I have created a tubular turbo manifold. It will fit a GT35R or any S-cover turbo on a 2.4 swapped car.

I have one all ready to go to the TIG welder. Is anyone else interested in me making an exact copy and sending it to the TIG welder at the same time?





Still have to clean up the edges here and there, bevel them all, and clean everything, then tack it all up and get it to the tig welder. Its being held together by shoving 1.25" PVC in the runners in those pics. Its hard to tell from the angles, but the merge collector is high angle and equal length to each runner. The second runner is the shortest, the fourth the longest. All bends are the normal long radius, 2.25" CLR. No cheater cuts anywhere. That little spot of rust on the stainless is due to some contamination - will have to clean that off really well. And the tacks you see there are coming off, its going to get cleaned really well with tools only being used on stainless, etc. I will put a wastegate provision on it as soon as I finalize placement.

So, any interest?

Looks pretty good. Isnt it fun designing your own manifold?

That one kind of reminds me of like a 4g63 manifold.

-MIKE-

Stroked 2.2L

send it to josh - turbo8u - my homie runs sick beads

edit: looks pretty fuckin sick by the way!!

That is nice. Interest depends on fitment and price as always.

Originally posted by pghsebring

Originally posted by eclipse982nrRST Looks pretty good. Isnt it fun designing your own manifold? That one kind of reminds me of like a 4g63 manifold.

Well, i'd prefer to have bought one, considering i had to buy a welder and a bunch of consumables, a horizontal bandsaw and an expensive premium blade, carbides to grind with, piss around with spare flanges getting it right (and destroying those flanges in the process), buying way too much stainless so that i didn't run out (and ruining half of it). I had also bought an expensive carbide tipped chop saw blade - and found out after 2 or 3 cuts that they don't last very long. So honestly, this wasn't exactly fun. But now that i know how to do it and have all the tools i could reproduce it more reasonably than the total cost I have spent this far. Its based more on these: South Florida Turbo manifold inline pro manifold lovefab lovefab DCR Guys have run 9's and 10's on all of those manifolds above. The goal was to have a full size high angle merge collector and the shortest runners possible for spool up. I also wanted to avoid unnecessary "up then down" bends which are bad for flow. I rotated the angle on the merge collect and made all the paths as smooth as possible while still maintaining a high angle merge collector. I considered/mocked up manifolds such as this: But decided that the direction I went in would flow better due to the proper merge collection, and no "up then down" bends. I chose good merge collection at a high angle to the turbo and shorter overall length, over a more equal length runner.

-MIKE-

Stroked 2.2L

Any bend in the tubes slow down the velocity of the exhaust pulse Mike. The fewer bends the faster the velocity will be.

Now i'm not trying to say that you can't run 9's or 10's with your manifold, i've seen it done. Differences here aren't going to be major. Just pointing out the ideas I went by. Most people use ramhorns when they need the turbo flange to be so high that a manifold like mine with a high angle merge collector isn't practical, like in a lot of hondas. They prefer extra bends and longer runners to a crappy merge collector, cause a good merge collector is more important.

Stuart

-MIKE-

Stroked 2.2L