Re: Mag Ported Head ?

From: Chad Evans (hemidak@msn.com)
Date: Wed Mar 19 2003 - 21:14:59 EST


you are not comparing apples to apples
one is a ported head the other is not.
test them both out of the box then ask again!

----- Original Message -----
From: "TJ" <dakota52318@toad.net>
To: <dakota-truck@dakota-truck.net>
Sent: Wednesday, March 19, 2003 8:47 PM
Subject: DML: Mag Ported Head ?

>
> OK, gotta question here... according to my reading, if you can get 2 heads
> to flow the exact same numbers (230cfm) at say, 28"... one having a 153cc
> intake port w/ a 1.97" valve, and the other having a 180cc port w/ a 1.92
> valve, the head with the 153cc port is better because it will have a
higher
> intake velocity. IS THIS CORRECT??? OR does the intake valve size change
> this theory because according to hughes engines this is the way it
works....
> NOW if you look in the 2001 MP catalog, the 2 heads I just compared were
the
> stock ported mag heads and the R/T heads... the stock ported being the
> better head. How and Why is this??
>
> TJ
> dakota52318@toad.net
> 1992 Dodge Dakota 4X4
> Long Bed, 318, 46RH Auto
> DT Headers, Functional RamAir Hood
> K&N FIPK, Flowmaster Muffler
> Custom Throttle Body
> MP Computer
> 15.74@87.59
> 4350lbs
>



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