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Re: raised venturis on dominator
[Re: Monte_Smith]
#1494648
09/01/13 10:52 PM
09/01/13 10:52 PM
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Joined: Jan 2003
Posts: 5,486
SoCal
Brian Hafliger
master
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master
Joined: Jan 2003
Posts: 5,486
SoCal
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Damn good to see you Monte!
We'll be testing the new Holley Gen3 1050 along with a QF 1050 on a 540 inch BB Mopar in the next couple of weeks. I'll post the info when I have it.
I'm expecting it to be kinda close between the 2 but you never know!
Brian Hafliger
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Re: raised venturis on dominator
[Re: Monte_Smith]
#1494649
09/02/13 01:20 AM
09/02/13 01:20 AM
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Joined: Dec 2006
Posts: 4,647
aotearoa
rebel
master
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master
Joined: Dec 2006
Posts: 4,647
aotearoa
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Quote:
Holley had the raised venturi carbs years ago and now they have a blended radius at the top and there is a reason for that. The raised rings at the top do not flow near as well as the blended radius. It makes the air flow turbulent.
Monte
is this what you are talking about?
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Re: raised venturis on dominator
[Re: rebel]
#1494652
09/02/13 11:31 AM
09/02/13 11:31 AM
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Joined: Aug 2009
Posts: 2,050
Mooresburg, Tn
'72CudaRacer
top fuel
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top fuel
Joined: Aug 2009
Posts: 2,050
Mooresburg, Tn
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Quote:
is this what you are talking about?
I think this is what he's talking about Rebel.
Brian
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Re: raised venturis on dominator
[Re: mopar dave]
#1494654
09/02/13 11:39 AM
09/02/13 11:39 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I never cared for the vertical wall on the inlet.. when I use to flow the carbs or air cleaners we always put a "ideal entry"(basically a velocity stack) on them for a smooth entrance... and if we didnt use it we would see a air flow difference(always less).. this is what I have mounted in my scoop 
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Re: raised venturis on dominator
[Re: mopar dave]
#1494656
09/02/13 12:00 PM
09/02/13 12:00 PM
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Joined: Aug 2009
Posts: 2,050
Mooresburg, Tn
'72CudaRacer
top fuel
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top fuel
Joined: Aug 2009
Posts: 2,050
Mooresburg, Tn
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Quote:
yes,thats what I'm talkin about. have you tried any back to back runs with a smooth top vs the raised venture like the one in your pic?
No, I haven't tried them back to back. We made 3 dyno pulls with it, and put it back in the box. (not on my engine) Health reasons and the weather here (RAIN) have kept me from testing it against my other 1050 Holley. I actually have this carb for sale in the Moparts adds now. I will make someone a deal on it. The Black Diamond finnish looks Killer though.
Brian
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Re: raised venturis on dominator
[Re: fbs63]
#1494657
09/02/13 12:04 PM
09/02/13 12:04 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
From what I understand and have been told the purpose is to get the boosters lower in the throttle bore to increase the signal. In turn it atomizes the fuel better. Take a look at a Dam-Best billet carb and see how tall the body is.
Its true that if you move the booster down in the
faster air flow its sees a stronger signal... but to
bandage it with a vertical wall isnt helping the entry
air flow... so if the carb were built taller with
the boosters down in and with a smooth radius on
top then it would be great... but most people tend
to run out of room to the hood.... thats why the old
long stacks worked (gave the carb a tall entry to
speed up the air)
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Re: raised venturis on dominator
[Re: mopar dave]
#1494662
09/02/13 01:02 PM
09/02/13 01:02 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
something R2C told me was in their testing of air cleaners,filters as well as others,that the worst was the filter lids. just an fyi.
Yeah I heard that the lids are bad also.... but what
do I have... a filter lid(the whole filter set up was
cheap so I got it)... I'm still planning on getting
a lid.. to my understanding and through testting in
the past... with the 2 different air flow entrances
they crash into each other and cause turbulence in
the flow.... air... like water want to be nice and
smooth without turns or obstacles
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