Hello Ian (Hedge) - A familiar face!
Umm, where to start on the car.
Well, the hybrid turbo firstly. I know very little about it, but essentially I know it came off a bigger TDI, very likely a V6, then the internals were fiddled with to be stronger and flow more air at a given boost pressure. Basically it's "bigger and better"
Water methanol is a new thing for me, and still needs setting up properly. But what it does is act as a boost cooler, whilst at the same time providing more fuel in the form of methanol. The water acts as a cooler for the boosted air = more dense/cooler so more oxygen = more power. So the boost can be wound up a bit more without hurting EGTs and melting the turbo. The methanol provides more fuel to make use of the extra air. All in all, it just helps the combustion whilst giving good, strong, reliable power without sacrificing reliability. It is also progressive and cuts in at 0.7 bar and is regulated up to full injection (3 gallons per hour) at max boost around 2 bar. My new map will be around 2.2 bar, around 32psi!
I can't wait.
Oh, and to annoy anyone who hates their fuel economy, the car still returns 50 mpg under normal driving. (not using full power)
