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Tourer
Posts: 432
Gettysburg, 2008 Tour Premium | Installed the IAV this weekend along with another aux air intake. Already had th fuel controller. I sold my previous intake plate because of popping and aggrevated throttle response. After talking to Lloyd late last year and redoing the settings on the controller I was ready for the IAV.
All I can say is the bike is perfect. The loud hissy air leak sound and lean gurgle from part throttle acceleration is gone. What I have is a bike that be ridden down to 1500-1800 rpm with trailing throtttle and NO bucking whatsoever. Gone is the cconstant search for the right gear on these PA backroads and once on the highway I cane put it into 6'th and unless I want big acceleration I do not need to drop a gear. The bike pulls like a banshee at half throttle and I am wathing the AVG MPG go up. The wife and I rode down to MD and DC on Sunday to visit friends and see the Cherry Blossoms and is was great to have smooth tip in in the stop and go traffic getting back out of the city.
Yhe IAV is the icing on the cake.
Walt |
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Cruiser
Posts: 70
Central Victoria, Australia | Soounds impressive, i had a loyds plate and fuel controller fitted and i am little dissapointed with the low speed response and even had a few low throttle opening , flame outs!!
any negatives?
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Visionary
Posts: 3773
Pittsburgh, PA | im not as lucky as you.. i have the IAV and i found i have to adjust it each morning. or the bike either doesnt want to start or idles to low. but the more air I allow it the more exhaust "noise " i get. its way cut down. but one thing never changed, and that is the 2nd gear backfire (fart) through the intake. you can hear it through the lloydz intake plate. it will pause for a second and act like it wants to stall (but doesnt) then it will surge and make a popping/ backfire noise through the intake.. it doent happen all the time.. and i noticed it 2 times wheni tried to give it a quick turn the throttle and go into 2nd gear. doesnt do it in any other gear but 2nd.
I think the device controls and calms down the popping, but doesnt completely stop it. (which is ok by me) i am wondering why i get that farting in the intake every now and then.. (no sound through the pipes, Only under the dash where the intake plate is) |
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Tourer
Posts: 432
Gettysburg, 2008 Tour Premium | Phil, I have none of the problems now that Chris has above. First off the adjustment that is done cold should not need to be corrected as the bike warms. Do you have a fuel controller? What are the settings starting with the green? Do you have the stock or 1 or 2 download. If you have the Lloyds fuel controller and the green is set too high you will have to open the screw to add air to compensate and can lead to the same backfiring. If You have like I did the fuel controller and the stage 2 download the first two setting will be lower and the 6'th setting which controlls the point when the bike pivots to fuel throttle fuel will be 1 1/2 lights vs. 4 1/2. That is a big difference and made a huge difference. If you have leaks at the exhaust gaskets I guess that could cause problems also but I believe I am ok there. As far as exhaust noise I am unsure how this relates to tune what pipes are you running? |
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Visionary
Posts: 8144
New Bohemia, VA | exhaust lwak at the header if it consistently poppin' is my guess... |
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Visionary
Posts: 3773
Pittsburgh, PA | yeah mine only surged and backfired through the intake every once in a while. i might be a little too aggressive on the throttle? (maybe)? doesnt do it all the time. but i do notice when it does it.. its going from 1st to 2nd ONLY... it almost wants to stall but doesnt.. then all is well.. I do have a fuel controller.. Power commander 5, with the fuel map for stage 1 level 1 with Intake plate. (thats my setup). it runs great in all gears, just every once in a while like i said..... |
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Iron Butt
Posts: 1117
Northeast Ohio | This whole IAC thing drives me nuts. VICTORY - Fix it please! My Kingpin NEVER did this (I know it didn't have an IAC). If you think about it, it is really unfortunate that we have to pay money for a valve to curtail this behavior. Before all you "shouldn't have modified your bike" people chime in, riders that are running straight S1L1 setups have the issue too. Mine coughs every once in a while too. I want less pops, which I have (shouldn't have any) and want my cold idle back (don't really have this today with the IAV or disconnected IAC setup). Victory recommended to my dealer to disconnect the IAC. So they know there is a problem.
We really only have 2 options:
1. Victory fixes it.
2. Hope that someone makes a factory ECU tuner (not a piggyback offering like the VFC or Power Commander). I doubt this will happen as there probably isn't enough market share to justify the R&D behind it. |
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Tourer
Posts: 523
seattle, wa | Scorebo, You aren't alone. I'm very happy with my Vision in all aspects except the damn popping. It's embarrassing! There has to be an answer. Can we use parts from 09-10 to fix our 08s? I don't want to spend another $75.00 on something that doesn't work. I don't see how it can work for one guy but not the next. Might help if everyone posts up the setting on their VFC?
Ferchrisakes Victory, just fix the fuckin problem and we will tell everyone how great Victory is. Sound like a fair trade? |
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Visionary
Posts: 3773
Pittsburgh, PA | i doubt victory will create anythingt o bypass an emission controlling device. im in the same boat as you brother.. i think my issues are mild compared to others that i have read. right now since i have the lloydz device and a Power Commander 5 i dont really get the popping i did before.. but what i have been getting every day at least once or twice is that damn (back firing-farting) in the intake.. i can hear it through the lloydz intake plate, and when it does this it surges Really bad to the point where it almost stalls.. Then all the sudden everything is good and off we go... i plugged my laptop into my Pc5 today to make sure the proper map was installed. I have the map for the stage1 level1 with ness top intake plate.. i do however have a s1l1 map installed on the vision. from what i heard from power commander and lloyd, this s1l1 is barely anything over stock.. and even if so, that wouldnt make me More lean. if anything more Rich..
if i bypass the IAC by unplugging the harness i get a check engine light. if i use the IAV to basically turn off the IAC;s air flow the bike is almost impossible to start cold. so with the IAV i meet it half way.. the tiny little pops i do get are mild now with the IAV,. but that damn surging/farting through the intake is another story.. wish i knew what caused it.. btw it did this BEFORE the IAV and before the PC5... |
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Iron Butt
Posts: 1117
Northeast Ohio | I don't want them to bypass the IAC, I want them to control the IAC better thru the factory ecu. Come on Vic, this isn't too much to ask...
Arkainzeye, I think my dealer pulled the main vacuum line from the IAC and plugged it, not the harness. |
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Tourer
Posts: 432
Gettysburg, 2008 Tour Premium | All I can say is my bike is runs better than any fuel injected bike I have owned. It was pretty good before the IAV and perfect after. Disregarding any leaks from exhaust gaskets getting the bike right is a matter of proper adjustment of your tuning devices. It seems these bike will operate pretty well with adjustments far less than ideal. That is the dilemma we face and although dyno tuning can help getting a bike to run well at part throttle and trailing throttle takes the 'right' settings. I have ZERO pops or lags in throttle response and my fuel milage is going up. |
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Iron Butt
Posts: 623
| My IAV is awesome. took me 3 times of adjusting but its dialed in now. popping is almost gone, much improved. |
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Lloyd's Idle Air Valve
