One other item to keep in the equation is the intake tube size. A smaller
tube will give you better offline performance but will cut out (peak) at the
top end. If you haven't noticed this, the K&N/Mopar Gen-II Intake System
uses a 4" tube and a 6"x9" cone. This system will flow almost 900CFM. Our
trucks use a TB that will flow up to (approx.) 600CFM on the V8's.
(Modified...they'll flow even more.) However, 900CFM is a lot for a stock
(or even slightly modified) engine and we'll never see that high anyway
unless we're pushing 5500+ RPM's. For everyday applications
(Street/Strip/Offroad), Tony's system is more than adequate.
>From personal experience:
"Home-Brew" (3" PVC Pipe): Great throttle response runs better than factory
up to the limiter
K&N Gen-II (4" Tube): Same as above but pulls harder from 2500+RPM
Tony, Have you tried a 4" tube yet? Fernco makes adapters that fit the
stock airhat to a 4" tube
- Bernd
-----Original Message-----
From: owner-dakota-truck@buffnet.net
Subject: Re: DML: RE: Intense Performace Cone Filters
Here's what Tony sent in on Wed, 31 May 2000 23:29:01 -0700:
Actually, the larger the filter.....the better the flow in the top end.
If you listen to the pitch the filter makes.....you can kind of tell how
its
flowing........okay......maybe i spend toooo much time dealing with intakes
and tbs.
The smaller filters will give you great throttle response......but they
will
peak out way to early. The pitch will change at below cruising speeds.
The filter I include with the kits is a 9" filter. It gives great
throttle
response and off the line performance.......and yet will still flow great
til
about 90mph.....then the pitch changes. It still flows above that.....but
not
as great......but hell, the truck is about to shut down at that speed
anyway.
A smaller filter will probably peak out around 45 or 50mph.
After we took my motor apart.....and did the cam, heads, modified the
plenum.....along with all the other bolt on stuff........the 9" filter
started peaking out much earlier. I then tried a 12" filter......its not
as
great off the line....but it flows much better on the top end. I still run
around with the 9" though......if I am going to go on a long high speed
run.......I will put the bigger filter on to try to help with the mileage.
If you guys are going to be charged that much for a cone
filter..........email
me.....I buy them in bulk.....So I can get them delivered to you for much
less
that those prices. just email me......now that I am working....it might
take
a few days for me to get back to you ....but I will get back to you......I
promise.
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