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Vortec TPI Build

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Old Oct 19, 2013 | 09:07 PM
  #1  
VincentZ28's Avatar
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Joined: Mar 2002
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From: San Antonio TX
Car: 1990 G92 IROC Z Miniram
Engine: 388cu 6.4 Liters
Transmission: G-Force T5
Axle/Gears: 3.73 Gears
Vortec TPI Build

I'm building a 355cu with a ported TPI Vortec Manifold, ZZ9 Cam, Edelbrock Runners fully siamesed with an inch of divider left, Vortec Heads with screw in studs and guide plates-2.02/1.60 valves fully ported, .028 head gasket, 2 valve pistions, 700r4/3.23 gears, Dyno Don Headers with dual cats and 3in Magnaflow Cat-back exhaust. What do y'all think the horsepower and quarter mile times will be? I do have all these parts. The car is a 1991 Z28
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Old Oct 20, 2013 | 08:23 AM
  #2  
Jim85IROC's Avatar
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Re: Vortec TPI Build

290 rwhp & 13.2 @ 105 mph.
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Old Oct 20, 2013 | 12:04 PM
  #3  
VincentZ28's Avatar
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Supreme Member
iTrader: (2)
 
Joined: Mar 2002
Posts: 2,516
Likes: 5
From: San Antonio TX
Car: 1990 G92 IROC Z Miniram
Engine: 388cu 6.4 Liters
Transmission: G-Force T5
Axle/Gears: 3.73 Gears
Re: Vortec TPI Build

Originally Posted by Jim85IROC
290 rwhp & 13.2 @ 105 mph.
That's it? Why so low?
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