TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Diff between TPI and MPFI

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Old Jul 13, 2001 | 11:59 PM
  #1  
MartyMcFly's Avatar
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From: Kalamazoo, MI
Car: Z28
Engine: Edelbrockified 305
Transmission: 700-R4
Diff between TPI and MPFI

Is there a difference between Tuned Port Injection and Multi-Port fuel Injection?

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Ludicrous Speed GO!!!
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Old Jul 14, 2001 | 12:15 AM
  #2  
breathment's Avatar
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From: Bedford, Tx
<font face="Verdana, Arial" size="2">Originally posted by MartyMcFly:
Is there a difference between Tuned Port Injection and Multi-Port fuel Injection?

</font>
don't think so. if its a 5.7L L98



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88' GTA 350 MODS---&gt; air foil, K&N, Shift Kit, 180* therm, TB bypass
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Old Jul 14, 2001 | 02:35 PM
  #3  
GMTech's Avatar
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From: Vereinigten Staaten
Car: Take
Engine: Your
Transmission: Pick
TPI is a multi-port fuel injection system.

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Old Jul 15, 2001 | 10:01 PM
  #4  
Jay's Avatar
Jay
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From: Newington, CT
Car: 88 IROC
Engine: 5.7 RamJet
Transmission: T56
Axle/Gears: Dana44 4.10
In terms of thirdgens.. TPI was on V8 cars
MPI was the term for V6 cars
same basic design
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