TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Old Mar 6, 2002 | 11:08 PM
  #1  
92TPIZ28's Avatar
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Joined: Feb 2002
Posts: 142
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From: Chicago
Car: 1992 Camaro Z28
Engine: 355
Transmission: T-5 w/centerforce dual friction plate clutch
Throttle body

I have a 92 305 z28, with over 300 hp and a free flowing exhuast. would it be worth my money to buy a 52mm throttle body? would i even feel a difference? any suggestions on any other modifications i can do? what about new tpi intake runners, would i notice an increase in hp? your suggestions would be greatly appreciated.
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Old Mar 7, 2002 | 12:35 AM
  #2  
DANIELEK's Avatar
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Joined: Dec 2000
Posts: 550
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From: Alberta
Car: Red Rooster
Engine: 305 TPI
Transmission: M5
IMO i would go with the high flow runners and port much the base. You should defenialtely feel the difference.

As for the 52mm TB i would not waste my money, unless you have like 400 HP.

What mods do you have right now?
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