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02-06-2020, 03:27 PM
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#1 |
 Drives: LSA HSV R8 Join Date: Dec 2017
Location: Australia
Posts: 3
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Squash fuel system
Hi this is one of my first posts , and from Australia
I have had installed a squash twin pump in my LSA HSV CLUBSPORT R8 which is basically the same running gear as a 5th gen ZL1 . Anyway since the install of the pump with external reg and return line the tank is pressurising really badly the car is a daily driver and has 711 rwhp .. I have had it back at the shop that did the work 3 times and the don’t know what’s going on so I refuse to take it back so before I take it to another shop I though I would see if anyone else had the same problem with the squash setup any help with be so appreciated |
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02-06-2020, 05:10 PM
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#2 |
    Drives: 2013 ZL1 and 2019 Ram Laramie Join Date: May 2017
Location: Milwaukee
Posts: 1,259
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I'm no expert, but that is pretty difficult to diagnose online. If the shop installed it: they ought to fix it.
What type/size injectors, and what pressure are you reading? Was it properly dialed in when installed? A stuck regulator will cause high pressure. |
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02-06-2020, 05:42 PM
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#3 |
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Drives: LSA HSV R8 Join Date: Dec 2017
Location: Australia
Posts: 3
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1000cc injectors and fuel pressure is 50 psi and goes up to about 70 psi at WOT , and it has already been back there twice and they had the return line going back through the billet rails and it was boiling the fuel also they did a service on the transmission and that was lacking oil and slipping when I picked it up so I have absolutely no confidence in this shop no more if they dialed it in as you say or not I wouldn’t know as they done so many other things wrong I don’t trust them with a lawn mower let alone my car
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02-10-2020, 12:03 AM
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#4 |
 
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Bad regulator?
Restricted lines? Plumbed wrong?
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