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

Quater on the FPR

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Old Dec 24, 2006 | 10:06 PM
  #1  
Gallileo60's Avatar
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From: Texas City, Texas Area
Car: 89 RS, 92 Z28
Engine: 305 TBI, 350 TPI
Transmission: 700R4 Both Cars
Axle/Gears: 3.23 Posi.. 4 wheel disc both cars
Quater on the FPR

Will someone who has done the quater trick to raise fuel pressure please explain to me ghow it is done??? Does it really work??? Is it worth the trouble??? I am going to do the injector spacer, and the TBI spacer this month, so I figured if it is easy (It is free) I might do it at the same time..Thanks for any help on this issue, and MERRY CHRISTMAS to everyone...Tom
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Old Dec 26, 2006 | 01:35 PM
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
Just make it adjustable. You really won't actualy gain anything, unless your car actualy needs more fuel. You won't gain anything by just dumping fuel in. I would suggest you not bother with that, and instead start getting into computer work. If you plan to modify the car, working with the computer will be the best thing you can do.
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Old Dec 27, 2006 | 03:28 PM
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Gallileo60's Avatar
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From: Texas City, Texas Area
Car: 89 RS, 92 Z28
Engine: 305 TBI, 350 TPI
Transmission: 700R4 Both Cars
Axle/Gears: 3.23 Posi.. 4 wheel disc both cars
Dewey316,
Thanks for the advice...I am going to do some computer work ASAP, just not real sure how to procede...I am also looking to do any "Free" mods, as money is VERY tight right now...I have a used set of Edelbrock TES headers, and 3 inch y pipe I am putting on in a few days..Have done the AC delelte, and a good breathing ramair setup, those 2 items made quite a bit of difference as far as fun to drive....How would you suggest I procede with the computer work???? Thanks, Tom
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Old Dec 27, 2006 | 03:47 PM
  #4  
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From: Cleveland, Ohio
Car: 89' IROC-Z
Engine: LO3
Transmission: 700R4
Axle/Gears: 10-Bolt/2.73
All your computer learning needs.

https://www.thirdgen.org/forums/tbi/...free-tune.html
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Old Dec 27, 2006 | 03:59 PM
  #5  
Dewey316's Avatar
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
Thats exactly it. Read the matterial here. Save up the $100 or so dollars to get started, and then start there. I picked up almost a full second at the track, with just tuning on my stock motor. It is a good thing to do. Later on, without that computer work knowledge, I never could have gotten my motor to run well, with the cam/heads/intake.
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Old Dec 28, 2006 | 12:20 AM
  #6  
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From: Cleveland, Ohio
Car: 89' IROC-Z
Engine: LO3
Transmission: 700R4
Axle/Gears: 10-Bolt/2.73
Originally Posted by Dewey316
Thats exactly it. Read the matterial here. Save up the $100 or so dollars to get started, and then start there. I picked up almost a full second at the track, with just tuning on my stock motor. It is a good thing to do. Later on, without that computer work knowledge, I never could have gotten my motor to run well, with the cam/heads/intake.
You make me want to go get my equipment already.....even just half a second would be nice.....SWEET, tuning WILL be fun. Well that and burning the tires.
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Old Dec 28, 2006 | 07:26 AM
  #7  
Gallileo60's Avatar
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Joined: Dec 2005
Posts: 1,244
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From: Texas City, Texas Area
Car: 89 RS, 92 Z28
Engine: 305 TBI, 350 TPI
Transmission: 700R4 Both Cars
Axle/Gears: 3.23 Posi.. 4 wheel disc both cars
Man, that is amazing......I am going to do this as soon as I can.....1 second huh???? WOW.........I dont see how my motor could run ANY better than it does without really doing mechanical things to it, but I know alot of guys say the chip makes a difference...Well thanks again for all the replys...Tom
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