Bulletproofing a super 186
Close
Login to Your Account
Honda Grom Forum

Bulletproofing a super 186

This is a discussion on Bulletproofing a super 186 within the Grom Builds forums, part of the Honda Grom Forums category; Looking to make my ported 186 virtually bullet proof. I've done a lot of reading and have an idea on most parts, but still curious ...

Results 1 to 7 of 7

Thread: Bulletproofing a super 186

  1. #1
    Member
    This user has no status.

    Member #
    30360
    Join Date
    Nov 2018
    Posts
    40

    Bulletproofing a super 186

    Looking to make my ported 186 virtually bullet proof.
    I've done a lot of reading and have an idea on most parts, but still curious what your opinions are. Open to any and all suggestions. No need to be a D!(◊H34D. Thanks folks.

    I have:
    DHM 186 kit w/flashed ecu
    Custom intake
    Hindle exhaust
    TB cam
    Clutch springs 60% w/ chimera plate
    Crankcase breather
    Takegawa high flow oil pump

    I have to install:
    Ported head
    Koso dash
    Hoedar with LC2 wideband

    I need:
    AFR gauge compatible with the LC2
    cam chain tensioner
    4th bearing
    5 speed transmission?
    forged crank and rod
    Head temp sensor (read that koso gauge is generally off)
    OTB cam cover vs gromfathers vented cover?
    Koso 34mm intake/manifold
    I'll be making another custom intake

  2. #2
    Senior Member
    is doing grom things
    phillybuilt's Avatar
    Member #
    20097
    Join Date
    May 2017
    Location
    CT
    Posts
    353
    If you still have the 2 valve head, Yuminashi chain and tensioner. If 4 valve, Takegawa or Kitaco both make HD cam chains.

    I found out about a week after ordering mine that it doesn't work for a 4 valve... doh.

    Sent from my SAMSUNG-SM-G935A using Tapatalk

  3. #3
    Senior Member
    This user has no status.
    GlockPointer's Avatar
    Member #
    3606
    Join Date
    Jul 2014
    Posts
    352
    I don't see oil cooler on that list, I run Kitaco 5 row, high mount

  4. Remove Advertisements
    HondaGrom.net
    Advertisements
     

  5. #4
    Senior Member
    is fiddling with RZ350's now!
    WV_Grom's Avatar
    Member #
    4799
    Join Date
    Feb 2015
    Location
    North Central WV
    Odometer
    400
    Posts
    911
    A Taki catch can is the bees knees.

    I found with the BBK and the torque that comes with it, there is no need for a 5 speed. I am running a 17 Toother up front.

    Get a good seat so your hemmies are comfy. (Seat Concepts).

    If you want an accurate gauge, Opmid V2.
    2018 Grom
    Koso 170 4V/34mm TB/Koso injector/ DIY intake/ aRacer Mini5 + AF1 + DG1
    Koso pump & chain tensioner/ Stock clutch ring / 60% stiffer springs
    Takegawa Crank Support Bearing / Takegawa Catch Can / Kitaco Clutch cover
    Clear cam sprocket cover/ Egay oil Cooler
    Ohlins F&R / Hindle exhaust w DB killer / Galfer brake line w EBC HH Pads
    Pro Taper grips, G2 throttle tube / Gromfatherz axle spacers
    Kepspeed alum. swingarm / Bar end mirror, RAM mount, USB Port
    Seat Concepts / Opmid V2


  6. #5
    Member
    This user has no status.

    Member #
    30360
    Join Date
    Nov 2018
    Posts
    40
    Iíve got the oil cooler that came with the kit. Iíve ordered a take cam tensioner. Itís a 2 valve head intake ported for the koso 34. So far no oil puking.. but before itís finished I will probably make something custom to catch any oil. Thanks for the heads up on 5 speed, Iíve got sprockets for days, will be experimenting with them. A good seat is a good idea. Thanks so far

  7. #6
    Member
    This user has no status.
    altek's Avatar
    Member #
    29108
    Join Date
    Jun 2018
    Location
    Rochester NY
    Odometer
    2.5k
    Posts
    45
    I'd recommend Gromfatherz HD studs if you're interested in as bullet proof of a motor as possible.

    Sent from my SM-G955U using Tapatalk

  8. #7
    Senior Member
    is wishing I could keep all the
    bikes I've owned.
    solidjohnny's Avatar
    Member #
    22833
    Join Date
    Aug 2017
    Location
    Honolulu, Hi
    Posts
    634
    Best thing to keep you from blowing up your motor is a cylinder head temp gauge (not talking about oil temp) and keeping it under 375F. You can also add to your list, Grom Fatherz manual cam chain tensioner, and a magnetic oil drain plug. If you want the most out of that TB cam, you should also get dual valve springs and maybe titanium retainers so you can rev past 10K.
    Last edited by solidjohnny; 05-07-2019 at 09:18 PM.
    Quote Originally Posted by Paultergeist View Post
    It seems like there is always one more thing to buy, THEN Iíll really notice a difference in performance.

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Similar Threads

  1. Finbro 186 4v 280 shipped
    By rkfinch23 in forum Grom For Sale / Wanted
    Replies: 1
    Last Post: 05-09-2017, 07:42 AM
  2. Rebuild Koso 170, Finbro 186, or stock/sell?
    By turpinator in forum Grom Performance
    Replies: 28
    Last Post: 07-16-2016, 01:47 PM
  3. Finbro 186 4v say what?
    By Fungromen in forum Grom Talk
    Replies: 23
    Last Post: 04-10-2016, 10:43 PM
  4. Help!!!!!!! Super bore crankcase set (186 until 217cc)
    By paloma in forum Grom How-To's and Guides
    Replies: 7
    Last Post: 04-17-2014, 03:28 PM