C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Jun 26, 2003 | 09:40 AM
  #1  
77CRUZN's Avatar
77CRUZN
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From: washington twp mi
Default Performer Series

Hi,

I'm new to this forum so i'm sorry if this topic has already been brought up

I'm driving a 77 with the Performer RPM series
Intake
Heads
Carb
Cam
air cond has been removed
True duel only 1 1/2" stainless the exhaust was put on before the mods
Dynomax mufflers
Headman Headers (which in my opinion are junk) the jetcoating fell off within a month and the bolt clearance wont even let you put a lock washer on half of them.
(sorry small rant just ot done replacing another gasket)

What i'm wondering is if anyone has put this package up on a dyno, The advertisments had promised 425hp but I've been aprehensive to claim that without proof. After I put the mods in she still didn't perform all that well due to a horrible gear (3:08). That problem will be fixed today 3:70 :reddevil

Thanks for any help on this,

Mike
77CRUZN
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Old Jun 26, 2003 | 11:44 AM
  #2  
GR8T WYT's Avatar
GR8T WYT
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Joined: Jul 2002
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From: Virginia Beach Va.
Default Re: Performer Series (77CRUZN)

It will probably put out close to that at 6000 RPM. Horsepower output is a graduated thing. Low end torque is where it's at. :D
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Old Jun 26, 2003 | 08:22 PM
  #3  
The Money Pit's Avatar
The Money Pit
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From: Orrtanna Pa.
Default Re: Performer Series (GR8T WYT)

I hope you meant 2 1/2 " duals,and you will most likely need a 2500-3000 rpm converter for any kind of sizzle off the line. Torue is what you need for the street,and to be honest,the RPM package doesn't have much of that.
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Old Jun 27, 2003 | 08:02 AM
  #4  
77CRUZN's Avatar
77CRUZN
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Cruising
 
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From: washington twp mi
Default Re: Performer Series (The Money Pit)

nope only 1 1/2" =( the system was put in before any mods
the shop convinced me that 2 1/2" would be too much for the 160-175hp stock motor.

so now i'm stuck with a 3 season old stainless system that still looks perfect, but is pretty much useless to me, and the dynomax mufflers just don't have the sound i'm looking for. ...have I mentioned I hate the headers too sigh

My plan is to put sidepipes on her soon =)

Mike
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Old Jun 27, 2003 | 12:35 PM
  #5  
79Corvette02's Avatar
79Corvette02
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From: Paradise City
Default Re: Performer Series (77CRUZN)

1 1/2" exhaust for a 350 :crazy: I think that'd be fine on some smog dinosaur that would make 150 hp...but for 400 plus, that's going to be a wicked bottleneck. I'd get your sidepipes :p:
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