V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

Displacement up

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Old Dec 6, 2007 | 06:47 AM
  #1  
oxrabidus's Avatar
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From: Orlando, FL
Car: 1989 Camaro RS
Engine: 2.8l v6
Transmission: 5 Speed Manual
Axle/Gears: Probably the stock 3.42
Displacement up

In a 1986 Camaro with a 2.8...if I was to change the block and put in a 3.8L v6 block would that work? Would the compression be too high? I am thinking about changing nothing but the block and porting the heads, getting short headers and a performance chip? Would I bed able to use all my original sensors and ecu and stuff?
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Old Dec 6, 2007 | 07:09 AM
  #2  
2.8RS's Avatar
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From: Tallahassee, FL
Car: 89 V6 Camaro
Engine: 2.8
Transmission: 700R4
Axle/Gears: 3.42 open diff
Re: Displacement up

The 3.8 is a completely different motor. The largest motor that you can put in without having to change anything is the 3.4.
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Old Dec 6, 2007 | 11:18 AM
  #3  
oxrabidus's Avatar
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From: Orlando, FL
Car: 1989 Camaro RS
Engine: 2.8l v6
Transmission: 5 Speed Manual
Axle/Gears: Probably the stock 3.42
Re: Displacement up

Thanks for the info... any idea how much power that will make? I want to get a good solid 210-230 hp... Port the heads, polish intake ports, hedman hedders, edelbrock camshaft(idle-5500), and get the bigger displacement, a a jet stage 2 perormance chip... Think its possible?
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Old Dec 6, 2007 | 11:41 AM
  #4  
Dale's Avatar
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From: AR
Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
Re: Displacement up

1 person tryed putting a 3.8 in there car. Easier n faster to install a v8.

Considering a 3.8 comes factory with 200hp. 210-235 would not be hard.
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Old Dec 6, 2007 | 12:19 PM
  #5  
bl85c's Avatar
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From: right behind you
Car: '85 maro
Engine: In the works...
Transmission: TH700 R4
Axle/Gears: 3.73 posi
Re: Displacement up

We get questions like this regularly. Someone should make a stickey so newbies don't get confused.

Attention: 90 degree v6's (3.8, 4.3 ect) aren't compatible with 60 degrees (2.8, 3.1, 3.4, ect).
----------
By the way Dale, you wouldn't happen to have a copy of the $3A def. with the maf scalars would you?

Last edited by bl85c; Dec 6, 2007 at 12:22 PM. Reason: Automerged Doublepost
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Old Dec 6, 2007 | 07:09 PM
  #6  
Dale's Avatar
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From: AR
Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
Re: Displacement up

Originally Posted by bl85c
By the way Dale, you wouldn't happen to have a copy of the $3A def. with the maf scalars would you?

Try craig

http://www.moates.net/info_pages.php?pages_id=14 (should take you to his dl page)
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Old Dec 6, 2007 | 07:27 PM
  #7  
bl85c's Avatar
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From: right behind you
Car: '85 maro
Engine: In the works...
Transmission: TH700 R4
Axle/Gears: 3.73 posi
Re: Displacement up

Tried it. His doesn't have the scalars. All I need are the stock values, then the '870/'302 to '165 is possible for everyone. I've tried to find the right values via datalogging, but with a nbO2 it's like throwing darts at a pea. I guess I'll have to bite the bullet and get a copy from tunercat.

P.S. Sorry for hijacking the thread.

Last edited by bl85c; Dec 6, 2007 at 11:26 PM.
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Old Dec 6, 2007 | 09:29 PM
  #8  
2_point8_boy's Avatar
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Joined: Nov 2002
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From: Castaic, CA
Car: 1988 Camaro RS
Engine: 2.8L of Raw POWER!!!
Transmission: Stick Shift
Axle/Gears: 3.42's
Re: Displacement up

Originally Posted by bl85c
We get questions like this regularly. Someone should make a stickey so newbies don't get confused.

Attention: 90 degree v6's (3.8, 4.3 ect) aren't compatible with 60 degrees (2.8, 3.1, 3.4, ect).
DONE!
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