I think it was the AP TB set-up, that you had trouble with your prior thread, that gave you the added power...LOL...

 

Every one like logs so here is the last and 10th back to back pull! log

 

That is alot of timing and mid range A/F ratio is definetly on the lean side until 5000rpm. Maybe for now bump up the size of ur meth nozzles or add another nozzle.

You should really look into getting a fuel system for your mods.

Boost looks like they kept it between 1.2-1.3 bar on peak.

One thing for sure is you gotta love the IATs on Meth.

 

I just updated the log with boost, I was worried about the timing to... doest the ECU adapt by itself? so timing will advance until knock? I hear about the ECU adjusting to race gas after a few runs, I assumed this is how it does it?

 

I have lowered the high boost setting by 2 psi so hopefully it will run a bit richer/safer now than this log.

 

Here is your high boost and A/F log that you sent me .... graphed.

 

Thank you

 

no problem. here is the low boost log you sent me. still kinda lean...

 

Whats an acceptable AF ratio for these cars? By all accounts it appears like it runs lean and richens a bit when boost hits 12psi or 4200rpms.

 

One thing I don't know is how 50/50 meth/H2O affects the AFR and how you tune for it, from what I gather you typically tune leaner since Det is not a problem and EGT temp also drop at least 200F. I am injecting 20%-25% of total fuel system capacity at full chat so this gives me a lot more fueling capacity so the WHP#'s may not be that far off?, food for thought anyway. Scott/Softronic has tuned a bunch of 996TT's with meth Inj with great success so far and I am far from qualified to second guess him. We will see how long it lasts

 

Man that is a good bit of timing! Boost comes in pretty late for a K16 as well, I would expect 1 bar about 1000rpm earlier. Did you leak check it after assembly? I have a turbosmart EBC as well, you can get rid of that little spike with some tweaking.

 

It's a about 500 rpm late from what I can see from AMS charts 1 bar is at 3500 rpm

 

These billets also have clipped wheels that will slow spool I believe

 

Sucking those rails dry.
On those AF's are you running cats?
What do you/Scott think about a 2nd pump?
I'm sure he would tell you if he was alarmed.

 

Yes running a euro pipe stage 2 quiet it has big cats does it make a difference ?