|01-23-2003, 01:54 AM||#1|
Join Date: Apr 2001
Location: Chicago, IL, USAVehicle:
2002 fake STi
silver and pink
Dyno tuning the UTEC and/or ems in general
I am bringing my car in for dynoing...4wd dyno. for my stage 3 UTEC setup
How should I start to tune?
I am calling TXS tomorrow but would like to soon you guys out first.
step 1: do a baseline run in 3rd gear to make sure that everything is ok with the engine...check HP, torque, boost, wideband A/F ratios and IDCs....
step2: assuming everything in step 1 is ok. start reducing fuel across fuel map (rpm range) by the smallest increments keeping the values constant across the MAF % readings. when knock is detected at any point in the rpm range start adding back fuel. My question is this way I am basically tuning for WOT and assuming that the fuel settings are safe for part throttle (>60% but <100%)condition. Don't we all drive at WOT?
Or do I do the above fuel reductions and keep an eye on A/F ratios...once it goes above 11, stop and add back fuel at that particular rpm? Better yet, monitor both simutaneously?
step3: start increasing timing across the rpm range evenly by 1 degree. no knock ...proceed by another degree. once knock is detected... note rpm where knock occurred??? Is that possible since I am flooring it?
Is my approach correct? I am assuming the shape of the fuel map and the timing map to be optimal and this may be a wrong assumption. If so How do I tune at specific rpm points? Wouldn't that require an inordinate amount of runs?
* Registered users of the site do not see these ads.
|01-23-2003, 12:07 PM||#2|
Join Date: Dec 2001
Location: Chester Springs, PAVehicle:
2006 EVO MR
I would do the same...
UTEC logs do not provide AFR data enough to tune.. So, I would check and adjust the FUEL map.. (But, you should have a specific boost curve in mine so that AFR will be consistant).
I would not run more than 16 PSI with the STOCK turbo. So, I would create FUEL map for 16 psi and another one for 18 PSI (for drag racing and stuff).
As you said, I would do TIMING next to see if you can advance a little with the help from TMIC...
After you are done! Can you send me a copy of map to my email address? : )
Dan from PA.
|01-25-2003, 12:58 AM||#4|
Join Date: Jun 2002
Chapter/Region: South East
Location: Charlotte, NCVehicle:
2010 Impreza with no
Actually... when you get that mapped tuned stop by my website if you wouldn't mind and upload it. =) We've had quite a few people looking for a stage 3 map. Gluck to you. I'll be tuning my stage 2 + headers map tomorrow down in Atlanta on the dyno.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Who wants to get tuned the 20 and/or 21||renosubby||Bay Area Impreza Club Forum -- BAIC||0||10-14-2007 04:31 PM|
|Who attened the Redhook and/or KTR dyno day meets?||REDrum||New England Impreza Club Forum -- NESIC||10||12-13-2006 11:31 PM|
|OK..who was tuning the UTEC on their WRB WRX at West Beach Park in Windermere area||WhiteWRXBoy||South East Region Forum||1||03-02-2004 12:24 PM|
|Anyplace in So-cal to dyno-tune my Utec?||alltractionWRX||Southern California Impreza Club Forum -- SCIC||3||01-20-2003 02:45 AM|
|Anyone able to dyno tune unichip 7-28 or 7-29?||Onederer||Southern California Impreza Club Forum -- SCIC||2||07-27-2002 10:43 PM|