Building your own fuel rail

For discussing injector selection, manifold modifications, throttle bodies, fuel supply system design and construction, and FIdle valves and IACs.
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PSIG
Experienced Squirter
Posts: 201
Joined: Fri Jun 11, 2004 11:02 pm
Location: Poulsbo, WA

Post by PSIG »

I use a similar brazing rod from Lincoln you can get at Home Cheapot for about $4 plus some dip-flux. I prefer to add the dip-flux for better coverage. Mine are usually steel-steel. :D
turbo54
MegaSquirt Newbie
Posts: 5
Joined: Thu Nov 18, 2004 1:27 pm
Location: Alabama

Post by turbo54 »

Is there some advantage to brazing rather than welding? I've made many a fuel rail and I've always welded it.... had never even thought to braze.

Am I missing something or is brazing just a cheaper method (don't need a TIG machine)?
mitsuko
Helpful Squirter
Posts: 49
Joined: Tue Mar 30, 2004 10:49 pm
Location: Belgium

Post by mitsuko »

Brazing has the advantage that the solder or what's it called flows .
And it can be applied with little heat compared to welding , wich reduces
warpage . Also , it doesn't take to much skill to braze or solder .

Mag welding does takes some skill to get it all leak free .

An acetylene/oxygene welding torch offers the advantage
of the metal flowing continuusly , like a bazing process , but
introduces to much heat to the rail .

A tig is kinda best of both worlds . Nicely controlled melt , not to much heat , argon protection . Now that I own a tig , I wouldn't even consider brazing or acetylene welding anymore .

Pat
PSIG
Experienced Squirter
Posts: 201
Joined: Fri Jun 11, 2004 11:02 pm
Location: Poulsbo, WA

Post by PSIG »

A big plus for low-budget DIY MSers is that brazed factory-style rails can be made with just a $30 MAPP torch kit, rods and simple tools. A whole fuel rail could be made for under $50 including the equipment! Image

David
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