So we got the car working on the E Greddy piggy bag. Did not solve the RPM even after a firmware upgrade. Just start tuning on half the RPM and that went well as well.
Before we start on the car we did some homework evaluating the engine data with the Suzuki TECH2 system giving us data about engine injector duration en ignition timing and a lot more.
Here are some facts that will be hard to get if you not have all the ECU data.
The stock ECU is not mapped to run under boost and also the MAF sensor runs out of measurement very fast.
The MAP sensor can measure until 125Kpa absolute.
Max injection time is 11milisec and 12milisec max with throttle pump effect.
Ignition timing will be 30 degrees advanced for max load.
Load indication given by the ECU will be 98% under boost indicating that the ECU is at his max.
Power output of the sage trubokit.
Boost comes up at 3000Rpm and the boost was set at 0.5bar. The power comes on from 4000Rpm on wards. The set runs a bit like most of the TD-4 turbo’s. Lagy on low RPM. I think this will be better on a 1.5L engine.
Estimated Hp between 140 and 150.
E Greddy piggy bag.
Works well with the ignition timing and the additional injector map extending the injector time.
If you like everyday tuning this piggy bag this is your thing or get a mapping for every type of whether and load this up before you drive.
They forgot to get a fuel correction map in for air inlet temp and you will need a fuel trim map of 15% or more for running all seasons.
Running the additional injector map on only a MAP sensor is more like a joke to me. Running lean when it’s cold an over fuelling the engine when worm.
We used the settings that came with the sage turbo-kit and we had to ad 7% more fuel to get the AFR correct. According to the molier diagram they did the adjustment with 40 degrees centigrade intake air temp and we run 20 degrees.
Combination E greddy and the stock ECU.
This combination and 300cc injectors will give 11:1AFR on low RPM even when you give max correction on the airflow map over fuelling the engine and giving poor engine performance.
On boost on to the redline engine performance looks OK.
The stock o2 sensor seems to have a wide range and is able to correct the AFR off boost.
To bad the stock ECU has a small range on the MAP and MAF sensors to deal with more power and the E Greddy has no air temp correction on the injector mapping preventing you from running a more ideal and save AFR and ignition mapping.
A standalone unit will give you these options al do the stock ECU is still needed for communication with various other things like the dashboard.
I think they will put it on the dyno and after that we will have a go with an Adaptronic ECU.
We already did our home work and the engine response to fuel en ignition looks the same as the G13B.
I think this turbo kit is good fun for the money spent al do I prefer to use a standalone ECU on this car.
