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turbo_jimi Member
Joined: 23 Feb 2004 Posts: 1206 Location: Tacoma
1985 Chevrolet Camaro Z/28
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Posted: Thu May 02, 2013 8:22 pm Post subject: Edelbrock Fuel Pump 1721 |
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Hi. John and I installed this last Saturday in the 85 because the stocker was leaking oil and about to explode. It has no return line. Do I need to vent this? Also, the throttle response seems better. Is that my imagination or can a fuel pump do this? Also, will I need to adjust my AFR on the carb due to the swap? It seems like it drives better but did notice the fuel odor was a little stronger than usual but nothing leaking. _________________
1985 Z28 Crate 350, Hurst T-5, 3.23s, Flowmaster Under previous set-up: 143.82 rwhp 216.98 lbs. torque @4390 rpms 3/12/11 |
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chevymad Master B
Joined: 11 Jan 2004 Posts: 5473
1987 Pontiac Formula
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Posted: Thu May 02, 2013 8:36 pm Post subject: |
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If the old pump wasn't keeping up then you might notice a difference. Shouldn't need to change anything. |
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turbo_jimi Member
Joined: 23 Feb 2004 Posts: 1206 Location: Tacoma
1985 Chevrolet Camaro Z/28
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Posted: Thu May 02, 2013 8:42 pm Post subject: |
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Cool! _________________
1985 Z28 Crate 350, Hurst T-5, 3.23s, Flowmaster Under previous set-up: 143.82 rwhp 216.98 lbs. torque @4390 rpms 3/12/11 |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Fri May 03, 2013 5:28 am Post subject: |
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The return line was a vapor lock thing IIRC. I would cap that line well as it is submerged and could theoretically siphon if there were pressure in the tank.
Do you have a normal functioning tank vent? |
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turbo_jimi Member
Joined: 23 Feb 2004 Posts: 1206 Location: Tacoma
1985 Chevrolet Camaro Z/28
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Posted: Fri May 03, 2013 6:06 am Post subject: |
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aaron_sK wrote: | The return line was a vapor lock thing IIRC. I would cap that line well as it is submerged and could theoretically siphon if there were pressure in the tank.
Do you have a normal functioning tank vent? |
I believe so. _________________
1985 Z28 Crate 350, Hurst T-5, 3.23s, Flowmaster Under previous set-up: 143.82 rwhp 216.98 lbs. torque @4390 rpms 3/12/11 |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Fri May 03, 2013 1:49 pm Post subject: |
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What does normal tank vent entail? |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Fri May 03, 2013 8:42 pm Post subject: |
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1/4" steel line from top of sending unit to charcoal can underhood. |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Sat May 04, 2013 12:08 am Post subject: |
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I do not have then. I have a rubber hose on end od that line under my hood that goes to inder car |
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turbo_jimi Member
Joined: 23 Feb 2004 Posts: 1206 Location: Tacoma
1985 Chevrolet Camaro Z/28
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Posted: Sat May 04, 2013 8:56 am Post subject: |
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aaron_sK wrote: | 1/4" steel line from top of sending unit to charcoal can underhood. |
I have the line but not the can. _________________
1985 Z28 Crate 350, Hurst T-5, 3.23s, Flowmaster Under previous set-up: 143.82 rwhp 216.98 lbs. torque @4390 rpms 3/12/11 |
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RSFreak The other "John"
Joined: 23 Jan 2004 Posts: 2946 Location: Renton
1989 Chevrolet Camaro RS
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Posted: Sat May 04, 2013 10:34 am Post subject: |
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Put a filter on the end of the line. _________________ '86 Trans Am - 5.0L TPI - LT1 cam - 700R4 - WS6
'85 Camaro Berlinetta - IROC clone
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turbo_jimi Member
Joined: 23 Feb 2004 Posts: 1206 Location: Tacoma
1985 Chevrolet Camaro Z/28
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Posted: Sun May 05, 2013 4:25 pm Post subject: |
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Which line? _________________
1985 Z28 Crate 350, Hurst T-5, 3.23s, Flowmaster Under previous set-up: 143.82 rwhp 216.98 lbs. torque @4390 rpms 3/12/11 |
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RSFreak The other "John"
Joined: 23 Jan 2004 Posts: 2946 Location: Renton
1989 Chevrolet Camaro RS
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Posted: Sun May 05, 2013 6:17 pm Post subject: |
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The one that originally went into the charcoal canister. _________________ '86 Trans Am - 5.0L TPI - LT1 cam - 700R4 - WS6
'85 Camaro Berlinetta - IROC clone
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