[Shop-talk] Of mice and...Jeeps!

[John Miller]

> That's about right.  Subaru had some really funky carbs.
>> Honda has engine management down so well, my 2006 Acura RSX doesn't even
>> have an EGR valve :) No pollution controls on the thing other than the
>> cat'. Makes for a nice clean engine compartment; 200HP from 122 cubes
>> is cool, as is 11:1 compression on pump gas. In fact, it has the fewest
>> smog devices of any car I've ever owned, and that's going back to a 1973
>> Olds Cutlass.
> 
> It's got oxygen sensors.  It's got EVAP stuff.  And it's got that computer.

Yeah, depends on what you consider a 'smog device'.  I can't think of 
any car I've seen that's got VVT that's still got an external EGR valve 
- variable cam timing allows for ECU-driven 'internal EGR'.  In fact, 
that's how Ford cost-justified VVT on the Focus.

My E39 M5 has 11:1 static compression, but once again variable cam 
timing so the actual in-the-cylinder compression pressure at any given 
RPM and load can be diddled somewhat by the ECU.  The new Audi RS6 uses 
10.5:1 static CR on its 5-liter V10 - and twin turbos.

Is a low-permeabilty fuel hose or intake-tract rubber boot to meet evap 
standards (which are the tough ones to meet these days, apparently) a 
'smog device'?  How 'bout the charcoal filter under the air filter on 
current 5- and 6-series V8 Bimmers, once again for evap?  IIRC Steve 
Dinan says it's worth 10+HP on those cars just to remove the charcoal 
filter.

John.