Re: Factory carbs swapped for single Mikuni ???

Posted by Hoosier Daddy on Dec 02, 2012; 10:12pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Factory-carbs-swapped-for-single-Mikuni-tp3199392p4033014.html

Lucky 1 wrote

The bottom photo of the intake manifold would work but the end of the large tube
must be smaller opposite of the end where the carb mounts.

It needs to be a divergent duct, to increase the velocity of the
 air for the cylinder farthest away from the carb.

Look at the similar ones created by the large car companies.

Both ends of the tube would be closed and the carb centered, on the rear, acting as a plenum...that should help ensure flow to each the short runners is equalized. If you notice, the individual runners are angle towards the center. Thats why I chose that pic, so you could see the inards... but you are right Lucky 1, tapered down to both ends would be ideal.

shinyribs wrote

Hoosier,if I took the time to fab up that manifold I'd be tempted to hang a turbo somewhere

Now yer talkin... there is, after all, a method to our madness.