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Author
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Topic: ANYBODY USE'ES A PHENOLIC ON THERE COBRA INTAKE
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SHORTSHIFTER89
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Member # 7810
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posted
 
 
The advantage of running the phenolic spacer would be preventing the heat transfer from the lower half of the manifold getting to the top, this reduces the air intake charge temp therefore offering denser charge = more power.
The other advantage being that using the spacer also increase runner lenght which offers more torque.
Gains I have typically seen on 5.0L engines are around 8-10 hp.
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1989 Mustang 5.0 HCI NOW SUPERCHARGED
2013 Range Rover Sport
2011 Bmw 5501 twin turbo 530HP
1998 silverado c1500 cheyenne
Posts: 923 | From: 707 hillside | Registered: Jul 2007
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444_C.I.D.
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Member # 2956
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posted
Im running one on my 95... I also had to extend my egr tube.
Posts: 554 | From: Dyess AFB | Registered: Jun 2003
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SHORTSHIFTER89
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Member # 7810
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posted
did you have to buy an another gasket for the upper manifold. im going to put my cobra intake on this weekend. and i bought the gasket kit and arp bolts. but my buddy that also has one on his car said i need that gasket for the upper or i think go's with the 1" inch spacer not sure.
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1989 Mustang 5.0 HCI NOW SUPERCHARGED
2013 Range Rover Sport
2011 Bmw 5501 twin turbo 530HP
1998 silverado c1500 cheyenne
Posts: 923 | From: 707 hillside | Registered: Jul 2007
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444_C.I.D.
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Member # 2956
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posted
yes, a gasket goes on BOTH sides of the spacer.
[ May 08, 2008, 04:06 AM: Message edited by: 347_C.I.D. ]
Posts: 554 | From: Dyess AFB | Registered: Jun 2003
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SHORTSHIFTER89
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Member # 7810
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posted
okay cool thanks. 347 C.I.D.
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1989 Mustang 5.0 HCI NOW SUPERCHARGED
2013 Range Rover Sport
2011 Bmw 5501 twin turbo 530HP
1998 silverado c1500 cheyenne
Posts: 923 | From: 707 hillside | Registered: Jul 2007
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50DADDY
CAFords OG
Member # 3076
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posted
Ive seemed to lose top end power when running spacers on EFI 5 liters.When you think about it,it increases runner length which hurts top end HP but 'maybe' increases low end torque an insignifigant amount.Id prefer the top end horsepower,these small motors need it.Just my 2 cents.
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"Im not stupid,i just act that way so i dont make you dummies uncomfortable."
"Old age and treachery shall overcome youth and skill."
Posts: 4827 | From: Suckramento | Registered: Jul 2003
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SHORTSHIFTER89
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Member # 7810
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posted
yeah i heard about the top end but i guess it depends on what type of intake. the edlebrock and trick flow is a stronger intake and will perform better then my cobra as far as air but im going to do more research on what your talking about 50daddy. thanks
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1989 Mustang 5.0 HCI NOW SUPERCHARGED
2013 Range Rover Sport
2011 Bmw 5501 twin turbo 530HP
1998 silverado c1500 cheyenne
Posts: 923 | From: 707 hillside | Registered: Jul 2007
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