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This is a discussion on tooter's grom within the Grom Builds forums, part of the Honda Grom Forums category; Are those the ones the machinist made for you or a TOCE brand variant? They look good....

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Thread: tooter's grom

  1. #201
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    is dialing in the bike for my
    wife !
     

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    Are those the ones the machinist made for you or a TOCE brand variant? They look good.
    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

  2. #202
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    Quote Originally Posted by CDN Grom View Post
    Are those the ones the machinist made for you or a TOCE brand variant? They look good.
    They weren't made for me personally. I'm just a customer. Dave Plummer on Facebook came up with the design. He makes and sells them. I modded them by rounding off the edges for smooth exhaust flow with hand file and emory cloth, and then stainless steel bead blasted them for a nicely uniform finish. I'm actually amazed at how well they work. I keep detailed gas mileage records and have not lost even one mpg with the inserts, even though the exhaust is way quieter. All other bd killers hurt performance... these don't.
    Last edited by tooter; 09-06-2019 at 12:00 PM.
    CDN Grom likes this.
    2018 GROM: Modified for reliability longevity gas mileage... and fun.

  3. #203
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    Put the IXIL exhaust back on just for a change.

    tooter's grom-gopr0172.jpg

    I like the cafe racer seat cowl. It makes the bike look clean and compact.
    2018 GROM: Modified for reliability longevity gas mileage... and fun.

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  5. #204
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    I'm experimenting with designing these quiet inserts for the TOCE. They're crude prototypes just to test the concept. I haven't ridden it yet so I don't know hoe well they'll work.They'll be run long enough for the ECU to learn and then I'll log some gas mileage results as an empirical indicator of their efficiency.
    tooter's grom-img_1268.jpg

    tooter's grom-img_1273.jpg

    tooter's grom-img_1271.jpg

    tooter's grom-img_1279.jpg


    Because the TOCE muffler section is sized to flow exhaust for an engine almost 5 times larger, installing a silencer doesn't come close to restricting the tiny Grom engine.

    tooter's grom-img_1039.jpg

    I'll also be using the inserts in conjunction with these.


    Attachment 83306

    Attachment 83308

    Attachment 83304

    Attachment 83302

    I've always been interested in intake and exhaust flow designs so this experiment is lots of fun.
    Last edited by tooter; 10-11-2019 at 01:29 PM.
    2018 GROM: Modified for reliability longevity gas mileage... and fun.

  6. #205
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    Completed the gas mileage test for running both quiet inserts together...



    tooter's grom-jiyrub8.jpg

    tooter's grom-zypcshr.jpg

    148.5 mpg which is within one mpg of running the TOCE with no inserts. There's a fine line between quieting an exhaust and restricting the engine. It took some experimenting but it worked out fine.

    I'm processing a video of riding with both inserts and will post it soon. The exhaust sounds really mellow.
    CDN Grom likes this.
    2018 GROM: Modified for reliability longevity gas mileage... and fun.

  7. #206
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    Hi tooter, nice thorough thread. I admire your dedication to logging and sharing your life with your GROM.

    I'm just wondering why you're giving the MPG so much attention? You noted you enjoy finding ways to be frugal in your everyday life (keeping/using an old fridge etc.), so I understand your interest from the money-saving point of view, but then you're spending money on the GROM like it's going out of fashion!

    I'm not flaming by the way, I'm genuinely interested.
    tooter likes this.

  8. #207
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    is dialing in the bike for my
    wife !
     

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    I expect he may be like myself... I work hard to save money in places where I can, so that I have money to spend elsewhere.
    dubSolo and tooter like this.
    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

  9. #208
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    Quote Originally Posted by zphinx View Post
    Hi tooter, nice thorough thread. I admire your dedication to logging and sharing your life with your GROM.

    I'm just wondering why you're giving the MPG so much attention? You noted you enjoy finding ways to be frugal in your everyday life (keeping/using an old fridge etc.), so I understand your interest from the money-saving point of view, but then you're spending money on the GROM like it's going out of fashion!

    I'm not flaming by the way, I'm genuinely interested.

    I've always lived frugally because I never made a lot of money. By being frugal I saved up enough money to build a house with no mortgage. I have no debts. My credit card balance is always zero. And even though today my net worth is seven figures and I can buy whatever I want I still live really cheap.
    2018 GROM: Modified for reliability longevity gas mileage... and fun.

  10. #209
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    Here's a sound video of the TOCE exhaust with all four quiet inserts installed. Deep and mellow.




    https://www.youtube.com/watch?v=4GRFSyUjxjs
    Paultergeist likes this.
    2018 GROM: Modified for reliability longevity gas mileage... and fun.

  11. #210
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    Do you prefer the Toce exhaust over the IXIL?

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