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JonnyAngle fuel rail connections
Senior Guru
Minneapolis, MN
151 Posts
Member since:
2008/2/18 0:00



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I'm double checking with the geniuses before I order the adapters for my fuel lines...


I have an early 86 and am converting to an lt1 intake. The fuel line connections are 3/8" and 5/16" on the stock hard lines, correct? I looked in the FSM and Haynes but they weren't very specific.


Thanks in advance!
Posted on: 2009/9/21 18:18
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vetteoz Re: fuel rail connections
Senior Guru
453 Posts
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How are you doing lines? New braided line all the way down to the filter / return line coupling?
If so you need Metric O ring to AN adapters to mate to the stock fittings
Posted on: 2009/9/21 23:42
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JonnyAngle Re: fuel rail connections
Senior Guru
Minneapolis, MN
151 Posts
Member since:
2008/2/18 0:00



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Quote:

vetteoz wrote:
How are you doing lines? New braided line all the way down to the filter / return line coupling?
If so you need Metric O ring to AN adapters to mate to the stock fittings


I am making lines that connect the fuel rail to the steel lines in between the throttle body and ac. I have 6AN connections, but don't know what size adapter will screw into the stock lines.
Posted on: 2009/9/21 23:56
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When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.

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vetteoz Re: fuel rail connections
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453 Posts
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Quote:

JonnyAngle wrote:I am making lines that connect the fuel rail to the steel lines in between the throttle body and ac. I have 6AN connections, but don't know what size adapter will screw into the stock lines.


So you have the connectors to plug into the stock LT1 rail fittings or you have welded -6AN fittings to the rails as many have done?

You need these to adapt the metric O ring fittings on the original TPI lines to -6AN .
http://www.summitracing.com/parts/EAR-9894DBHERL/
http://www.summitracing.com/parts/EAR-9894DBJERL/

Early TPI cars have 16mm on supply line and 14mm on return.Confirm you have to different sizes before buying; someone could have fitted a later rail that has 16mm on both.
Posted on: 2009/9/22 4:45
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Midnight85 Re: fuel rail connections
Guru
Streator, IL.
264 Posts
Member since:
2007/12/28 0:00



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Quote:

vetteoz wrote:
Quote:

JonnyAngle wrote:I am making lines that connect the fuel rail to the steel lines in between the throttle body and ac. I have 6AN connections, but don't know what size adapter will screw into the stock lines.


So you have the connectors to plug into the stock LT1 rail fittings or you have welded -6AN fittings to the rails as many have done?

You need these to adapt the metric O ring fittings on the original TPI lines to -6AN .
http://www.summitracing.com/parts/EAR-9894DBHERL/
http://www.summitracing.com/parts/EAR-9894DBJERL/

Early TPI cars have 16mm on supply line and 14mm on return.Confirm you have to different sizes before buying; someone could have fitted a later rail that has 16mm on both.


That is correct, I have just bought mine to do away with the rubber factory hoses.
Posted on: 2009/9/22 12:34
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vetteoz Re: fuel rail connections
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Quote:

Midnight85 wrote:That is correct, I have just bought mine to do away with the rubber factory hoses.


But you made new lines back to the filter ; my personal preference because you can run them across the bellhousing away from heat .
He is extending the stock rubber lines that connect at the front of the TPI so he needs the female metric fittings instead of the male ones you used.
Posted on: 2009/9/22 14:04
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JonnyAngle Re: fuel rail connections
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Minneapolis, MN
151 Posts
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Thanks dudes!
Posted on: 2009/9/22 16:30
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When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.

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