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Main : Mechanical : Engine Dual Downdraft Webers

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Dual Downdraft Webers
Dual Downdraft WebersPopular
SubmitterddgonzalMore Photos from ddgonzal   Last Update2008/5/17 8:52    Tell a friendTell a friend
Hits3783  Comments11    0.00 (0 votes)0.00 (0 votes)
Ernie's A15

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The comments are owned by the poster. We aren't responsible for their content.

Poster Thread
ddgonzal
Posted: 2008/5/17 18:50  Updated: 2008/5/17 18:50
Moderator
Joined: 2001/5/3
From: 48 North
Posts: 31575
 Re: Dual Downdraft Webers
This is an A15 engine with a big cam. Ernie runs the 1/8 mile, I forget the time but it is equivalent to a 15.7 second 1/4.

It sounds a treat at 8000 RPM. Very nice smooth wail when he raps the throttle.

Poster Thread
steveo
Posted: 2008/5/18 5:04  Updated: 2008/5/18 5:04
No life (a.k.a. DattoMaster)
Joined: 2003/10/13
From: newcastle, NSW
Posts: 1691
 Re: Dual Downdraft Webers
WTF????

I have heard that you can get twin down draughts but never actually seen them, Are these a factory item? or are they custom?

I'll bet that they sound awesome at full throttle!

Poster Thread
frankthedolphintrainer
Posted: 2008/5/18 5:19  Updated: 2008/5/18 5:19
No life (a.k.a. DattoMaster)
Joined: 2006/6/8
From: Brisvegas, oz
Posts: 2173
 Re: Dual Downdraft Webers
wow thats pretty crazy, i like it

Poster Thread
rb20
Posted: 2008/5/18 6:26  Updated: 2008/5/18 6:26
No life (a.k.a. DattoMaster)
Joined: 2004/8/29
From: south australia
Posts: 1532
 Re: Dual Downdraft Webers
you can by this set up for the 240z L24 to l28 engine link

Poster Thread
datsa73
Posted: 2008/5/19 18:06  Updated: 2008/5/19 18:06
No life (a.k.a. DattoMaster)
Joined: 2000/1/10
From: Snohomish, WA USA
Posts: 1276
 Re: Dual Downdraft Webers
Thanks for the photos.
35HP Shot of Nitrous gives it an extra boost!

I run a 1987 Mustang with a 347 Stroker and a Paxton Supercharger at the track as well but the 1200 is funner to drive and the crowd loves it! I've left the mustang at home the last two races and most likely will run the Datsun all summer.

Poster Thread
revhead001
Posted: 2008/5/19 21:42  Updated: 2008/5/19 21:42
No life (a.k.a. DattoMaster)
Joined: 2008/3/15
From: Melbourne
Posts: 2742
 Re: Dual Downdraft Webers
Looks pretty smufrin sweet. I wonder how this carb set up would respond to turbo or supercharger?

Poster Thread
D
Posted: 2008/12/2 12:57  Updated: 2008/12/2 12:57
No life (a.k.a. DattoMaster)
Joined: 2002/10/28
From: under the Firmament LOL no twiglight effect BS
Posts: 10924
 Re: Dual Downdraft Webers
You would never turbo these unless you dont mind pulling them apart a million times as you jet them.

Poster Thread
steveo
Posted: 2008/12/2 13:09  Updated: 2008/12/2 13:09
No life (a.k.a. DattoMaster)
Joined: 2003/10/13
From: newcastle, NSW
Posts: 1691
 Re: Dual Downdraft Webers
he posted a pic the other day that shows the addition of a supercharger set up running with this carby set-up. I agree, it would be a pain in the ass to get running properly but once it was running it would be like driving a freaking hurricane!

Poster Thread
D
Posted: 2008/12/2 23:35  Updated: 2008/12/2 23:35
No life (a.k.a. DattoMaster)
Joined: 2002/10/28
From: under the Firmament LOL no twiglight effect BS
Posts: 10924
 Re: Dual Downdraft Webers
I think twin 32/36 are great for NA but with a supercharger a single 2 inch su would put out the same result.

I can only imagine 2 x twin 38mm on such a manifold.

Poster Thread
Fandatstick
Posted: 2008/5/17 11:36  Updated: 2008/5/17 11:36
Home away from home
Joined: 2003/10/23
From: NZ
Posts: 282
 Re: Dual Downdraft Webers
DD - how well does this go? What's the engine size?