Jeff_Lorentzen@adventure.com wrote:
>     Thanks for the reply, it's nice to hear from someone who actually has 
>     one. This sounds like their more expensive closed loop system. Do you 
>     have the cat. converter?

No I don't. 
>     
>     My 1776cc is a type 1, I forget whether a 71 bus is Type 1 engine or 
>     Type 4. If type 1, did you have to modify the heads for a temp sensor? 
>     Any other engine mods or was it basically bolt on plus wiring and 
>     running fuel lines?
>     
	
'71 is the last upright in a bus. I had to drill and tap the head for a temp 
sensor -- next to the #4 exhaust so that the sensor is in the valve galley -- 
near the #4 exhaust valve spring. 

Basically bolt-in. Biggest issues are where/how to mount things and where to 
return fuel. 

	Fuel return - My first try at return was the defunct fuel vent -- bad move -- 
pressure build up cause gas tank leak. 		I now have it mounted in filler neck 
and restored the vent system.
	ECU - Under seat storage area.
	MAP sensor - on fan housing
	Fuel Pump - in engine compartment on l/h side with clamps.

>     The new supply line is 1/2", is that ID or OD? Is the return line also 
>     1/2"?
>     

ID -- it's a big mother -- it goes into an in-line fuel pump ~1.5" diam. x 6 " 
long. the outlet is 1/4" that runs to 3 & 	4 injectors then to 1 & 2 
injectors, then to a pressure regulator and finally returns to tank.

>     I'm not that familiar with busses, is that mileage less, about the 
>     same, or more than stock?
>

Better than the Kadron's that I was using -- 14-15 city, 17-18 highway -- 
remember that this is an 1835 and a heavy camper (~3500 lbs) -- plus I pass 
smog. I used to have to retrofit my old PICT to barely pass.
 
>     Were the 48mm the only ones offered when you got it or did you chose 
>     them over the 40mm? Do the 48's seem about right for the engine or are 
>     they overkill for that size?
>     

There all that were offered in duals. They do have a single center mount 
throttle body -- don't know what size -- but I was told that what I have would 
run best on my engine.

-Scott
'71 Westy, the Wayback Machine
http://coyote.accessnv.com/wayback