Bazzaz is offering a FI tuner for the 6th gen now. I looked at the specs and I am confused. I thought the problem with the low end surging with the 6th gen was based on it being too lean. But, if you look at the attached doc it looks like they leaned it out even further. Can someone explain this?
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Honda_VFR800_02-10.pdf 1.02MB
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Gonna follow this thread, hopefully someone can explain this. Is there a projected price on this?
I emailed them and got this response.
The HP is SAE. A lot of dynamometers read ‘Dynojet numbers’ which are inflated because of calculations they add in at the end of the process. Non-Dynojet dynamometers read SAE, which appear lower, but many machines will often have an option to inflate the numbers to the DJ ones so they don’t look low in comparison. We, of course, do not subscribe to that. These runs were done on our Superflow dyno; nowadays we do everything on the new Bazzaz Principia dynamometer! –had to get that in there.
The 13.0 target AFR ratio was found to give the best performance. The AFR graph represents ratio at
full throttle. However, there is fuel added in certain ranges in the lower throttle positions to get to that AFR. You can view this map in its entirety by downloading the Bazzaz software and map (free) from our website and working in the offline mode.
I hope this answers your questions. Let me know if you have any others. Thanks!
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I looked at the website and their dyno charts. There are little to no performance gains to be had except for a slight increase in torque on the 6th gen VFR. If your primary goal is to smooth out the throttle response at low rpm, consider a modified throttle tube like a G2 throttle tamer. It uses a cam shape to achieve smoother throttle transition. Others can be to increase throttle response for a given amount of throttle rotation. If performance gains are what you want, IMHO you would get much more bang for the buck to put on an aftermarket slip on or full system to save significant weight and gain 2-4 hp.
Now, for my ST1300 I am very interested in the HP and T gains to be had by the Bazzaz Z1!