LS3 Fuel Rails Vs. HP
#5
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Best bang for buck would probably be the Holley's. It's all about available volume in the rails, and almost all aftermarket fuel rails use the same size fittings.. Meaning, the internal volume capacity is similar.
#6
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St. Jude Donor '15
Go to Holley's if you're upgrading
I'm at at least mid 600's on E85 on stock rails, no problems. I don't think stock is the restriction people act like they are. I've seen shops cut the Schrader valve off and install a real AN fitting there and then use the stock rails at 1000rwhp no problem
I'm at at least mid 600's on E85 on stock rails, no problems. I don't think stock is the restriction people act like they are. I've seen shops cut the Schrader valve off and install a real AN fitting there and then use the stock rails at 1000rwhp no problem
Last edited by schpenxel; 06-30-2017 at 08:30 AM.
#7
I'm guessing I'm gonna need to replace or upgrade because I'm pretty sure this broke off or isn't suppose to be like this. I'm over 700hp so I thought if I would benefit from upgraded rails I would try to do it.
#8
Burning Brakes
The stock rails can easily handle 700hp on 93 but I'd go with Holley since you broke it.
Might want to look into upgrading the fuel system if that's still stock
Might want to look into upgrading the fuel system if that's still stock
#9
Planning on probably going with the ECS Stage1 dependjng on how it will do with meth. The whole reason it's broken is because I was trying to find out fuel pressure at the rails because I have been having a drop in fuel pressure. Seems like the stock pump and the boost a pump isnt enough with the A&A supercharger. I would like to try to stay steady at 60PSI but I have been dropping down to 50 according to my gauge but I was trying to of make sure my gauge was correct and broke that piece off
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DOUG @ ECS (06-30-2017)
#10
Burning Brakes
**** happens for sure....Lucky you broke it off totally and didn't just over stress it where it breaks while pressurized. I did the same thing when over tightening a connector on an AN hose end.
When did it drop to 50psi? During heavy pulls? And did it smoothly drop or bounced around when on the throttle?
EDIT: meth? in the fuel, or spray?
When did it drop to 50psi? During heavy pulls? And did it smoothly drop or bounced around when on the throttle?
EDIT: meth? in the fuel, or spray?
Last edited by NJ_phil; 06-30-2017 at 09:28 AM.
#11
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St. Jude Donor '15
Yeah might as well go with some Holley rails then since you have to buy something anyways...
#12
**** happens for sure....Lucky you broke it off totally and didn't just over stress it where it breaks while pressurized. I did the same thing when over tightening a connector on an AN hose end.
When did it drop to 50psi? During heavy pulls? And did it smoothly drop or bounced around when on the throttle?
EDIT: meth? in the fuel, or spray?
When did it drop to 50psi? During heavy pulls? And did it smoothly drop or bounced around when on the throttle?
EDIT: meth? in the fuel, or spray?
#13
Burning Brakes
The hobbs only controls a relay that switches on the BAP driver so it will always ready somewhere around battery voltage. I think the BAP has PWM output to the pump so not so easy to check with a DVM.
Sounds like the ECS stage 1 kit is what you need. I don't run it but a lot of others do and it looks like a killer setup for under 800hp. Fragola PTFE lines and their A1000 pump will handle E85 so it should handle meth at low dosages. Best to check with the guys there
Sounds like the ECS stage 1 kit is what you need. I don't run it but a lot of others do and it looks like a killer setup for under 800hp. Fragola PTFE lines and their A1000 pump will handle E85 so it should handle meth at low dosages. Best to check with the guys there
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DOUG @ ECS (06-30-2017)
#14
Just got off the phone with summit racing and Holly does not make 1 to fit my car because I still have the stock manifold. Guess I'm going stock temporarily until I figure out something else
#15
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St. Jude Donor '15
I think they are mistaken. I've tuned cars with them installed on both LS2 and LS3 vehicles with stock intake
Do some searching before you take their word for it.
Do some searching before you take their word for it.
Last edited by schpenxel; 06-30-2017 at 10:21 AM.
#16
Burning Brakes
https://www.holley.com/products/fuel.../parts/534-209
EDIT: Looks like it's setup for the standard shorty LS3 injectors and you'll need their 534-212 bracket kit for the ID1050s a lot taller.
Not sure if you run the stock plastic covers over the coils and if they will still fit
EDIT: Looks like it's setup for the standard shorty LS3 injectors and you'll need their 534-212 bracket kit for the ID1050s a lot taller.
Not sure if you run the stock plastic covers over the coils and if they will still fit
Last edited by NJ_phil; 06-30-2017 at 10:42 AM.
#17
Team Owner
Stock rails have made well over 1000rwhp time and time again. They are not a restriction until way up there. I don't know if anyone has found the limit.
#18
https://www.holley.com/products/fuel.../parts/534-209
EDIT: Looks like it's setup for the standard shorty LS3 injectors and you'll need their 534-212 bracket kit for the ID1050s a lot taller.
Not sure if you run the stock plastic covers over the coils and if they will still fit
EDIT: Looks like it's setup for the standard shorty LS3 injectors and you'll need their 534-212 bracket kit for the ID1050s a lot taller.
Not sure if you run the stock plastic covers over the coils and if they will still fit
Thanks for everybody's help !
#19
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St. Jude Donor '15
Good deal, figured they would work one way or another
#20
I have heard conflicting opinions about that. Some people say the stock rails are good up till 600 other people say they're good way past that. I'm right at about 700rwhp now So better to be on the safe side. Plus The Holly's look much cooler 😊