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

phunk

The pump kit in that photo seems ridiculous to me. I can see for maybe a low pressure scavenge system it would be fine.. but still, why even produce a fuel pump case without barbs? Seems like a proprietary fitment that should only be used with a bushing in a case, and inappropriate for use with a hose and clamp.

__________________

BossJ

So - so far the only way I've 'fixed' this and hopefully it stays fixed is with a - heat shrink e85 tube... and double clamp... I know a few others have used this pump and it's fine, but that's my only solution.

My question is, I need to get the regulator and venturi jet drilled now? Seb didn't mention anything about this...

Here's a maybe separate issue? I'm randomly getting RPM drops after driving for a bit and stopping. I'm cleaning my MAFs and throttle bodies tomorrow - so far that seems to be the more likely culprit, could it be the new fuel pump?

Seb said I didn't need a new tune and he looked at my tune after fuel pump installation and said it was fine - other than the rpm drop (he's looking into it).

Thanks guys

__________________
2016 Pearl White 370Z Nismo (6ma) || Z1 CAI || Greddy GT X || FI Resonated Test Pipes || Ported Manifolds || Fuel Pump: aem50-1200 || 1050cc Fuel Injectors || E85 || RJM Performance Clutch || ECUTECH - SpecialtyZ (Seb)

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 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.

__________________

BossJ

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

__________________
2016 Pearl White 370Z Nismo (6ma) || Z1 CAI || Greddy GT X || FI Resonated Test Pipes || Ported Manifolds || Fuel Pump: aem50-1200 || 1050cc Fuel Injectors || E85 || RJM Performance Clutch || ECUTECH - SpecialtyZ (Seb)

phunk

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.

__________________

BossJ

Thank you.

__________________
2016 Pearl White 370Z Nismo (6ma) || Z1 CAI || Greddy GT X || FI Resonated Test Pipes || Ported Manifolds || Fuel Pump: aem50-1200 || 1050cc Fuel Injectors || E85 || RJM Performance Clutch || ECUTECH - SpecialtyZ (Seb)

THE BULL

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.

BossJ

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.

__________________
2016 Pearl White 370Z Nismo (6ma) || Z1 CAI || Greddy GT X || FI Resonated Test Pipes || Ported Manifolds || Fuel Pump: aem50-1200 || 1050cc Fuel Injectors || E85 || RJM Performance Clutch || ECUTECH - SpecialtyZ (Seb)

Optimiser

Well I guess I've been lucky then.