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Old March 12th, 2007, 07:18 PM   #1
Gr8wht2000GMC
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Default 91 Geo tracker fuel pressure?

how much fuel pressure is req'd for a 91 with a 1.6L? Could I run this engine on a frame mounted elec. pump? its a tbi system so I think I may be able to do this?!
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Old March 13th, 2007, 07:40 AM   #2
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I'm not sure on this, but most TBI's are between 9-14 psi
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Old March 13th, 2007, 11:05 AM   #3
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carbs are between 5-7 psi
efi / tbi are 30-40 psi

I'm running an in-line pump for a mid 80's ford 302
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Old March 15th, 2007, 04:14 PM   #4
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FUEL SYSTEM PRESSURE SPECIFICATIONS


Engine Idling 240-280 kPa (34-41 psi)

Key ON engine OFF 240-280 kPa (34-41 psi)

Key ON engine ON 172 kPa (25 psi)


you need an in tank pump that came with the truck
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Old March 15th, 2007, 06:12 PM   #5
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thanks 95geo, its just so rusted up and rigged to drive that i hoped to cheat once more! Altho the pump will be fairly easy to access because the floor in back is plywood and fibergass, Ill just cut me a hole in the floor!
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Old March 16th, 2007, 08:47 PM   #6
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if it is just a beater you can use any in tank fuelpump that looks close. i ran a civic pump in a toyota pickup. they don't fit in sending unit perfect but a couple zipties u r good to go. so if you cannnot find a tracker 1 start lookin for civic. there is usually a ton in the junkyard. also tracker fumps r known to fail. i have 2 spares for my samurai. and have replaced 1 in my old tracker.
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Old March 16th, 2007, 09:02 PM   #7
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Default its a beater alright !

yea its a beater. I bought it for my wife and she drove the piss outa it for a couple years. then the back seat brackets rusted off (along with the rest of the rear floor) so I inttalled a treated wood floor and sealed the edges with fiberglass. then when gas hit me hard in my 454 I started to drive it. now the pump is out and i hate to try to drop the tank. but i want the 28 mpg!!
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Old March 17th, 2007, 11:28 AM   #8
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just cut a hole in the floor. i u r not sure were it is at i can take a pic of top of tank. but it was just 4 bolts to drop it. but when i did my fuel tank i cut it open and peeled it up but with doin that you have to cut into your door seal since the tank is so far back.
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Old March 18th, 2007, 08:00 AM   #9
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i engineered some boby lift into this POS a couple years ago. I can see the top of the tank pretty clearly. Thanx for the offer tho!
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