Tue, 5 May 1998 15:01:27 +0100
- Message No. 2825
From: Jorge Pereira
Subject: RE: Catalysator, performance, blah, blah, blah...
Hi guys
This answer is to George:
When a engine is developed to use catalysator, the engine has no less power, because there isn't the same engine without cat. Less power than what?
Of course if you insert a cat in engines not developed for that, it will loose power. A catalysator is a device inserted in the exhaust pipe so, is an obstacle to the gases.
If Honda develop a new engine , imagine with 80 Hp, with catalysator I assure you it will be more performant than the actual one.
If you use 98 RON unleaded fuel on your bike it will not be less performant than using leaded 98. The energy (poder calorifico - em inglês???) available on both fuels is the same. Please, don't use too much your imagination and don't say that your bike has more power with leaded fuel.
when the combustion of leaded fuel the reaction products are:
H2O, CO, CO2 and PbOx and some residuals more
if you use Unleaded fuel, the reaction products of the combustion will be:
H2O, CO, CO2 and some residuals more
as you can see, unleaded fuel without cat DOES NOT pollute more than leaded fuel. Who says this doesn't know what is speaking.
Greetings from Portugal
Jorge Pereira
----------
From: gmitropoulos@pnc.co.uk
Sent: Terça-feira, 5 de Maio de 1998 10:05
To: xrv@normans.isd.uni-stuttgart.de
Subject: (XRV) Catalysator, performance, blah, blah, blah...
Hi guys,
I got lots of responses re: catalysator and performance...
Most of you think that the use of a cat does not affect performance at all.
My question is how come two cars with the same engines do have a difference
in horsepower when one of them runs with a cat and unleaded fuel?
On the other hand it might be the fuel that makes the difference. Companies
recommend unleaded fuel to show an environmental-friendly image. As a
matter of fact it has been underlined (MOTO Magazine, Greece - Article on
researching fuels) that the use of unleaded fuel without a catalysator is
much worse for the environment than using super (or 4*). Some engineers
also reckon that engines without a cat run much much better on super fuel
(and better performance), no matter the "unleaded" sticker on the top of
your tank.
Anybody who has proffessional experience or scientific knowledge, please
give us your lights...
George

dipper@normans.isd.uni-stuttgart.de