Weber filters

[bobcowan]

Originally Posted by Caprimaniac

Mr. Blom (Hello Sweden, from Lillestrøm, Norway) .

Tea strainers come in various types. I choose the "new" type (at top of page) because they, from my point of view, will disturb the air stream around the rim of the air horns less than the other types.

But; Bobcowan. I wonder: you are running EFI?

Then I find it rather strange that your A/F ratio should be altered when putting tea strainers on. (Maybe because you run TPS and no MAP or MAF?)

You didn't do a dyno run (on the same dyno) with the Momar filters? Would be an interresting comparison with the other graphs. And the filters makes it richer. So then you do run another map with thes filters to lean out. OK. Well, as you said- the comparison should be done with a leaned out map on the tea strainers too, to be fair.

RuneS

Yes, it's EFI. It's an older system, so there's no MAF sensor. It can run on limited closed loop, with a narrow band sensor. But that doesn't seem to change anything, so I don't run a sensor.

I have run it on a dyno with open stacks and then Momar filters. You have to take out a fair amount of fuel with the filters, and you lose some HP. Not much, but some. Even with the filters on there's plenty of power.