Re: How much horsepower will 1/4 I.D fuel lines support?
[Re: DRBNSB]
#1797061
04/06/15 12:35 AM
04/06/15 12:35 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Thank you! That's exactly what I needed to know. Thanks for your help
Your 1/4" ID line is really called 5/16"... we use
the OD when talking or buying line/tubing
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Re: How much horsepower will 1/4 I.D fuel lines support?
[Re: DRBNSB]
#1797063
04/06/15 12:56 AM
04/06/15 12:56 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I put calipers on it and it did measure .3125 5/16o.d. and .250 1/4 I.d. I wasn't sure what measurement was needed . Thanks
That was so you know what to ask for if you buy
tubing/line... its OD on that stuff(including exhaust
tubing)
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Re: How much horsepower will 1/4 I.D fuel lines support?
[Re: DRBNSB]
#1797065
04/06/15 01:12 AM
04/06/15 01:12 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
How much horsepower will 5/16 line support? Or is 3/8 the minimum? Thanks!
You would have to flow your line and find out... bends
in the tubing reduce flow... then once you find out
the flow you can figure .5PPH per HP.. that will give
you a decent idea
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Re: How much horsepower will 1/4 I.D fuel lines support?
[Re: DRBNSB]
#1797066
04/06/15 01:17 AM
04/06/15 01:17 AM
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Joined: Jan 2003
Posts: 4,448
Phoenix, AZ
MoparBilly
master
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master
Joined: Jan 2003
Posts: 4,448
Phoenix, AZ
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Chris,
I'm not telling anyone what to do, just relaying my personal experience. Last weekend my 3815lb 67 Belvedere went 119.5 Mph at Las Vegas. 440, 750 DP, and a 73 N20 jet in a big shot plate. I have stock 5/16 tank p/u, and stock 5/16 line. Carter mechanical pump and a T to carb, and solenoid.
I don't know why it clears the trap without nosing over, but it does. Somebody smarter than I can guess at the Horsepower.
"Livin' in a powder keg and givin' off sparks"
4 Street cars, 5 Race engines
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Re: How much horsepower will 1/4 I.D fuel lines support?
[Re: J_BODY]
#1797068
04/06/15 03:45 AM
04/06/15 03:45 AM
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Joined: Jan 2005
Posts: 1,260
Las Vegas NV
moparmanjames
pro stock
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pro stock
Joined: Jan 2005
Posts: 1,260
Las Vegas NV
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Quote:
he didn't mention the "hot" part and the DA was 5K or better for most of the weekend except for the early am runs. 2280 actual altitude.
Is that your red thing next to Billy's Belvedere? 
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Re: How much horsepower will 1/4 I.D fuel lines support?
[Re: moparmanjames]
#1797069
04/06/15 04:32 AM
04/06/15 04:32 AM
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Joined: Jan 2003
Posts: 4,448
Phoenix, AZ
MoparBilly
master
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master
Joined: Jan 2003
Posts: 4,448
Phoenix, AZ
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"The Red Thing" is my son's 76 Fury Sport, James! That's pretty much the response from everyone in Vegas, no one knew what is was! It was his first outing, and Thermo-quad woes held him to pedestrian speeds. I'm letting him learn on his own terms, and he's as hard headed as his old man...
"Livin' in a powder keg and givin' off sparks"
4 Street cars, 5 Race engines
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Re: How much horsepower will 1/4 I.D fuel lines support?
[Re: DRBNSB]
#1797070
04/06/15 05:31 AM
04/06/15 05:31 AM
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Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger
master
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master
Joined: Nov 2004
Posts: 2,825
Sk. Canada
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Quote:
How much horsepower will 5/16 line support? Or is 3/8 the minimum? Thanks!
fuel pump. I'Ve run into the 11's with 5/16 stuff. On a 125 shot. Old stock 440 deal.
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Re: How much horsepower will 1/4 I.D fuel lines support?
[Re: MoparBilly]
#1797071
04/06/15 12:15 PM
04/06/15 12:15 PM
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Joined: Jan 2005
Posts: 1,260
Las Vegas NV
moparmanjames
pro stock
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pro stock
Joined: Jan 2005
Posts: 1,260
Las Vegas NV
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Quote:
"The Red Thing" is my son's 76 Fury Sport, James! That's pretty much the response from everyone in Vegas, no one knew what is was! It was his first outing, and Thermo-quad woes held him to pedestrian speeds. I'm letting him learn on his own terms, and he's as hard headed as his old man...
Cool, no disrespect intended, I just saw that big car and thought it was a good opportunity to mess with Jay lol.
As for the topic, I've been mid 11's with 3/8" line to the mechanical pump and then the old 5/16" line up to the carb in a 3700# Roadrunner with 4.30 gears and a 29" tall tire.
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Re: How much horsepower will 1/4 I.D fuel lines support?
[Re: DRBNSB]
#1797073
04/06/15 12:42 PM
04/06/15 12:42 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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The reason I say flow your system is that I have seen some badly bent lines come out of the factory... bad enough that the production car wouldnt run at WOT.. being that I worked in the fuel&exhaust lab I was sent out to dealerships on many occasions to find problems... this one car had a bad line on it but it wasnt the only one I seen over the years... a minor kink will really decrease the flow... and being that the ID is already 1/4" it doesnt take much to reduce the area
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Re: How much horsepower will 1/4 I.D fuel lines support?
[Re: Lee446]
#1797074
04/06/15 12:47 PM
04/06/15 12:47 PM
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Joined: Jan 2003
Posts: 8,026
Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,026
Tulsa OK
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I still have a 5/16th pickup in the tank on my car. Its been 11.18@120.5 in good air which works out to about 500HP. Its always had rock solid fuel pressure in the traps. Thats with a holley blue pump mounted in front of the passenger side spring hanger, it goes to -6 line from the pump forward. It was meant to be temporary when I had nitrous on the car for a little while with a 360 even more clapped out than the one i have now. That was 14 years ago, the nitrous has been gone for 13 years lol.
68 Barracuda Formula S 340
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