Modifying intake manifold.

3622 Views 7 Replies 4 Participants Last post by N56629, Jul 22, 2005

Boomin5POINT9

Discussion Starter · Jul 21, 2005

Isn't there some way of taking the stock beer barrel intake and welding in some channels inside to make it resemble an M-1?? I have a TIG and wanted to try. I figured if I make some channels that go directly into the ports it would work better than just being completely open and maybe give me some better top end, (which I lack badly). Anyone heard of this or done it?? Any suggestions?

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N56629

· #2 · Jul 21, 2005

Most people don't have that much trouble with the high end. What size tb are you running now?

As for the project, it seems that it would be just as easy to design and fab your own intake manifold. You could have dual quads, three duces, eight singles, etc..

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Five9Dak

· #3 · Jul 21, 2005

It would require many hours of fabrication due the way the runners in the stock manifold are designed. You are better off going to working a lil overtime and using the money for an m1 to save teh hassle. If you are interested in modifyed beer barrels, I did one for my dads jeep, click my sig pic to see it on my cardomain.

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Boomin5POINT9

Discussion Starter · #4 · Jul 21, 2005

Well i am taking it to the track this saturday and I wanted something quick to help a little with my top end. My Mopar PCM changes my shifts to 5200RPM and by that time it feels like I am way past my power band and i'm just reving. It feels like ive completely stopped accelerating until it shifts to the next gear then i feel the throw back again and it takes off. Any tips before saturday??

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N56629

· #5 · Jul 21, 2005

boominkota318 said:
Well i am taking it to the track this saturday and I wanted something quick to help a little with my top end. My Mopar PCM changes my shifts to 5200RPM and by that time it feels like I am way past my power band and i'm just reving. It feels like ive completely stopped accelerating until it shifts to the next gear then i feel the throw back again and it takes off. Any tips before saturday??

I asked you what you were running for a throttle body. I see that you have headers, but I see no indication that you have done anything to make it breath. Have you done anything with your air intake?

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mopar rt

· #6 · Jul 21, 2005

Sounds like you need more air. What other mods do you have besides the PCM?

You can modify the runners on the stock intake manifold and pick up some top end. You can also fill the plenum area. Port matching helps a lot and will only set you back the price of the new gasket if of course you do it yourself.

Also if you’ve been running it hard with the stock set up you may have blown the plenum cover gasket.

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Boomin5POINT9

Discussion Starter · #7 · Jul 22, 2005

Besides the PCM and headers it has a K&N FIPK, I shaved the TB down and polished it, MSD, underdrive pulleys, and 3 inch exhaust with a flowmaster 40 muffler.

I havn't blown the plenum gasket, Ive been checking it since it went in my last Dakota. It passed the vaccuum test and I have no oil accumulating in the manifold.

Is there any pictures or a how to type thing to help me with filling and/or making runners in my stock IM?

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N56629

· #8 · Jul 22, 2005

Magnum Intake Manifolds

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