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Post by Cruizin on Feb 19, 2017 22:59:34 GMT -7
The 160hp rating from the factory is at the crank not the tire vs. the 138ish as noted above is measured at the tire. This forum found the test bike for flashtunesecu to create the very first and then ver2 of the base tunes fthat every tuner is now buying from them. and also for our favorite tuner and the test results were surprising but yes, from 132 to 135 stock with the north american detune, on a well calibrated dyno. Then all the way up to 160hp post tune depending on which exhaust used. Read 2wheeldynoworks threads in his section. |
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Post by clayton on Feb 20, 2017 20:45:34 GMT -7
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Post by slv on Mar 3, 2017 13:45:08 GMT -7
I finally found a mic that works with my Tomtom Bandit camera. Not bad at all for the first test. I'll experiment with some mic location adjustments, but this works for now.
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Post by clayton on Mar 3, 2017 14:45:22 GMT -7
I finally found a mic that works with my Tomtom Bandit camera. Not bad at all for the first test. I'll experiment with some mic location adjustments, but this works for now.
Is the removable core still in or did u take it out? |
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warnock
Full Member
Posts: 132
Likes: 55
Registered: Aug 23, 2016 14:01:04 GMT -7
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Post by warnock on Mar 3, 2017 17:04:04 GMT -7
The removable core doesn't come in the exhaust it's like an extra piece in the box.
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harrybalzak
Junior Member
Posts: 67
Likes: 62
Registered: Mar 2, 2017 11:17:12 GMT -7
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Post by harrybalzak on Mar 3, 2017 18:14:03 GMT -7
I hear more intake and valve chatter than I do exhaust note. It sounds about stock to me.
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Post by slv on Mar 4, 2017 11:37:38 GMT -7
clayton. The sound insert is installed. It does come loose in the box, but I installed it to keep the noise in the reasonable range.
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Post by slv on Mar 4, 2017 19:32:53 GMT -7
I hear more intake and valve chatter than I do exhaust note. It sounds about stock to me. This was my first trial. It took a while to get a mic that worked with the camera. Now I need to experiment with placement. |
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stealthunion
Junior Member
Posts: 61 
Likes: 33
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Post by stealthunion on May 8, 2017 9:19:12 GMT -7
Dove tailing my question into this thread since it seems relevant. I got the Yoshi 3/4 Alpha T installed along with Graves Block Off plates. Nels installed this for me, flashed the ECU and ran the bike on the dyno. Took it out for a ride yesterday and the bike is popping when I deccel esp. coming down to 4th or 3rd from higher speed. I will ping Nels tomorrow since they are closed on Monday's. Anyone on the from the forum knows what the problem could be? Appreciate any advice.
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guywithfz10
Full Member
Posts: 218
Likes: 160
Registered: Sept 1, 2016 17:49:46 GMT -7
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Post by guywithfz10 on May 8, 2017 11:25:22 GMT -7
Dove tailing my question into this thread since it seems relevant. I got the Yoshi 3/4 Alpha T installed along with Graves Block Off plates. Nels installed this for me, flashed the ECU and ran the bike on the dyno. Took it out for a ride yesterday and the bike is popping when I deccel esp. coming down to 4th or 3rd from higher speed. I will ping Nels tomorrow since they are closed on Monday's. Anyone on the from the forum knows what the problem could be? Appreciate any advice. Nels installed the block off plates too? Or just the Yoshi pipe? I have the Austin Racing 3/4 exhaust and Graves block off plates with Nels' tune and I have no popping on decel in any gear. |
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stealthunion
Junior Member
Posts: 61
Likes: 33
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Post by stealthunion on May 8, 2017 11:53:33 GMT -7
Dove tailing my question into this thread since it seems relevant. I got the Yoshi 3/4 Alpha T installed along with Graves Block Off plates. Nels installed this for me, flashed the ECU and ran the bike on the dyno. Took it out for a ride yesterday and the bike is popping when I deccel esp. coming down to 4th or 3rd from higher speed. I will ping Nels tomorrow since they are closed on Monday's. Anyone on the from the forum knows what the problem could be? Appreciate any advice. Nels installed the block off plates too? Or just the Yoshi pipe? I have the Austin Racing 3/4 exhaust and Graves block off plates with Nels' tune and I have no popping on decel in any gear. |
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stealthunion
Junior Member
Posts: 61
Likes: 33
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Post by stealthunion on May 8, 2017 11:55:58 GMT -7
Yes, Nels installed the block off plates for me. Spent $250 extra just for that.
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Post by slv on May 18, 2017 17:27:51 GMT -7
It sounds like the block off plates are leaking, or you have an exhaust leak at the header to decat.
It's either a tune issue or you have cold air entering the exhaust stream. Mine does not pop at all. (It did get louder after a break in.)
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mikem73
Junior Member
Posts: 53
Likes: 20
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Post by mikem73 on May 23, 2017 21:51:12 GMT -7
may want to check the bottom of your air box and make sure the rubber boot is still on that is attached on there as well that comes with the block off plates it could have worked its way loose.
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mateo
New Member
Posts: 24
Likes: 9
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Post by mateo on Jul 14, 2017 13:01:14 GMT -7
Here's a YouTube video of my Yoshi. I've put about 200 miles on it since yesterday's install and the performance seems good. No pops and I'm running the same MPG. Unfortunately the video was made using my IPhone so the sound isn't nearly as good as the ones posted earlier in the thread.
I chose to install it without the DB killer. That was a mistake. It was way too loud. Obnoxiously loud. I added the DB killer this morning and while it doesn't lower the volume by much, it lowers the tone while making it a bit more barky on revs.
Just a quick explanation or clarification re my earlier comments. I totally agree that a flash tune can enhance the performance and characteristics of this or any other bike, with or without an after market exhaust. I was just saying that a flash tune or fuel management system isn't required for this particular system, as it is on some like the Graves. I can attest to the fact that this system most definitely works great without the tune or FM system.
I'm learning a lot from this site, from people who know more than me. I reserve the right to be wrong.
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Post by slv on Jul 14, 2017 20:52:31 GMT -7
It sounds like you're happy with the pipe. I have no regrets with the Yoshimura. You're right about the sound. With no DBT killer, it's like a rivet gun in a metal box. With it, it's loud but in a sexy way.
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mateo
New Member
Posts: 24
Likes: 9
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Post by mateo on Jul 16, 2017 17:22:50 GMT -7
It sounds like you're happy with the pipe. I have no regrets with the Yoshimura. You're right about the sound. With no DBT killer, it's like a rivet gun in a metal box. With it, it's loud but in a sexy way. Thanks! Although my father-in-law seems pretty sure it's running lean with the new system, my brother thinks it's running rich. Can't make this stuff up. My bike hasn’t shown any improvement or decline in fuel efficiency. The performance and specifically throttle response at all RPM ranges hasn’t been a problem. And, the running temperatures shown on the dash at various stages of my work commute haven’t gone up. They’ve gone down. I’m running cooler, not hotter. Aren’t these symptoms of running rich, not lean? Alas.... |
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Post by clayton on Jul 17, 2017 8:29:08 GMT -7
Running lean= hotter motor
Running rich= cooler motor
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mateo
New Member
Posts: 24
Likes: 9
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Post by mateo on Jul 17, 2017 11:19:27 GMT -7
Running lean= hotter motor Running rich= cooler motor I do wonder, however, whether the temperature gauge reading is an accurate measurement of the combustion temperature, which is the more relevant consideration in the lean vs. rich determination. If the liquid cooling system is doing its job, the temp gauge reading will reflect an average engine temp as the coolant circulates around it. I guess I could replace the plugs and pull them after a week to see if they're sooty black (rich) or ashy white (lean). Cheaper than bringing it in.... |
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Post by slv on Jul 18, 2017 17:21:01 GMT -7
A couple things for consideration.
The temp reading is coolant temperature, not combustion temperature. Combustion temperatures are much higher.
Also, a decat engine will naturally run cooler without the heat from the cat (both underneath and traveling back upstream.)
Logic would say that your bike is running slightly leaner if the exhaust path has less restriction. It may only be slight, and your ECU might be correcting it if you still have O2 sensors.
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