution, but that's what the aftermarket is for.

Granted, all engines are different, but it seems most other 4-banger non-DI turbo cars like 11.5:1 - 12.5:1 depending on application. And almost every one of those engines runs more boost than this one.

 

If I can remember correctly, vitviper tuned mine around 11.5-12 A/F.

 

10.5:1 is not insanely rich, on the dyno I notice there is not much difference in power between wide fuel ratio range of 10:1 to 13:1. However exhaust gas temperatures vary dramatically and so does knock count. I also have tuned Subarus and Mitsubishis at much richer values with no issues. The RDX Turbo hits 8.5-9:1stock on the dyno. For US 93 gas I wouldn't trust anything leaner than 11:1 under peak VE or peak boost.

here is the EVO-x open loop fuel map for an example:




Also the AFR reported by this sensor is not to be trusted. He needs to install an external wideband sensor.

EVO-x Fuel Map

 

Knock count wasn't incremented in the second shorter log and it's actually running more boost (which makes sense as the ECU pulls back on boost on knock). You hit 14.7 PSI peak and tapered to 10 psi which is respectable for this car. However in the first log there is still knocking and your 'AFR sensor' is reporting very lean numbers. i have a feeling your intake is responsible by messing up the MAF scaling. I don't trust what the factory narrowband is reporting as they don't report anything accurate under pressure, but it still seems strange how there is detonation on stock tune.

 

Sorry I missed one of the logs, datalog0001 had highest boost level at 15.6 psi (3 psi higher than log0004 and pretty reasonable 11.8:1 target AFR (vs 13.3:1) at 4k RPM. Timing was extremely retarded at 3* (watch out exhaust valves).

anyway sorry for getting too confusing but this means your tuned map is definitely running better than stock, I would just go back to tuned map.

 

That's crazy...at 8.5:1 I'd expect to see a carbon-filled smoke show. Thanks for sharing the info. Sometimes I wish I had my previous car's engine int his car. 2.0 turbo, ran 20 psi @ 14:1 trailing to 13:1 afr all day every day. Direct injection is a wonderful thing.

 

Logs 1 and 2 were with the Tuned AND K&N from Hondata.

Logs 3 and 4 were with Just the Tuned flash NO K&N.

The tunes that come with the Hondata are:
Stock
Tuned
Tuned and K&N

So to make sure I have this correct.
You feel just the Tuned flash is the safest?

Thanks for the input pickler!

Once I get my final mods on (ATLP exhaust, ETS IC, 600CC Dw's) I will be taking it to King Motorsports for a FI tune.
They said it will take all day and may do as many as 60 pulls if it has a stubborn knock sensor, which looks like that is the case!

 

Yes your knock sensors are going crazy. And yes tuned knn was best or datalog0001.

I had 47 revisions or dyno pulls when tuning my Subaru too due to knock. American gas ftw lol.

 

Okay. That would make sense and the K&N short ram is similar to the CP-E intake that I have on.

I will just keep it out of full throttle blast mode and drive it "normal" until I can get it into King for the safe WOT tune, especially when I get my exhaust on later today.
I dont think the heat exchanger will do much more leaning out, just provide a colder\denser charge.

Thank you very much pickler for you analysis!

With a wide band you need to drill into the exhaust and put in a special 02 with gauge correct?

 

nope use the secondary O2 port and just turn if off in flash pro. this only works if you have the RV-6 down pipe.

 

ya your timing is very retarded under boost with the tuned map which suggest lots of knocking so that would be a good idea. Looking at logs again i saw this:



that's really lean for that much boost. could be because it's staying in closed loop mode since it's not full pedal depression (even though full throttle and hence boost). So watch out.


+1

 

Mine runs 11.6-11.8 and is killer on mpg's and power is insane.. 70 in 5th going to 3rd is very fun and hold on.