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Actual length of runners

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Old Dec 9, 2006 | 08:31 PM
  #1  
rosco88ta's Avatar
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From: Estes Park, Co.
Car: 88 Trans Am
Engine: 355 c.i.
Transmission: 5 spd.
Axle/Gears: 3:42s
Actual length of runners

Does anyone have any idea how long the total lenght of the runners are for a stock manifold, slp runners and stock plenum???
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Old Dec 10, 2006 | 06:03 AM
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Damon's Avatar
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From: Philly, PA
When I shoved a tape measure down a stock runner, minus the plenum, many years back it was over 24 inches before it bumped into something (vavle stem, far side of the valve, who knows).
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Old Dec 10, 2006 | 10:35 AM
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From: Dayton, Ohio
Car: 1988 Trans Am
Engine: L98 355
Transmission: 700R4
Axle/Gears: 3.70
I think I read somewhere that the calculated length is something like 17 inches.
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Old Dec 10, 2006 | 11:59 AM
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For some reason I recall the number being 19", by memory can be a dangerous reference book.
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Old Dec 10, 2006 | 01:52 PM
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From: Schererville , IN
Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
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Old Dec 10, 2006 | 02:09 PM
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rosco88ta's Avatar
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From: Estes Park, Co.
Car: 88 Trans Am
Engine: 355 c.i.
Transmission: 5 spd.
Axle/Gears: 3:42s
Thanks Vader, I think you're right. After searching through alot of different sights that seems to be the figure I come up. I'm going to try and set my engine up with the Accel DFI setup. WHY? Because I kinda got with swap of parts so why not use it. It seems to be pretty complicated, but I've got all winter to figure it out.... Anway, Thanks again... Rosco
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