TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Old Feb 12, 2004 | 08:29 AM
  #1  
Faceman's Avatar
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Joined: Jul 2002
Posts: 122
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From: Poland (Europe)
Car: `89 Firebird Formula LS1
Engine: LS1 HA HA HA
Transmission: 4L60
Afpr

Hello

I have a question concering AFPR`s . Which one is the best, or maybe which one do you recomend. Also I would like to know what is a stock TPI fuel pressure rate and how much hp will I gain by installing the AFPR.

Sorry for asking (maybe?) dumb questions, but I`m nearing a TPI swap with my L03 motor.

Best regards
Marcin
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Old Feb 12, 2004 | 08:45 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
Czesc Marcin.


The one that i have is a homemade one. If you have a stock one it is very easy to convert it into an adjustable. If you don't have a stock one just buy one from Ebay for next to nothing.

As far as aftermarket check out this link

https://www.thirdgen.org/techbb2/sho...ight=best+AFPR
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