TPI Intake Porting Questions
09-01-2016, 08:51 AM
#1
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Car: 1989 GTA, white, T-top, 5 speed car
Engine: 383, stuff
Transmission: T56
Axle/Gears: 3.42
TPI Intake Porting Questions
I have a 350 roller block with an LT4 Hot Cam, AFR 195 heads, headers and 1.6 roller rockers. Car is also getting a T56 and 3.42 rear.
I have a stock base, stock plenum and Accel runners.
What should I port/Siamese? I cannot weld aluminum. I was planning on siamesing the base and intake. Then siamesing a inch or two in both ends of the runners.
Is this a good idea?
What advice can you offer?
I have a stock base, stock plenum and Accel runners.
What should I port/Siamese? I cannot weld aluminum. I was planning on siamesing the base and intake. Then siamesing a inch or two in both ends of the runners.
Is this a good idea?
What advice can you offer?
09-01-2016, 09:48 AM
#2
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: TPI Intake Porting Questions
Just do the top side of the runners down as far as you can go. The stock base will need a LOT of port work.
Last edited by TTOP350; 09-01-2016 at 11:04 AM.
09-01-2016, 09:54 AM
#3
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Car: 1989 GTA, white, T-top, 5 speed car
Engine: 383, stuff
Transmission: T56
Axle/Gears: 3.42
Re: TPI Intake Porting Questions
Thanks for the help. Thanks for also not suggesting an alternative intake.
09-01-2016, 12:48 PM
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Car: 1989
Engine: 5.7
Transmission: auto
Axle/Gears: 2.77
Re: TPI Intake Porting Questions
While I am no expert I have been porting a stock base for awhile and have just started welding on it. I followed the walls and was amazed how much I got out of it. Top and bottom sides there is a lot there. Keep at it an take your time and I would be interested in your outcome. Dan
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