LB7: fuel rail fittings

[MAXPWR]

OK guys! Pulled the fuel rail fittings, I was told that they were different sizes. Mine are the same size (stock) 7/64 in size. Mod sizes I thought were 1/8-9/64(.125)driver and 1/16 (.060) pass. So what if anything do I do?? Drivers is close to the mod size and my pass is already larger!

 

[SDP]

Mine were the same, I think the LB7 rails are individually fed so they use the same size holes in the fittings. I ported mine out to 9/64 on both sides since I had them out, not sure if it made a difference though.

 

[2500HeavyDuty]

the stock vs ppe i could not tell a difference by looking at it, but when i tried shoving drill bits into it at the hardware store the ppe is bigger than stock.

i got one ppe one and a modded stock one thats been ported out to .125

 

[MAXPWR]

I think I'll just stick them back in. And plug the blow off,like 2500HD showed. So far my rail pressure hasn't dropped but I still haven't loaded up one of my bigger tune Thanks guys!

 

[paint94979]

the stock vs ppe i could not tell a difference by looking at it, but when i tried shoving drill bits into it at the hardware store the ppe is bigger than stock.

i got one ppe one and a modded stock one thats been ported out to .125

Thats interesting the PPE Fuel Fitting I got was substantially larger in diameter than my stock piece.

 

[Kat]

Thats interesting the PPE Fuel Fitting I got was substantially larger in diameter than my stock piece.

IIRC LLY and LB7's are different sizes. Someone correct me if I'm wrong.

 

[sweetdiesel]

IIRC LLY and LB7's are different sizes. Someone correct me if I'm wrong.

They are different BUT lb7 are 2 piece and still have a restriction.
LLY are 1 piece fittings basically both can be drilled out

 

[sweetdiesel]

I think I'll just stick them back in. And plug the blow off,like 2500HD showed. So far my rail pressure hasn't dropped but I still haven't loaded up one of my bigger tune Thanks guys!

is this for the lb7 or lly?

 

[sweetdiesel]

Mine were the same, I think the LB7 rails are individually fed so they use the same size holes in the fittings. I ported mine out to 9/64 on both sides since I had them out, not sure if it made a difference though.

Ya each rail is the same size and they Y off to each rail unlike a lly

 

[juddski88]

anyone have a pic of the LB7 ones?

 

[MAXPWR]

They are different BUT lb7 are 2 piece and still have a restriction.
LLY are 1 piece fittings basically both can be drilled out

Looked again and found what you where talking about the two pieces. So we drill the bullet looking piece out to 1/8 drive and the pass to a 1/16?? The driver one is smaller than 1/16 right now, that pretty big! I just want to make sure I have this right before I start drillling, I don't think these would be cheap or easy to get from the stealer if I mess one up! I asked Kat to post the pics for me and I will put them in my pics as well

 

[MMLMM]

LLY, LBZ, LMM drill driver side to .090 (actually a 2.3mm bit is perfect for this), and if you want to do the pass side, go .060


LB7 are both the same size in each rail and you really shouldn't bother porting them. I think they are pretty open as it is.

 

[sweetdiesel]

LLY, LBZ, LMM drill driver side to .090 (actually a 2.3mm bit is perfect for this), and if you want to do the pass side, go .060

Why not drill both Mike?

LB7 are both the same size in each rail and you really shouldn't bother porting them. I think they are pretty open as it is.

The rail fittings are a nice size ID , Its what is behind the fitting that is the restriction

Does any of it really make a difference I still drill em out

 

[MMLMM]

The rail fittings are a nice size ID , Its what is behind the fitting that is the restriction

Does any of it really make a difference I still drill em out

Because the Pass. is a PITA to get too

 

[Kat]

Here are Dave's pic's

 

[MAXPWR]

Thanks Kat!

 

[2500HeavyDuty]

Here are Dave's pic's

i knew about that little piece, i seen it removed in the ats dual cp3 pdf for early lb7's.

what i didnt know is how small that booger gets jeez

 

[MAXPWR]

OK! So do I port the bullet looking piece or do I leave that? It measures.024,both sides are the same.

 

[sweetdiesel]

OK! So do I port the bullet looking piece or do I leave that? It measures.024,both sides are the same.

drill em out

 

[MAXPWR]

drill em out

What size should I drill these to? I've seen .060-.125