Intake Manifold Question Options

[JMoushon]

Hey Kris (or anyone who knows): Does the Magnus manifold have anything but the T/B attached to it? I tried to look at your pics, but my comp said no. I have some extra materials and a MIG welder, and way too much time on my hands; So I think I am going to fab up a manifold. Last ?... What size are the runners on the Mag manifold? And what size do you think could improve on that... The plans have already been drawn, and they look pretty good. I just don't know what diameter I should weld the primaries out of. Any input is welcome, so if anyone has any ideas, shout out. I am probably going to be trying a couple of designs (sheet metal box, All-tube equal length collector style, etc.) The all-tube design is TIGHT!!!

[awd4kicks]

Mig welder? Can you weld aluminum James, or are you planning on making the intake out of steel?

I know Kris has thought about it and I have discussed making my own manifold as well. The fact that a do-it-yourselfer extremist like Kris bought one...tells me that it may not be worth it.

If you plan to push ahead and plan on making it out of aluminum, let me know if you need any help. That is except for tube sizes because I don't know that.

Another thing these intakes incorporate are velocity stacks inside the main runner. That maybe be a little harder to duplicate.

Marcus

[wortdog]

Too bad I don't know how to use it, the UofI just got a machine that can 'print' in ABS plastic. You just feed the machine a cad drawing of each part, and out it comes in a few hours. We use it for building the entire intake manifold on the FSAE car.

That wouldn't work so well in a turbo application, now that I'm thinking about it. We haven't found a good way of bonding individual parts together yet though, and boost would compound the problem. Heated intake air could also be a problem.

On the other hand, I can (barely) tig weld aluminum, so if you want to make the whole thing and hand it off to me, I'd be willing to have a go at welding it.

[JMoushon]

Actually, I am able to weld aluminum or steel. I could weld titanium if I wanted to, but that's getting pretty pricey for maybe a two pound difference. I plan on using steel at first, for what I guess you would call the prototypes, and whichever design works best will be re-fabbed from aluminum. The internal velocity stacks won't be a problem, I can make them or buy the horns from TWM. I was looking under the hood, and I actually think I could do a tubular manifold w/individual throttle bodies. I figure that if they make big power in N/A cars, they should post HUGE numbers on a turbo car. Believe it or not, it all looks pretty straightforward, the only really tough part being bore selection of the ind.T/Bs. All in all, it looks like I'll have at least two different designs ready to test in early spring, and when that comes around, I would like to test them on cars at different levels of mod. It's a long shot, but it'd be nice to beat the Magnus... I'll see if Kris will test it for me. (then keep it for myself...hahahaha!) I'll keep you all posted as to how it's going, I'm sure I'll need to vent regularly...