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Old 05-31-2008, 05:34 AM
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FMG_V6_btb FMG_V6_btb is offline
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Join Date: Mar 2007
Location: Barcelona, SPAIN
Posts: 150
Hi all, sorry for the delay in write something in this thread.

The truth is that as I mentioned some posts ago, I’m very busy and have more things to do that I’m able to do (it’s said like that??). On the other hand I’m working in the design of the front subchassis and suspensions of the car on which the engine will be installed, and that takes me time to think about the engine.

I’ve read the discussion about why the “necessity of capacity”, it’s very simple: there is two ways to obtain power for a given engine (generally speaking): the first is increasing the mean effective pressure, and the second increasing the engine speed. In sport engines, where turbos or superchargers are forbidden by regulations, the only way to obtain power is increasing engine speeds and maximum attainable mean effective pressure by means of very well tuned camshafts, valves, intake & exhaust system, EFI, etc…, but a car with an engine like this (Alfa 156 Silhouette sport car for example) will not be suitable for normal use among city traffic.

Turbochargers or superchargers is the solution to attain the desirable level of power in capacity limited engines, without renouncing use the car every day to step through the city.

Turbochargers are typically more efficient, that’s why I want to use a pair of them in my project, the problem with turbos is the lack of power a very low engine speed, that’s the reason to increase the engine capacity to the maximum reasonably possible.

Thanks all… and keep posting!
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- '93 164 QV Rosso
- '02 156 2.5 Rosso
- '08 FMG 3.8 Project
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