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07-29-2009, 11:50:07 PM
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#1
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Veteran Member
Join Date: Nov 2005
Location: midwest
Posts: 2,562
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fuel line length
what is approx length needed to run from mechanical pump to the carb?
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Blue 1981 z28 4 speed with SBC 355 and 4.11 rear end. 12.43 at 121.72mph, but best ET at 12.23 at 113.4.
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07-29-2009, 11:57:31 PM
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#2
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Veteran Member
Join Date: Jul 2009
Location: San Antonio, TX
Posts: 125
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Are you asking about the rubber hose or the metal tube that runs ontop of your intake?
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07-30-2009, 12:55:15 AM
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#3
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Veteran Member
Join Date: Nov 2005
Location: midwest
Posts: 2,562
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it be usign a braided line to run directly from carb to the pump
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Blue 1981 z28 4 speed with SBC 355 and 4.11 rear end. 12.43 at 121.72mph, but best ET at 12.23 at 113.4.
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07-30-2009, 02:06:43 AM
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#4
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Veteran Member
Join Date: Feb 2004
Location: Saskatoon, SK, Canada
Posts: 2,787
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2.5-3.0 feet is probably a safe bet.
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Spandex is a privelige, not a right!
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07-30-2009, 03:18:41 AM
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#5
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Veteran Member
Join Date: Jul 2007
Location: Roch., NY
Posts: 1,188
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...Make sure you don't use more than 1 foot of rubber hose , racetracks don't like that ,if having fun at the track, just my .02, DC  |
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07-30-2009, 04:17:14 AM
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#6
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Veteran Member
Join Date: Sep 2008
Location: Shelbyville, Ky
Posts: 364
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Quote:
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Originally Posted by my24ktrat
...Make sure you don't use more than 1 foot of rubber hose , racetracks don't like that ,if having fun at the track, just my .02, DC |
sorry to threadjack but you musta been reading my mind, i was about to start a thread regarding this. i went to the track about 2 weekends ago and ive got oem rubber line going from my mech pump to regulator, then regulator to carb. probably close to 3 ft in all and they didn't say anything during tech inspection. im thinkin about upgrading my regulator and was wondering if i need to use braided line. I've heard that your not suppose to have more than 1 ft of rubber line. i really can't stand to pay for all the stupid AN fittings and braided line to be "legal"
__________________
1980 Z28
355 sbc/9.72:1 CR/Edelbrock Performer 600cfm/Edlebrock Performer RPM intake/Procomp Aluminium heads 180cc/1 5/8" headers/Summit Racing Camshaft/SpeedPro flat top pistons/built TH350
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07-30-2009, 04:27:07 AM
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#7
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Lifetime Gold Member
Join Date: Jul 2001
Location: san bernardino calif
Posts: 16,440
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Quote:
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Originally Posted by loudvolvo
sorry to threadjack but you musta been reading my mind, i was about to start a thread regarding this. i went to the track about 2 weekends ago and ive got oem rubber line going from my mech pump to regulator, then regulator to carb. probably close to 3 ft in all and they didn't say anything during tech inspection. im thinkin about upgrading my regulator and was wondering if i need to use braided line. I've heard that your not suppose to have more than 1 ft of rubber line. i really can't stand to pay for all the stupid AN fittings and braided line to be "legal"
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you're looking at $70-$80 to run braided line from the pump to a regulator then to the carb , this includes all fittings and hose
here's the NHRA regs for fuel line :
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baldwin motion phase III Z/30 clone
1972 chevy camaro ss
1970 LT1 350sbc / 425hp 11.1:1 comp, GM #140 off-road solid lifter cam ,holley strip dominator
2" open spacer and holley 750dp ...........all old school 70's performance parts
old school pic
my old school camaro idle video
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07-30-2009, 03:17:10 PM
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#8
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Veteran Member
Join Date: Jun 2009
Location: MPLS. MN.
Posts: 141
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Quote:
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Originally Posted by loudvolvo
sorry to threadjack but you musta been reading my mind, i was about to start a thread regarding this. i went to the track about 2 weekends ago and ive got oem rubber line going from my mech pump to regulator, then regulator to carb. probably close to 3 ft in all and they didn't say anything during tech inspection. im thinkin about upgrading my regulator and was wondering if i need to use braided line. I've heard that your not suppose to have more than 1 ft of rubber line. i really can't stand to pay for all the stupid AN fittings and braided line to be "legal"
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you don't have to buy all the fittings,...all you need is NHRA approved fuel line, they make an approved rubber line now (called push loc) you can use that with good ol fashioned hose clamps if you want. |
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07-30-2009, 03:21:32 PM
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#9
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Veteran Member
Join Date: Sep 2008
Location: Shelbyville, Ky
Posts: 364
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Quote:
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Originally Posted by BADHOTROD
you don't have to buy all the fittings,...all you need is NHRA approved fuel line, they make an approved rubber line now (called push loc) you can use that with good ol fashioned hose clamps if you want.
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damn, too late now. i ordered 3ft of braided line with fittings and a new regulator for $70. not too bad i guess. Id just hate to not pass tech inspection when i go down again, 1 hr drive to the track would suck if i couldn't run
__________________
1980 Z28
355 sbc/9.72:1 CR/Edelbrock Performer 600cfm/Edlebrock Performer RPM intake/Procomp Aluminium heads 180cc/1 5/8" headers/Summit Racing Camshaft/SpeedPro flat top pistons/built TH350
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07-30-2009, 03:50:25 PM
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#10
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Veteran Member
Join Date: Jun 2009
Location: MPLS. MN.
Posts: 141
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Quote:
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Originally Posted by loudvolvo
damn, too late now. i ordered 3ft of braided line with fittings and a new regulator for $70. not too bad i guess. Id just hate to not pass tech inspection when i go down again, 1 hr drive to the track would suck if i couldn't run
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oh well,...it will look good anyway 
I wish we had a track within an hour of mpls.
2 1/2 is the closest but usually drive 4 hours to get to the track I like. |
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07-30-2009, 06:25:08 PM
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#11
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70 Bucks For Safety And Peace Of Mind Is Cheap Dude ...  |
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