Re: Anyone build their own Intake Manifold?
 

this is old, but i saw a cool ass intake made from a spearco intercooler endtank, apparently you just by one end tank and it is already shaped and has a opening at the end, looked good to me. like this but it was cast alum, http://www.roadraceengineering.com/p...tank-17-lt.jpg

Re: Anyone build their own Intake Manifold?
 

That's a sweet idea, as long as the endtank has plenty of volume to act as a intake manifold plenum. Anyone know any decent and cheap end tank suppliers other than treadstone?

Re: Anyone build their own Intake Manifold?
 

here is mine that corey and i made (mostly corey). we made the calculations for the runner size out of a efi tuning book tyler had. had a whole chapter on intake manifold fabrication. its got vstacks, 9" runners, and a ls1 75mm tb

Attachment 23411

Attachment 23412

Attachment 23413

Attachment 23414

Re: Anyone build their own Intake Manifold?
 

^ that looks good :6

Re: Anyone build their own Intake Manifold?
 

can you post of the formulas you used or the title of the book maybe?

Was it called Herllmholtz tuning or something like that?

Looks like good fab and should work nicely.

Re: Anyone build their own Intake Manifold?
 

I'm curious as to why the v-stack would be any different than a standard convergent design from plenum to runners?

Re: Anyone build their own Intake Manifold?
 

It has to do with the S type motion for better flow.
I don't know exactly why but thats all I could find on the subject.

Re: Anyone build their own Intake Manifold?
 

Where'd you get those velocity stacks? I've been reading around, and people are using measuring cups, metal egg trays, all sorts of crazy cheap crap that you can find in walmart for velocity stacks.

Re: Anyone build their own Intake Manifold?
 

I made one for a guy a while back, it's on a 2l Golf X-flow motor the guy used on an ovals track racecar....

https://farm3.static.flickr.com/2102...058b7b88b6.jpg
https://farm3.static.flickr.com/2184...19743569c6.jpg
https://farm3.static.flickr.com/2138...de4e8f3e90.jpg
https://farm3.static.flickr.com/2181...6f339140ff.jpg
https://farm3.static.flickr.com/2420...ed136700f6.jpg

Re: Anyone build their own Intake Manifold?
 

so ARE these better for flow than the runners being flush? i mean, it looks to me like they would screw up the flow cause they are sticking up halfway to the top of the mani..or does it have something to do with the #4 runner not getting enough air?