My ECU tuning philosophy can be found
on this page: ECU
My 950 V-Star ECU programming (Re-Flash) includes
Includes fueling changes - No fuel tuner needed !! - Just plug in and
Disable fuel cut - ie; Jerky
know what "fuel cut" is?-CLICK
a) Gets rid of poor throttle transitions from
b) Gets rid of annoying popping and banging during decel and also when
re-applying the throttle from closed.
c) Throttle modulation is noticably improved over what can be achieved
with a fuel tuner alone.
d) Throttle feels much smoother when re-applying from closed position.
3) Complete re-curve of ignition timing
a) Gets rid of part throttle timing retarder for more response and less
vibration when cruising and moderate acceleration.
b) Gets rid of high rpm timing retarder allowing the engine to make
maximum power for longer.
c) Set timing for maximium power and driveability across the entire
rpm range & all throttle positions d)
Adjust timing to be the same for all gears.
4) Raise rev-limit in all gears to 7000 rpm.
5) Anything that compromises performance and/or driveability is eliminated.
6) Reduced running temperatures.
7) Reduced heavy engine braking on decel.
(More relaxed gear changes and throttle modulation
at all speeds) 8) Free upgrades
when/if we make improvements.
9) Return your ecu back to stock at no charge for any reason.
(shipping not included)
10) Answers to all your questions.....
All testing was done in house on the above V Star 950.
We can reprogram for the following markets: USA & Canada for now
Performance ECU flash is for CLOSED COURSE COMPETITION USE ONLY !! ECU
reprogramming may not comply with federal safety/emission laws !!
ECU reprogramming may not comply with your warranty !!
See dyno charts below
Just like the Yamaha Bolt, this bike is very restricted in "as
This chart shows the ECU's power restrictions removed.
Adding a slip-on exhaust alone gives some gains, but as can be seen
here is still very restricted.
Just adding Ivan's ECU programming really compliments the exhaust changes
Slip-on & stock ecu VS. Slip-on & Ivan's ecu
Now the gains are looking a lot more impressive !!
All stock VS. slip-on & Ivan's ECU programming
The airbox is very restrictive on the on the 950
V Star (appx 9hp)
If you want all the power, an air filter kit is a requirement.
Having an intake and exhaust without Ivan's ECU tuning
is leaving a lot of driveability and performance on the table