I've been toying with some new ideas for a turbo mani, and one of them is to go with a 4-2-1 design, instead of having all 4 runners merge into one collector. I haven't seen any out there that have this kind of setup, but would that be because its a bad idea, maybe some issues with flow etc, but I think it would be interesting to see a manifold like this. Any thoughts on this kind of design?

 

The reason you don't see them out there is because it's hard enough to get a 4-1 collecter in that small of an area, with the necessary elbows...add in a 2-1 collector and a few more elbows that it will likely take to snake around to and from it... and you'll probably be cuttign some body work out of the way.

 

i thought about this as well. here pretty soon im going to get another civic just to blow up all the time. i have so many single cam motors sitting around i have a bunch of STUPID idea's in my head....i just want to blow up a bunch of stuff to see what happens with differnt things...and differnt turbo designs and such.

 

would probably be much easier, if not also much better, to do an equal length mani, but if you make it, i wanna see it

 

not a bad idea but i think that's the same thing as a pulse divider but if you do it i wanna see some pics because i had the same idea

 

The manifolds I build are sort of a truncated 4-2-1 design. the 4-2 isn't really a true merge but it's pretty smooth. good for tight spots and tight wallets





Modified by Bailhatch at 5:30 PM 12/12/2004

 

Alot of the Evo Manifolds on the market are 4-2-1

 

I made one but the results were nothing special of it.

 

Check the bergenholtz car or the sand rail we did for saturn motor sports i posted up the pics way back when

there are beneftis but sizing and length are going to be very crucial

 

bailhatch made my mani,
it's a great piece.

 

Spark racing just had that thread on their new manifold. Seems to be 4-2-1 also. -





Looks pimplicous!

 

I thought the point of using a divided inlet turbine housing was for it to function like the second collector? Basically, you would build two seperate 2 into 1 collectors and then have the turbo function as the final 2 into 1 collector.

 

that ******* manifold is the just about the sexiest one i have seen.

GOD DAMN THATS HOT

 

that thing is cool