Intake porting/blending
I can take the block along too if the porter wants. Is this really gonna make a noticeable difference in hp and tq? Is the cost worth the gain? Also I’m not trying to extract every last hp or tq out of this engine. Kim
It will show a power improvement but against the cost? Maybe not so much, BUT.... what will appear (even more so if you run it before and after is...) a better running engine. The fuel will not have an interrupted path to puddle on and run down like rain off of your roof.
The fuel will atomize better. It will be smoother.
12many laid out a good plan of attack IMO.
The only thing I would add in is that when the grinding comes to the wall dividers, I would not take any divider away. If I could add more of a wall divider via the grinding away of the intake, I would do that with rounded edges of the wall dividers.
Conturing the roof of the intakes runners is a slow slope upwards to meet the vertical portion of the intake. How high up is good, IDK. I’m not sure of what is in my head is good or bad. So at this point, I would be searching pictures on the web of what the “Pro’s” did. Speaking of which, how is this for an idea. Call Wilson Manifolds or someone of the like and simply ask how far is it OK to grind the roof of the runner upwards? Is to the adapter OK or just simply contour the runner with a minimal or modest height gain better?
Also, food for thought, look at other race intakes for other makes and see how there casting are and find pictures of those ported.
Good luck with this project Kim. I’ll be looking forward to the work and results. Even though your thinking the heads may not be enough to feed the engine, it will count on every RPM up to that point where the intake track does become the restriction. So the better it is up to that point the better! Might as well make it kick *** until it can’t.
