Flow vs. RPM Range (Intakes)

[nivvy]

Some intakes of course flow better than others - which is very important... but my question is it better for me to get an intake that has more cfm flow or one the thats more in my power curve range?

my cam builds power form 3000-6500 but being a stroker its more like 2700-6200...

Max wedge ports of course flow more but what if the intake rpm range is higher? (going with max wedge port aluminum heads of course)..

Or should I go with Standard 440 ports and a better power curve range intake?

I cant decide to get the new ez heads fully ported wth standard ports or max wedge ports?


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[Tubbed440]

It all boils down to application and goals.  If you can provide that info for us, that would help.  Any details on your set up?  Cubic inches, cam specs, heads, compression ratio, transmission, rear, etc?

[nivvy]

499 Stroker
10.1 compression
3000-6500 rpm range - .620 solid roller cam  -  with 1.6 roller rockers
3.91 auburn gear
3000 stall

want to go with Indy EZ heads(max wedge port or standard?)
currently running 906's

want more head flow but am concerned about intake flow vs. intake power curve?

hope this helps....

[Chryco Psycho]

intakes are designed differently to work with differenty air flow requirements , this is why a tunnel ram is really not a street intake for example , I would pick an intake to work in a slightly higher range than you intend to run the engine in RPM wise as it is a stroker
 Indy should be able to give you a better idea which head would work best , my bet would be the Max port is the way to go with that combo  but that will limit intake choice

[nivvy]

So if I go with an intake that is rated at 3500 - 7500 that wont affect my cam even though its working at 2700-6200??? or will there be some bogging?

[Chryco Psycho]

I doubt you would feel it but you will lose some power in the lower range of the cam , But the rpms are based on 440 & smalller engines not 500"

[nivvy]

Would that be the same for the intakes as well....power curve is based on 440...and would come down a little lower cause of the 500...?

[Tubbed440]

I'd go with the Indy EZ max wedge ported heads....but not the ones that are hogged slam out. I think they have ones that are the 295cc intake ports....?

The main thing on a street motor is to keep the port velocity up as to not make the motor peaky.  With that cam, converter and gear you have, it really isn't going to make that much difference what intake you run.  If it were me, it would definately be the single plane Indy manifold.  I imagine that you have so much low end torque right now that you could just blip the throttle and tear the tires off of the car......and a max wedge port will move that torque a little higher in the R's, but you still won't have to spin it to the moon to make good streetable horsepower. 

Good luck man, I've heard of people making in excess of 680 HP with a similar combination with the EZ's on pump gas.

[Chryco Psycho]

Would that be the same for the intakes as well....power curve is based on 440...and would come down a little lower cause of the 500...?

Yes
 I agree with Tubbed , you want to keep up th e port velocity so do not order extremely large port volume heads

[nivvy]

I think you hit it right on the head tubbed440....the heads I was looking mostly at were the EZ cnc295 head that flow 351cfm at .600 lift....that kind of flow will make excess of 700hp..thats all I want..but I imagine after putting on an intake the flow will come down a little...


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