[DeTomaso] Intake Manifolds

Thu Nov 2 15:15:37 EST 2006

I have the A3 heads or else I'd buy a strip dominator.  I figured it would
be easier to find a SD copy that also fills the lower parts of the port than
it would be to fill a SD myself.

I want to compare intakes as an engineering exercise, not because I need
more power.  I'm happy with my Edel A331 intake.  I'm not trying to win drag
races.  I'm just curious how much of a difference one intake will have over
another.

I want to do the same with mufflers, but that's a later dyno day.

When I do the comparison, I want to try to do it all in a day.

> In addition to the A331's you already have, I have both B351 and D351
> intakes here.  To my eye, there isn't much difference between the A331
> and the B351 (both Roush versions).  The primary difference is the A331

Dan - on your intake writeup, you have a picture of a C351 intake.  It looks
very different from an A331.  The runners look larger, longer, and more
spider shaped.  In short, it looks more like a Strip Dominator.  Also - the
plenum from the outside looks very different.  I realize that it's the
inside that matters, but I can only guess from the outside pics.

I've seen two pics of the 4V funnelweb.  One has tongues that fill the
bottom and one side of the intake port.  The other fills the bottom only.
I'm assuming that's a later intake.  The earlier intake looks like it's
coated in a weird silvery finish.  The later intake looks powder coated in a
gray/aluminum color.

I've also considered the TFC/CHI intake, but I've got to draw the line
somewhere.  After all, this is a hobby and not a job.

-----Original Message-----
From: detomaso-bounces at realbig.com
[mailto:detomaso-bounces at realbig.com]On Behalf Of Donny Williams
Sent: Thursday, November 02, 2006 1:45 PM
To: Daniel C Jones; detomaso at realbig.com
Subject: Re: [DeTomaso] Intake Manifolds

The only non imperical input I can offer, is that I currently run a Strip
Dominator on some CC iron heads that flow 305CFM @ 600lift on a 4inch bore.
626 Solid roller... It is wicked strong from 3600-7000 RPM.  I ran this
intake with a much milder cam on my old engine and it was every bit as good
on the bottom as the POS dual plane Performer I took off that started
weezing at 5000 RPM.

That said, I bracket race another brand.  My findings on intake swaps
between known tested reviewed good aftermarket intakes is there is just not
that much on the table.  The only real data I would conclude from is the
same engine, same dyno, same day tests...........If that is what your
measuring a decision on.

My obeservation on the intakes being discussed (Funnel Web-Blue Thunder etc)
for the Cleveland is that most of them are clearly patterned after the Strip
Dominator, give or take some minor port size changes, and some newer voodoo
down in the runners.  They appear hair splitting simular.  The Strip
Dominator can be updated anyway you want with a port stuffer kit.....and
modyfying runners with epoxy or a grinder.   I believe these others are
patterned after the Strip Dominator for a good reason.  In its time it was
legendary and proven, there was not a better performing intake made for the
Cleveland.

To this non emperical end, what I am suggesting short of the fancy alumunum
heads that require a special intake to match them, buy a used Strip
Dominator, you will not only save alot of money, but will like the
performance it offers for a street car. If we were running a top fuel
dragster some of this hair splitting would be more meaningful....... If you
want every last inch of power or torque out of an intake..simply modify it
to your liking....

I think Ron Larsen is still licking his ass for selling me his Strip
Dominator..............It was one of the better bang for $150 I ever
spent.............And that is why I am reccomending it.

----- Original Message -----
From: "Daniel C Jones" <daniel.c.jones2 at gmail.com>
To: <detomaso at realbig.com>
Sent: Thursday, November 02, 2006 10:53 AM
Subject: Re: [DeTomaso] Intake Manifolds

>> How might the Parker Funnelweb fit into this.
>
> The Funnelweb is a reduced port cross section designed to be used with a
> set of matching cylinder head port stuffers that both raise the intake
> port
> floors and narrow the ports.  Theoretically, that will allow the engine to
> have a wider torque band that the Strip Dominator.
>
>> This article (may not have been a fair test?) showed that it outperformed
>> the Strip Dominator over 4,000 RPM:
>
> Notice the Funnelweb is taller than the Strip Dominator.  One of the guys
> on the Cleveland forum presented the results of a test with several of
> the Aussie intakes and a Strip Dominator.  The results followed intake
> manifold height with the tallest intake making the best peak power.
> IIRC, the spread was not as large as in the FrodMuscle test.  It's
> possible
> that a 2" carb spacer on a Strip Dominator would make up much of the
> difference, at least on the top end.  Be aware that Terry made several
> iterations of the Funnelweb.  Presumably the later versions are better.
>
>> I'm interested in trying a FunnelWeb 4V on my A3 heads.  It looks like
>> it's shaped like a Roush A331 with A3 sized ports.
>
> The ports are somehwat less wide than A3.  I know someone who has one
> and might be able to get the port info from him, if you'd like.
>
>> The dyno session I want to do is my engine (stock 351C short block,
>> CompCams 282S, A3 heads), with Edel A331, Roush A331, and FunnelWeb
>> 4V intakes.
>>
>> I'm also interested in the A351/B351 intakes. They look like they're
>> made like the Strip Dominator.  I'm curious how they perform.  I'm
>> probably not curious enough to fork over $500 to buy one, but maybe
>> I will once I resolve my FunnelWeb curiosity.
>
> In addition to the A331's you already have, I have both B351 and D351
> intakes here.  To my eye, there isn't much difference between the A331
> and the B351 (both Roush versions).  The primary difference is the A331
> has the end seal shape for 351C blocks while the B351 has the overhang
> for Cleveland, Windsor and race blocks.  However, there is a functional
> difference between the D351 (Edelbrock) and the A331 or B351.  If you
> look at the plenum floor of th A331 and B351, they are high with the
> runners sloping downwards.  The D351 has a lower plenum floor with less
> slope runners.  According to the Motorsport catalog, the D351 was a
> short track intake and the B351 a speedway intake.
>
> I would be willing to loan the intakes out for your dyno test.
> The other intake that fits your combo is the Edelbrock Victor AHII.
> I have one those, too.  It's currently unavailable but might be
> available by the time you do your dyno test.
>
> Speaking of dyno tests, I have one coming up soon for a 408C and
> would like to compare a full length set of 4V headers (perhaps from
> a Mustang or similar vehicle) against the usual Pantera headers.
> I have a couple sets of Pantera headers.  Anyone have a set of
> full length headers they'd be willing to loan out?
>
> Dan Jones
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