[DeTomaso] Pantera
Daniel C Jones
daniel.c.jones2 at gmail.com
Fri Mar 4 09:51:08 EST 2022
> I will let Dan Jones tell you what the performance ramifications of this
switch would be, but I’m willing to bet it would be unnoticeable. If
anything you might even pick up low-end torque?
The Edelbrock F-351 preceded the Edelbrock Performer 4V. Functionally,
they make the same power as the ports and plenum are the same. The only
difference is the F-351 retains the OEM style choke well and the Performer
does away with it. The Performer and F-351 have a fully divided plenum
that does tend to make better power at low RPM. The Performer RPM Air Gap
has a notched divider that works better at higher RPM. On an otherwise
stock or near stock engine, there's not a huge difference particularly when
the RPM Air Gap intake is compromised by a drop base air cleaner that puts
the top cover up against the carb vents. You can improve the overall
performance of the F-351 and Performer by using a 1" hybrid spacer (oval on
one side, 2 holes on the other). The oval side goes over the upper plenum
and the 2 hole side over the lower plenum.
Note the Performer 4V is out of stock with an estimated ship date of
5/2/2022. I should have a spare F-351 here in excellent shape. If you are
interested, I'd be willing to trade it plus whatever the difference in cost
is between an RPM Air Gap and a Performer 4V. I can use the RPM Air Gap
for the 351C dyno project as I'm gathering parts to test 2V heads.
Dan Jones
On Thu, Mar 3, 2022 at 8:55 PM Mike Drew via DeTomaso <
detomaso at server.detomasolist.com> wrote:
> Fred,
>
> The Performer RPM is a tall tarantula-style 2V intake whose port size is
> mismatched too your 4V heads. It is very, very good but that goodness comes
> with a price—tall height.
>
> I be,I’ve some people have had success machining the top of the intake to
> both lower it, and make it flat, but your best bet is probably to just
> replace it with the regular Edelbrock Performer 4V, which has a much
> shorter profile that matches the stock intake. Part number 2665.
>
> This change alone would probably give you the necessary clearance, but if
> not it would then be a simple matter to fit a drop base.
>
> I will let Dan Jones tell you what the performance ramifications of this
> switch would be, but I’m willing to bet it would be unnoticeable. If
> anything you might even pick up low-end torque?
>
> Cheers!
>
> Mike
>
> Sent from my iPad
>
> > On Mar 3, 2022, at 12:22, Fred Sweeney <fred at creekspeak.com> wrote:
> >
> > Intake Setup: I want to return to a low-rise set up to fit under the
> > engine screen. I hope I've supplied enough info for you to know what I
> > am running now.
> >
> > 1. Car: Early 1972. The engine screen is without the center hump.
> >
> > 2. Intake: High rise Edelbrock RPM #7564 Air Gap (?).
> >
> > 3. Filter: K&N 11" x 2" with slightly domed top.
> >
> > 4. Carb: Preform 650 with electric choke (choke mentioned for clearance
> > reasons if a dropdown base is needed.)
> >
> > My Autolite is shot. Have my old intake. Would like to use the Preform
> > carb if possible. Please let me know what setup I need. Open to an
> > all-new combo if necessary. Sources?
> >
> > Thanks in advance for your troubles.
> > Fred Sweeney
> > [1]fred at creekspeak.com
> >
> > References
> >
> > 1. mailto:fred at creekspeak.com
> > _______________________________________________
> >
> >
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>
>
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> Posted emails must not exceed 1.5 Megabytes
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-------------- next part --------------
> I will let Dan Jones tell you what the performance ramifications of
this switch would be, but Iam willing to bet it would be unnoticeable.
If anything you might even pick up low-end torque?
The Edelbrock F-351 preceded the Edelbrock Performer 4V.A
Functionally, they make the same power as the ports and plenum are the
same.A The only difference is the F-351 retains the OEM style choke
well and the Performer does away with it.A The Performer and F-351
have a fully divided plenum that does tend to make better power at low
RPM.A The Performer RPM Air Gap has a notched divider that works
better at higher RPM.A On an otherwise stock or near stock engine,
there's not a huge difference particularly when the RPM Air Gap intake
is compromised by a drop base air cleaner that puts the top cover up
against the carb vents.A You can improve the overall performance of
the F-351 and Performer by using a 1" hybrid spacer (oval on one side,
2 holes on the other).A The oval side goes over the upper plenum and
the 2 hole side over the lower plenum.
Note the Performer 4V is out of stock with an estimated ship date of
5/2/2022.A I should have a spare F-351 here in excellent shape.A If
you are interested, I'd be willing to trade it plus whatever the
difference in cost is between an RPM Air Gap and a Performer 4V.A I
can use the RPM Air Gap for the 351C dyno project as I'm gathering
parts to test 2V heads.
Dan Jones
On Thu, Mar 3, 2022 at 8:55 PM Mike Drew via DeTomaso
<[1]detomaso at server.detomasolist.com> wrote:
Fred,
The Performer RPM is a tall tarantula-style 2V intake whose port
size is mismatched too your 4V heads. It is very, very good but that
goodness comes with a priceatall height.
I be,Iave some people have had success machining the top of the
intake to both lower it, and make it flat, but your best bet is
probably to just replace it with the regular Edelbrock Performer 4V,
which has a much shorter profile that matches the stock intake. Part
number 2665.
This change alone would probably give you the necessary clearance,
but if not it would then be a simple matter to fit a drop base.
I will let Dan Jones tell you what the performance ramifications of
this switch would be, but Iam willing to bet it would be
unnoticeable. If anything you might even pick up low-end torque?
Cheers!
Mike
Sent from my iPad
> On Mar 3, 2022, at 12:22, Fred Sweeney <[2]fred at creekspeak.com>
wrote:
>
> i>>?A A Intake Setup: I want to return to a low-rise set up to
fit under the
>A A engine screen. I hope I've supplied enough info for you to
know what I
>A A am running now.
>
>A A 1. Car: Early 1972. The engine screen is without the center
hump.
>
>A A 2. Intake:A High rise Edelbrock RPM #7564 Air Gap (?).
>
>A A 3. Filter: K&N 11" x 2" with slightly domed top.
>
>A A 4. Carb: Preform 650 with electric choke (choke mentioned for
clearance
>A A reasons if a dropdown base is needed.)
>
>A A My Autolite is shot. Have my old intake. Would like to use the
Preform
>A A carb if possible. Please let me know what setup I need. Open
to an
>A A all-new combo if necessary. Sources?
>
>A A Thanks in advance for your troubles.
>A A Fred Sweeney
>A A [1][3]fred at creekspeak.com
>
> References
>
>A A 1. mailto:[4]fred at creekspeak.com
> _______________________________________________
>
>
> Detomaso Email List is not managed by POCA
> Posted emails must not exceed 1.5 Megabytes
> DeTomaso mailing list
> [5]DeTomaso at server.detomasolist.com
> [6]http://server.detomasolist.com/mailman/listinfo/detomaso
>
> To manage your subscription (change email address, unsubscribe,
etc.) use the links above.
>
> Members who post to this list grant license to the list to forward
any message posted here to all past, current, or future members of
the list. They also grant the list owner permission to maintain an
archive or approve the archiving of list messages.
_______________________________________________
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the list. They also grant the list owner permission to maintain an
archive or approve the archiving of list messages.
References
1. mailto:detomaso at server.detomasolist.com
2. mailto:fred at creekspeak.com
3. mailto:fred at creekspeak.com
4. mailto:fred at creekspeak.com
5. mailto:DeTomaso at server.detomasolist.com
6. http://server.detomasolist.com/mailman/listinfo/detomaso
7. mailto:DeTomaso at server.detomasolist.com
8. http://server.detomasolist.com/mailman/listinfo/detomaso
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