Au contraire.... I learn from you and Dan (djt81185). I am just a learning apprentice in the tuning world.

I did surprise myself though... I had a few ideas yesterday while watching the charts on the dyno. My ideas were all mentioned in the information I found while searching online today. Just too bad that none of them applied in this case.

I really think we just need to get a wideband on this car and take it out ourselves. I'm pretty confident we'd be able to iron this out on our own.

Also, I agree on the MAF sensor placement. Pull-through should allow for more accurate readings on this setup. Too much turbulence in the charge piping... especially with these smaller pipes with a lot of bends. I think the longest straight piece in the entire setup is where the MAF sensor is now.... and the recirc entry is pretty far up the pipe from the sensor. It's pretty much ideal placement IMO.

 

I agree with this X100. The car is going to need more than just a dyno tune to smooth PE. Since its a daily driver in a county where OBD2 emissions are a must, every sensor should be decently recalibrated.

 

Same with Subaru systems and I brought this up to the tuner yesterday. He just looked at me.

I guess I'm dirt...

 

This sounds like my frenzy trying to tune my twincharged setup....

 

OMG, come out for a beer once and a while then. grrrr

/end threadjack


Celica, any chance you can make it out towards Robinson or Monroeville tonight for some wings and tuning?

 

Just call me. Only one who calls me is Dano X2. Don;t blame you guys though who wants to hangout with a DAD.

 

Agree on the MAF, which was why I was asking.

The Alpine set-up that will be going on my 2.4 Auto next week will use the SMT-6 for tuning. Obviously I'll report back on tuning issues with it. What we come up with there can be directly applied to your situation, just programming a different processor.

 

Alpine uses a pull through set-up right? I would think that blow through set ups are a recipe for MAf turbulence and although tunable, it tends to throw CELs later on.

 

Yes, Alpine places the MAF between the filter and the turbo inlet. John there was commenting to me that you want it in the straightest run with the lease turbulence, which is the same thing you all have been talking about.

I'd also worry about sealing a MAF in the pressure tube - while it is relatively easy to seal it to the tube, the MAF itself isn't designed to hold pressure and I'd wonder where it would spring a leak (I can just see it blow the connector off like a champagne cork!). Also, does the MAF also act as the inlet temp sensor (ambient air temp sensor)? If so, then ambient temp going into the engine would actually be more accurate with the MAF in the boost tube. But it might not be worth the other hassles just to get this precision.

 

that sounds awesome but im at work till 10pm tonight i actually wont have a day off till wed of next week, but if garrett,pcmforless,asaperformance and you guys figure out the issue before then , that would be a call off day i guess.

im a dad but then again that makes me not be able to hang as much lol

 

I don't think we'll figure anything out without seeing your tune. We have some ideas, but there's no way to tell if they might work without seeing what Brian did to the car already.



Aw come on... you know I meant you too. I just mentioned Dan and Al cause that's all that Al mentioned in his post. You teach me a lot about the hardware and the setup as well as the tuning.

 

well id like you guys to look at the car, are any mornings good, i dont leave for work till 1230 everyday. other than that i gotta work till 10pm most nights

 

Its ok...I was just yankin yer chain. i am MIA most of the time I know. I've had a tough year, I hope everyone excuses me. (BIG CYBER HUG)

 

SHENANIGANS...shut your mouth!!!!!!!!!

Dan runs back and looks at his blow thru maf and whispers:
"its ok baby he didnt mean it...you'll work just as intended evil laugh"

 

Mines also blow thru dan.....

 

Haha... it's ok. Your turbo has to actually spool in order to produce any pressure in your charge pipe.

 

O no u di'int!

 

well, the tuner said he wants to erase everything now and start all over...

 

NGK LTR7IX-11 is 2 steps colder than stock.

 

whats the code for our stock plugs?

 

According to the NGK website, ILTR5B11 is our stock OE laser iridium plug.

 

Have fun with those CELs senior boost.. (GTP hopings he's wrong)...

 

well i figured now that im just gonna go 1 step colder for street use and mild boost with the NGK Iridium LTR6IX-11 , thanks for the help ill go pick these up now

 

Kinda makes you wonder why the shop said "there are no plugs out for this car...???"

 

NGK LTR5ix11 is actually stock heat range plug for a 2.2L ecotec J-Body. There are 6ix and 7ix heat variations for these plugs. (I have 6's at home that I bought last year from sparkplugs.com)

The 2.2/2.4L Cobalts use slightly different plugs, and last time I was looking there were no heat variations available. That's probably why the shop said that.