i guess there aren't any options out there for the f22 crowd. well, here's one:

 

sweet any plans on f23? they are pretty much the same. Its nice to see some support for the accords

 

Good job Aaron. Manifold looks awesome!

Mike

 

Any info on the car its going on?

 

not really, other than he wants to make 450hp.

 

Is it staying in an Accord or is he doing a F2D/F2B swap?

 

how much shipped to 96720? pm me

 

i'm not making another one of these. this was a 1 off, sorry.

 

What diameter runners did you use, and do you have any idea what the plenum volume is?

SWEEEEEEET WORK! ! !

 

Hit me up, I'll build you one if Weir doesn't want to.....

my manifolds.......

 

Wow, nice work but holy thread jack lol

 

interesting design on the plenum... but i feel, under high boost, that design would want to swell like a balloon.

here is the finished product after anodizing:

 

Yeah, didn't mean to jack the thread....oops....I did tell him to PM though :-)

Anyways, really curious about the swelling like a balloon thing though.... it is .120" 5052 aluminum, laser cut, cnc formed, solid edge designed, tig welded, pressure tested for leaks at 45psi (haven't tried more because why would I). Not to mention dyno tested and makes great power and torque throughout. I absolutly do not want to thread jack, I wouldn't have said a word had Weir not already said he is not interested in building more.

Oh, BTW, I designed the plenum that way because it has no parallel sides.

 

Any appreciable flat area is prone to bulging. If it didn't do it in your 45psi test, it likely will not do it at all.
They are both neat, but they make pressure vessels out of pipe and rolled plate for a reason.
It may not need that design for car applications, but it is the best.

Weir,
That red anodizing is the BUSINESS!!!
What alloy was the flange that it did not color match?

 

That makes a lot of sense. Say it's a new option for f22 engines, then say you aren't making any more. Not really an option now is it.

 

wow nice IM....

 

i'm sorry. you are right. but if i give the intention this thread is an advert, it will be deleted. i'm tired of having threads deleted. i don't think i'll make another, because i don't think anyone would be willing to pay the price for it.

the bottom flange is a different grade aluminum, it is a cast flange off an oem.

as for the plenum discussion, i designed it that way because under repeated pressures, having a weld on a flat joint rather than a corner should stand up better. i've seen a lot of manifolds with a weld on a corner that fails. like this one:

 

Wow, that's interesting. . . Do you know if that happened from boost or from a backfire?

 

Its going to hard to avoid every lightning strike, hell freezing over, senario out there. All we can do it build our pieces for what it intended to do, in this case its to make more power, not withstand Hiroshima. The manifold in this picture looks amatuer built, look at the flange...1/4" thick at best, and the welds look questionable even where it isn't blown open, and where it is...I cannot see where there ever was a weld. Cool pic though. :-) poor guy, must have been a hell of a site to pop the hood and see that.

 

why i don't like welding a flange at the plenum floor:

 

thats an old magnus design. their new ones have overlapped walls where they are welded.

 

Wow, I'm impressed...not sure if that is the right term for this situation. I guess Brian Earl Spilner was really lucky he didn't blow the welds on the intake. lol. I've never seen anything like this before....lucky for me, I've made between 10 and 15 intake manifolds before, never had this problem with mine, but certainly makes me want to put extra effort into my set up.

 

Some of these welds look funny. . . Kind of like some of the (BEST) gas welds I do on aluminum. . . . . It's not possible, is it?

 

I was going to mention that too, but I don't want to seem argumentative, or too proud of my own welding abilities. The manifold in mention looks to have ground off welds on the plenum to base flange seam (probably because they looked horrible, and that is the main weld everyone pays attention to). In its case, I am not suprised it cracked. I am however surprised to see a Magnus manifold cracked, the welding looks to be on par, and have never heard word one negativly towards their lack of quality. **** happens.

 

like i mentioned, that is an old old old style magnus manifold. look on their website at the new design.