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Old 04-28-2008, 03:00 AM   #15 (permalink)
ami8i
EcoModding Lurker
 
Join Date: Dec 2007
Location: Austria/EU
Posts: 10

Summer toy - '71 ??? yes Ami8i Break en plein air

Hoppelpopp - '02 Fiat Palio 1.2 8V Weekend
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Hello,
I'm rather intersted in DIY EGR tuning. None of my cars has got OEM EGR, so I collected some OEM EGR parts (Suzuki Swift, Daihatsu Charade). One day I'll weld in such a 'bypass'. The valve is feed by a vaccum switch typically.

A stupid 'controller' would just switch on/off (just for testing) in passengers cabin.
A more practible way would be to provide a PWM depending on load and rpm (and engien temperature).
I picked up also a Swift ECU which should do this. Should be enough for starting. At least I'll see under which circumstances engine runs leaner (less butterfly pressure losses in manifold) - when I dissable EGR from passengers cabin.
I see no disadvantage in bad exhaust - maybe sporty drivebility suffers - but that's not the main goal for eco modders, isnn't it?

»Horst
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Fiat Palio 1.2 8V Weekend, 2003
Citroen Ami8i Break, 1972
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