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Cobra Manifold - Gasket between Upper and Lower 

 

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 Post subject: Cobra Manifold - Gasket between Upper and Lower
Posted: Fri Feb 29, 2008 6:50 pm 
Tyre Shredder
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Hey. Do i need the gasket between upper and lower manifold or can i just use some RTV?
I went to a speedshop and then autobarn to buy one and both places said dont bother with it :S

Whats everyones opinion?
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Posted: Fri Feb 29, 2008 7:20 pm 
Getting Side Ways
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Get a phenolic spacer for it. Reduce intake temps.

http://www.norcom.net.au/~bpt/Phenolic%20Spacer.htm

Scroll down to see the spacer.

 

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Posted: Fri Feb 29, 2008 7:41 pm 
Smokin em up
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I got 1 from blueovalindustries in the states. It was for the Typhoon. Only took 5 days to get here and with the dollar being so high at the moment it is the perfect place to buy.

 

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Posted: Fri Feb 29, 2008 7:57 pm 
Tyre Shredder
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So because its a cobra manifold (same lower as explorer yeah?) , i would need the AU spacer (Falcon AU 5.0L 220kW 12mm Phenolic Spacer.) ? Is that right?

Being 12mm, whats the chance of it fowling on the bonnet? Or would i need something 1" before i started worrying about that.

Alright then, so this phenolic spacer would come with gaskets then? Or am i still in the same position of needing one? hehe
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Posted: Fri Feb 29, 2008 9:04 pm 
Getting Side Ways
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Yup the cobra is the same as the explorer with the port location.

Yes you would need a AU spacer.

I am running a 1/2" and have no probs with fowling in a EF.

With the spacer you wil need longer bolts for the manifold, gaskets as well.

 

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Now N/A (permanent Lag) - AFR 165's, Comp XE270 cam, 1.6 RR - 269 rwhp 14.1 @ 102mph.

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Posted: Sat Mar 01, 2008 9:53 am 
Getting Side Ways
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if you do buy a phelonic spacer make sure it comes with longer bolts as this will make life alot easier. try summit or even raceparts, prety sure they stock the spacer with longer bolts and gaskets.

 

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Posted: Sat Mar 01, 2008 8:03 pm 
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Use a gasket.
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Posted: Sat Mar 01, 2008 11:10 pm 
Parts Gopher
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I have used silastic on mine with no probs except for the clean-up if you pull it apart.

Let it dry for 24hrs after assembly though!
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