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Title: ME7.9.10 tjet Post by: mdb on January 13, 2022, 05:20:42 AM Hi, i am tuning an Abarth Gpunto 180SS -Me7.9.10ecu -, with more engine modifications:
-racing cams, gtx2860, external wg, custom exaust 70mm, big fmic and air filter, 1000cc iniectors. I have a questione regarding iniectors: they are bosch 0280158040, and i having a trouble to set my KRKTE TEMIN and TVUB. I calculated a krkte of 0.02751, but car run poor and lean. Now, i am trying to setup idle @1500rpm (due to racing profile cams). I can't find TVUB and TEMIN, vendor of injectors doesn't have any tecnichal documentation... Can someon help me? Thanks in advance. Title: Re: ME7.9.10 tjet Post by: usabug on January 13, 2022, 05:24:30 AM 0280158040
http://nefariousmotorsports.com/forum/index.php?action=dlattach;topic=12470.0;attach=32364 Also , racing cams ? duration and lift on 1mm ? Title: Re: ME7.9.10 tjet Post by: mdb on January 13, 2022, 06:28:22 AM Many many many thanks ford your help and documentation!
Cams Spec in image attached. Title: Re: ME7.9.10 tjet Post by: usabug on January 13, 2022, 08:40:29 AM Those are not Racing Cams ... They just name them "Racing" .
Duration on Valve seat In:262° / Ex: 246° with LSA at 105° . Just put the idle at 900~950sal and increase the two first columns of kfmres/k from 2% to 4~4.5% and the idle will be steady . Title: Re: ME7.9.10 tjet Post by: mdb on January 13, 2022, 10:20:28 AM Many thanks, cams was bought from the customer. I am working on stage with correct TVUB . Idle setup at 1700rpm (only for test). Krkte 0.039.
Title: Re: ME7.9.10 tjet Post by: mdb on January 16, 2022, 10:49:10 AM Hi, then, a report.
i calculated my TVUB and (if i haven't done errors) V & msec 5.63 3.73 7.04 3 8.45 2.17 9.86 1.73 11.26 1.42 Now, i am having some trouble with KRKTE calculation, bosch documentation says injectors are 980cc @3bar, abarth tjet fuel pressure is 3.5bar, i ve found on google that these iniectors are capable of 1150cc @4bar, then i calculated KRTE for 1070cc @3.5bar...krkte is 0.0235. Now, starting the car is difficulty, then i set idle @1000rpm how you suggest, and increasing more KFMRES/K correction map. To start the car i've to press a little gas pedal, car don't reach idle and die...afr meter is rich....i am strugling |