TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Old Feb 11, 2012 | 11:12 PM
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stephennmm's Avatar
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From: lakeland florida
Car: 85 firebird
Engine: 4.8 lsx
Transmission: th400
Axle/Gears: 8.8 ford 3.08
87 gta

Hey guys im new to the TPI. I have had 3 birds in my time all third gens and still have my first one. I will post pics of the build eventually. But what im trying to find out is a few things. Im wanting to see what would have to be done to change from maf to a map sensor with a stock computer. If thats not possible how well running the maf befor a turbo works for on these cars. And if there are anyproblems when switching from an auto to a T56??? The car is all stock 350tpi for the moment. This week for now it will be getting some long tube headers and a aeromotive stealth pump. Two weeks will be getting the t56 swapped in. Thanks Stephen
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Old Feb 18, 2012 | 07:22 PM
  #2  
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From: P.A.
Car: 1990 T/A w/WS6
Engine: 5.7L V8 TPI
Transmission: 700r4
Axle/Gears: 3.23 w/ posi
Re: 87 gta

Originally Posted by stephennmm
Hey guys im new to the TPI. I have had 3 birds in my time all third gens and still have my first one. I will post pics of the build eventually. But what im trying to find out is a few things. Im wanting to see what would have to be done to change from maf to a map sensor with a stock computer. If thats not possible how well running the maf befor a turbo works for on these cars. And if there are anyproblems when switching from an auto to a T56??? The car is all stock 350tpi for the moment. This week for now it will be getting some long tube headers and a aeromotive stealth pump. Two weeks will be getting the t56 swapped in. Thanks Stephen
Are you sure the T-56 can handle the TPI's torque? I'm not sure about the MAF sensor though. And for a turbo, I'd also ask on the Power Adder boards, but according to my father, the L-98s block might not be able to handle a high pressure turbo.
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