Author Topic: Cut down plenum divider (Read 3455 times)

KMcCullah · « **on:** January 11, 2013, 08:54:14 PM »

I was kicking thru the graphs in the dyno section and found one where Jay built a 492 with a modified Blue Thunder dual plane intake with a removable divider. The HP gain was notable.
Question for Jay: Can you post the associated graph showing the torque curves?
Question for everybody: Has this mod ever been tried with a Performer RPM with a smaller FE on a dyno?

jayb · « **Reply #1 on:** January 12, 2013, 03:44:17 PM »

Sorry for the delay, it took me a while to dig out this data (from 2005):

KMcCullah · « **Reply #2 on:** January 12, 2013, 04:51:19 PM »

Thank you Jay! Wow, I was expecting to see a compromise in torque but in this case, the opposite. I hope you do some similar dyno tests when you get your intake and adaptor package running.

hotrodfeguy · « **Reply #3 on:** January 14, 2013, 09:07:37 PM »

That was some interesting data, Thanks Jay. I also was wondering about tricks to the RPM. And how far the RPM could be tricked out to.

jayb · « **Reply #4 on:** January 14, 2013, 09:17:08 PM »

On my supercharged engine that made 1030 HP, the RPM manifold ports were enlarged to match the CNC ported heads, but no further work was done to it. The RPM is a really, really good manifold just as it is...

fe66comet · « **Reply #5 on:** January 15, 2013, 11:26:05 AM »

Hopefully my air gap duel quad RPM will give me similar results. Not sure how much to loose if any or just use a spacer.

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Author Topic: Cut down plenum divider (Read 3455 times)

KMcCullah

Cut down plenum divider

jayb

Re: Cut down plenum divider

KMcCullah

Re: Cut down plenum divider

hotrodfeguy

Re: Cut down plenum divider

jayb

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fe66comet

Re: Cut down plenum divider