Originally Posted by phunk The concern with running the Z1 second pump full time is that the driver side of the fuel tank in a Z is generally empty during
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09-06-2018, 03:25 PM | #61 (permalink) | |
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09-06-2018, 04:22 PM | #62 (permalink) |
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Don't know that about the Z1 kit.
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09-06-2018, 06:06 PM | #63 (permalink) |
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Wow, I was seriously considering Z1 kit for the price, but Phunk’s explanation pulls me back to the darker side lol.
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09-06-2018, 06:26 PM | #64 (permalink) |
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If you are thinking about it. Get Phunk's RRP kit with the billet hat for the right side too. Then your system will be bullet proof.
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09-06-2018, 06:29 PM | #65 (permalink) |
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A toggle switch could be made for Z1 and run it for track only
Or maybe just run stock pump a Y and a extra line with a Hydramat to passenger side
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09-06-2018, 08:36 PM | #66 (permalink) | |
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09-07-2018, 09:56 AM | #67 (permalink) | |
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Car sputtered to a stop 1500’ after a 500’ right turn on the street which I took moderately at best and with 7 gal. in the tank. Suitcase in the back didn’t even shift. There’s more details in the actual thread. I came proactively seeking starvation solutions one of which is the be all end all; however, IMO overkill for a street only setup and the other while no failures in the track cars it was meant for leaves ends untied for the street.
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09-07-2018, 12:52 PM | #68 (permalink) |
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The only issue i've had was user error during install from not securing a fuel line down correctly.
Otherwise, the Z1 kit works. Negatives are that I do still worry about the left pump being starved and running dry outside of track days, and I always keep the tank filled when possible. And that my fuel lights have read 1/4 tank lower than they actually are ever since the install. (maybe also user error). CJM's product quality is worth the extra cost, though, if budget permits. More stable solution, and nicer hardware than the Z1 kit.
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09-07-2018, 01:25 PM | #69 (permalink) | |
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Very often, it happens immediately after molesting the fuel pump housing for modifications. I am not sure the source of the problem, I would need the car here to diagnose it. But dont feel bad, it is a common occurrence after fuel system work. One suspicion I have, is the in-tank siphon hose slack interfering with the fuel level float arm travel. But I have in the past run into slightly worn level sensors that do not read correctly. |
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09-07-2018, 01:35 PM | #70 (permalink) | |
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09-09-2018, 12:23 PM | #71 (permalink) | |
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I've decided against the pre-packaged starvation kits at the moment. Instead I'm replacing the entire OE fuel pump assembly with a new one due to the sound of my fuel pump motor prime changing during the issue. I have a feeling the fuel pump motor is on its way out. I'm currently debating using a Hydramat in lieu of the OE pickup sock but trying to find out the O.D. of the OE pump inlet as Holley only offers 11mm for such a configuration.
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09-09-2018, 12:51 PM | #72 (permalink) | |
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09-09-2018, 01:25 PM | #73 (permalink) | |
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09-09-2018, 03:44 PM | #74 (permalink) |
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Later this evening or tomorrow I can give you the part number for the hydramat that will best fit the bottom of th stock pump.
I’m not sure if you have looked at the fuel pump housing yet, but if not... putting a hydramat on there isn’t going to be so simple as just attaching it to the pump. You will need to cut away quite a bit of the bucket for the hydramat to spread out. It also isn’t going to reach to the driver side of the tank so it will only contribute a small bit to reducing starvation tendency because the only benefit will be collection of fuel outside the bucket, but still passenger side of tank only. |
09-09-2018, 03:45 PM | #75 (permalink) |
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Many people who’s top hat is already broken reported a change in the fuel pump sound when it must have occured. With his last post mentioning a change in sound, he might already need the top hat.
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