Gday all. .just curious to thoughts on various manifolds available to suit triple webers to 9 port. Need to source new one for my 45s and been told cain manifolds are the best? ? GO...
triple weber manifold holden 202
Started by
_datpsi_
, Mar 10 2015 09:31 PM
11 replies to this topic
#2
jd lj
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Posted 11 March 2015 - 04:37 AM
People get pretty excited to see my Seton manifold, I'm using a 9 port head with a 12 port conversation. Apparently the warnerford manifolds are copied from the Seton ones and are well regarded also.
#3
greens nice
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Posted 11 March 2015 - 12:42 PM
On a 9 port, they are all pretty close on my flowbench.
Even the warneford manifolds with the kicked outside runners flow well after a few small tweaks.
The air is moving so slow through the two runners that the bends don't affect outright flow much.
My best weber manifold, a marshals intake with the divider kicked back an inch drops 3cfm on a 212cfm cylinder head.
Even the warneford manifolds with the kicked outside runners flow well after a few small tweaks.
The air is moving so slow through the two runners that the bends don't affect outright flow much.
My best weber manifold, a marshals intake with the divider kicked back an inch drops 3cfm on a 212cfm cylinder head.
#4
biga064
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Posted 12 March 2015 - 05:13 PM
Hi Kevin what do you mean by the divider kicked back an inch ???
#5
wot179
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Green Eggs and Spam
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Posted 12 March 2015 - 05:37 PM
I have a triple Weber manifold for sale if you are after one.
#6
greens nice
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Posted 12 March 2015 - 06:36 PM
Something like this
#7
biga064
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Posted 12 March 2015 - 06:40 PM
So cut back an inch at manifold to head face ! What does this do ? Does it improve things ? thanks
#8
greens nice
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Posted 12 March 2015 - 08:50 PM
Improves outright flow by 3cfm +/-, somewhat small but it's still a gain when your looking for that last bit.
Its allowing the air to straighten out from the runner on the other side of the port.
No back to back testing on an engine unfortunately
Its allowing the air to straighten out from the runner on the other side of the port.
No back to back testing on an engine unfortunately
Edited by greens nice, 12 March 2015 - 08:50 PM.
#9
_Bomber Watson_
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Posted 12 March 2015 - 09:15 PM
3cfm for half hours work is pretty huge really.....Particularly on a 212 cfm head....
#10
_Smarty_
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Posted 02 April 2015 - 08:36 PM
Hi Datpsi., when purchasing your manifold be careful to check the casting carefully as manifolds can vary in thickness and quality greatly. I bought one a while ago and after looking hard at it there was no meat in it to allow for porting and matching work. I returned it and explained why. Ended up with a redline one. nice thick casting around mount bolts/studs, nice wall thickness to allow for porting and clean up. Tip. mark out manifold to head and drill for 2 small roll pins on front and rear ports to enable perfect alignment every time it's fitted. get help if not confident with this. good luck.
#11
_datpsi_
_datpsi_
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Posted 03 April 2015 - 11:37 AM
Yeah cheers bud.. chatted Danny at weber performance during the week and himself and majority nc guys over east run the redline manifold for that reason. Will be grabbing one but will possibly try play with other options next year.
#12
_datpsi_
_datpsi_
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Posted 10 July 2015 - 11:22 PM
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Edited by datpsi, 10 July 2015 - 11:34 PM.
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