looking for a 24v p-pump runner intake

nick2001 said:
So there are runner intakes out there that divide each cylinder? Even the 2 thru 5 cylinders? How do you manage that when the head casting flows in to one port? Are they diviving that port somehow before fabbing the runners up and away? The whole goal is to seperate the pulse from the main plenum in the runner, Right? And if that is the case, I would need to divide the 2-5 ports and tie both ports per cylinder together? Does tapper rule still apply? Cause I picturing some kind of divided box/hump dividing cylinders on the head and a flange after that.:badidea: The "better option is" to split all sieamese ports on the head, then have a flange, and finally have runners (12 that would tie to 6) and in to a main plenum. That make any sense?
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I would really like to see a comparison sometime between an open plenum type manifold and and individual runner manifold on a dyno. I can see an IR manifold on a NA motor making a big difference but on a force induction motor I don't buy it. On the 24 valve head you would have to do allot of cutting to the head to get the runners to seal off from one other. I know there are people out there making them but in reality I think they will still have an air gap between the ports that will bleed over. Hence you have a cool looking manifold that might not flow as good as the open plenum manifold. $.02
 
I will have have my truck back at the end of the month that will have a individual runner intake on it made me ss should be very nice its for a p pump truck
 
Toolman said:
On the 24 valve head you would have to do allot of cutting to the head to get the runners to seal off from one other. I know there are people out there making them but in reality I think they will still have an air gap between the ports that will bleed over. Hence you have a cool looking manifold that might not flow as good as the open plenum manifold. $.02
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I would agree. I have been looking at this head I have and it looks damn near impossible to seal the runners without complicated machining to the head and flange. I know the end user wont want to do all of this machining to make a IR intake fit. Im still up in the air.... Lets discuss!!!
 
BigYellowIron said:
I would agree. I have been looking at this head I have and it looks damn near impossible to seal the runners without complicated machining to the head and flange. I know the end user wont want to do all of this machining to make a IR intake fit. Im still up in the air.... Lets discuss!!!
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I know you have heard this already Adam, but I'll post up to see what others think.

With an overall idea of just getting more air, I agree with Toolman that a larger plenum - not necessarily IR - would be most beneficial. That being said, the p-pump 24v guys don't really have that option due to the pump location and also the lines since they feed into the driver's side of the head.
 
BigYellowIron said:
yes the lines are going to make a IR very difficult without bending your own.
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I'm thinking even with just a larger plenum similar to what BBD had on it for last season (non-IR) or what is on the drag truck that has KDEL injectors (name escapes me now). With the 24v, the plenum cannot extend too far vertically because of the lines even if they are custom bent.
 
Who makes a bolt on style open plenum intake thats shaped similar to stock. Basically I want a stock looking intake that can be bolted back on after the head is ported and still uses an air horn to dump air into it.
 
ok i was confused, i thought all those guys were making the runner style. thanks for setting me straight. looks like i have a spare head to play with now and im gonna do something but i know a runner intake is gonna get me booted from most places for sure, thats why i am gonna stick with a normal style bolt on plenum
 
We fabricated & installed the first 24V true individual-runner intake manifold a year ago (late January 2009) - glad to see folks continue to gradually build acceptance for these types of airflow improvements which are well-proven & taken advantage of in the non-diesel world.

As posted above, if the siamesed ports cast into the head aren't *byfurcated, there isn't much point to individual runners, where the intake path from the plenum to valve is totally discrete.
Even though the additional machining & fabrication required for a 12-IR manifold drives the price up by hundreds of dollars (especially one in 304SS & 6061 billet), it's well within expectation & reason for a cylinder head package that can cost several thousand dollars.

Of course, true individual runners have opened up many options for managing the combustion process on a per-cylinder basis using water(methanol) and/or nitrous injection, for instance.
24Vs are physically capable of 2X the gas flow process control of a "dinosaur" 12V... food for thought, once you realize information is power. :Cheer:


*Had to misspell this word because the site software kept inserting the faggot-fight smilie for "bi" :hehe:
 
... forgot to add that the 12-IR fits with OEM injector lines and twin CP3 kits. :)
 
yea that dont look like it will work with a p pump or vp44. I would like to see tha back side of the adapter where it bolts to the head.
 
BigYellowIron said:
Did this thread die???
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Looks like it LOL

I'd like to see the backside of the 12 IR manifold too. It doesn't look like the head is machined any further than a typical manifold on the ends, although it could be in the center.
 
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