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Holden 6 tunnelram
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boom Offline
#1 Posted : Monday, 3 December 2007 12:21:18 AM(UTC)
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hey guys.
Just wondering, is it possible, and is there any benefit to running a side draft weber on a VK injection manifold in place of the throttlebody?
just thinking, it would have much the same effect as a tunnelram.

awaiting your thoughts,
cheers alex


If it doesn’t burn fossil fuels, it’s not a sport.
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HK1837 Offline
#2 Posted : Monday, 3 December 2007 4:39:03 AM(UTC)
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It would most likely run like Sh1t.

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boom Offline
#3 Posted : Monday, 3 December 2007 5:06:16 AM(UTC)
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oh. ok thanks. tell me, is it the 186 heads that had adjustable rocker gear? because i have one sitting here, and in order to run a proper carb on my black motor, (e.g triples or quaddie) i'm thinking of taking your advice and putting the red head on and
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boom Offline
#4 Posted : Monday, 3 December 2007 5:06:16 AM(UTC)
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oh. ok thanks. tell me, is it the 186 heads that had adjustable rocker gear? because i have one sitting here, and in order to run a proper carb on my black motor, (e.g triples or quaddie) im thinking of taking your advice and putting the red head on and d
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peter_flane Offline
#5 Posted : Monday, 3 December 2007 9:57:34 AM(UTC)
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You can buy manifolds for triple SUs, triple Webers, two, four barrel etc to suit 12 port head.

http://www.redlineauto.c...S_TO_SUIT_6_CYL_ENGINES

Yella terra sell new 12 port heads that already flow
If it is old or rare - Cut it! http://www.ehlimo.com.au/
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peter_flane Offline
#6 Posted : Monday, 3 December 2007 9:57:34 AM(UTC)
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You can buy manifolds for triple SU's, triple Webers, two, four barrel etc to suit 12 port head.

http://www.redlineauto.c...S_TO_SUIT_6_CYL_ENGINES

Yella terra sell new 12 port heads that already flow
If it is old or rare - Cut it! http://www.ehlimo.com.au/
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HK1837 Offline
#7 Posted : Monday, 3 December 2007 4:08:05 PM(UTC)
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I reckon that the text on that website is a mistake. I can't see how (without porting and/or welding) a manifold can suit red, black and blue. Particularly since they list 2 x different triple Weber manifolds.

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HK1837 Offline
#8 Posted : Monday, 3 December 2007 4:08:05 PM(UTC)
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I reckon that the text on that website is a mistake. I cant see how (without porting and/or welding) a manifold can suit red, black and blue. Particularly since they list 2 x different triple Weber manifolds.

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peter_flane Offline
#9 Posted : Monday, 3 December 2007 8:28:19 PM(UTC)
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My manifold when new was able to be setup for 9 or 12 port. The pads were left wide and no stud holes were drilled. The match porting to the inlet ports was not a real complicated procedure. The old manifold gasket port matching job. As far as I could tel
If it is old or rare - Cut it! http://www.ehlimo.com.au/
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boom Offline
#10 Posted : Monday, 3 December 2007 9:02:24 PM(UTC)
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186 adjustable rockers?


If it doesn’t burn fossil fuels, it’s not a sport.
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HK1837 Offline
#11 Posted : Monday, 3 December 2007 9:56:21 PM(UTC)
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149, 161, 179, 186 and 202 XU-1 had adjustable rockers. 130, 138, 173 and 202 were fixed bridge type (There might be some minor overlap somewhere).

Boom, Peter has your answer. You can run the blue/black head if necessary and buy the 4BBL Redline manif
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boom Offline
#12 Posted : Monday, 3 December 2007 10:13:14 PM(UTC)
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thats what im worried about. i probably will end up running with the red head i have here. everythings cheaper.


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boom Offline
#13 Posted : Monday, 3 December 2007 10:13:14 PM(UTC)
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that's what im worried about. i probably will end up running with the red head i have here. everything's cheaper.


If it doesn’t burn fossil fuels, it’s not a sport.
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peter_flane Offline
#14 Posted : Tuesday, 4 December 2007 2:16:12 AM(UTC)
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Although port dividers were specifically installed into Yella Terra "Bathurst 12000" heads to create a 12 port style head. They were used with triple webers. So it may be an assumption on my behalf, and maybe incorrect that triple webers with a 12 port he
If it is old or rare - Cut it! http://www.ehlimo.com.au/
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HK1837 Offline
#15 Posted : Tuesday, 4 December 2007 4:21:01 AM(UTC)
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To take advantage of triple Webers or Dellortos you need a 12-port head. What I was getting at was if you use a 9-port style manifold (eg single Holley) with only 3 x runners, on a 12-port head, the port dividers are flat and about 6-10mm wide. So you end
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boom Offline
#16 Posted : Tuesday, 4 December 2007 4:36:49 AM(UTC)
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how much meat is there in a ports on the red head, as i want a much straighter shot at the valve, and i don't know where the metal will break through to water


If it doesn’t burn fossil fuels, it’s not a sport.
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boom Offline
#17 Posted : Tuesday, 4 December 2007 4:36:49 AM(UTC)
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how much meat is there in a ports on the red head, as i want a much straighter shot at the valve, and i dont know where the metal will break through to water


If it doesn’t burn fossil fuels, it’s not a sport.
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vintageholden Offline
#18 Posted : Tuesday, 4 December 2007 7:17:03 AM(UTC)
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get an old one and pratice on it
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boom Offline
#19 Posted : Tuesday, 4 December 2007 7:37:24 AM(UTC)
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cheers


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