1. Attachments are working again! Check out this thread for more details and to report any other bugs.

HKS Upgrade

Discussion in 'Prime Accessories and Modifications' started by ho-kin ng, Aug 4, 2018.

  1. ho-kin ng

    ho-kin ng New Member

    Joined:
    Jul 11, 2018
    3
    2
    0
    Location:
    Florida
    Vehicle:
    2018 Prius Prime
    Model:
    Prime Advanced
    Fastest HKS upgrade I've ever done to a car lol 20180802_215744.jpg 20180802_221825.jpg
     
    GTprii and Depe like this.
  2. PHV PLS

    PHV PLS Member

    Joined:
    Mar 6, 2018
    157
    81
    0
    Location:
    California
    Vehicle:
    2017 Prius PHV
    Model:
    Prime Premium
    Link please
     
  3. slothsandwich

    slothsandwich Junior Member

    Joined:
    Aug 3, 2018
    27
    13
    1
    Location:
    Denver
    Vehicle:
    2018 Prius Prime
    Model:
    Prime Advanced
  4. a_gray_prius

    a_gray_prius Rare Non-Old-Blowhard Priuschat Member

    Joined:
    Jun 13, 2008
    2,927
    782
    0
    Location:
    IL
    Vehicle:
    2008 Prius
    Model:
    N/A
    I thought the easiest HKS mod was the deal you put on the side of the car.
     
    Mendel Leisk likes this.
  5. Fuel Miser

    Fuel Miser Junior Member

    Joined:
    Feb 19, 2010
    86
    22
    0
    Location:
    Ontario, Canada
    Vehicle:
    2010 Prius
    Model:
    N/A
    What improvements if any did you receive? I am looking to change out that tiny little filter for one that flows a bit better. I was looking at the aFe Pro Dry S that fits in the Prius c. aFe part# 31-10237 since both motors use the same filter size.

    Odd that Toyota would put such a small filter on a larger 1.8L motor.
     
  6. Woodman411

    Woodman411 New Member

    Joined:
    Jan 4, 2019
    23
    11
    0
    Location:
    New York, NY
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    It's 1.8L, but it's only generating 95 hp through an Atkinson cycle. Per wiki: "Due to a smaller portion of the compression stroke being devoted to compressing the intake air, an Atkinson-cycle engine does not take in as much air as would a similarly designed and sized Otto-cycle engine."
     
  7. Fuel Miser

    Fuel Miser Junior Member

    Joined:
    Feb 19, 2010
    86
    22
    0
    Location:
    Ontario, Canada
    Vehicle:
    2010 Prius
    Model:
    N/A
    I am totally aware of this, but what it does lead to is a smaller filter surface area that will dust load much faster, and lead to more frequent filter replacements. The 2010 Prius uses the same displacement engine and its filter is 8.66" x 7.36" whereas the Primes is only 7.0" x 4.64"

    I'm going to guess they can make more money selling air filters, so put the same filter from the 1.5L Prius C on the Prime and call it a day.
     
  8. Woodman411

    Woodman411 New Member

    Joined:
    Jan 4, 2019
    23
    11
    0
    Location:
    New York, NY
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    If the filter size is larger on the regular Prius, the above would be true... if the Prime used its ICE as often as the regular Prius.