Subaru twin turbo flat spot
Discussion
hey everyone, I testdrove a '95 Subie legacy GT yesterday (2.0 twin turbo manual), very nice car, pretty quick too, nice handling, pretty much what you'd expect really.
Thing I was wondering about is this : It had a very obvious flat spot in the powerband at around 4000-4500 rpm (between the primary turbo running out of boost and the secondary spoling up), from what I've heard they all do this, does anyone know of a solution to this problem?
will a remap/rechip or anything short of a completely new turbo setup help?
just wondering as its the only thing I don't like in an otherwise excellent car.
Thing I was wondering about is this : It had a very obvious flat spot in the powerband at around 4000-4500 rpm (between the primary turbo running out of boost and the secondary spoling up), from what I've heard they all do this, does anyone know of a solution to this problem?
will a remap/rechip or anything short of a completely new turbo setup help?
just wondering as its the only thing I don't like in an otherwise excellent car.
If you are going through the rev range, there should be a pause at 4 while the second turbo kicks in, followed by it spooling up and going.
The catch is when you change up and the revs drop to 3500, you will have no power.. nada.. nothing.
Its a very complicated system and to be honest, does'nt work as well as it could.
I certainly have'nt found a solution yet. We are remapping mine soon and we will see if this solves the problem.
The catch is when you change up and the revs drop to 3500, you will have no power.. nada.. nothing.
Its a very complicated system and to be honest, does'nt work as well as it could.
I certainly have'nt found a solution yet. We are remapping mine soon and we will see if this solves the problem.
thanks for feedback guys, think i'm just gonna stick with the legacy I've got for now, thay way fuel prices are going round here (our govt just slapped another 5c per litre tax on, with another rise the same planned in a few months) I'm probably better off without a turbo. insurance would have been pretty darn expensive too.
GravelBen said:
thanks for feedback guys, think i'm just gonna stick with the legacy I've got for now, thay way fuel prices are going round here (our govt just slapped another 5c per litre tax on, with another rise the same planned in a few months) I'm probably better off without a turbo. insurance would have been pretty darn expensive too.
Hehe yeah petrol is getting expensive around here, althoguh cheap as chips compared to UK standards.... mind you our salaries aren't at UK levels either!
Those Twinturb Subarus (well any 2L+ jap turbo really) is going to be very thirsty.... my solution was to get the Elise... it's more economical than my 1.5L Mitsubishi Mirage! Needless to say, it's a lot more fun to drive
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