CJR Dynojet 250i Information Thread V2 - Grom / Monkey / Super Cub (Lots of Graphs)
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CJR Dynojet 250i Information Thread V2 - Grom / Monkey / Super Cub (Lots of Graphs)

This is a discussion on CJR Dynojet 250i Information Thread V2 - Grom / Monkey / Super Cub (Lots of Graphs) within the Grom Performance forums, part of the Honda Grom Garage category; Hey Guys, Dropping in to start a new thread with the upgraded dyno to split up the data. I have learned a LOT over the ...

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Thread: CJR Dynojet 250i Information Thread V2 - Grom / Monkey / Super Cub (Lots of Graphs)

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    CJR Dynojet 250i Information Thread V2 - Grom / Monkey / Super Cub (Lots of Graphs)

    Hey Guys,
    Dropping in to start a new thread with the upgraded dyno to split up the data. I have learned a LOT over the years and this new dyno is full awesome features to get the most out of the builds. I am going to do my best to keep this updated each Friday/every other Friday. I am working on about half dozen different platforms right now so I get pretty busy to hit the forums daily. Running multiple screens on the dyno has become easy for me to drag and drop information as it comes in. This past spring I turned my hobby into a full time job and have been enjoying every minute. We purchased a Dynojet 250i and opened up shop in a small warehouse to be run by my girlfriend and I. Every sale we make goes straight into further development so we appreciate all your support thus far! I wanted to fill you in on an upcoming project. We recently picked up a brand new 2019 Honda Grom AND Monkey to do testing with from the ground up. We have already knocked out initial testing with the Honda Monkey however I haven't dove into the new Grom just yet. I have been slowly gathering up every intake, exhaust, camshaft, fuel management system, injectors, throttle bodies, etc. to do a giant test. A ground up build running through every stage I can possibly come up with. Pretty much anything I can get my hands on so we can start mix/matching data. The combinations are endless which is where you all come in, if you have a request, leave a comment! I also plan to offer an option where a customer can send me his specs, I build our shop grom to match and we set it up with a custom tune on the ECU of your choice. If any of you guys have products you would like third party tested lets throw them into the mix as well.
    CJR Dynojet 250i Information Thread V2 - Grom / Monkey / Super Cub (Lots of Graphs)-cjr-grom.jpg
    I am at least another week or two out on diving into the project so I wanted to get a game plan going so we don't have to back track if possible. During the testing I will be using multiple fuel controllers, generally starting with the stock ECU and comparing ECU flashes to stand-alones and piggybacks. Common setup's I will create maps for and have a variety of free ones you can try on the website along with some setup guides to help you all out.
    Plan -
    Bone Stock Dyno to start
    Intake Mod vs Aftermarket Intakes -
    Aftermarket Exhaust combinations with different intakes -
    ECU Testing - Over half a dozen different fuel controllers
    Stock Head + Camshaft shootout, with both a Yoshimura and Hindle
    Kitaco Cover before/after
    Cylinder Head Comparison - Stock, Ported Stock, Ported Big Valve, CNC Ported Big Valve, 4v takegawa, 4v koso, CNC ported options on both with the big bore setups.
    Piston Comparison - OEM 125cc, Flat Top 125cc, DHM Dome 125cc, 131cc stock piston overbore, 143cc Takegawa, 147cc, 170cc, 186cc, and any others that pop up.

    We will also be working on some high output race spec builds on the other bikes as we get ready for the 2020 season!

    Little short on time with this post so I'll add more in when I can -
    Last edited by jonesn; 09-26-2019 at 07:23 PM.
    2015 Honda Grom (Stunt) and 2017 Honda Grom (Race)
    IG: Cameronjones239 for the most current updates.
    Dyno thread: https://www.hondagrom.net/forums/13-g...ts-graphs.html
    Build thread: https://www.hondagrom.net/forums/27-g...ace-build.html
    Dyno's and Video Logs coming soon so leave me a comment and subscribe! - https://www.youtube.com/channel/UCY0...Lxhacvn2wE2JoA

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    2015 Honda Grom (Stunt) and 2017 Honda Grom (Race)
    IG: Cameronjones239 for the most current updates.
    Dyno thread: https://www.hondagrom.net/forums/13-g...ts-graphs.html
    Build thread: https://www.hondagrom.net/forums/27-g...ace-build.html
    Dyno's and Video Logs coming soon so leave me a comment and subscribe! - https://www.youtube.com/channel/UCY0...Lxhacvn2wE2JoA

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    2015 Honda Grom (Stunt) and 2017 Honda Grom (Race)
    IG: Cameronjones239 for the most current updates.
    Dyno thread: https://www.hondagrom.net/forums/13-g...ts-graphs.html
    Build thread: https://www.hondagrom.net/forums/27-g...ace-build.html
    Dyno's and Video Logs coming soon so leave me a comment and subscribe! - https://www.youtube.com/channel/UCY0...Lxhacvn2wE2JoA

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    2015 Honda Grom (Stunt) and 2017 Honda Grom (Race)
    IG: Cameronjones239 for the most current updates.
    Dyno thread: https://www.hondagrom.net/forums/13-g...ts-graphs.html
    Build thread: https://www.hondagrom.net/forums/27-g...ace-build.html
    Dyno's and Video Logs coming soon so leave me a comment and subscribe! - https://www.youtube.com/channel/UCY0...Lxhacvn2wE2JoA

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    2015 Honda Grom (Stunt) and 2017 Honda Grom (Race)
    IG: Cameronjones239 for the most current updates.
    Dyno thread: https://www.hondagrom.net/forums/13-g...ts-graphs.html
    Build thread: https://www.hondagrom.net/forums/27-g...ace-build.html
    Dyno's and Video Logs coming soon so leave me a comment and subscribe! - https://www.youtube.com/channel/UCY0...Lxhacvn2wE2JoA

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    Looking forward to reading updates.
    2015 OG Grom in Yellow - AODRacing loop exhaust, ContiScoot tires, EBC HH front pads, RideItMoto levers, Renthal kevlar grips, Road low bars, CJR ECU, TB cam, MNNTHBX Mtake, Outerwears, Koso temp gauge, short shift linkage, TST sliders, Aliexpress tail tidy, Aliexpress axle sliders

    Pending - oil cooler, CoreMoto braided lines, high mount exhaust, rearsets and GP shift conversion

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    Goodies headed your way early next week!
    dhmotoring.com

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    Awesome plan, Cameron. I am looking forward to learning of your results.

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    is dialing in the bike for my
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    Looking forward to testing out new map in coming days

    2015 OG Grom in Yellow - AODRacing loop exhaust, ContiScoot tires, EBC HH front pads, RideItMoto levers, Renthal kevlar grips, Road low bars, CJR ECU, TB cam, MNNTHBX Mtake, Outerwears, Koso temp gauge, short shift linkage, TST sliders, Aliexpress tail tidy, Aliexpress axle sliders

    Pending - oil cooler, CoreMoto braided lines, high mount exhaust, rearsets and GP shift conversion

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    Question.

    Quote Originally Posted by jonesn View Post
    Common setup's I will create maps for and have a variety of free ones you can try on the website along with some setup guides to help you all out.
    Website details?

    here is my setup. Do you have anything close? ECU presently flashed with PV3

    Yoshi RS9 full exhaust
    DynoJet PCV
    DynoJet WBC2
    DynoJet POD 300
    DynoJet PV3
    Finbro Ported Head with oversized valves
    Finbro high compression 125cc piston
    Koso upgraded cam tensioner
    Koso high performance cam
    Koso 35mm throttle body
    Koso 35mm intake manifold
    Koso 35mm airbox snorkel
    Koso hi-flow air filter
    PCX-150 injector
    Kitaco Clutch Cover
    Takegawa SUPER Oil Pump
    Takegawa Crank Shaft Support Bearing Kit 4th bearing
    EBC - CSK Series Clutch Springs
    RP Billet Clutch Spring Plate
    Stock 15/34
    93 oct fuel only
    Last edited by ThomasRitz; 10-02-2019 at 08:19 PM.

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