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Ignition/Tuner/ECM/Fuel InjectionNeed advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.
So today I went to a reputable Dyno Tuner who going into the day claimed to have knowledge about the Power Vision but turned out to be the total opposite. I am hoping that those more knowledgable on the forums can help.
Long and short of my 4 hour ordeal was that the tech had no knowledge about the PV at all. When I finally pulled the plug on him I found that he was basically taking the PV map Jamie sent with my newly purchased PV and hitting the AutoTune on each Dyno run. I am attaching the dyno sheet and you'll see that the curves are far from ideal. I am hoping that someone can help me tame this beast of a motor but first let me give a little background.
I purchased the motor from someone that had the motor built and the motor dynoed by a shop in Dallas. The motor ran a 121HP/132TQ and the only difference between my build and his was he was running a 2-1 exhaust vs myself who is running a 2-1-2 setup. The motor components are in my sig below.
Anyone out the shed some light or help point me in a better direction?
Last edited by NascarGuy; Mar 26, 2016 at 07:59 PM.
Hope you didn't pay for that "dyno tune" ...cause he didn't "tune" anything...that may be what the first pass would look like ...but then he should be making AFR changes at the first dip along w/ some ignition changes also to keep it pulling ...and not flatten out ..
but most "tuners" only adjust the AFR's and never adjust the ignition ...seen it many times ...then tell you something like "it's the pipe "...or the head flow not right ...too much air trapped in the heads ...some lame excuse for not wanting to take the time to do it right ...or they just don't know how ...!!!
you should at least only have paid haft the price !!!
as far as the chart shows....you are rich where the first dip shows up ...then as it start to pull again ...it goes lean and flattens out again ....then starts to pull again ...but starts getting to rich at the end ...remember ...this is only at WOT. may be better or worst at smaller part throttle openings !!
another bike would pull out on you three or four bike lengths ...and you would have to wait for the power to come on ...and hope you can catch them on the big end ...
Find another "tuner" !!!!
just may 2 cents ....
Last edited by springers4ever; Mar 26, 2016 at 10:08 PM.
Is there a software for the PV similar to the PCV where you can modify table data on the fly rather than having to save and reload maps after each change?
PV was purchased from Jamie at FuelMoto. I've been working with him and decided to add a Target Tune rather than donate any money to the original terrible Dynojet tech. He provided a TT base map from one of his 117 builds then tweaked it a touch. We're counting on the target tune to finish polishing the map. It's really frustrating the Dynojet has this show listed on their site as a certified center but in researching their certificate was from 2008. It seems they haven't been keeping current on all the Dynojet products thru the years.
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Little help: Bad Dyno Experience
You didn't pay for that ...right ???
