Just a quick post on why as a head porter I like solid aluminum spacers over two inch ones.

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pittsburghracer

pittsburghracer

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Here’s some pictures of a two inch spacer on a Victor340 intake. As you can see the two inch spacer is an H design. The flanges are 1/2 inch and the middle is approximately .130 so when I know that’s what’s going on the intake I’m porting I have to be very careful not to make the carb opening any bigger. As it is I still have to remove .125 in several areas to just match up the spacer to the intake. Then that .125 has to be blended in before I get to the .130 in the middle of the spacer. That leaves zero room for plenum shaping. Just something else to think about. Will it work??? Heck ya but it just places a few limits.



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My super sucker light weight spacers probably only have enough material to remove CNC step over and that's it.
 
pittsburghracer said:
Here’s some pictures of a two inch spacer on a Victor340 intake. As you can see the two inch spacer is an H design. The flanges are 1/2 inch and the middle is approximately .130 so when I know that’s what’s going on the intake I’m porting I have to be very careful not to make the carb opening any bigger. As it is I still have to remove .125 in several areas to just match up the spacer to the intake. Then that .125 has to be blended in before I get to the .130 in the middle of the spacer. That leaves zero room for plenum shaping. Just something else to think about. Will it work??? Heck ya but it just places a few limits.



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Is that your finish in the plenum?
That's a great atomizer
 
MOPARMAGA said:
Is that your finish in the plenum?
That's a great atomizer
Click to expand...

Yes I leave a bur finish as it in known to perform better. It’s not as pretty as a sanded finish but if I had to sand finish everything I ported I would have to quadruple my prices closer to what Wilson charges. My stuff goes on even a little rougher but I can’t send it out the door that crude. Lol
 
Well I’m not happy with those numbers as as they max out at 292cfm. That’s down 16 stacked up against a ported Super Victor. I’ll sleep on it but I already know where I’m heading to rework tomorrow. With this spacer I can only take what it will give. Spacer right now didn’t help or hurt as expected.
 
Love your work John. :thumbsup:

As a complete novice on intake porting, what would happen if you shortened the dividers a bit.
 
OldmanRick said:
Love your work John. :thumbsup:

As a complete novice on intake porting, what would happen if you shortened the dividers a bit.
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If I have a head say flowing 310cfm. If I can get it within say 6-10 cfm with a ported intake on it if feel I did a great job and that mod isn’t needed. On my Indy 360-1 intake I’m pretty sure I did slightly shorten the divider. ( I’d have to look as it’s been awhile). Remember engineers designed these intakes so my job isn’t to redesign it. Just work within their parameters. No matter what you aren’t going to get the same flow as the head. I test the inner ports because if I can get those to work the others are a cakewalk.
 
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