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Author Topic: anybody know CFM of 42DCNF with typical venturi (34-36mm)?  (Read 15397 times)
Jim Ratto
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« on: January 07, 2009, 00:55:18 am »

Thank you

Jim
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John Rayburn
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Der Kleiner Panzers


« Reply #1 on: January 07, 2009, 02:58:09 am »

No.
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I also park at Nick's.
nicolas
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« Reply #2 on: January 08, 2009, 12:36:07 pm »

no idea but i have mine setup with 34 vents. i think that came standard.
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Walter H
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« Reply #3 on: January 10, 2009, 06:47:23 am »

Hi Jim,

According to an old Gene Berg catologue, he states the '42dcnf flows 515 CFM, the '44dcnf flows 530 CFM and the almighty 48 IDA with 37 venturis  flows 540 CFM. These are expressed in terms of each.          Walt
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Dustin
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« Reply #4 on: January 12, 2009, 07:45:45 am »

FYI to anyone that was curious about this thread... I may be selling my 42's soon. Mine are 34mm vents with 180 air, F25 emulsion, 140 main and 60 idle. They were rebuilt and Berg-ified last June with Berg velocity stacks and non-Berg Type 1 aluminum manifolds and K&N oval filters. About 6K miles on them, driven daily in So. Cal.

Sorry for the hijack... we now return to our previous thread already in progress...
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Der Kleiner Panzers III
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'69 Tangerine Orange Karmann Ghia- In progress
'66 Marina blue Chevy II Nova Hardtop- Project mothballed
Jim Ratto
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« Reply #5 on: January 12, 2009, 17:05:44 pm »

coming to the dark side Dustin? meet my girlfriend...IDA
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Dustin
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« Reply #6 on: January 13, 2009, 06:00:56 am »

Is she hot?

I like her bangs! 

 Grin Grin Grin
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Der Kleiner Panzers III
www.dkpcarclub.com

'69 Tangerine Orange Karmann Ghia- In progress
'66 Marina blue Chevy II Nova Hardtop- Project mothballed
Rennsurfer
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« Reply #7 on: January 13, 2009, 06:27:02 am »

Dustin, how much are you asking for your Webers? If you'd like to take this conversation offlist, please shoot me a private message and/or an e-mail:

mark(at)teamgoon(dot)com

Thanks in advance.
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John Rayburn
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Der Kleiner Panzers


« Reply #8 on: January 13, 2009, 06:36:44 am »

Your welcome, Mark!
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I also park at Nick's.
Rennsurfer
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D.B.O. Not a club; a state of mind.


« Reply #9 on: January 13, 2009, 06:59:57 am »

Your welcome, Mark!

We're sorry to inform you, Mister Rayburn that your sentence (above) makes no sense.

*You're

 Grin

Thanks for playing... tell him what he's won, Jim.
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Jim Ratto
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« Reply #10 on: January 13, 2009, 17:32:08 pm »

do the chickens have large talons?
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John Rayburn
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« Reply #11 on: January 13, 2009, 20:12:19 pm »

Your welcome, Mark!

We're sorry to inform you, Mister Rayburn that your sentence (above) makes no sense.

*You're

 Grin

Thanks for playing... tell him what he's won, Jim.

                                                                   Sorry, Mark. You're NOT welcome, then Cheesy
do the chickens have large talons?
                                                                 That depends on what part of the country they're from. And I finally found a Weber match ,no thanks to you. Thanks for nothing!
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Jim Ratto
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« Reply #12 on: January 13, 2009, 20:42:43 pm »

you make a nice roast beef sandwich with your match?

 Kiss
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John Rayburn
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Der Kleiner Panzers


« Reply #13 on: January 13, 2009, 23:00:36 pm »

I think that sweater is tied around your neck just a little to tight today!
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Jim Ratto
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« Reply #14 on: January 13, 2009, 23:44:51 pm »

I think that sweater is tied around your neck just a little to tight today!

is that why my face is purple?
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John Rayburn
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« Reply #15 on: January 13, 2009, 23:56:28 pm »

No, that's your Nigerian family genes. That's also why you get picked on all the time. Cheesy Cheesy Cheesy Cheesy
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Jim Ratto
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« Reply #16 on: January 14, 2009, 00:06:01 am »

 Cool
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Carlos De Alba
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« Reply #17 on: January 14, 2009, 00:22:12 am »

No, that's your Nigerian family genes. That's also why you get picked on all the time. Cheesy Cheesy Cheesy Cheesy

 Roll Eyes Roll Eyes
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Der Kleiner Panzers
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D.B.O. Not a club; a state of mind.


« Reply #18 on: January 14, 2009, 02:30:18 am »

I think that sweater is tied around your neck just a little to tight today!

HAHAHAHAHAHAHAHAHAHAHAHAHAHAHA!!! Okay... just spit water out, everywhere. Thanks, John.

Now, back to the original question; Dustin, how much for the Webers?
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Dustin
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« Reply #19 on: January 14, 2009, 04:16:06 am »

WOW!! I thought I hijacked the thread!

Mark, I'll shoot you a email tonight or tomorrow afternoon.
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Der Kleiner Panzers III
www.dkpcarclub.com

'69 Tangerine Orange Karmann Ghia- In progress
'66 Marina blue Chevy II Nova Hardtop- Project mothballed
Rennsurfer
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Posts: 7391


D.B.O. Not a club; a state of mind.


« Reply #20 on: January 14, 2009, 04:18:51 am »

WOW!! I thought I hijacked the thread!

HAHA!! Nope... you're doing good, Dustin. Welcome to Off Topic; the first rule is; there's no rules.

Mark, I'll shoot you a email tonight or tomorrow afternoon.

Right on... thanks!
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"You can only scramble an egg so many ways."
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John Rayburn
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Der Kleiner Panzers


« Reply #21 on: January 14, 2009, 05:04:28 am »

Your welcome, Mark!
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I also park at Nick's.
Rennsurfer
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D.B.O. Not a club; a state of mind.


« Reply #22 on: January 14, 2009, 05:21:45 am »

Your welcome, Mark!

Again?

Step AWAY from the pintura fumes.

 Grin
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"You can only scramble an egg so many ways."
~Sarge
John Rayburn
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Der Kleiner Panzers


« Reply #23 on: January 14, 2009, 06:20:07 am »

Not a chance!
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I also park at Nick's.
Tony M
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« Reply #24 on: January 14, 2009, 23:23:14 pm »

It must be 420, it's a 42 right - just add the 0 and presto - " 420 "
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Dustin
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« Reply #25 on: January 15, 2009, 02:47:34 am »

It must be 420, it's a 42 right - just add the 0 and presto - " 420 "

DUDE...... SWEET......... DUDE!!!
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Der Kleiner Panzers III
www.dkpcarclub.com

'69 Tangerine Orange Karmann Ghia- In progress
'66 Marina blue Chevy II Nova Hardtop- Project mothballed
lawrence
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« Reply #26 on: January 15, 2009, 19:00:08 pm »

Hi Jim,

According to an old Gene Berg catologue, he states the '42dcnf flows 515 CFM, the '44dcnf flows 530 CFM and the almighty 48 IDA with 37 venturis  flows 540 CFM. These are expressed in terms of each.          Walt


Dual IDAs flow 1080 CFM. That is pretty crazy. I wonder if a domestic 4 barrel carb of similar CFM would give the same performance. Anyone have some incite on this Huh Amazing how well the IDA works on the flat 4.
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"Happiness is a Hot VW!"
Jim Ratto
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« Reply #27 on: January 15, 2009, 19:07:02 pm »

Hi Jim,

According to an old Gene Berg catologue, he states the '42dcnf flows 515 CFM, the '44dcnf flows 530 CFM and the almighty 48 IDA with 37 venturis  flows 540 CFM. These are expressed in terms of each.          Walt


Dual IDAs flow 1080 CFM. That is pretty crazy. I wonder if a domestic 4 barrel carb of similar CFM would give the same performance. Anyone have some incite on this Huh Amazing how well the IDA works on the flat 4.

It all has to do with plenum (typical V8) vs independent runner (high perf VW and most highly tuned European sports engines).
A IR situation ony allows one cylinder to pull from its intake runner and carb throat. A V8 with a tunnel ram lets any cylinder that is on intake stroke to pull from the sky through any and all of those 4bbl or (8bbl if double carbs are used). A lot of guys see dual Webers on a Bug and say it's "overcarburated"...  sure sign that they don't know how Webers (or engines ) work.
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Jim Ratto
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« Reply #28 on: January 15, 2009, 19:12:27 pm »

WOW!! I thought I hijacked the thread!

Mark, I'll shoot you a email tonight or tomorrow afternoon.

have you been to Taft, CA to see the UFO's land?
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lawrence
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« Reply #29 on: January 15, 2009, 19:39:49 pm »

Yeah, i figured as much, but wanted to get some imput. So, is each barrel technically pulling only 270 CFM?
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"Happiness is a Hot VW!"
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