Re: blown turbo
I'm not sure its that much bigger LTG.. I'm sure the extra power in the 20V is gained mostly by maintaining torque closer to peak levels through the range better, due to the efficiences of multi-point injection.. Shouldn't need much more boost for the engine to do this, just a better fuel burn, which is achieved due to the fuel being injected in stages instead of dumped in one hit.
I'd ideally like a turbo that is capable of a reliable 250-270bhp, seen as its going to need a new turbo it may as well be a big step up rather than a little one. I'll definitely look into the 20V unit though, you may be right and it is a lot bigger.
But I will probably have to change the exhaust system anyway as mine is still standard. I want rid of the cat, and a decent backbox on, and a nice sound, so that means pretty much everything except manifold! If the ideal turbo comes up, but means I need a custom manifold, at least I can get a good free flowing S/S one, and have a full system made up in the same diameter as the exit from the turbo (3" I'd guess?)
I've heard you can swap for 159 injectors for extra fuel flow if necessary.
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