Join Date: Jul 2006
Nominated 11 Times in 37 Posts
TOTW/F/M Award(s): 17
Thanked 2,471 Times in 1,852 Posts
Back in the late Eighties, there was a couple of ideas bounced around to reduce pollution;
Lean Burn and Catalytic Convertors.
The first principle involved the engine receiving very close to the stoichiometric amount of air to fuel ratio (around 14:1), the benefits were obvious - an efficient burn = maximum fuel economy + decent performance.
The second principle involved strapping an extra silencer & probe containing expensive and fragile rare metals to each exhaust, then setting the engine to run 'dirty' (i.e. rich - around 11.5:1 - this helps the cat warm up more quickly) - ironically leading to reduced performance, increased fuel consumption and higher CO2 emissions.
One of the craziest ideas ever carried through to fruition - it effectively wiped a decade's worth of engine development away at a stroke.
This job should never be complete - the day I think I've done it all, is the day I resign.
Currently in VelSatisfied's garage:
2005 FIAT Ducato 2.8JTD LWB Gran Volume, 2000 Kawasaki ZZR 1100 D7 'fullpower' in black + full GIVI & KAPPA luggage, 2007 MB R-Class 320 CDi Sport LWB uprated by Brabus to 300Bhp don't know if there's a 155mph limiter - will be fun finding out! 2004 Mercedes Vaneo 1.7 CDi Ambiente 7-seater