Audi A2 1.4 TDI power beast

[Vekke]

I write short description also here what is going on with this car in my garage. Target fuel consumption for this car is 3 l/100km @ 100 km/h speed. Car is pretty close already as you can see from the calculation at the end.

- It has 1.4 TDI 90 hp versio, but I have tuned it to 130 HP with my own ecu program.
- I have changed 6 speed MYP gearbox
- Installed grill block
- Installed Tunecover hubcaps
- Optimised engine torsion value

https://ecomodder.com/forum/tool-aer...ToStep=5-200-5

3 liter consumption target was reached long time ago. Been shooting for 2 liters consumption at 100 km/h speed for little while.

Main ingredients to get there:
- drop the drag coefficient to 0,20 area
- Hint less frontal area with smaller mirrors
- 135/80R15 tires
- Maybe even taller 0A8 gearbox than the current MYP I have been running many years.

Those should be enough to get to 2,0l/100km but why stop there as you still see big possible improvements.

Currently designing engine overhaul in the sense of custom engine.

At the moment plan is to use 1.2tdi any/ayz alu block
~76.5 custom steel pistons
1.4tdi crankshaft
Custom conrods
Gappless second rings
Air ported 1st piston rings
thinner piston rings overall
air to water intercooler
Custom 0w-25 motor oils, these are tested first with the old engine.

What this should do is to drop the consumption from 2 -->1,7 liter levels thats 138 MPG us. so 15% improvement not too shabby

[teoman]

Veru cool project again.

What did you do with the tune?

[euromodder]

Originally Posted by Vekke

I write short description also here what is going on with this car in my garage.

I'm surprised you can do all those modifications, like with the Lupo.

With yearly inspections here, any real mod would need to be removable, and need to be removed / reinstalled every year

[cRiPpLe_rOoStEr]

IIRC he's an engineer, so it's easier for him to go through the certification process for such mods.

[euromodder]

No way you could get these on the road here, even as an automotive engineer.

[teoman]

What software do you ise for tuning. I plan on getting a vagcom but the logging speed is not the greatest. It is approx 1.5 secs.

Also i cannot change the parameters with vagcom.

[skyking]

wish we had those state-side.

[cRiPpLe_rOoStEr]

Originally Posted by skyking

wish we had those state-side.

It's time to pray for some of them not to be sent to a scrapyard, so when they turn 25y.o. you'd be able to import one

[Daox]

Very impressive as usual Vekke.

[Vekke]

For the ecu edc 15 I have vag edc suite:
- put max boost to all injection levels, meaning I have driven sweeps for all injection levels and rpm range, takes really long time. Aka the full map is redone to much more leaner. First I tested is more boost better or worse and more boost is more efficienct.
- same sweeps for injection advance
- same sweeps for engine torsion value aka cam timing

For the test there was a test ecu program that inject same amount of fuel when pedal is floored. Then I had test distance where I measured time for that distance and also marked highest and lowest speeds. Test was done to both directions and summed together. This test method has proved to be quite good and reliable for testing even smallest differences like aero mods or changing tires etc.

For monitoring parameters I am using ross tech VAG com cable