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AEM E85 Fuel Pump - Tube keeps falling off...

Originally Posted by phunk The drilling was probably done at the same time the fuel pump was installed. Especially if you had it installed at SpecialtyZ, they would be well

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Old 06-24-2021, 02:40 PM   #1 (permalink)
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The drilling was probably done at the same time the fuel pump was installed. Especially if you had it installed at SpecialtyZ, they would be well aware that you need to do that any time you upgrade the fuel pump in the Z. You may as well keep using the pump since you already have it and its holding together for now. But anyone reading this thread should be able to tell they should avoid it and get something else if they didnt already buy one.
So I should of been more clear.

I'm in FL - so I just chat to Seb on the phone every great while. My shop in town, did not drill anything.

I take it, that NEEDS to be done - What do I tell them exactly to do? I'm going to Ztuner in Bradenton tonight, to get it dyno'd and looked at...

I just got my MAFs and TBs cleaned out as well.




Thank you
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Last edited by BossJ; 06-24-2021 at 03:10 PM.
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Old 06-24-2021, 03:16 PM   #2 (permalink)
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So I should of been more clear.

I'm in FL - so I just chat to Seb on the phone every great while. My shop in town, did not drill anything.

I take it, that NEEDS to be done - What do I tell them exactly to do? I'm going to Ztuner in Bradenton tonight, to get it dyno'd and looked at...

I just got my MAFs and TBs cleaned out as well.




Thank you
If the pump is flowing as advertised, it would need to be done. A fuel pressure gauge is the only way to confirm its necessary, or that drilling has been sufficiently performed.

https://cj-motorsports.com/p/tech

find the 370z fuel pump tech PDF. Have them read section 8 and 9 on repeat until it makes sense.
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Old 06-24-2021, 03:23 PM   #3 (permalink)
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If the pump is flowing as advertised, it would need to be done. A fuel pressure gauge is the only way to confirm its necessary, or that drilling has been sufficiently performed.

https://cj-motorsports.com/p/tech

find the 370z fuel pump tech PDF. Have them read section 8 and 9 on repeat until it makes sense.
Thank you.
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Old 06-28-2021, 10:12 AM   #4 (permalink)
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So I should of been more clear.

I'm in FL - so I just chat to Seb on the phone every great while. My shop in town, did not drill anything.

I take it, that NEEDS to be done - What do I tell them exactly to do? I'm going to Ztuner in Bradenton tonight, to get it dyno'd and looked at...

I just got my MAFs and TBs cleaned out as well.




Thank you
Keep us updated, usually when taking things to others and these issues happen then I would ask the OP to take it back to that person and have them at it. Usually as well those that end up taking the work know how to on these installs (hopefully) and are able to get it fixed.

The reason why it's popping off after the right measures are taken is excess pressure from the pump.
With a fuel pressure gauge you'll be able to confirm this theory and can point you in the right direction as to what next.
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Old 07-01-2021, 11:45 AM   #5 (permalink)
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Keep us updated, usually when taking things to others and these issues happen then I would ask the OP to take it back to that person and have them at it. Usually as well those that end up taking the work know how to on these installs (hopefully) and are able to get it fixed.

The reason why it's popping off after the right measures are taken is excess pressure from the pump.
With a fuel pressure gauge you'll be able to confirm this theory and can point you in the right direction as to what next.

Chatted with seb - after putting on dyno - I’m 30hp off where I should be. Getting it drilled tomorrow and fuel gauge installed and then Seb is retuning it.

I’ll keep you posted.
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