Yeah K3vo, I don't think I agree with you on this one. The injection method and .3 less liters of displacement is all that is significantly different between the two setups. We already know that DI is 10-15% more efficient than the IDI, thus being able to produce more power with the same amount of given fuel. The energy from the combustion is not being wasted as heat, and is being used up.
There isn't much else different between an IDI Vw, and an early DI Vw engine.. 8V, Wastegated turbo's, VE rotary pumps
So basically if the Tdi spooled this turbo practically off idle and was making max boost and power at 1900rpms, I don't see why the free intake, no exhaust, and shorter intercooler piping won't make up for the .3 less liters.. Also you have to remember there is 10-15% more wasted energy (heat) going through the turbo now due to the less efficient combustion, which means the turbo should spool even better
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I think I will be able to get max torque output around 1900-2000rpms no problemo.
1. quicker revving engine to get the turbo spooled
2. i'll be running more boost than the 13psi of the stock tdi
3. WAY more fuel than the tdi pumped in. Governor mod will allow me to have the maximum fueling ability of this injection pump as soon as the boost is on. (Yes it is a 9mm pump compared to a 10mm pump.. I think I have read a done up 9mm is still above a stock 10mm)
4. more energy from that fuel will be lost to heat and thus spooling the turbo
5. short free CAI
6. no exhaust. Just the downpipe.
7. short IC piping, literally if things go to plan it will be about 2 ft total.