Our own 1200rallycar twin-turbo'd an A15 to make the world's first A15ETT. It has a 46% power boost on stock internals.
Results
A15 Before
52.3 kw (70.1 hp)
stock apart from a mild cam, 32/36 cam and extractors. The torque curve tells the classic A15 story pretty well- feels strong from very low revs but runs out of breath over 5000-5500rpm. |
A15ETT After
75.6 kw (101.4 hp)
The HP is up about 46% more than the previous slightly mildly modified A15. However, torque is up a whopping 132% -- no wonder it feels so fast -- it is fast.