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ported pacemakers ? 

 

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 Post subject: ported pacemakers ?
Posted: Thu Jun 15, 2006 10:27 pm 
Parts Gopher
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Hi all,

Looking at some pacemakers for the EB that have been ported (not sure on porting size).

Do you guys think that the porting would cause a problem in power or torque loss? apparently they are ported for el heads which I thought were the same as eb heads.

Any feed back appreciated :)
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Posted: Thu Jun 15, 2006 10:33 pm 
Stock as a Rock
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Match porting can sometime allow reverberation back into the port which means less power. Depends on the combo. The next combo could make extra power with the port matching.

 

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Posted: Thu Jun 15, 2006 10:33 pm 
Stock as a Rock
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Same heads, yes... how/why would you bother porting headers? Paceys would be much bigger than the exhaust ports anyway.
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Posted: Thu Jun 15, 2006 10:41 pm 
Parts Gopher
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Ya reckon any loss in power or torque would be a lot? campared to stock?
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Posted: Fri Jun 16, 2006 2:05 pm 
Getting Side Ways
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I've seen the ad for the headers your talking about, they are Pacemaker PH4000 headers.

As far as "porting", I would assume they mean they have cleaned up the welding that interferes where the flange and the pipes are welded together.

I was checking this out when I pulled the Pacey 4-1's off my ute last week. I was suprised just how much the entry to some of the pipes is narrowed by poor welding...
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Posted: Fri Jun 16, 2006 6:26 pm 
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Cheers mate, That would make more sense :)
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Posted: Sat Jun 17, 2006 8:24 am 
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Wouldn't grinding welds make the extractors more prone to cracking/leaking?

If you have standard heads the Pacemaker primaries are much bigger than the E7 exhaust ports anyway. I'll take a pic later on today to show the difference and post it on here.
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