ok well first off i saved a weber from being scrapped : D FREE well instead of throwing it on the stock manifold i decided im gonna try to build a custom intake for ************z n gigglez. the picture i drew up on paint is what the layout is gonna be. im thinkn 1 1/2" metal conduit. i have the flanges made up for the heads. im just trying to get some more input b4 i move on. all is appreciated plz point out ne flaws you see. thanxs : D

The stock intake flows coolant under the air passage, so if you get rid of your stock intake you'll have a coolant passage to worry about.

 

Not impossible to overcome, but an issue you'll have to resolve.

 

 

My .02 cents, for innovation that's a cool idea, practically its probably not going to net you any power.

You will have to deal with the coolant cross-over, upper radiator hose, thermostat housing, and guage sending unit somehow - that's a lot of work for a Weber when the stock manifold is more than sufficient......

 

GD

can it be done: yes anything and everything is possible.

 

why: not sure what you are trying to improve on.

ive already considered the coolant passages. im going to plumb in some fittings. and just run a hose from one side to the other. ive read and heard that these intakes dont flow that well. plus the coolant runs through it meaning hotter air which is bad. and well what the hell why not. hah

What about the upper radiator hose and the thermostat housing?

 

If it were me, I would beg/borrow/steal a TIG welder and get busy with an EJ coolant cross-over......

 

GD

thats a good thought... hmm..... idk... inline thermostats are more spendy than i thought. grrrrrr haha. i could take two of the thermostat housings and bolt em together back to back. thatd work.

The thermostat housing cover's will not accept the spring side of the thermostat - this is to insure that you don't install them upside down - it also makes it impossible to bolt two of them together with a thermostat in-between. You might find an aftermarket stat that would allow it with minor grinding of the cover on one side.

 

You still have to plumb the radiator hose to the coolant cross-over. The coolant cross-over shouldn't be any smaller than probably 3/4" ID and the radiator hose is 1-1/4" ID. With enough fittings you could do it but it won't look pretty. There will be issues with flow volume unless you first go to 1-1/4" from the 3/4" outlet's of the heads and *then* to the radiator hose. You can't bottle-neck them anywhere - they must flow freely to the 1-1/4" thermostat housing or you'll overheat for sure.

 

GD

Edited March 30, 201016 yr by GeneralDisorder

ya i figured on that part. hmm..... idk ill redneck somthin together..

Maybe this is dumb, but what about port matching the stock manifold to the head and maybe cleaning up the top by cutting off the factory flange and welding the adapter plate directly to the manifold?

 

No doubt that a custom manifold can be done, the airplane guys have fancy carbon fiber ones. You don't wanna know how much they cost. But it seems like a lot of work with a small potential for gain.

ya but that defeats the purpose of the whole anti coolant to intake air idea. plus i like trying to make stuff works so this will be fun for me : D. i completly agree on the price thing too blehhh

ive already considered the coolant passages. im going to plumb in some fittings. and just run a hose from one side to the other. ive read and heard that these intakes dont flow that well. plus the coolant runs through it meaning hotter air which is bad. and well what the hell why not. hah

 

unless your "Smokey" Yunick.(R.I.P.) the guy was a mechanical genius.

about 30 years ago, he built and ran an engine with air/fuel mixture intake temp above 250F. I guess its still running.

Im still trying to figure out how he did it without blowing something up.

thats frickn nuts..... hah that is crazies

In the end it doesn't matter how big the intake is, the cylinder head intake port is still small. flow is limited by the smallest diameter in the system.

this is true. so it is the heads that have the smallest runner.