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Author Topic:   air gap
two89w
Gearhead

Posts: 144
From: sydney australia
Registered: Sep 2002

posted 12-10-2002 05:23 AM     Click Here to See the Profile for two89w   Click Here to Email two89w     Edit/Delete Message   Reply w/Quote
has anybody used an air gap manifold on a 351/408 windsor? i am trying to make a choice between rpm air gap and vic jnr

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Mpcoluv
Gearhead

Posts: 834
From: Charlotte NC usa
Registered: Apr 2001

posted 12-10-2002 06:37 AM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
5.oooh magazine did a test on a moderate 393w last year.
If you believe magazines, the air gap made more midrange torque, but the Victor Jr made about 8 more hp on the top end.
It really depends on your combination.
Both would work work well on a street/strip cae, with the scales going toward the Vic Jr for the more radically cammed engines.

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two89w
Gearhead

Posts: 144
From: sydney australia
Registered: Sep 2002

posted 12-11-2002 12:21 AM     Click Here to See the Profile for two89w   Click Here to Email two89w     Edit/Delete Message   Reply w/Quote
definition of radical?

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steve'66
Gearhead

Posts: 5659
From: Sonoma,CA,USA
Registered: Mar 2000

posted 12-11-2002 12:46 AM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
That many inches need a Vic Jr.

SteveW

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two89w
Gearhead

Posts: 144
From: sydney australia
Registered: Sep 2002

posted 12-11-2002 01:39 AM     Click Here to See the Profile for two89w   Click Here to Email two89w     Edit/Delete Message   Reply w/Quote
......

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V8 Thumper
Gearhead

Posts: 2991
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 12-11-2002 07:07 AM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by steve'66:
That many inches need a Vic Jr.

SteveW


I'll second that I chose the AirGap because I've got 75 fewer cubes to work with. On a 'little' motor, it's having your cake and eating it too; crisp bottom end power and screams all the way to 7k

------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"

All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html

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68DARKHORSE
Gearhead

Posts: 290
From: Austin, Tx
Registered: Aug 2002

posted 12-11-2002 10:41 AM     Click Here to See the Profile for 68DARKHORSE   Click Here to Email 68DARKHORSE     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by V8 Thumper:
I chose the AirGap because I've got 75 fewer cubes to work with.


The Air Gap for the bigger engine is designed for the bigger engine.

If the 302 Air Gap works on a 331, then the 351 intake should work on a 408.

My car will get more street time than track time. My combo is 408, Victor Jr heads, Air Gap, and undetermined cam to operatate 2000-6500. If I were building a race car I would use Sr heads with a single plane intake.

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