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+--- Thread: Making a high flow intake manifold? (/showthread.php?tid=1887)
Making a high flow intake manifold? - erling66 - 10-23-2010
I am planning to make an intake manifold that looks like a typical performance gasoline(non turbo)exhaust manifold, with equal length runners collected in a round pipe with same area as the runners combined. I am thinking to place them in a circle according to the ignition sequence.
Has anyone tried this, or is it a bad idea resulting in restricted flow and/or uneven pressure to the individual cylinders?
I am planning to use it on a 606 with HE351ve turbo, large intercooler, modified exhaust system and 7mm elements in a 603 turbo IP.
RE: Making a high flow intake manifold? - willbhere4u - 10-23-2010
awhile ago we where discussing long runner intake manifolds on our OM617 http://www.superturbodiesel.com/std/om617-turbo-intake-t-445.html
also check out this thread on exhaust manifolds
http://www.superturbodiesel.com/std/om-exhaust-manifold-thread-t-1694.html
RE: Making a high flow intake manifold? - muuris - 10-23-2010
(10-23-2010, 11:34 AM)erling66 Has anyone tried this, or is it a bad idea resulting in restricted flow and/or uneven pressure to the individual cylinders?
Better to stick with OM606 stock intake manifold than to try that..
RE: Making a high flow intake manifold? - ForcedInduction - 10-24-2010
Agreed. The stock 60x intake manifold runners are already pretty darn good. Jeemu has been toying with plenums but there isn't much to be gained that an extra few psi of boost couldn't outdo. The true restriction on the 606 is the exhaust manifold, but since you're going with a 351Ve you're probably making one for it anyways.
The 617 definitely needs help with the stock log, thats why the W115 intake is so valuable.
RE: Making a high flow intake manifold? - jeemu - 10-24-2010
606 plenum isint that good. Air goes straight at 3th cylinder and plenum is wery small. Making bigger plenum and better inlet of that you can get equal volyme air in to cylinder. So you egt on between cylinders are close each other.
![[Image: mese375.jpg]](http://i268.photobucket.com/albums/jj3/antti__k/mese375.jpg)
RE: Making a high flow intake manifold? - erling66 - 10-24-2010
(10-23-2010, 01:54 PM)muuris(10-23-2010, 11:34 AM)erling66 Has anyone tried this, or is it a bad idea resulting in restricted flow and/or uneven pressure to the individual cylinders?
Better to stick with OM606 stock intake manifold than to try that..
I am sure that is a good advise but also a boring one
I am going to try some experimenting
(10-24-2010, 12:05 AM)ForcedInduction Agreed. The stock 60x intake manifold runners are already pretty darn good. Jeemu has been toying with plenums but there isn't much to be gained that an extra few psi of boost couldn't outdo. The true restriction on the 606 is the exhaust manifold, but since you're going with a 351Ve you're probably making one for it anyways.
The 617 definitely needs help with the stock log, thats why the W115 intake is so valuable.
Yes I agree, Mercedes did a good job on the 606 intake manifold but they had different power goals than most of us do. I am sure the intake would have looked different if Mercedes made a 606 race motor. Too bad they did not develop any diesel race motors(Audi did)
Yes I am going to build an exhaust manifold. I got lots of useful info in this forum
Do you 617 guys need more W115 3.0D intakes? I can look for them when I visit junkyards.
RE: Making a high flow intake manifold? - erling66 - 10-24-2010
(10-24-2010, 05:42 AM)jeemu 606 plenum isint that good. Air goes straight at 3th cylinder and plenum is wery small. Making bigger plenum and better inlet of that you can get equal volyme air in to cylinder. So you egt on between cylinders are close each other.
That is very good information
I am planning to start with something like that and later make something more advanced(dual plenum) and maybe the intake I mentioned in post 1.About your photo, Did that intake perform well? or is the dual plenum much better on both low rpm and high rpm?
RE: Making a high flow intake manifold? - MJF - 10-24-2010
I have seen one equal length intake, it was in aussie slant six Valiant, 600+whp. Tried to find picture again, but no luck so far...
RE: Making a high flow intake manifold? - willbhere4u - 10-24-2010
over here in the U.S the older Toyota Corolla stock Intake manifolds look like this!
RE: Making a high flow intake manifold? - jeemu - 10-24-2010
(10-24-2010, 10:58 AM)erling66 About your photo, Did that intake perform well? or is the dual plenum much better on both low rpm and high rpm?That s not my manifold. Yes dual plenum is better low, high rpm and between them.
RE: Making a high flow intake manifold? - erling66 - 10-24-2010
(10-24-2010, 12:15 PM)willbhere4u over here in the U.S the older Toyota Corolla stock Intake manifolds look like this!
Wow that is one cool manifold
a bigger carb and it will be a real race machine.(10-24-2010, 12:20 PM)jeemu(10-24-2010, 10:58 AM)erling66 About your photo, Did that intake perform well? or is the dual plenum much better on both low rpm and high rpm?That s not my manifold. Yes dual plenum is better low, high rpm and between them.
Have any of you Finns made a merc diesel manifold looking similar to the Corolla manifold? Maybe it will flow even better than the dual plenum?
You should tell Mercedes what you are doing to their diesel engines in Finland. Maybe they will hire you and pay a gooood salary to develop new high performance diesels
RE: Making a high flow intake manifold? - yankneck696 - 10-24-2010
I am turning towards the OP's idea. I wonder if it might help a miniscule ammount if you took into account the swirl from the turbo & firing order. I would also taper out form the turbo gradually (there is a formula or magic fraction for this somewhere) & then run a decent length of tube 8"-18" as a guess to the "collector" (diffuser) input that would give you a plenum area.
RE: Making a high flow intake manifold? - jeemu - 10-25-2010
(10-24-2010, 02:39 PM)erling66 Have any of you Finns made a merc diesel manifold looking similar to the Corolla manifold? Maybe it will flow even better than the dual plenum?No, because it has too many turn s.
RE: Making a high flow intake manifold? - hansebanger77 - 10-19-2011
any news for an intake ?
i want build or rebuild the stock intake for my 606 project. anyone have a good picture or some tips?
thx
RE: Making a high flow intake manifold? - ronnie - 10-19-2011
http://zumotor.blogspot.com/
This has good info on tuned manifolds, and a bunch of other stuff too.
I did manifold for my 616, non turbo engine, it really made a differance.
RE: Making a high flow intake manifold? - SurfRodder - 10-19-2011
(10-24-2010, 10:58 AM)MJF I have seen one equal length intake, it was in aussie slant six Valiant, 600+whp. Tried to find picture again, but no luck so far...
It's called a "Hurricane", you can check it out here:
http://www.aussiespeedusa.com/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=17&category_id=1&option=com_virtuemart&Itemid=2&vmcchk=1&Itemid=2
I put one in my sisters car a while back, but then messed up the tuning and melted a couple of pistons. I may be bale to talk here into running it again in the future, but well see. I rebuilt the engine so she shouldnt care to much, but shes been crying about mileage for a while so ill have to let her drive it with the 2 barrel for now.
RE: Making a high flow intake manifold? - hansebanger77 - 10-20-2011
nothing to do with a 606 intake
RE: Making a high flow intake manifold? - MJF - 10-20-2011
(10-19-2011, 06:29 PM)SurfRodder(10-24-2010, 10:58 AM)MJF I have seen one equal length intake, it was in aussie slant six Valiant, 600+whp. Tried to find picture again, but no luck so far...
It's called a "Hurricane", you can check it out here:
http://www.aussiespeedusa.com/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=17&category_id=1&option=com_virtuemart&Itemid=2&vmcchk=1&Itemid=2
I put one in my sisters car a while back, but then messed up the tuning and melted a couple of pistons. I may be bale to talk here into running it again in the future, but well see. I rebuilt the engine so she shouldnt care to much, but shes been crying about mileage for a while so ill have to let her drive it with the 2 barrel for now.
Nope, I didn´t mean Hurricane. It´s in Cameron Tilleys VC and it´s reverse header with throttle body in collector. Not much pictures in web of it
RE: Making a high flow intake manifold? - hansebanger77 - 10-20-2011
i think i would take the NA 606 intake.. little bit welding and done...
RE: Making a high flow intake manifold? - jeemu - 10-20-2011
(10-20-2011, 05:32 AM)hansebanger77 i think i would take the NA 606 intake.. little bit welding and done...Turbo manifold has straighter runners so its better choice.
RE: Making a high flow intake manifold? - hansebanger77 - 10-21-2011
(10-20-2011, 05:12 PM)jeemu(10-20-2011, 05:32 AM)hansebanger77 i think i would take the NA 606 intake.. little bit welding and done...Turbo manifold has straighter runners so its better choice.
aahh ok .. thanks jeemu!
does this affect strongly on the performance or power, heat of the car?
i still have the intake give to my alu welder..
next positive i think, is to adjust easy alda and fuel on the pump.. so i go for the NA..
hmmm but otherside i want to get best out of it. (without overheat again
)