RALLInspired
06-29-2011, 10:43 PM
http://i1182.photobucket.com/albums/x451/RALLInspired/Dyno%20graphs/EvoTinoBalentine2003Evo8Finalflash2e85boosthex.png
http://i1182.photobucket.com/albums/x451/RALLInspired/Dyno%20graphs/EvoTinoBalentine2003Evo8Finalflash2e85tq-hphex.png
Built 2.0
Kelford 272
Supertech dual springs
RRE 3076 kit
RRE piping
RRE intercooler
RRE rally cat
RRE intake
2.75 helix DP
BR cat-back
BR fuel rail
255 walbroÂ* (swapped out the 300 deatchwerks because of a voltage issue)
PTE1200cc
ACT 3200 clutch
Omni 4 bar
GM 3 port
This car was previously tuned by Scot Gray but was brought to me during my first San Diego trip because of a lean issue the owner was experiencing.Â* At exactly 6000 RPM the car would start running lean no matter what the boost level was tapered too.Â* There was also an odd front o2 voltage issue i noticed.Â* I was able to tune this car 2 months ago and make more torque with a different boost profile but i was unable to complete solve the issue.Â* Fast forward to two days ago i recieved a call from the owner stating he rewired the front o2 which was being powered from the ZT-2 he had and was not running off of ECU voltage again.Â* Upon our first dyno pull the front o2 voltage was where it should have been however there was still the lean issue.Â* Pull after pull i added fuel just as i did 2 months ago even to the point of maxing out fuel in the ROM... nothing worked.Â* Injector duty cycles were not maxing out which also threw me off.Â* After thinking about it for a few moments i decided to have the the "300 lph" deatchwerks fuel pump swapped out for the walbro 255.Â* At 14.7 volts the DW pump is supposed to run @ 300lph but evos do not run that voltage contantly and especially at WOT.Â* After the fuel pump swap voila!Â* Fueling ran pig rich.Â* After cranking the boost up to 33psi holding 29 by redline were ended up with the above results.Â*
Another good day with my friends @ RRE.
Rick B.
http://i1182.photobucket.com/albums/x451/RALLInspired/Dyno%20graphs/EvoTinoBalentine2003Evo8Finalflash2e85tq-hphex.png
Built 2.0
Kelford 272
Supertech dual springs
RRE 3076 kit
RRE piping
RRE intercooler
RRE rally cat
RRE intake
2.75 helix DP
BR cat-back
BR fuel rail
255 walbroÂ* (swapped out the 300 deatchwerks because of a voltage issue)
PTE1200cc
ACT 3200 clutch
Omni 4 bar
GM 3 port
This car was previously tuned by Scot Gray but was brought to me during my first San Diego trip because of a lean issue the owner was experiencing.Â* At exactly 6000 RPM the car would start running lean no matter what the boost level was tapered too.Â* There was also an odd front o2 voltage issue i noticed.Â* I was able to tune this car 2 months ago and make more torque with a different boost profile but i was unable to complete solve the issue.Â* Fast forward to two days ago i recieved a call from the owner stating he rewired the front o2 which was being powered from the ZT-2 he had and was not running off of ECU voltage again.Â* Upon our first dyno pull the front o2 voltage was where it should have been however there was still the lean issue.Â* Pull after pull i added fuel just as i did 2 months ago even to the point of maxing out fuel in the ROM... nothing worked.Â* Injector duty cycles were not maxing out which also threw me off.Â* After thinking about it for a few moments i decided to have the the "300 lph" deatchwerks fuel pump swapped out for the walbro 255.Â* At 14.7 volts the DW pump is supposed to run @ 300lph but evos do not run that voltage contantly and especially at WOT.Â* After the fuel pump swap voila!Â* Fueling ran pig rich.Â* After cranking the boost up to 33psi holding 29 by redline were ended up with the above results.Â*
Another good day with my friends @ RRE.
Rick B.