05-06-2015, 10:29 AM
Hi there
Already back in 2007 or so I converted the car for the first time to E85. By then I tried to "tune" by using an Apexi PB, which let the car run, but not work as I would have wanted. Already then I saw significant gains due to the higher octan rate, the better cooling of the combustion chamber as well as maybe an effect of making more exhaust...
2008 I then tried the SC...
both is already in the forum here.
As the officials made it a real pain with the SC and some things were not the way I wanted them to be, I went back to NA.
The setup I have right now makes me feel for the first time the power curve has no dips, good torque, a real kick at above 3700 and performance to the limiter... wrote about airbox, header, 100-cell-cat, CB.
I now converted again to E85.
I use the bigger injectors of the SC-kit (48 vs 32) an etune to make it "flex-fuel" by hand and an SMT2, both by Vitesse-racing / Perfect-Power. While the Etune alters or lowers directly the injection time and therefore the fueling, the SMT2 alters or lowers the MAF singal, which also, but indirectly influences the fueling... but ignition also. The Etune has a poty to regulate the correction which can be mapped, the SMT" has a map-switch.
I can not post any dynos at this time as it is a work in progress. But the following can be said:
- Very good start even at low temperatures (a common pronlem on converted cars)
- Smooth running in normal driving
- good power and torque
- easy to tune... even for me as a Medical Doc
- some potential to be discovered
Here a short clip of the first tuning session. You can see the map of the SMT2 and some datas moving (the map was just the starter). I do the tuning with the stock Lambda-sond inactive, so it runs map only without any corrections. For the fueling (which is a bit ritch in the clip) I use a wideband Lambda-sond. To detect knocking i use a knock sensor...
https://www.youtube.com/watch?v=txxNW4CE6mU
Next steps are:
- playing around with this a bit
- maybe dyno it
- think about a ram-airbox
Have fun!
Kunz
Already back in 2007 or so I converted the car for the first time to E85. By then I tried to "tune" by using an Apexi PB, which let the car run, but not work as I would have wanted. Already then I saw significant gains due to the higher octan rate, the better cooling of the combustion chamber as well as maybe an effect of making more exhaust...
2008 I then tried the SC...
both is already in the forum here.
As the officials made it a real pain with the SC and some things were not the way I wanted them to be, I went back to NA.
The setup I have right now makes me feel for the first time the power curve has no dips, good torque, a real kick at above 3700 and performance to the limiter... wrote about airbox, header, 100-cell-cat, CB.
I now converted again to E85.
I use the bigger injectors of the SC-kit (48 vs 32) an etune to make it "flex-fuel" by hand and an SMT2, both by Vitesse-racing / Perfect-Power. While the Etune alters or lowers directly the injection time and therefore the fueling, the SMT2 alters or lowers the MAF singal, which also, but indirectly influences the fueling... but ignition also. The Etune has a poty to regulate the correction which can be mapped, the SMT" has a map-switch.
I can not post any dynos at this time as it is a work in progress. But the following can be said:
- Very good start even at low temperatures (a common pronlem on converted cars)
- Smooth running in normal driving
- good power and torque
- easy to tune... even for me as a Medical Doc
- some potential to be discovered
Here a short clip of the first tuning session. You can see the map of the SMT2 and some datas moving (the map was just the starter). I do the tuning with the stock Lambda-sond inactive, so it runs map only without any corrections. For the fueling (which is a bit ritch in the clip) I use a wideband Lambda-sond. To detect knocking i use a knock sensor...
https://www.youtube.com/watch?v=txxNW4CE6mU
Next steps are:
- playing around with this a bit
- maybe dyno it
- think about a ram-airbox
Have fun!
Kunz
