LD340 flow testing

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I’m going to post something here and I hope it doesn’t confuse more than it helps. When you port heads and an intake it’s good to think not of an intake being an intake, BUT as an extension of the runner. We are asking air to do some crazy things at times. Like making a hard left from the intake into a head runner into possibly a harder left in the head. Learn to study the intake runner as one runner at a time in relationship to each head runner. They aren’t all the same. Sometimes the harder you try to explain something the more you mess with someone’s head so I’ll stop and let you think on that. Grab a head, grab an intake and lay them on a table the way it would be assembled on an engine.
Thanks for the explanation
Could you bolt them together on the bench and run a snake camera down the carb flange the really get a sense of where the air is going?
Just spit balling
 
Thanks for the explanation
Could you bolt them together on the bench and run a snake camera down the carb flange the really get a sense of where the air is going?
Just spit balling


No carb really needed but you got the idea. Those cameras work great. Edit. You didn’t say down carb. Sorry.
 
THANK YOU. I always say you never want to make air turn a corner. If it has to, you need to radius to be as big as space allows.

Its not the air that's the issue its the fuel that's entrained with it.
 
I’m going to post something here and I hope it doesn’t confuse more than it helps. When you port heads and an intake it’s good to think not of an intake being an intake, BUT as an extension of the runner. We are asking air to do some crazy things at times. Like making a hard left from the intake into a head runner into possibly a harder left in the head. Learn to study the intake runner as one runner at a time in relationship to each head runner. They aren’t all the same. Sometimes the harder you try to explain something the more you mess with someone’s head so I’ll stop and let you think on that. Grab a head, grab an intake and lay them on a table the way it would be assembled on an engine.

I've always felt that when everything is BOLTED together, it's more of a "one piece" kinda thinking.
 
I've always felt that when everything is BOLTED together, it's more of a "one piece" kinda thinking.


I agree but if you are a head porter porting heads for guys not everyone want their intake ported so in your mind you have to approach every runner to where it is on an intake. I always say think about the next step before you start the one you are working on. Bigger isn’t always better. The hardest intake I ever ported was for a buddy that runs Small block Ford’s. First off a ford intake gasket match is nothing like any other because of how it bolts to the heads. I had him lay it out by bolting it onto his engine with dicome to determine where the gasket was going to end up. In his class I had to match and blend in the runner only being allowed 1/2-3/4 inches into the runner. It worked out great but probably not one I would do again. Especially for what I made on the job.
 
I agree but if you are a head porter porting heads for guys not everyone want their intake ported so in your mind you have to approach every runner to where it is on an intake. I always say think about the next step before you start the one you are working on. Bigger isn’t always better. The hardest intake I ever ported was for a buddy that runs Small block Ford’s. First off a ford intake gasket match is nothing like any other because of how it bolts to the heads. I had him lay it out by bolting it onto his engine with dicome to determine where the gasket was going to end up. In his class I had to match and blend in the runner only being allowed 1/2-3/4 inches into the runner. It worked out great but probably not one I would do again. Especially for what I made on the job.

PLUS, those ports are TINY as it is, giving you little room to work.
 
I’ll name one that does but doesn’t do it well. SUPER Victor small block Mopar intake. At least not out of the box.

The Super Victor is a single plane manifold with no real turns to make around any corners. Where would the fuel separate from the air flow as it negotiates a corner?

I haven't had a Super Victor in my hand to see how it differs from the normal Victor 340 but suspect that it may be too big. Add to that a large carb and you make it even worse. Case in point Qwkmopardan runs the normal Victor 340 on his 9 second 400+ cubes.

You should remember this.

https://board.moparts.org/ubbthreads/ubbthreads.php/topics/1352503.html
 
Have you checked the port alignment? Mine had a ton of core shift and took a lot of grinding align the ports.
YES surprisingly things line up pretty well , almost perfect ,guess i got a good one . i remember back in the day had a holley street dom that was garbage porous and nothing limed up
 
Had the airgap intake on my 360. It worked better than a ld4b that I had before. However, got curious to try the Victor 340 intake and wow! Car woke up. Throttle response was more instantaneous.
 
Had the airgap intake on my 360. It worked better than a ld4b that I had before. However, got curious to try the Victor 340 intake and wow! Car woke up. Throttle response was more instantaneous.
same here fully ported air gap , and the victor 340 lows it away everywhere , can't wait to try it with the mods Pitsburghracer suggested
 
Pittsburgh, Have you ever tried the Indy -1 intake ?


Yes I have one on my 360-1 Indy headed 422. I have another one modified that will be going on my Edelbrock headed 408. Very nice intake but like everything it needs a little LOVIN before being used.
 
Yes I have one on my 360-1 Indy headed 422. I have another one modified that will be going on my Edelbrock headed 408. Very nice intake but like everything it needs a little LOVIN before being used.


Does the bolt pattern on the Eddies line up with the -1 intake ?
 
931BB241-9C0E-447C-A826-7527B327230B.jpeg
158A4DB6-233B-445C-A4DD-408F9C34A1C7.jpeg
Does the bolt pattern on the Eddies line up with the -1 intake ?

No I redrilled the intake then found out that when I move the pushrod over I was into the Edelbrock intake bolt pattern. So my buddy and I plugged the Edelbrock pattern with aluminum bolts, milled the heads down and redrilled the Indy intake pattern on the Edelbrock heads. It would have been zero issues till I went with offset rockers.
 
Dang, late to the party. I got some catchin' up to do.
Me too:lol:
Need pictures of ported intakes!
:mob:
I got a few pictures.:rolleyes:

Victor 340, original fugly bulbous (leading edge) dividers:

2435F2BC-8B60-4D86-BA59-BA8E0D9CF3DC.jpeg


A divider thinned, mostly from the inside of the wall, a smidge from the outside, tapered/radiused, leading edge rounded similar to an airfoil:

50D07E2C-023D-4114-AA60-F89B0C0D117D.jpeg
 
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If you have room and can run a one inch spacer it gives you more room to shape the runner entrance.
 
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