Hello guys,
I've been a long time lurker, but am a first time poster, simply because i didn't have any interesting content to post before.
Now we have a few interesting projects on the go, so hopefully I can share some of my learning with everyone here.
I'm going to split my first post into 2 parts,
1. Mods already completed
2. Mods currently underway ( 2L swap and build)
I'm from India and we only got the EA888 Gen3 Skoda Superb in the 1.8 TSI configuration ( I believe Golf GTI), paired with the DQ200 box which is known to **** itself at the slightest hint of torque.
After a few months of abuse with an IS20 turbo (stock is12) the gearbox started to show signs of giving up.
We swapped this box out for a DQ250 from a Skoda Octavia.
Parts needed were
1. Transmission
2. DQ 250 connector
3. Flywheel
4. Starter motor
5. Aux cooling pump and kya plumbing
6. Transmission Mount.
7. Shift linkage
8. Stub axles
After studying the wiring diagrams of both cars, we cut the stock connector and solder in the new one, in hind sight i would have liked to make a patch harness, but at the time I could not find a DQ200 male connector.
Once installed, ofcourse the car was not happy with me and threw a whole host of errors and refused to come out of neutral.
We connected ODIS and were able to adapt the immobilizer on the transmission to the car, and all seemed again.
Took the car out for a drive and everything went without incident.
Fast forward a few weeks , the IS20 now started feeling slow, and since we were no longer torque limited, why not swap out for an IS38?
IS38 turbo swap done and then onto a custom tuning session on the dyno, with the 2.0 TSI is38 as a benchmark.
Although the numbers were good, the torque and power loss due to the slightly lower displacement is quite significant, and something that irritated us.
We decided to think of the next step, and in the mean while drove the car as is, and added more parts, a full list is on the link below.
http://instagr.am/p/CLOhEfgAhjb/
Ofcourse after a few months, the itch for an upgrade bit again, and the next logical route was the 2.5L DAZA from an RS3.
Due to some issues in the import process and a few other issues we lost some money and the parts , and the dream of the DAZA will remain a dream for now...
What's the next best thing we can do?
It was obvious we had to go bigger, but how?
For the time being we decided to swap out the 1.8 tsi for a 2.0 tsi crate motor, the swap was relatively easy and cost approximately 9k GBP to do.
Parts needed
1. CHHA base engine
2. 2.0 TSI DI injectors
3. 2.0 TSI HPFP
4. All single time use gaskets etc as we were retaining the old thermostat, oil coolers, and all ancillaries.
The installation was relatively straight forward as half of the work had already been taken care of during the dq250 swap, ie the flywheel, transmission etc.
We had the old 1.8tsi out and the new 2.0 tsi, with all the old ancillaries in the same day.
Fired it up just to make sure, and it started. Great news!
We the decided what direction to take with the software side of things.
One was was to just tune the 1.8 and make up for the changes , but that would be crude and never perfect.
Also we wanted to run APR software, so that made it impossible....
Second way was to truly make the car believe it was no longer a 1.8 TSI Skoda Superb, rather a 2.0 tsi Skoda Superb.
We took te software number from a Skoda Octavia RS that we are familiar with and flashed the frf with ODIS.
Flash successful, all great!
WRONG!
While the flash was successful, the car refused to start, and was immobilisd.
Strange we thought, but tried to adapt immo line, however it then struck us what has happened.
The instrument Cluster and the Engine Ecu contain PowerClass data, it is imperative for both of these to match, on order for the car to work.
We ofcourse had the wrong data on the engine ECU, and hence no start.
Scratched our heads a bit and then remembered a question i had asked a long time ago to someone who make immo off solutions for the SIMOS18 ecus. They told me they can run the engine on a test bench, without any other modules connected, this got me thinking, surely there is a way to run with mismatched powerclass.
I opened the ecu and read the factory file in boot mode. A friend helped me "adapt" the immo in the ecu, so it would ignore the powerclass, but still be active so nobody can steal the car with a dodgy key.
Flashed this adapted file onto the ecu and viola we have the first and only Gen3 2.0 Superb running in the country.
We took it for a drive and instantly got crazy short term fuel trim.
While we had suspected the DI injectors would not be the same between 1.8 and 2.0, they were from the same Bosch family, so assumed it would work, however, rather than try again and depending on fuel trim and risking a brand new engine, we decided to order the correct injectors.
The 7 day wait for injectors seemed like months, but finally the new injectors were here and a quick swap later we were out for a test drive.
The car was totally transformed, i know it's hard to believe but what a difference those 180 odd cc can make, but believe me ,it's a lot!
Next was to put the IS38 turbo back on and flash the corresponding APR tune.
380 HP and 501 NM, not bad for a Skoda Superb
Ofcourse the thing with an itch is.... The more you scratch it, the bigger it gets, so we already have the next upgrade thought of, parts are in transit and should be a VERY interesting build, definitely the only one in my country, and probably under a hand full abroad as well, as when i was doing my research, nobody seemed to have all the answers to my questions
http://instagr.am/p/CdL7Ho9N_be/