my dyno said I had 4 million hp.

 

Thats pretty close to what I got with a JArdine midpipe, a PC and a tune. What brand of dyno was he using? I believe that brands differ somewhat, and also lots of day-to-day variability, operator difference, lots of other factors. Compared to a bike like a Bandit 1200, adding power to a f4i is going to be very expensive and come in small increments. I was fine personally with the power of the stock F4i until I changed exhaust to get more ground clearance. Then I had dyno tuning to smooth out the curves. You wont get optimal results just by adding a PC and downloading a map. I doubt any F4i would make much over 100 hp without help from Erion and HRC on the same dyno you ran.

 

Depends what dyno it was done at, what settings were used on the dyno, etc. Like others stated weather effects dyno.

 

With mods a LOT..Better throttle respsonse over and above what a downloaded tune does.

Mine is smooth as butter and gets the same gas mileage now as it did when it was stock but making more power.

 

Sounds about right, I got 94. Depends on the person running the test and the equipement. I've seen the mobile dyno trailers tend to run a bit high and may not be accurate.

 

Holy ****! You too??? You and I must be running the same pipe!

Or smoking the same pipe!!

 

So exactly how much does it cost to get a "full tune" ? The one guy said 350, is that how much they all are about?

 

should be by the hour...but usually range from mid 200 and up.

you'll need a pc3 at the very least.

is it worth it? well...if you're planning to run hard on the track, race, etc. then yes. but if you're just going to ride hard for track days and weekend fun, commute, etc...the standard OTS maps will be fine.

 

here in okla 50 for a dyno and 250 for a dyno and tune

 

The purpose of HAVING a PC in the first place is to facilitate tuning. Honda installed a perfectly good map on the F4i, one with smooth, manageable power, with some concessions to lowering emissions at below 6000 RPM. A PC wont make the bike more powerful without intake/exhaust mods. After the mods, a tune will identify peaks and troughs in the power curves and fix them: downloading someone else's map assumes his bike acts the same as yours, and you like the same power curves.

In actuality, duplicating somebody else's setup, and using their map will likely give you sawtoothed HP/torque curves, with uncomfortable flat spots, jerky throttle response and maybe reduced mileage. You can "tune" a PC with a laptop and no dyno, but the Accelerometer in your butt isnt sensitive enough to do it right.

Has anyone downloaded a map to match their mods, and then had a tuner tell them that map was spot-on?