TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

how good is an 91 tpi?

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Old Nov 26, 2005 | 01:51 PM
  #1  
killer89ta's Avatar
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Joined: Apr 2005
Posts: 27
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From: el paso
Car: 89 trans am
Engine: lB9w/ tbi
Transmission: t-56
Axle/Gears: 3.73
tpi to tbi

i'm originally a tbi and i bought an 91 tpi 305engine. i'm putting on my tbi system cause i don't wanna mess with changing harness and stuff. will this work or not?am i going to see power loss or gain?

Last edited by killer89ta; Nov 26, 2005 at 03:16 PM.
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Old Nov 26, 2005 | 03:47 PM
  #2  
robertfrank's Avatar
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Joined: Apr 2004
Posts: 3,001
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From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
the best part about that engine is the heads. the 081's.get ready for alittle tuning to get it to run it's best.
<------------300 posts!!

**MOD EDIT** C'Mon now, this is a public forum, you should know better than that!

Last edited by 90RS305; Nov 27, 2005 at 07:33 AM.
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Old Nov 26, 2005 | 03:57 PM
  #3  
jimp2001's Avatar
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Joined: Feb 2004
Posts: 860
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From: Albany, NY Area
Car: Red on Red 89 RS
Engine: LO3 305 TBI
Transmission: TH-700R4
Axle/Gears: 10-bolt / 2.73


TPI heads are a nice upgrade from LO3 heads
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