BLP Main body BX4

[BradH]

Re Tuner's reference to NACA TR 49: https://www.abbottaerospace.com/downloa ... rburetors/ That's one I've downloaded today after seeing Tuner's comments, so I don't know the contents at this time.

Also, two air bleed / emulsion research papers from Japanese research efforts in the '60s which I've found helpful. I know the first one was also referenced by Tuner in another thread somewhere years ago:

"Effects of Air-Bleed Systems on Carburettor Performance"
Yasuke ASANO, Toshitaka CHUMA, Heiichiro HAGA, Tadahiro MOCHIDA
Overview: https://www.jstage.jst.go.jp/article/js ... 1/_article
Download: https://www.jstage.jst.go.jp/article/js ... f/-char/en

It turns out there is also a "sequel" of sort, although I haven't found a copy that's been translated into English. Even though it's still in Japanese, I have figured out most of - possibly all - the key diagrams, but haven’t documented it anywhere at this point.

"Effects of Multihole Air-Bleed Systems on Carburettor Performance"
Yasuke ASANO, Ichiro ISOBE
Overview: https://www.jstage.jst.go.jp/article/ki ... 6/_article
Download: https://www.jstage.jst.go.jp/article/ki ... f/-char/en >> IN JAPANESE <<

I suspect people look at the publication dates of these and jump to the conclusion that they're no longer relevant. However, IIRC, the laws of physics and behavior of air & fluid flow haven't changed with the calendar, only the ease in which the data can be captured and analyzed.

[Robban 54]

I have read and printed almost everything that Tuner and others have written about carburetors and ignition systems.
So what happened to the carburetor was about what I expected.
I wanted to try because I thought it was nice and it's fun to work with the car.
Now I have even more to read.
I will try to make it work as well as possible even if I think it is too big for my engine.
SBC 383. Otherwise I put back the Pro Systems 950 HP.
Robban

[Bob M]

I would expect BLP to have this knowledge and let the customer know whats best for his combination. Silly me.

[treyrags]

I would expect BLP to have this knowledge and let the customer know whats best for his combination. Silly me.

I'm sure they do. Some people have a hard time taking advice when they a pre conceived idea......