Anybody try B-type cowl vent on legacy yet?

[scotttro]

There was some talk last year about trying B-type outlet vents on legacy cowls, and even some hope that it would improve climb CHT's, but I can't recall seeing any completions. I'm coming up on that point myself, thought it might be a worthwhile mod. Would it even be wise to try, given the (slight) difference in cowl geometry?

[flyguyeddy]

Didnt sonex have them for an exhaust outlet on one of their factory planes?

[Area 51%]

Paul LaRue (Paul's Sonex 1509 in the photo album) has them I believe.

[scotttro]

Well, they're "experimental" aircraft, after all, so I pulled the trigger and ordered a set from Sonex. Anything that'll improve cooling is important to me. I live in a fairly warm part of the country - California's central valley - and I'm building the turbo Aerovee, so heat dissipation's a significant concern. I'll save the cut-out panels, though, in case it's necessary to go back to the "stock" approach! It's only fiberglass.