Fuel pump
Supreme Member
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Fuel pump
No access panel. Some folks cut one them selves but I don't recommend this. After you drop the axle, you will find that you can detach the exhaust behind the cat and let it hang. Of course this is much easier when the job is done on a rack.
Supreme Member
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: Fuel pump
You don't have to "cut" off the exhaust, unless you have it all welded. I simplt disconnected the I-pipe from the back of the cat and pulled the exhaust out the rear, dropped the tank, did the pump, replaced tank, bolted exhaust back up. I make it sound easy, it's not hard, just time consuming - think it took me 5 hours alone in the driveway.
Re: Fuel pump
Yea whatever smack tard owned it before me cut off the cat and had a bunch of goofy stuff welded in. I had the cat replaced and its still kinda piecemeal from behind the cat. Guess ill wait till the pump totally goes out, save some cash and redo the exhaust after the cat at the same time. I noticed you dropped the axle, do you have to drop it to get the tank out?
Supreme Member
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Fuel pump
You only have detach the shocks from the axle housing. This gives you enough clearance to wrestle out the exhaust and drop the tank.
Member
Joined: Apr 2010
Posts: 210
Likes: 0
From: Taylor, MI
Car: 1994 Camaro Z28 B4C T-tops,
Engine: LT1 350 5.7L 116K
Transmission: 4L60E (being rebuilt)
Axle/Gears: 3.23 Posi
Re: Fuel pump
i cut a hole in mine and then just got sheet metal and made a rubber gasket and sealed it all back up for easy access if ti goes out again, i say cut the hole, it will make a 5 or 6 hour job into about 45 min to an hour and 30 tops,
then once your carpet it back over it no one will know but you, and itll be alot easier if you ever have to change it again
then once your carpet it back over it no one will know but you, and itll be alot easier if you ever have to change it again
Supreme Member
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Fuel pump
I would be very angry if I bought a 3rd gen and found someone had cut a hole in it. You realize you save yourself almost no time doing that? The tank drop is not that bad if you just go through the steps. Plus, I do in tank fuel pumps by the dozens every year. Once replaced with a quality unit using professional methods, they don't fail again, not for years and years. Now you have rubber sections in your fuel lines sealed with hose clamps. You just created one more weak link.
Truth is, I run dual external fuel pumps. I have never liked in tank pumps. I have a Holley Blue race pump at the tank with AN10 braided into the tank through a bulkhead connector. Fuel runs through 1/2 line to a reservoir at the engine bay. The reservoir prevents fuel cutout in hard corners. If you carefully read my sig, you'll see the IROC Beast can corner very hard. From the reservoir, an Aeromotive EFI pump supplies the rails, pressure(70psi) is controlled by a Mallory EFI FPR.
Don't fool around with access doors. If you don't want to replace intank pumps, do away with them.
Truth is, I run dual external fuel pumps. I have never liked in tank pumps. I have a Holley Blue race pump at the tank with AN10 braided into the tank through a bulkhead connector. Fuel runs through 1/2 line to a reservoir at the engine bay. The reservoir prevents fuel cutout in hard corners. If you carefully read my sig, you'll see the IROC Beast can corner very hard. From the reservoir, an Aeromotive EFI pump supplies the rails, pressure(70psi) is controlled by a Mallory EFI FPR.
Don't fool around with access doors. If you don't want to replace intank pumps, do away with them.
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Supreme Member
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Fuel pump
Yes, you will need to detach the shocks, only from the axle tube. That's two bolts. This allows you to drop the axle out of the way.
Re: Fuel pump
I would be very angry if I bought a 3rd gen and found someone had cut a hole in it. You realize you save yourself almost no time doing that? The tank drop is not that bad if you just go through the steps. Plus, I do in tank fuel pumps by the dozens every year. Once replaced with a quality unit using professional methods, they don't fail again, not for years and years. Now you have rubber sections in your fuel lines sealed with hose clamps. You just created one more weak link.
Truth is, I run dual external fuel pumps. I have never liked in tank pumps. I have a Holley Blue race pump at the tank with AN10 braided into the tank through a bulkhead connector. Fuel runs through 1/2 line to a reservoir at the engine bay. The reservoir prevents fuel cutout in hard corners. If you carefully read my sig, you'll see the IROC Beast can corner very hard. From the reservoir, an Aeromotive EFI pump supplies the rails, pressure(70psi) is controlled by a Mallory EFI FPR.
Don't fool around with access doors. If you don't want to replace intank pumps, do away with them.
Truth is, I run dual external fuel pumps. I have never liked in tank pumps. I have a Holley Blue race pump at the tank with AN10 braided into the tank through a bulkhead connector. Fuel runs through 1/2 line to a reservoir at the engine bay. The reservoir prevents fuel cutout in hard corners. If you carefully read my sig, you'll see the IROC Beast can corner very hard. From the reservoir, an Aeromotive EFI pump supplies the rails, pressure(70psi) is controlled by a Mallory EFI FPR.
Don't fool around with access doors. If you don't want to replace intank pumps, do away with them.
Supreme Member
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Fuel pump
I'll admit, just because I don't agree doesn't mean it isn't true.
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