Join Date: Jul 2018
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New 2019 grizzly build. insight on tuning tips ect. inside
So I have about 50 miles on the new wheeler and have already done about all the mods I am going to be doing to the bike. I figured I would keep y'all up to date on what i have learned and done to give y'all some ideas.
So as soon as I got it, it got a highlifter snorkel, SS 212 wheels and 29.5 og outlaws pretty much that same weekend.
The next week I got all the clutch stuff done. Went with 1.5 shims, epi white spring, epi wet clutch springs with slugs.
Next I got with Eric at EHS and ordered the umi air filter clamp on kit and his tuner.
This is where it got tricky. He hasn't done any 19's yet so both the air filter mod and tuner was for a 16-18.
When I was installing the air filter kit, I noticed that the 19 already basically has what his kit did from the factory. (Getting rid of the snorkel intake running down the length of some of the inside of filter.) Although the filter doesn't clamp on from the factory. The intake is flush with the inlet of the filter. You could make the clamp on adapter still work but you wouldn't want to cut any of the intake tube like the instructions say as it's already the correct length.
Next up was the exhaust. I didn't want it loud so I wanted to utilize the factory muffler. What I did was first cut the spark arrestor off flush with the cap. It remained about the same loudness and tone but just definitely let more air pressure out the exhaust.
I wanted a little tone so I I holesawed the welds where the small tip sticks out the cap. I went down to the AutoZone and found a tip for a lil ricer car that had a nice smooth turndown that was the same diameter. I cut a straight section of it off and welded it to the end cap. Painted the end cap flat black and Installed the cap back on the muffler.
I knew I was going to be installing a wideband so while I had the exhaust off I welded a bung for the wideband. I put it all on and fired it up! I was shocked how well it sounded! Perfect tone. Not stupid loud but definitely had a growl to it and noticeable!
Next up was installing the wideband, stereo head unit, amps, building the speaker tubes, tuner ect.
I had removed the center drybox when I installed the highlifter snorkel so I already knew where I was going to mount the wideband, tuner, and head unit.
I used a boss marine head unit and holsawed the lid for 3". Next I cut a 2-1/8" hole for the wideband. Mounted it all and started wiring.
There's a ton of room under there with the drybox gone. Wired everything up and ran RCA's to the front of the wheeler. Along with the switched power wires for the amps inside the 6" pvc y's. It's 4 x infinity 6.5" marine speakers and 2 100x2 watt board amps. One in each tube. Got all the stereo crap done and cranked it up! All I can say is wow! The clarity and loudness of this system will piss off your whole neighborhood! Lol
Next was tuning.
I installed the tuner and used one peice of Velcro under the lid so I can store it under there when I'm not tuning on it and one right in between the seat and lid for mounting it while tuning. I also blocked off the AIS on the airbox while I was under there.
Right off the battery I realized that the 19's are nowhere as lean as the 18's from the factory.
Im at sea level here in Texas and With the tune for the 2018 on it I noticed it idled around 11.5 AFR and slight tip in was around 13 AFR. With the stock tune from the factory she idled about 13ish and slight throttle was tip in was around 14.
So I hooked the tuner back up and started tuning.. I ended up turning the green idle setting all the way down as far as it would go to get back to the 13 AFR at idle but then the light throttle tip in was in the 15's AFR. I messed with the blue green settings and bumped them up to about 5 to get the fuel to come in sooner to get the light throttle back into the 13's. It's about 13.8 which I can live with. Next was getting the yellow acceleration correct. The 18' tune was pretty damn close and the AFR was around the high 12's which is about perfect but I noticed there was a delay on on how long it took for it to add the extra fuel. So I bumped the blue yellow setting (I believe) up a few notches to about 4 or 5 to get it to bring the fuel in faster. It shoots for mid 13's to mid 12's almost immediately. The throttle response is just insane off idle and the bike in low gear will literally just stand straight up if you crack the throttle fast from a stop even with the 29.5 outlaws.
I haven't had a chance to get the full throttle setting (red) tested yet because the weather has been shitty and the holidays and such but I'll report back as soon with what actual #'s for the settings I come up with for all the different throttle positions after I get a chance to open it up. Eric is also working on getting a 19' in the shop for testing so he will be releasing the tuners for the 19's pre programmed in the near future. I tune cars for a living here in Houston so I didn't mind recalibrating a 18' tune for my bike. And I run widebands on all my bikes, cars, and atv's so it wasn't a big deal.