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DIY Denso 265lph drop-in Fuel Pump (Made in Japan)

  #1  
Old 07-15-2016, 04:05 AM
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DIY Denso 265lph drop-in Fuel Pump (Made in Japan)

I install my Denso 265 liter per hour direct Drop-In Fuel Pump today.
I had research several other fuel pump and this one is exactly the same design at the outlet pipe just like our OEM Honda Fit fuel pump (also Denso).

The Mitsubishi Evo X fuel pump is also Denso but slightly lower flow rate compare to my Denso 265lph fuel pump.

The deatschwerks DW65c also have the 265 lph flow rate but the design of its outlet pipe is slightly different compare to Honda Fit OEM fuel pump and it make the O-Ring could slip resulting in leakage...
and Deatschwerks fuel pump is not made in Japan...111111

This Denso can be used for BRZ/FR-S and Nissan GT-R (require 2unit for GT-R), so this is a very potent pump

That makes me worry, that it could raise the pressure too much for our Honda Fit application... and I might have to plumb a return line with adjustable (boost dependent) fuel pressure regulator...

So...
before I replace my fuel pump,
I once again check the current fuel pressure using the stock fuel pump
and it's stable at 52psi:



So I start the process by taking out the two bolts that hold the parking brake lever and move the parking brake lever out of the way...
Oh, I already had my center console removed this past few months because
I cover the center console in leather and yellow stitching otherwise I need
to take out the center console before I can access the fuel pump opening...






Then I need to turn counterclockwise on all 4 plastic bolt that hold the
fuel pump cover...
 
Attached Thumbnails DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1601_83132ba5ffee224673693683a66ec02feacff850.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1603_627d4f40a13d32df131d98c7c545c58e927e667c.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1604_f37c462e8532666de452f53b3bcfcd2891c6d44b.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1605_93ef7c6030353602f85cced98faffdcc0f002f3a.jpg  
  #2  
Old 07-15-2016, 04:18 AM
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then open the cover:



after that, use Honda Special tool to open the giant plastic ring/nut
that hold the fuel pump cage in place:





After the nut removed:






The Fuel Pump Cage assy:




Remove the tabs and all socket connection:












After removal of the lower bottom cover,
we know see the exposed fuel pump with the fuel filter:



Remove the plastic piece that hold the fuel pump, then you can remove the fuel pump:





Now compare side by side between the old stock OEM HOnda Fit (yellowish color) and the silver color of the new Denso, the are exactly the same:









Move the o-ring SPACER from the stock Honda to the new Denso and put the new o-ring that came with the new Denso pump, I also reuse the old o-ring from the stock Honda fuel pump just so to make it double o-ring and more leak proof:








 
Attached Thumbnails DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1606_f5662c47ad5fc87e81a626b3ad84a02b2c013365.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1607_1227e651a87b4cb9a5e9206c2e8910ba986176a5.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1609_df4c2311f33f8d8a9b077f6f7747dae93a66fa02.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1610_34ff166e24fef5b6d25680540335445a3bb83d30.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1611_07fccbad1dfe803847b59b6992d95efb50a5a037.jpg  

DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1612_714ccccf0feaf5ebb65215e398c7e27dc40e9330.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1622_e81859c21f34741d77fde088583f490b9c03f8c6.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1623_e4578cd8045bc2e5c8831718fb1832955e8644ac.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1621_6136419f5c34602a385fad4514fa3cf9c4a0b264.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1627_88e972cc3f38bb78fcf2c0abca3288174bf0e2c6.jpg  

DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1626_72489caedadde3088914a4c3eda68e1ab893f67a.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1628_5fbc06fc2b7a202369d2c7a5d6e7ebaa84301061.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1635_03406d5facdd92cd5479ee5fa91a27c87825450a.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1636_ae97f1d25a17a1ddceb16cc5f1e5d9fb1dd906d7.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1642_5f23d1e3e41733ad9f367da3cb23be0821c5c94d.jpg  

DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1645_d1cc51072dfe3d2182690ef2e1e009e13a14f577.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1646_03d6cac5e8c613fb77be82ccc4f3b7ff7b94f82f.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1644_f72c81f34ff86baf8a3b766355042568961d642d.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1647_239035c0775c8f021610f727ddf846ef8c5b9b52.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1648_3aaaa876cc1016e030b09413cc61d26df95b5b73.jpg  

DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1649_03faf121df216d67f47ffd6b7c13b5c18936167a.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1650_7cfc5399eb330612fd5802863c68283526acaef9.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1651_d186d61394f341aca6e03bc124997f612bc9f9b7.jpg  
  #3  
Old 07-15-2016, 04:29 AM
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Use Engine Oil to lubricate the oring before install it back to the cage...
Oh, I also need to swap the old fuel filter to the new Denso because the fuel filter that came with the Denso is not compatible (face different direction):







Also transfer the rubber cover of the old fuel pump, and push back the plastic holder of the fuel pump and you are done with the fuel pump swap:




I also bought Fuel Pressure Regulator that came with the seal kit for Honda Accord who happended to have the same seal kit and that large ring nut and other gasket that we need...
but unfortunately the Honda Accord Fuel Pressure only have an inlet diameter of 2mm while the stock honda fit wth 2.65mm inlet diameter should flow more and allow for lower pressure, so I just transfer all the oring from this new fuel pressure regulator onto the stock Fit fuel pressure regulator and I am done.







by the way, removing the fuel pressure regulator is very easy,
just 2 metal clip holding the fuel pressure regulator assy and pull it out,
to install just reverse procedure:



Install back the fuel cage into the fuel tank and turn on the car,
and the pressure with this larger flow Denso is just 58psi...
so I decided it's still ok and no need for dedicated new fuel return line or adjustable fuel presure regulator..



This slightly rich Air to Fuel ratio should also help with my Sprintex application,
and I plan to install my Sprintex Supercharger tomorrow
 
Attached Thumbnails DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1660_29f12025b2ebe2558233977e6b5995f0eddcf809.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1661_e1432ee1c55bf5bb9d04be6665fa0c87bfab1eba.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1662_2f59431bd803f3797d7b2fd03d60f1025f5b1657.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1664_e838730ebfd56acc9ca54c387337703c089059a0.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1666_99ca9c79e785ad68e20cdf0e5edc2777f204f373.jpg  

DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1654_7ba30f091839b29ffb22f5d2b4da1d0f03d0db30.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1655_cee3e03b9d7d7272a1ceb756436047d8c7a1eb39.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1652_ce9c16fff26e780bd4f13f857ac5fe73da6f5214.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1653_a5d52ce8d8c43c3611a6af02147a3b7eaa1e259b.jpg   DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1657_8a6d9040210492277c2a5574bd801ff36324546f.jpg  

DIY Denso 265lph drop-in Fuel Pump (Made in Japan)-80-img_1670_b088c32a8dc94f2f5563c63f5769fce5937f4724.jpg  
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Old 10-12-2016, 08:19 PM
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Great post, Thanks for all the pictures!
 
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Old 10-12-2016, 11:59 PM
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Originally Posted by devmail View Post
Great post, Thanks for all the pictures!
Thank You but few months ago, the importer no longer have this fuel pump available... I don't know about now, maybe they have it back in stock...
but you can always use the OEM Mitsubishi Evo fuel pump
 
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Old 11-15-2016, 10:52 AM
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Originally Posted by BMW ALPINA View Post
Thank You but few months ago, the importer no longer have this fuel pump available... I don't know about now, maybe they have it back in stock...
but you can always use the OEM Mitsubishi Evo fuel pump
Yes, that's what I plan on using. Would reusing the stock FPR result in a higher fuel pressure, is that why you switched to the Accord?

Also, what all needs to be replaced as far as gaskets go? Can these be reused? Thanks!

I plan on using this with my wet nitrous setup.
 
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Old 11-15-2016, 11:14 AM
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Originally Posted by devmail View Post
Yes, that's what I plan on using. Would reusing the stock FPR result in a higher fuel pressure, is that why you switched to the Accord?

Also, what all needs to be replaced as far as gaskets go? Can these be reused? Thanks!

I plan on using this with my wet nitrous setup.
Hi, Initially, I plan to use the Accord FPR hoping to lower the Fuel Pressure but after careful examination,
I see that the original FIT FPR have larger holes, so I decide to keep the Fit FPR but use the new gasket / O-Ring from the Accord one.
 
  #8  
Old 02-02-2018, 09:13 PM
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i plan to go this route too! thanks for all of your pictures!
 
  #9  
Old 02-03-2018, 12:27 PM
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Looking at those pictures...I'm pretty sure I would not attempt that modification for myself.
I am however, considering getting a Deli Chicken meal at the grocery store.
 
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