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Tapping into the TPI fuel rail???

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Old Apr 2, 2003 | 08:11 PM
  #1  
Willie's Avatar
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From: Tucson, Arizona USA
Car: 1987 Z28 Convertible
Engine: 305 TPI
Transmission: 5-speed
Tapping into the TPI fuel rail???

Has anyone successfully done this? I need to tap in a 3/8" line either directly into the fuel rail somewhere or in the 3/8" line leading to it in the engine compartment. Where would be the optimal location? Should the tee be on the hard line or rubber? I cannot use the test port as there exists a restriction just below the Schrader valve. This additional line will be used to fuel three 72# injectors on my Superfueler and the test port will not flow sufficient fuel.
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Old Apr 2, 2003 | 09:10 PM
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From: chi-town
A good place to drill and tap is the driver side fuel rail, in the front. It's a good spot. I have the correct drill bit at home to if you need the right size.

This is also the same spot that ASSC used for YEARS and i think sometimes still currently do when they used their double pumpt system.

They'd use a bosch pump in the tank running through the stock system and lines and then use a bulkhead and run an extra line out of the tank to another bosch pump (in-line) with pre and post filters and ran that feed line up to the spot i just said. Worked in tons and tons of street mustang/camaros going 10s or better. In one case even it supported enough fuel to go mid 9s (9.60s) with a 383, TPI intake, stock runners, ported base, SLP headers, i *think* trickflow heads, s-trim pullied for 15psi and 2 stages of the juice. Never ran outta fuel
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Old Apr 3, 2003 | 10:37 AM
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Dan W's Avatar
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From: Brevard Florida
How about "T"ing into the rubber line before it gets to the fuel rail? All the fittings should be available to do it with AN fittings and braided line.
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Old Apr 3, 2003 | 12:51 PM
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From: Des Moines, Iowa
Car: 89 Formula
Engine: Nada - v4.0
Transmission: Nada - v3.0
Axle/Gears: Nada - v3.0
Originally posted by 89ProchargedROC
This is also the same spot that ASSC used for YEARS and i think sometimes still currently do when they used their double pumpt system.

They'd use a bosch pump in the tank running through the stock system and lines and then use a bulkhead and run an extra line out of the tank to another bosch pump (in-line) with pre and post filters and ran that feed line up to the spot i just said. Worked in tons and tons of street mustang/camaros going 10s or better. In one case even it supported enough fuel to go mid 9s (9.60s) with a 383, TPI intake, stock runners, ported base, SLP headers, i *think* trickflow heads, s-trim pullied for 15psi and 2 stages of the juice. Never ran outta fuel
ASSC? How do you get ahold of them?
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Old Apr 3, 2003 | 12:57 PM
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From: Des Moines, Iowa
Car: 89 Formula
Engine: Nada - v4.0
Transmission: Nada - v3.0
Axle/Gears: Nada - v3.0
Sorry, couldn't resist.
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Old Apr 4, 2003 | 12:48 AM
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89ProchargedROC's Avatar
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From: chi-town
lol, u are FUNNY!

so is your ride ever going to get done?
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Old Apr 4, 2003 | 06:20 AM
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88GTAinRI's Avatar
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From: Ocean State, lil Rhody, the biggest littlest state in the union, Rhode Island
Car: 1988 GTA Black/Gray
Engine: Blown 355
Transmission: 700R4
How about an early style fuel rail with the cold start injector. Remove the C/S injector and there is a big hole there. Not sure what the thread pitch is on the rail, but I am sure there is an adapter out there somewhere to make it work. I have one collecting dust if you need it.
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Old Apr 4, 2003 | 09:05 AM
  #8  
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From: Des Moines, Iowa
Car: 89 Formula
Engine: Nada - v4.0
Transmission: Nada - v3.0
Axle/Gears: Nada - v3.0
Originally posted by 89ProchargedROC
so is your ride ever going to get done?
Once you start modding a car is it ever done? Actually, it's been done and torn apart, changed and put back together twice, broke a ring and pinion, and grenaded a TH400(broke the friggin trans case). I just don't talk about it or post many, if any, pics. You shouldn't have to think to hard to figure out why Currently it's in the middle of it's annual winter changes I REALLY need to stop talking to Larry. LMAO

Willie, if you want to see a pic of the way ASSC does it let me know. I'll see if I can find one.

Chris
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Old Apr 4, 2003 | 09:41 AM
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From: Tucson, Arizona USA
Car: 1987 Z28 Convertible
Engine: 305 TPI
Transmission: 5-speed
Thanks Chris. I would like that. If you could post it here, that would be great.

Willie
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Old Apr 4, 2003 | 01:06 PM
  #10  
96BlownSSragtop's Avatar
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From: Des Moines, Iowa
Car: 89 Formula
Engine: Nada - v4.0
Transmission: Nada - v3.0
Axle/Gears: Nada - v3.0
I'm going out of town for the weekend; I'll see if I can put my hands on one before I leave. If not I'll do it Sunday night when I get back.
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Old Apr 5, 2003 | 05:36 PM
  #11  
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From: Ocean State, lil Rhody, the biggest littlest state in the union, Rhode Island
Car: 1988 GTA Black/Gray
Engine: Blown 355
Transmission: 700R4
Willie,

Pics I promised you. I couldn't attach them in PM and don't have anywhere to host them so I am putting them here.

1.
Attached Thumbnails Tapping into the TPI fuel rail???-l98-heads-023.jpg  
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Old Apr 5, 2003 | 05:37 PM
  #12  
88GTAinRI's Avatar
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From: Ocean State, lil Rhody, the biggest littlest state in the union, Rhode Island
Car: 1988 GTA Black/Gray
Engine: Blown 355
Transmission: 700R4
2.
Attached Thumbnails Tapping into the TPI fuel rail???-l98-heads-024.jpg  
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Old Apr 5, 2003 | 05:37 PM
  #13  
88GTAinRI's Avatar
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Joined: Jun 2002
Posts: 416
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From: Ocean State, lil Rhody, the biggest littlest state in the union, Rhode Island
Car: 1988 GTA Black/Gray
Engine: Blown 355
Transmission: 700R4
3.
Attached Thumbnails Tapping into the TPI fuel rail???-l98-heads-025.jpg  
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Old Apr 5, 2003 | 05:38 PM
  #14  
88GTAinRI's Avatar
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Joined: Jun 2002
Posts: 416
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From: Ocean State, lil Rhody, the biggest littlest state in the union, Rhode Island
Car: 1988 GTA Black/Gray
Engine: Blown 355
Transmission: 700R4
4.
Attached Thumbnails Tapping into the TPI fuel rail???-l98-heads-026.jpg  
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Old Apr 5, 2003 | 05:39 PM
  #15  
88GTAinRI's Avatar
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Joined: Jun 2002
Posts: 416
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From: Ocean State, lil Rhody, the biggest littlest state in the union, Rhode Island
Car: 1988 GTA Black/Gray
Engine: Blown 355
Transmission: 700R4
5.
Attached Thumbnails Tapping into the TPI fuel rail???-l98-heads-027.jpg  
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Old Apr 11, 2003 | 10:12 PM
  #16  
96BlownSSragtop's Avatar
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From: Des Moines, Iowa
Car: 89 Formula
Engine: Nada - v4.0
Transmission: Nada - v3.0
Axle/Gears: Nada - v3.0
Sorry Willie....

I've looked all over h3ll and back and can't find any close-up pics of my old setup. I'll keep looking since we still have boxes to unpack from our move last fall. If I find them, I'll let you know.

Chris
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