Ok i took the 5 minutes to install the black box today, yes only 5 minutes. It was pretty straight forward. Now normally when i drive my car i get alot of jumpyness in 2nd gear with partial throttle. Today might of just been a great day for my car but i reset the ecu, did 2 runs without the black box. Then i reset it again, did 2 more runs with the black box. I know some of my numbers are a little lean and thats because the car needs to be retuned bad, when it was first tuned i was only able to hit 8.9psi boost but i changed to zpi full exhaust with stock s pipe and im boosting upwards of 10psi. You will need zeitronix program to be able to view these charts but they display afr, lambda, rpm, throttle position , and boost. Overall i definitely could tell a difference and if the car remains driving this way it was well worth it, it gave me the ability to put a little partial boost in there safely as far as i can tell. any of you folks who know alot about turbo's and afr's please feel free to give some constructive criticism i am open to in. Im not sure if i got on the car enough during the runs but it felt good.

Enjoy

http://www.zeitronix.com/images/ZDL_...ationFiles.zip
for the software


and the runs

http://www.sharebigfile.com/file/869...run-1-zto.html

http://www.sharebigfile.com/file/869...run-2-zto.html

http://www.sharebigfile.com/file/86938/bb-run1-zto.html

http://www.sharebigfile.com/file/869...run-2-zto.html

 

i'm having a hard time viewing the logs. i would like to take a look at your AFR's and see what you got going on.

 

watching

 

waiting to hear veteran feedback

 

you need to download the zeitronix zt2 program and then do file, open and open my data log. you will have to download the datalogs to your computer as well. hope this helps

 

ok, i just view the 3rd log and your AFR'S are all over the place. i'm going to look at the other 3 logs rgiht now.

what i saw on the log i just looks at is a very choppy A/F and lean throught the run. it looks to be just a quick pull.

at 4645rpms (5psi) i'm seeing a 17.50:1 AFR
at 4800rpms (7.40psi) i'm seeing a 13.40:1 AFR.

through that whole run your lean in boost. what are you using for tuning fuel?

you want a nice stoich reading at crusie and should jump to 11.5:1 under boost and hold till redline. now it's not going to hold perfect, but it should be in that area..

i'm going to look at the other logs now

 

correct i am running lean, as i said before. the car was tuned for stock exhaust, i have since changed out all exhaust except the s pipe. i noticed more the a .75psi jump in boosting and that is causing me to run lean. the black box helped my low end as far as i can tell.

 

yea, are you running the emanage? i looked at the 1st log and it looks smoother than the 3rd one. still on the lean side, then a rich flat spot..

i would do a run, tweak, and keep doing that till it's all dialed in.. i bet there is still power to be made from tuning.

 

im not doing the tuning myself, i do run the emanage though. i have all the necessary tools to do the tuning, just dont have the knowledge. i know what i need to adjust and where my afrs need to be, but i dont know how to adjust the injector map appropriately. im gonna pay a local guy to retune it for me. keep in mind those are shifting gear graphs so some of the high afr's are as i drop off the gas. i dont keep the gas pressed as i switch gears, i hate redlining.

 

yea, i been tuning for yrs.. i know that when you let off the gas, the AFR'S will go default lean.. usually 20:1 afr.. this is perfectly normal.

if i was closer to you, Id tune your vehicle for ya.

honestly, i really think the best setup for tuning dead-nuts on is a simple AFC (apexi) and a return fuel setup... super easy to do.. all you do is ballpark the fuel pressure, then fine tune the AFC.

when tuning a piggyback, you want as little MAF manipulation (sp*) as possible. when you start messing with the signal too much, other things are going to get affected.. mainly timing.

i think if your going to pay someone, try to have him explain what is going on; so you can gain some skills.

 

Where do you live again? Please say SoCal I'm going to be looking for someone to tune my car without paying for it with my limbs!

 

i live in South Flordia..

tuning really isn't that hard when it comes down to it. the only downfall is if oyur make a big mistake, it's bye bye motor.

i don't care if your running 5psi or 25psi; a bad tune can and will smoke a motor.

i think i'm going to put together a DIY tuning thread, so people can understand the basic concept. it's good to have an idea, even if your noting going to be tuning your own vehicle.

 

Oh man, if you put together a DIY for tuning a boosted tC, i'd be eternally grateful!! Cause I'd like to know what AFR should be at certain points and all that stuff. I know its been said alot, but it would be nice to have it laid out nice and simple in a DIY. As usual, Malloynx come through!

 

Please do.

 

Malloy, that would be greatly appreciated. I am going to go f/i, and it would be awesome to have some understanding of the tuning process on a DIY basis. You know us car guys, we like to do things without having to take em in!

 

sure thing, when i can spare an hr or 2, i'll put together a tuning aid.

sorry for thread-jacking this post

 

hey no problem. im aware of the variables and what to tune, just dont wanna get in over my head. i was around when it got tuned the first 2 times so im fairly familiar with it. but i dont want to add fuel where im not sure so on so forth. i drove the car today and it still hasnt gotten jumpy in 2nd gear when i give it a little gas so partial throttle is holding great. so far i am happy with the black box.

 

I'm glad it's working out for you!

 

Good work pollup. The ride is coming along nicely.