Intake Manifold

[dsaint69]

I'm looking to get either the ATS intake Manifold or the Banks. Which has better performance??

 

[p-Bar]

Neither, try the CFM+



http://www.cfmplus.com/

 

[ToolManTimTaylor]

Wow have there been dyno proven tests to prove that the CFM+ is better than the others? That would be awesome if there has been because I still am skeptic of all of them. Last I knew the engine will still be flowing air under pressure into the same square opening after the intake horn of choice and flowing thru the same intake trough into the same intake valve ports that every truck has.

 

[JFaughn]

It looks like carbon fiber , if nothing els your truck will faster becouse its lighter .
I'm also a skeptic , of manifolds for the Cummins without going to the extremes , that are not streetable , If I won the loto then , even a mid size . I would look for other parts 1st , the most improvement for the $$$ , I like the look of carbon fiber , but when I was last building , there was a frase , all show & no go .
Aside from all that , forget what we all say , make yourself happy .

 

[foolkiller]

i did the intake manifold thing on my 99. had a banks and an ats. noticed zero improvements and ended up putting the stocker back on. hated the design on the banks. felt it had alot of places that could leak easily (the studs have a wierd rubber seal that i had no faith in although i dont think i lost any boost psi while it was on). the ats was a solid peice but again, no performance or egt increase. sold both items to invest in more effective upgrades. now exhaust manifold may be the way to go... ... i never did that, and don't know if it's any more effective than the intake.



i actually like the way the stocker looks better as well... . it grew on me.



good luck, jeff

 

[p-Bar]

the three were all flow benched and the CFM+ out performed all of them, I thinks the intake is designed to be used with higher flow intake such as turbo/intercooler ect. and the guys blowing black smoke out the exhaust. I have noticed a differance in smoother response thru the power band though my truck is stock.

 

[CDonaldson]

There is also the SWANKER, it's coming out soon. I believe they DO plan a dyno test sometime soon also. Unless you were going to do a whole buildup on the intake, intercooler, turbo etc, I cannot see where this one part would be of any great benefit by itself. I've seen the Banks polished, very pretty, guess that is a must for engine dressup and show stuff? No stats out there on thes puppies, so you are pretty much going into the wallet on blind faith. The rule of thumb is about getting the added intake air out, that's why many do the ehaust side first. I could easily spend the $$$'s on something else first.



CD

 

[Mhannink]

well to me it seems pointless to throw money at the intake because the flow rating of the head is already less then the manifold. i dont see the point or making the intake flow better when the head is gonna restrict it to the same cfm as before. the exhaust manifold is simalar but there are advanagtes in turbo spool up by putting a different manifold. the only time i really think an intake manifold needs to be changed to a better one is if you have the restrictive egr on the egr 12v's

 

[p-Bar]

well to me it seems pointless to throw money at the intake because the flow rating of the head is already less then the manifold. i dont see the point or making the intake flow better when the head is gonna restrict it to the same cfm as before. the exhaust manifold is simalar but there are advanagtes in turbo spool up by putting a different manifold. the only time i really think an intake manifold needs to be changed to a better one is if you have the restrictive egr on the egr 12v's

curious on the head data where did you get that??

 

[Vaughn MacKenzie]

It looks like carbon fiber , if nothing els your truck will faster becouse its lighter .

Yeah, before mod truck weighs 7645. 5 lbs, after new intake weight is now 7645. 1 lbs - good for 0. 000003 seconds off that ETA :-laf

 

[dsaint69]

Looks like I will be doing something else for an upgrade. I got the vibe that these things don't mean a hill of beans!! Perhaps then a Smarty Box.

 

[Mhannink]

curious on the head data where did you get that??

well i better be honest i dont have any hard proof for that statement its just something ive been hearing from respected people on this site. these people apperently have done testing do i have the proof no but it does seem true only on the fact that the intake isnt that bad. i do understand air flow some what(by no means am i an expert) and the limited knowledge i have agrees w/ what the respected people say about it. if ya want a few more details i can post them however this is not a tech discussion so i will refrain for now

 

[p-Bar]

It's something to ponder and I guess that's why you see some of those guys doing the porting to the head.

 

[24V-DSL]

Last I knew the engine will still be flowing air under pressure into the same square opening after the intake horn of choice and flowing thru the same intake trough into the same intake valve ports that every truck has.



Can't figure out how to quote, but I agree totally with Toolman. I'd love to hear a credible rebuttle from the mfgs on this point.

 

[DrDiesel]

You can make all the intake casting design changes in the world, but the fact remains. The intake air passes through the same restriction on every truck with the CTD. The intake plate and heater grid. :{

Now if you changed that little bottle neck, maybe you would actually see/feel some major advantage. Maybe add a second port and grid off the inlet pipe onto the plate for a 1 on 3 x 2 type of setup.

 

[Midnight]

You can make all the intake casting design changes in the world, but the fact remains. The intake air passes through the same restriction on every truck with the CTD. The intake plate and heater grid. :{

Now if you changed that little bottle neck, maybe you would actually see/feel some major advantage. Maybe add a second port and grid off the inlet pipe onto the plate for a 1 on 3 x 2 type of setup.

Didn't Banks have something like this for the 12v?

 

[d90boy]

Yeah, the Twin Ram. On 24V trucks all the injector lines and sensors are in the way for that kind of setup.