mark kibort

or some need to open their mind a bit..... most of the thoughts are pretty obvious. but ill try and be more clear!

Imo000

The real ones come from the Serbian side and I distilled it with my grandfather. The beer you guys have in the US is horsepower too.

Mongo

Serb and 'real' should not be in the same sentence. (kidding of course)

Quite honestly and ironically, we have a friend who is Serbian and does the same thing. Politics and history aside, my uncle and him have shared recipes. He also lives in Croatia and is about 2 hours away from my uncle's distillery.

mark kibort

so, not to beat a dead dog, but is it possible to take an intake like the AM V8 intake and lap off the legs, and weld up some legs that fit the 928 head ports? I wish i was a aluminum welder and fabricator. I would love to take on that project.. i bet it would work. used intakes off the AM v8 are in the 2k range.

Ducman82

what are its dimensions?

mark kibort

the ports seem to be 10.5" apart side to side.. the row of all the runners are about 12" long, with 4" between each runner and the entire intake is about 22" long and the entire intake is about 8.5 tall from the surface of the head

using the same measurements... the hight of the intake sytem is the same about 8-8.5" the S4 has the row of intake runners at a length of 14 " vs the AMV8 intake of 12". the S4 is more like 12" port spacing side to side vs the AM V8 which is 10.5.... and the length of the s4 intake is much shorter as it doesnt include the same TB mount.... so , 14" , the length of its row of ports, is its length. the body is a little shorter than that.

edit: the best way for it to fit, would be to be pointed rearward and the TB would just be in the AC area under the base of the windshield, with room for a 9 degree elbow and a large cone filter.

V2Rocket

You would be way ahead taking the design features of the AM stuff, and making a totally 100% custom manifold using it as a "scale model".

Cutting up AM parts is bad due to the cost of the parts, and the fact that the AM stuff is bound to the same considerations (restrictions or limitations) as the 928 intake would be...namely, off-idle power, ease of cruising, decent MPG, and emissions compliance above all else.

You won't make 100hp or 50hp without throwing these ideas out the window, partially or wholly.

Imo000

Yes it's possible.

Imo000

I gew up in Serbia (was Yugoslavia back then) but I'm not a Serb.

mark kibort

actually, the hardest part, it seems is the intricate design of the runners. this AM intake has that done for you and has none of the limitations that the S4 intake has . MUCH larger runners, and as GB proved, even putting a 85mm TB on the S4 intake, didnt give any gains.. its VERY restrictive and has major issues at high RPM and flow rates. the AMV8 intake would probalby have none of that. the only draw back is that you lose low end flappy torque, which racers and HP geeks wont care much about (nor the MPG part of the equation)

Again, i bet its a 30hp bolt on affair for the S4 and a 50hp bolt on affair for the strokers

Ducman82

flow and runner designes fro that intake are pretty different. but if one of fab it and actually test it, it could be the runners and plenum might cause problems with. just like if you bolt a single plane intake on a car after having a dual on there... same runner lengths, but a diff beast.

are you going to pick on up and do some planning?

dr bob

Do it! And let us know what gains you see with no other changes.

jcorenman

So an intake that is designed for a 4.3L engine works equally well on a 6.5L?

I didn't know that, thanks! And it is especially great to hear that size doesn't matter! !!

GregBBRD

Could be....give it a try!

Just remember that once the raw intake manifold is done, there's an entire list of other things that need to be made to work, also.

It seems so simple, until you actually start having to design and fabricate all the pieces. I'm guessing that 2/3 of the cost for my manifold will be the actual manifold. The rest will be consumed by throttle linkage, fuel rails, injectors, dampers, fuel pressure regulator, fuel pump, wiring, plumbing, etc.

And then there's the whole tuning thing to optimize all the changes. (Keep in mind that adding 50 more horsepower to your stroker will maximize the stock air flow meter.)

Yes, I'm sure you will say "I'll just use what I have." But the reality is way different. You need bigger injectors to make more horsepower. That requires more fuel delivery. More fuel delivery requires different fuel pressure regulator to be able to return the excess fuel at low loads (or suffer the problem with overheating the fuel....this Forum is loaded with posts from people that have had this problem, but have no clue why.) Now that the injectors are much larger, there are brand new problems with the pressure waves caused by batch firing the injectors (Rob Edward's engine "shook" the fuel lines so much that it concerned us that the fuel lines were up to the task of containing the surges.....and we were forced to make some changes.)

Simple?

I'm a far cry from a novice at this stuff....I can design and fabricate virtually anything, without leaving my shop. Note that I'm three years into this project. Granted, I need to make a living and can't devote every minute to this....but I've personally got hundreds of hours into this project. And the piles of scrap attempts and scrap pieces would amaze everyone.

Simple....it is not!

Ducman82

Ya, it is a nice large pile. i keep tripping over the boxes of test parts!