dj1010

Hey guys so I've been wanting to get my car boosted for awhile now and I finally got around to it. I bought a used turbonetics kit and finally worked out most of the kinks. I am now moving on to tuning and I decided to try my hand at street tuning. I have done all my research and know how to do the tuning but I was wondering if anyone could help me out by sending me some maps that I could look at and get an idea of what people are running on similar setups. My setup is pretty simple:

2005 Scion tC
-AEM FIC
-Turbonetics Kit
-630cc Injectors (Siemens Deka IVs)
-One Step colder plugs

I am particularly curious about the maf clamping because I was originally going to go with the unichip but I decided to switch over to the FIC. I got the FIC after installing the turbo so I wasn't able to log stock WOT so I don't know where I should clamp on my car. The base map from Dezod seems to clamp pretty well but is there anyway for me to know if the ecu is picking up boost or does it not matter as long as I don't get a CEL.
Thanks for any help.

PeArLwHiTe07tC

iTrader: (2)

go onto dezod's website, click on the tech section, towards the bottom ull see a link for an fic base map. thatll get u in the general area as far as ur maf map is concerned. u also need to take into account, ur o2 map, as maf and o2 are the most crucial when it comes to closed loop tuning. no 2 cars are the same as im sure ur aware of from doin some research. make sure u build ur maf and o2 map first, and then make corrections with ur fuel. ur def gonna have to make adjustments to ur injector response time to compensate for ur size injectors. this can be done in the setup section of ur map. for example, im runnin dw 550's and i have my response time set to 650ms. ur prolly gonna have to set urs somewhere around the 700-750ms area. not 100% certain tho. make sure ur using a scanner that can give real time data for short term and long term fuel trims and fuel load percentage (it can be helpful). the reason i add fuel load percentage is due to the fact that u can see how much fuel is being supplied. for instance, i had an issue where i could no get my car to trim so i was throwing a p0172 bank 1 too rich. i noticed that my fuel load was @ 40% @ idle. its supposed to be below 30%. i made some adjustments in my maf map and changed my irt and everything smoothed out. hope this helps out.

dj1010

Ya I got the base map already and started part of the tuning. Adjusted the response time however im still getting a rough idle at times and injector pulse is set very high. I currently have it set in the 1100-1200 range. I feel like that is too much compared to others pulse timing but from what ive been reading the siemens have a very slow response time. Still im wondering if i need a full pump or if the injectors are bad. The car has 77,000 miles and the injectors are used and came with the kit (probably my first mistake buyin used but that's in the past). Not to mention the car feels very sluggish up top almost feels like it is cutting out. I have yet to mess with timing so i know that is playing a large role in the higher rpm hesitation (since as far as i am aware the base map timing is highly retarded) but that is just one more thing i wanted to see is what other timing people are typically running. Ive heard of some people running -3 and others running higher. Right now the hardest part is finding a driver I can trust that has time right now. And I do have a scanner with all the live data stft, ltft, timing, etc. I also know ones tune wont work for another but basically i just wanted to see some maps to make sure I'm in general area and do more research about what is typical so that if something is wrong with my injectirs etc and I am having to put more timing or fuel than I normally should I can have a better idea of what is out of the ordinary and what isn't. Also here is some more info on location I usually spend most of my time in Malibu and la so altitude won't really be an issue and temperature is obviously not very low for instance todays high is 57 were I'm at and it is one of the "colder" days. Oh and I was assuming boost is set at eight but when I did a boost test the waste gate opened at six so it might be the softer spring and driving around I get between 6-7 psi highest

PeArLwHiTe07tC

iTrader: (2)

Easiest way to check ur spring pressure is to take a vaccum gauge to the top of ur wastegate port and see where it fully opens. Than convert it to psi. Thatll give u a better idea. If u want, pm me ur email and ill shoot my current map over to ya tomorrow. Its set for 550's @ 12 psi. Ur gonna have to make alot of adjustments to the fuel map tho.

crush02342002

iTrader: (2)

http://scionlife.org/Scion_Docs/AEM_FI_base_files/

base maps for download

PeArLwHiTe07tC

iTrader: (2)

22psi with 550's chris? im takin it thats with a return setup?

crush02342002

iTrader: (2)

Says it all in the description- "70psi base fuel pressure. 1:1 rise fuel pressure regulator" so yeah return fuel system.

PeArLwHiTe07tC

iTrader: (2)

im actually glad that i checked that link out. i was wondering as to how much i may be able to get outta my 550's with a return setup. if i can make over low to mid 400's on the 550's, ill just keep em in and not have to worry about getting larger injectors. itll save me a few hundo...plus i want my car to still be dd. over 500 ill be askin for trouble.lol

crush02342002

iTrader: (2)

Careful though that tune was built during the summer in roughly 80-100f temps so you will need to up fuel pressure to 75psi and add a little on the fuel map around the top end.

Then again all those tunes are just base maps so final tuning is a must, I keep my finished top shelf tunes that iv built to myself.

PeArLwHiTe07tC

iTrader: (2)

I hear ya man. I dont plan on usin any other tunes other than the one im using now. Its workin flawlessly. I have a spot where im a bit leaner than id like it to be but its tough to adjust it while driving wot. Im gonna attempt to take the drive out to have paul tune my car after my build is done.

paul_dezod

That the map I sent you that you tweaked?

PeArLwHiTe07tC

iTrader: (2)

not quite paul. its basically the same map that i had that i sent you, all i ended up doin was tweaking the maf map, and changed the injector response time to 650ms, and sure enough, once i did that my car trimmed out beautifully. cel's been off for about 2-3 weeks and ive noticed a significant increase in gas mileage. i left the o2 map the way i had it and it seems to be nice a smooth both normal driving and transitioning into boost. it holds nicely at wot between 11.2 and 11.5 afr. i used the one u sent me as more of a guideline. i realized that my fuel load percentage was way to high. once i started decreasing voltage, i noticed the load % and stft started to balance itself out and after some driving i got em within +-10 and its holding fairly well.

paul_dezod

Even better! You learned off of it.

PeArLwHiTe07tC

iTrader: (2)

Absolutely. And i owe a large portion of it to u and this forum. Like they say knowledge is power.

trd07tc

iTrader: (-1)

What fuel pump are you guys running at 75psi base pressure?
22psi on 550s??

crush02342002

iTrader: (2)

that would be a dw

crush02342002

iTrader: (2)

datalog from using 550cc injectors @ 70psi base fuel pressure and 22psi of boost . ambiant air temp was roughly 80f. note the spike in rpms, clutch slippage ftw!
little hard to tell but I reached only 4555 rpms on this run (short road). IDC was at 86% so at redline your looking at upper 90's hence the reason for the warning to up fuel pressure to 75psi. Run was done either in 4th or 5th.

paul_dezod

Curiosity Chris, how much timing are you pulling up there on the FIC?

crush02342002

iTrader: (2)

currently or on that map?

that map pulls 13 degrees at 22psi

paul_dezod

Do you know what final timing is?