TBI Vacuum adjustable Fuel Pressure Regulator Kit
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Car: 1991 firebird formula
Engine: 5.8
Transmission: 700r4
Axle/Gears: 3.42
TBI Vacuum adjustable Fuel Pressure Regulator Kit
I just found this on the TDS web site and I was wondering if it was worth is. http://www.top-downsolutions.com/pro...24f6ced8bb34b7
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Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
hows the air get down in their with that huge tube in the way??
also kind of off topic, but whats the advantang of changing your fuel pressure? if i incresed my fuel pressure on ym stock l03, would i increase any performance?
also kind of off topic, but whats the advantang of changing your fuel pressure? if i incresed my fuel pressure on ym stock l03, would i increase any performance?
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Car: 1992 Firebird
Engine: forged 357
Transmission: 700r4, 2200-2400 stall, vette servo
Axle/Gears: stock pegleg 2.73 drum (temp)
Shifty, should I get one of those?
I'd modify my spacer ring with a grinder to keep that hose out of the way. looks like it really affects air flow man
I'd modify my spacer ring with a grinder to keep that hose out of the way. looks like it really affects air flow man
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by Token
Shifty, should I get one of those?
I'd modify my spacer ring with a grinder to keep that hose out of the way. looks like it really affects air flow man
Shifty, should I get one of those?
I'd modify my spacer ring with a grinder to keep that hose out of the way. looks like it really affects air flow man
Originally posted by Traviz
also kind of off topic, but whats the advantang of changing your fuel pressure? if i incresed my fuel pressure on ym stock l03, would i increase any performance?
also kind of off topic, but whats the advantang of changing your fuel pressure? if i incresed my fuel pressure on ym stock l03, would i increase any performance?
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Car: 89 Shortbox
Engine: 350 Vortec
Transmission: 700r4
I don't like the vac regulators at all. I ran one last year and had nothing but problems, with quick accel engine stumbles. With running high pressure , the thing would casue big spikes in my pressure (only for a split sec). Motor runs better with no vac reg and a ltittle lower fuel pressure. They do however band-aid fix a cam install, without having to burn proms.
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by seanof30306
shifty,
running that vacuum hose around to the front sure looks like it's restricting the airflow. wouldn't it be better to hav it exit at the rear?
shifty,
running that vacuum hose around to the front sure looks like it's restricting the airflow. wouldn't it be better to hav it exit at the rear?
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Car: 89 Shortbox
Engine: 350 Vortec
Transmission: 700r4
When I had one, I just grabbed that little vac line and bent it 1/3 of a trun to the back, then drilled a hole in the bottom of my air cleaner, to slide the vac hose through.
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Car: 90 454SS
Engine: 454 TBI
Transmission: TH400
Cut the bend off of the vac fitting on the fpr. Install a molded 90 degree vac fitting and use some of the small hard plastic line GM uses for the vac canister, etc. Route the line out the back of the TB where the fuel lines enter.
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by Low C1500
When I had one, I just grabbed that little vac line and bent it 1/3 of a trun to the back, then drilled a hole in the bottom of my air cleaner, to slide the vac hose through.
When I had one, I just grabbed that little vac line and bent it 1/3 of a trun to the back, then drilled a hole in the bottom of my air cleaner, to slide the vac hose through.
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Car: 92RS
Engine: 357
Transmission: 700R4
I turned the regulator 90*, trimed the length down and ran it out the back. I had to trim a tab on the flange to be abile to turn it 90*. Mine worked real good when I was running a LT1 cam. I was using about 15 lbs of pressure ( with no vacuum connected). I am running strait pressure with my setup now.
Shifty, get that darn hose out of the flow or we'll fire you as a moderater. Ya got to set a better example then that.
Shifty, get that darn hose out of the flow or we'll fire you as a moderater. Ya got to set a better example then that.
Last edited by JokerRS; 04-01-2004 at 04:53 PM.
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i tried it and did not like it. i needed more fuel down low as well as up top. i could have added more fuel down low with high FP and then regulate excess fuel on top with another REG but decided not worth it. issues with on gas hard and off and back on. imagine a road course. the vac signal not immediate enough and the vafpr slow to react. running independent of computer control. running large injectors with tuning was a better way to manage fuel.
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by Ronny
i tried it and did not like it. i needed more fuel down low as well as up top. i could have added more fuel down low with high FP and then regulate excess fuel on top with another REG but decided not worth it. issues with on gas hard and off and back on. imagine a road course. the vac signal not immediate enough and the vafpr slow to react. running independent of computer control. running large injectors with tuning was a better way to manage fuel.
i tried it and did not like it. i needed more fuel down low as well as up top. i could have added more fuel down low with high FP and then regulate excess fuel on top with another REG but decided not worth it. issues with on gas hard and off and back on. imagine a road course. the vac signal not immediate enough and the vafpr slow to react. running independent of computer control. running large injectors with tuning was a better way to manage fuel.
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by va454ss
There's a cal out there that takes in to consideration the fuel flow changes of the vac ref fpr.
There's a cal out there that takes in to consideration the fuel flow changes of the vac ref fpr.
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Car: 90 454SS
Engine: 454 TBI
Transmission: TH400
Originally posted by ShiftyCapone
A cal?
A cal?
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by va454ss
http://www.efitune.com/forum/index.p...=ST&f=17&t=98&
http://www.efitune.com/forum/index.p...=ST&f=17&t=98&
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