Low buck, home built dual plane HEMI intake

Great attitude Dan. I for one applaud your talent and abilities. I try fabbing my own parts when I can as well. I'm running a 500ci Caddy engine in my old truck and there aren't many aftermarket manifolds available for this engine. I briefly toyed with the idea of fabbing my own intake but talked myself out of it.
Now I might have to toy with the idea again.....

thanks for the inspiration
Bobby

 

Thanks Dan!!!

Please let us know when you fire it up!!!


JJ

 

Yes, it's for a 241 Red Ram Dodge Hemi..I will be installing it this winter..I just sold one just like to Chopperman for his 241..
Duane.

 

What nice about a log is it will fit the short and tall decks of Hemis..
Duane.

 

That for a Desoto...
Duane

 

I like Dans better!!
but do you want to see how Edmunds did it for 2x2 on the hemi way back when?
These are from Gkafer's pics. posted on classifieds.

 

HMMMM. that gives me ideas. i'd been plannin (got it all on paper) a 2x2 for a Nailhead. i modeled it after the Edelbrock B262 which is a 2x4 intake.

 

Dan,
It's good to see you posting here. I hope you stick around and become a regular.

I sincerely hope you dont count me amongst the so called nay-sayers. I was the one who told everyone to take a reality check. As to the ballance tube, well, that just comes from my background. I spent a lot of years doing design work at the GM engine development center. The Buick 3.8 was my baby, and I'd like to think I was at least partly responsible for turning it into the great engine it was. After my work on the gen II and III 3800, I helped perfect the Caddy Northstar V8, and then the LS.

My mission when perfecting new engine designs was to ensure they made smooth reliable power in as quiet a package as possible, hence my blind insistance on a ballance tube.... I never hinted it wouldn't work, and I stand behind my assertion that a ballance tube would smooth out the engine... But I realize that's not what a hot rodder wants.

I like the design a lot, and wish you the best of luck with it... Hell, for that matter, I'd encourage you to build 2 or 3 of them, and offer the extra one to the ebay crowd. Might put a few bucks in your pocket!

Keep us posted!

 

Thanks to everyone for the input, I don't pick sides, or get mad at people for there thoughts and ideas,the more people you ask , the better the final answer will be. I'm thinking about where a balance tube should be and the size of it?, possibly plenum to plenum, bottom of the upper one to the side of the bottom one. Now thinking about the next intake, plenum and runners ,top and bottom,cut out of one piece of material, round corners,sides welded on,trying to make the runners the same distance from carb to valves? To quote a good friend , Paul Beck, A mind is a terrible thing! Still having fun, Dan

 

[ED MCMAHON VOICE] You are correct, sir! [/ED MCMAHON VOICE]

 

Your plenums are 2" square i.d., and are about 17 inches long... 3/8 to 1/2 would be suficent. I would go from the bottom of the top tube to the side of the bottom tube, and it should be located beneath the primary carb.

 

Thanks for sharing .... Anything is possible hammered home again !




Maybe its the snow ?

 

Awsome , Cant wait to see how it turns out!

 

Hey If no one ever thought outside the box, we would still be in caves. I like it! I'm considering building a log type manifold for the nailhead now for 4 Rochesters using some square tubing. Anyone want to tell me how not to do it or why it wont work? That will get me busy!

 

Looks great to me!
I have one in the works too...I just got a few more ideas!

 

Nice work, really impressive!
Never thought it this way, as a self-made dual plane intake!
But, what I've been planning -like everyone else- is a log manifold. Not interested in best possible performance, only that it would work without problems and look good!

This thread might be winner for tech-month!

 

maybe use square tube turned slightly so that one of the corners is straight down. then come off that with your intake tubes... know what i mean? man, i already had ideas for fabbed intakes but this whole thing has got me thinking of several different designs now. i just think it will be a fun project to build...

 

he needs to flow test diffirent designs, i agree on the skills for sure, but ive worked on some flow benches and the sharp turns are a bad idea for sure.
just my 2c

 

Great Tech !! This is why I keep comming back to the HAMB for more. Outstanding work. Gives me a lot of ideas for my 53 Desoto Hemi. Thanks for all your hard work taking and posting pics. Thanks for the write up. It takes an increadable amount of work to post a Tech Thread. I am really getting tired of all the ney sayers in the crowd, complaining about everything. If it keeps up no one will want to post anything. Can't Thank You enough, Job well done.

 

glad the effort is appreciated. i used to spend alot more time posting the things my friends and i do and trying to lay it out in a "how to" type of format. i got so sick of the negativity that i stopped sharing all together for a long time. i've only just recently been back here on any kind of a regular basis and started to share again. i've got a couple other small tech posts up my sleeve that i'll post in the next day or two... if i have the time.

 

I appreciate your well done post and especially so, Dan's work.

Good looking flanges.
I've made em a couple different ways, but like Dan's drill and Sawzall method.

Gentlemanly discussion as well, enough shrillness in life without having to wade through it here on the HAMB.

Well done.

 

Got an intake question my own self, but will start another thread so as to not take away from this one.

 

...for what it's worth i'd like to see the intake they have built from scratch, by hand for little if no money and without the aid of fancy computer models like the ones Vic Edelbrock SR. and Eddie Edmunds had when they started out. [/quote]

Mike, you just shot yourself in the foot. You should have made your reference in support of Dan's effort instead of against it as neither Edelbrock and Edmonds had "fancy computer models" as the computer had yet to be invented (insert Al Gore invented the internet statement here) . Instead they did just like Dan, built what they thought was "a better mouse trap" and went out and tried it. If it worked, fine. If not ,back to the shop to try another aproach. You've got to remember some of the discussions that have taken place here on how some of the early flathead manifolds worked much better than others. Sometimes you just have to TRY even if you think your swimming against the tide. Like as has been stated, let the naysayers post pictures of their intakes then we have a frame of reference for their opinions.
Oh yea, neither of these men (Edelbrock or Edmonds) had a pile of money when they started either.

Frank

 

let me introduce you to my little friend. i call him "SARCASM"!!

 

Dan has more talent than most of us here on the HAMB and you guy's are giving him the third degree, how sad.

His car, his money, his way!

 

Still plenty of room for the nitrous nozzles !

 

LOL. that sounds EXACTLY like something Dan would say.

 

First off, what the Fuck do We all buy tools for??? We are ALL tool whores and just love to take the chance to make or modify something for our hotrods. Even better when We got the material laying around be it new-used or just some something that can be modified for a totally different use.
The manifold is AWSOME! and the first dual plane made at home Ive seen. Great job Dan. As far as performance, We shall see. I suspect it will work just fine. You can try balance tubes and other things like epoxy down the road.
Not to hijack the post but heres a pic of the manifolds I made for My injected 440 mopar. I wanted them to stand vertically.I also made the valley pan-watering system-headers and oilpan. The manifolds are rectangular shaped and seem to work well.
My point being I took a chance,made My own and it runs 990s at 133 so Im OK with that. FEDER

 

I would love to have his talent, but would be happy to have the chance to work side by side to learn from him!!!!!! So do what the hell you want it's your time and money. And make sure you guys do share for the few here that appreciate it.

 

FEDER that looks badass. what motor and what car are we lookin at. for a second (looking at headers) i thought SBC but then i looked closer. i can't figure it out, it's not one i'm familiar with.