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IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

IS350 fuel pump upgrade

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Old Mar 11, 2021 | 09:04 PM
  #1  
Thannp's Avatar
Thannp
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Default IS350 fuel pump upgrade

For those who are looking to upgrade the fuel pump on their IS350. I can confirm that the ISF fuel pump fit the is350 without any modification. if you can source the whole housing not just the pump

Direct replacement / plug and play.

Zero problem with the fuel gauge or other electronic stuff. Fuel Gauge shows accurate range.

I did it out of curiosity. My car didn't need the upgrade pump but I figured I should do it cause the old pump maybe on its way out soon.

it would be nice if anyone can provide the flow rate of both pump so we know how much of an upgrade we get going for the ISF pump


Thanks!

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Old Mar 12, 2021 | 09:42 AM
  #2  
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Default

Originally Posted by Thannp
For those who are looking to upgrade the fuel pump on their IS350. I can confirm that the ISF fuel pump fit the is350 without any modification. if you can source the whole housing not just the pump

Direct replacement / plug and play.

Zero problem with the fuel gauge or other electronic stuff. Fuel Gauge shows accurate range.

I did it out of curiosity. My car didn't need the upgrade pump but I figured I should do it cause the old pump maybe on its way out soon.

it would be nice if anyone can provide the flow rate of both pump so we know how much of an upgrade we get going for the ISF pump


Thanks!
I'm thinking you can get that data from the car via the injector duty cycle times.... Maybe? Assuming we know their flow rate that is. Should get you close.
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Old Jun 19, 2021 | 04:40 PM
  #3  
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Default Have you ever looked into upgraded injectors as well?

Originally Posted by Thannp
For those who are looking to upgrade the fuel pump on their IS350. I can confirm that the ISF fuel pump fit the is350 without any modification. if you can source the whole housing not just the pump

Direct replacement / plug and play.

Zero problem with the fuel gauge or other electronic stuff. Fuel Gauge shows accurate range.

I did it out of curiosity. My car didn't need the upgrade pump but I figured I should do it cause the old pump maybe on its way out soon.

it would be nice if anyone can provide the flow rate of both pump so we know how much of an upgrade we get going for the ISF pump


Thanks!
Do you believe the same can be done with IS-F injectors ? I see that VQ platform upgrade their injectors by using GTR injectors. I wonder if the same can be done with the is350 and IS-F
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