Supporting Vendor 2 Wheel DynoWorks Posted October 29, 2020 Supporting Vendor Share Posted October 29, 2020 Once again, I meant to post this quite awhile ago! We've been swamped at the shop all season, and I think we're finally about to have some more free time as the winter rolls in. That should allow me a lot more time to share, and explain more in-depth, the results we've seen on the dyno for these bikes with our custom ECU flash and mapping! So what are you looking at here? Well, let's dive in! Run 1 is BONE STOCK. Stock mapping, stock intake WITH the snorkel, stock headers, and the stock muffler with the spark arrestor out to allow for us to get an accurate AFR signal with our sniffer down the pipe. 64.4hp/44.5tq PEAK output at the wheel. Run 35, almost all of the bike is STILL STOCK. The only things we did here were the removal of the snorkel, because no matter what it truly needs to go. I know a lot of guys are worried about water intrusion, and it honestly is NOT as big of a deal as people are making it out to be. We, and our customers, have performed this modification on THOUSANDS (no exaggeration) of FZ/MT-07, XSR700 and Tenere 700 models without a single issue, ever. For those of you worried about water crossings, the stock snorkel only adds about 2 inches of extra height to the intake inlet, so if you're going to be submerging the bike THAT deeply across a body of water on a trail, we HIGHLY recommend removing the stock intake lid and filter and replacing it with a foam filter that allows for a water sock. There is ZERO difference in performance between the snorkel delete and stock intake and all of the foam filter/intake lid designs that we've seen on the dyno. All that matter is that 90 degree bend and rubber protruding into the airbox is no longer there. 65.9hp/46.6tq PEAK output at the wheel with BIG 4hp/4tq increases at the bottom end AND 4hp/2tq at the very top end. Obviously, as with all of our ECU flashing, the throttle response becomes MASSIVELY smoother and stronger throughout the entire RPM/throttle range, but this isn't possible to display on a WOT dyno graph. Run 9, add virtually any muffler to the stock headers with a snorkel delete and you'll only see very modest gains. With our custom mapping, you'll see about a 1hp/0.5tq improvement throughout the entire RPM range and a 1.5hp increase at the VERY top end. The muffler on these bikes truly isn't a big restriction, which we were surprised to see with all of the chambers and baffling in the stock muffler. We have tested quite a few aftermarket mufflers now, and they all truly perform more or less identically to each other. There's some changes to the necessary fuel mapping for each one, but the final output is essentially unchanged. 67.1hp/47.0 PEAK output at the wheel. Run 13, add headers to any quality high muffler with a snorkel delete and our custom mapping! BELOW 9k RPMs, there's very small gains (less than 1hp), but ABOVE 9K RPMs the power curve is maintained MUCH better to the limiter. You also save 12-14lbs, depending on which aftermarket headers you're using. We've tested a few of them, and once again there is virtually no difference in output between the aftermarket headers. 67.7hp/47.1 PEAK output at the wheel with an extra 4hp ABOVE 9k RPMs all the way to the limiter when compared to the stock headers. From bone stock to a full exhaust system, snorkel delete and our custom mapping, there is a massive 10whp improvement at the limiter (10,250 RPMs). Again, all of this is ONLY showing WOT performance at the wheel. Much of the results that your butt dyno will feel are even more significant than this displays, as the fuel and ignition mapping changes at WOT are actually much less dramatic than the low/mid range and part-throttle changes that we make to all of our custom mapping! Check out 2wheeldynoworks.com and don't hesitate to reach out to us if you guys have any questions. We're always happy to help! -2WDW 6 2 Link to comment Share on other sites More sharing options...
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