Tuning for power, not economy! - Alfa Romeo Forum
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Location: Wombourne, UK
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156 2.0 Veloce

Tuning for power, not economy!

So I started thinking... engines for the BTCC are limited to 2 litres, no turbo's etc, just good old tradiotnal tuning. So how do you get a 2 litre engine, normally producing 155 bhp (in it's current incarnation) to produce 250 - 300 bhp (I'm guessing here, since I can't find any power figures for the BTCC Alfa engine on the net!)??

Basically, it's the same block (it has to be I think - the rules?) but what goes on with the rest of it? Anyone got any ideas?
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Lots of expensive bits that allow the engine to rev higher, draw in and expell air more efficiently and mean an engine rebuild every couple of races.
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in addition to the usual sensible upratings (eg clutch, brakes, suspension, bottom end) head work, throttle bodies, cams, injectors etc will easily see 300bhp from a 2.0 16v.

If SBD can get 240bhp from a 1600 vauxhall engine, 300 from a 2.0 should be fine.

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They spent over 6 MILLION developing the 155
for the 1994 BTCC eek! .
So i guess if you're throwing that much dosh at the car, then 300bhp would easily be achieved
from a normally aspirated engine.

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economy , power , tuning

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