Zitat von McGregory

Ist denn im höheren Drehzahlbereich denn nicht mehr Power, da ja dann 2 statt nur ein Turbo läuft?

Zitat von aus UK-Forum

True Twin Conversion Observations
I tried the temporary TTC hose method this evening to finally get an idea what it was like running in parallel.

I have a few observations which I'd like to make and see how other people's experiences compare.

- Exhaust has lost its throaty off beat, 6 cylinder rhythm.
- Off boost it now sounds more like a crappy 4 cylinder engine with an exhaust that is way too big.
- It is very droney at cruising and part throttle openings. (Off boost)
- Exhaust sound on overrun is also a lot more flat, boomy and uninspiring.
- Generally exhaust volume is greater at all engine speeds when off boost than in sequential mode.
- Engine generally feels very lazy and a bit like a badly tuned low compression NA motor, (hardly suprising).
- No pull at all to speak of below 2000rpm.
- 0.25 bar of boost produced by 2800rpm in 4th.
- 0.5 bar of boost produced by 3200rpm approx in 4th.
- Max boost of up to 1.2 bar produced by approximately 4000 rpm in 4th.
- No change in top end performance as expected.
- Relatively smooth power curve now that the prespooling dip in the torque curve has been removed. However there is still a wall of torque created at 4000-4500 rpm creating that hard pull.
- It seems like the 3000-4000rpm range is now much more useable however in comparison to the amazing low down pull from 1600rpm (with seq), I'm not sure if that trade off is a worthy one. I am sure the area under the torque curve must be less in TTC than in seq setup. (Igoring some curves I have seen with a horrible boost spike causing a brief torque peak in TTC).
- Fast cornering is far far more easier and safer in TTC than in a decatted seq setup. Gradually feeding in power between 3000 and 4500rpm range is totally predictable with no risk of a 2nd turbo kick whilst putting the power on when approaching the exit of a bend.

Anybody care to comment on this at all. I know this has been discussed before and many people prefer TTC to Seq (especially when hybrids are used and 2nd turbo kick becomes more and more savage). Others would never sacrifice the Seq setup and some go for the switchable ETTC.

I'm going to leave it for a day or so and see how it goes. I can't see me keeping it though as there seems to be no straight line performance benefit at all. Anyone disagree with this? The only upside for me pesonally is the ability to corner on the throttle better.

Biggest loss is the lovely sound that has now been replaced with a lazy low compression slug like drone.