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Manifolds 

 

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Posted: Tue Sep 13, 2005 12:15 pm 
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Ride: EL Fairmont Ghia V8 Turbo

Power: 303 rwkw

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TerroristGHIA wrote:
In relation to Manifolds, i can not recommend the Edelbrock RPMII enough. This manifold was worth .5 sec and 3 mph on the 1/4 for my Car. The rear wheel KW was increased by 10-15rwkw across the rev range, and torque also increased dramatically
Brett


How much did that set you back? Any idea how much power these are good for?

 

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Posted: Tue Sep 13, 2005 1:05 pm 
Getting Side Ways
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http://www.edelbrock.com/automotive/man_ford_5l.html
Is the info on the manifold and.....
http://www.vpw.com.au/productgroup.asp? ... GrpID=1514
is the pricing from VPW.

 

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Posted: Tue Sep 13, 2005 1:08 pm 
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offyaguts wrote:
With what? Head gaskets? If that's what your talking about then no!!


Yeah I was referring to the headgaskets. How come the 6s have problems with alloy heads and the 8s dont? Isnt it to do with different metal expansion rates and cooling/shrinking?
Is it to do with the fact that the 8s heads are smaller than a 6s?

Cheers

 

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Posted: Tue Sep 13, 2005 9:18 pm 
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What's the diff in compression?
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Posted: Tue Sep 13, 2005 11:43 pm 
Getting Side Ways
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My manifold cost me 1000 landed but was a very long wait and i got it trade. The power figure was 10-12rwkw with this manifold on N/A. But was good for an extra 25rwkw on NOS. The torque didnt appear to suffer with the change to the RPMII 5.0efi manifold either. This has all been achieved on stock heads and cam for a 170kw factory motor
Brett

 

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Posted: Wed Sep 14, 2005 3:20 am 
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Crap site but these will have Ford heads...
http://www.racepartsaustralia.com.au/index.htm
Imo I'd use either TFS trick flows or AFR if you want to spend another $1k for cnc machining..From www.highperformanceworld.com.au Edelbocks are o/k along with Holley or www.protopline.com ...

 

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Posted: Thu Sep 15, 2005 3:42 am 
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EDXR8 wrote:
Original GT40 flow 192/128cfm, GT40P's 196/139cfm, GT40Y's 213/134cfm, GT40X's 226/161 and the Ford Motorsport Z's (Not actually called GT40Z's because they are a totally new design) flow 277/218cfm.

Also worth noting that the stock heads only flow 156/116cfm while the stock HO intake flows 144cfm and the Explorer intake flows 188cfm.


These are individual runner CFM's I assume? There is a way to up your CFM of the HO manifold which Im doing for s**t and giggles, and cause Ive got a spare one.
http://www.diyporting.com/
Check this out its fairly detailed

 

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Posted: Thu Sep 15, 2005 5:48 pm 
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TerroristGHIA wrote:
My manifold cost me 1000 landed but was a very long wait and i got it trade. The power figure was 10-12rwkw with this manifold on N/A. But was good for an extra 25rwkw on NOS. The torque didnt appear to suffer with the change to the RPMII 5.0efi manifold either. This has all been achieved on stock heads and cam for a 170kw factory motor
Brett


that intake manifold sits higher then normal and you have problems sitting it under the bonnet don't you?
anyone know if it'll sit under a EB bonnet without problems, even tho i have a GT bonnet think it still could be hard, thats why im thinking about going explorer plus i want it to look stockish

 

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