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Anyone done the rebuild of a 2000 engine according to the instructions of the latest edition of Jim's book? What is the result? Is the car still street drivable? Any dyno plots?
 

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We did an engine to the specs in the first edition of the book (in a 105 2.0L)and it was good - everything that it was claimed to be in fact.

Very street drivable, so long as you are willing to work the gears and keep it above 2500rpm (but hey, its an Alfa - that's why they give you the gears in the first place!).

Nice torque round 4000 and power right up to 6500 (can rev harder, but not much point).

Dyno wise, its often unsafe to compare unless you know the calibration is consistent, but for what its worth it had about 180bhp at 6500, which I think is consistent with the claims made. That's pretty good really. As a comparison, a 3.0L V6 has about 180 to 190bhp standard (depending on spec), with a lot more torque obviously (but a 105 weighs a lot less too).

This seems to be about the practical limit for a street engine, give or take 5bhp.

Even full race is not a lot more considing the downsides in driveability and longevity (somewhere in the high 190's is one the money I think, although there are claims for over 200, but that is a big ask given the limits on flow potential in the 8 valve 4 plug head - not impossible of course, but everything would have to be spot on).
 
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