I am not familiar with the 110 AFN. Could you elaborate? I have a rebuilt 1Z engine with all the specs of the European version. Larger pistons with oil cooling vallies. I am not looking to change ECU just have it programmed. I can upgrade stock turbo by rebuilding it and I could gain 10-15 hp via boost. Also I had Bosio 502 Nozzles but one got snapped off when engine failed. So I am looking a new nozzles also. I don’t really wannas role coal unless I really get on it even then I’d like it properly set up. I do know how to advance or retard the pump and adjust fuel via VagCom
The 110hp AFN was the VNT turbo equipped version of the AHU, but we never got the AFN here in the states. It was their highest horsepower R4 8v 1.9L factory engine in the Mk3, B4 and early B5 platforms. The only interal changes that I'm aware of between the 90 and 110hp engines is in the sputter bearings on the crank, otherwise I believe they are built the same although don't quote me on that, I'd have to go and refresh my own memory on it.
You can easily achieve the 20hp difference between the two with a simple tuning change but you'll still be running a wastegate turbo. I believe my RC2 says it's at 118hp with factory AHU so you can expect more if you're doing more to increase performance, i.e. nozzles, turbo change etc and going with an aftermarket tune.
I had just thought you were doing the factory setup, that's why I mentioned the turbo and the ECU.
Steve