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What is it about the growl from a pair of IDAs?
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Topic: What is it about the growl from a pair of IDAs? (Read 15019 times)
javabug
Hero Member
Posts: 2103
WHAT'S UP WID DA BOOM BOOM???
Re: What is it about the growl from a pair of IDAs?
«
Reply #30 on:
December 15, 2007, 23:12:12 pm »
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Mike H.
Sven was right.
Sarge
Hero Member
Posts: 4345
Re: What is it about the growl from a pair of IDAs?
«
Reply #31 on:
December 15, 2007, 23:22:41 pm »
.....ROFL!
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DKP III
Black Sheep
Hero Member
Posts: 2693
less is more
Re: What is it about the growl from a pair of IDAs?
«
Reply #32 on:
December 16, 2007, 00:00:32 am »
Could you please warn me when your going to do something like that . Now how do you go about explaining that one to my little girl
Logged
Stick with what you know works .
13.03 @ 98mph
Martin Greaves
Hero Member
Posts: 1740
10.88@128.58
Re: What is it about the growl from a pair of IDAs?
«
Reply #33 on:
December 16, 2007, 00:10:36 am »
Quote from: 49-rag on December 16, 2007, 00:00:32 am
Could you please warn me when your going to do something like that . Now how do you go about explaining that one to my little girl
Lynne not that little Glenn.
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Hahaha your killing me.........
58vw
Hero Member
Posts: 520
Re: What is it about the growl from a pair of IDAs?
«
Reply #34 on:
December 16, 2007, 05:39:37 am »
i dated a girl that just went crazy at the sound of them carbs howlin.....got lucky alot.......
damn....i miss her
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www.4inbore.com
Angleflows...order them now
stealth67vw
Hero Member
Posts: 2261
Re: What is it about the growl from a pair of IDAs?
«
Reply #35 on:
December 16, 2007, 06:08:30 am »
To get the most auditory effect out of your IDAs build a small engine with a big friggin cam and floor it way under the power band of the cam. It'll make the hair stand up on the back of your neck until it gets "on" the cam.
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John Bates
JB Machining Services
1967 street bug 2020lbs w/driver
12.34 @ 108 mph 1/4
7.76 @ 89mph 1/8
fastfred
Full Member
Posts: 146
Re: What is it about the growl from a pair of IDAs?
«
Reply #36 on:
December 16, 2007, 14:08:50 pm »
i still have some sweatshirts and tshirts for sale to show off your preference for italy's loudest carbs from bologna... contact me at
fastfred@autobahn.be
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FREDDYFILES 2012 on MARCH 11th !
Jim Ratto
Hero Member
Posts: 7121
Re: What is it about the growl from a pair of IDAs?
«
Reply #37 on:
December 16, 2007, 18:26:14 pm »
Quote from: ruff on December 15, 2007, 12:51:07 pm
hi guys,
i ll be using efi,
but want a that bark as well
what is it that the IDAs make louder ?
what do you think?
honestly, and I know this sounds weird, but I think the venturi makes all the difference. Seem like 48's with "smallish" vents really REALLY bark, almost like a pierceing snap. I think the venturi makes the carb kind of like a horn or a reed instrument. the air passing through vent makes a harmonic vibration we can hear. I don't know, I'm not a scientist. Just a guess.
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lawrence
Hero Member
Posts: 732
Re: What is it about the growl from a pair of IDAs?
«
Reply #38 on:
December 16, 2007, 20:45:05 pm »
Quote from: stealth67vw on December 16, 2007, 06:08:30 am
To get the most auditory effect out of your IDAs build a small engine with a big friggin cam and floor it way under the power band of the cam. It'll make the hair stand up on the back of your neck until it gets "on" the cam.
You are right, John. 1914, 86b and 48s
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"Happiness is a Hot VW!"
Tony M
Hero Member
Posts: 544
Re: What is it about the growl from a pair of IDAs?
«
Reply #39 on:
December 16, 2007, 20:52:25 pm »
hey jim it think you hit a good one here - and you were woried
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Life is too fast to drive a slow VW
j-f
Hero Member
Posts: 1609
Jean-François
Re: What is it about the growl from a pair of IDAs?
«
Reply #40 on:
December 16, 2007, 21:31:46 pm »
This morning, a friend call me because he will start his race car. 6 longs years of sleeping...
Engine is a type 4 2.4l. 48IDA, one off exhaust, 214hp on the dyno. Built to run endurace race.
Men, the sound of this engine reving in the garage
. how could you not fall in love off this. 15min off happiness.
I hope next time he will repair the gearbox and go for a ride
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Zach Gomulka
Hero Member
Posts: 6991
Don't piss down my back and tell me it's raining.
Re: What is it about the growl from a pair of IDAs?
«
Reply #41 on:
December 17, 2007, 17:11:19 pm »
Quote from: The Ideaman on December 15, 2007, 21:02:04 pm
Dells sound like there is a bird under the decklid at idle. Chirp,chirp.
No kidding! IDFs sound the same way.
IDAs and Kadrons sound the meanest!
Logged
Born in the '80s, stuck in the '70s.
Ivan
Hero Member
Posts: 558
Re: What is it about the growl from a pair of IDAs?
«
Reply #42 on:
January 09, 2008, 12:37:55 pm »
Quote from: luftkafer on December 15, 2007, 19:32:22 pm
I remember back in 1999 I was part of the "Return to the Fatherland" tour. The cars were off loaded in England and we had an appointment the next day at Stanford Hall (?).
Of course there were several Brits welcoming us. Ivan from VolksWorld fame was there with his white 63 Ragtop. A buddy of his grabbed the keys and I asked for a ride. We took off down the road and he let into the gas pedal. At first I thought someone was shooting a machine gun at us!!! But it was the sound of the two 48!!! Damn!!! I have to get me a pair of those! I was hooked, period
Erich
I remember that mission Erich!
You had a good blast in my old '63 Ragtop, didn't you?! I can remember you being a changed man when you came back from that e-ticket ride!
That car is now owned by Matt Sanchez, but I still have that motor - it's now in my '67. Since then it has had a bit of reworking done to it, but it's still basically the same Gene Berg 78mm forged crank, Carrillo rods, FK10 bottom end. The heads are VW040 by Mary at Pauter Machine. The Berg rockers have gone and I've replaced the 48IDAs that were on it with NOS Italian stallions.
I can also remember the beer flowed freely that night and this in turn lead to some of us spiraling off into oblivion. I also won't ever forget the next morning when driving to Stanford Hall, in the usual spirited manner, and nearly loosing the '63 at speed half way through a fast right hand bend - I think the fact the passenger door window was my windshield at one point should give you an idea of how close we were to becoming part of the scenery...
I don't think I've ever come as close to thinking it was all over in a VW. After coming out of it in one piece - I turned and looked at my friend Ben Lawrence who was a whiter shade of pale in the passenger seat, held my nose to help me do my best Raymond Babbitt impersonation and said "Of course, I'm an excellent driver" - We laughed for about five minutes!
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Jason Foster
Hero Member
Posts: 1255
7.69 87mph 12.35 106 mph
Re: What is it about the growl from a pair of IDAs?
«
Reply #43 on:
January 09, 2008, 21:35:27 pm »
honestly, and I know this sounds weird, but I think the venturi makes all the difference. Seem like 48's with "smallish" vents really REALLY bark, almost like a pierceing snap. I think the venturi makes the carb kind of like a horn or a reed instrument. the air passing through vent makes a harmonic vibration we can hear. I don't know, I'm not a scientist. Just a guess.
[/quote]
I think you might be on to something there I run 37 vents. in mine and I love the "bark" great thread.
hmmm maybe this is what Cal Look means.....
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STRENGTH THROUGH JOY...........
Der Kleiner Panzers
Diederick/DVK
Hero Member
Posts: 3692
They're never done till they're sold
Re: What is it about the growl from a pair of IDAs?
«
Reply #44 on:
January 09, 2008, 23:46:59 pm »
37mm vents in such a large engine?
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Diederick
-
Proud member of:
DVK ~
Der Vollgas Kreuzers
Jason Foster
Hero Member
Posts: 1255
7.69 87mph 12.35 106 mph
Re: What is it about the growl from a pair of IDAs?
«
Reply #45 on:
January 10, 2008, 05:08:55 am »
yup, 180 mains 50 idles F11 emulsions dont remember airs. FK10 it rarely sees more than 6500rpm
never have tuned it for the track. Since my trans is geared so tall.
Logged
STRENGTH THROUGH JOY...........
Der Kleiner Panzers
Dave Galassi
Sr. Member
Posts: 342
Re: What is it about the growl from a pair of IDAs?
«
Reply #46 on:
January 10, 2008, 06:48:53 am »
Quote from: deano on December 15, 2007, 02:44:13 am
I find that the more overlap the cam has, the more compression (of course), the louder the IDAs. Also, EFI dual throttle bodies are too quiet for my ears.
honestly, and I know this sounds weird, but I think the venturi makes all the difference. Seem like 48's with "smallish" vents really REALLY bark, almost like a pierceing snap. I think the venturi makes the carb kind of like a horn or a reed instrument. the air passing through vent makes a harmonic vibration we can hear. I don't know, I'm not a scientist. Just a guess.
[/quote]
I wish my EFI was quiet Dean. Maybe it's that big engine bay..........
I don't think that sounds weird at all, Uncle Jim. Having spent some time in the back of Allen's vert two weeks ago and with the time I've spent driving the truck, both 2110's with EFI, the sound is the same, but different from a 48 motor in that I didn't hear what I thought was the air going past the venturis. The throatiness is there, though, to me.
Logged
Jon
Administrator
Hero Member
Posts: 3214
12,3@174km/t at Gardermoen 2008
Re: What is it about the growl from a pair of IDAs?
«
Reply #47 on:
January 10, 2008, 10:20:59 am »
Quote from: Dave Galassi on January 10, 2008, 06:48:53 am
I don't think that sounds weird at all, Uncle Jim. Having spent some time in the back of Allen's vert two weeks ago and with the time I've spent driving the truck, both 2110's with EFI, the sound is the same, but different from a 48 motor in that I didn't hear what I thought was the air going past the venturis. The throatiness is there, though, to me.
The throatiness comes from the Size of the engine and the separate runners, so it should be the same for all similar sice carbs. But the higher tones, like the "hiss" sounds I think comes from the layout on the rest of the parts in the IDA, that would not be the same in an efi motor.
And those noises is part of the "crazy" feel you get when you are flooring a IDA engine.
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Grumpy old men have signatures like this.
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