eurban
Well-Known Member
So you think that an Ivanized ECU will get an additional 20-ish horsepower and 5-7 lb*ft torque? Anybody got a dynochart to prove this?
Gotta wonder where you guys spend your time on the Fz1 forums if you haven't read about / realized that Yamaha really really corked up the Gen II in its stock form???
Combine an exhaust with 2 cats and an overly short header (in order to package the 2 cats) with power limiting secondary throttle butterfly parameters, with deceleration fuel cut, with lower gear ignition based power restrictions with overall POOR fueling and you have a castrated machine. It really is shocking how well the GenII responds to the proper mods. Basically the full Yosh system, Ivan's ecu flash, PCV with his map, airbox mod and uprated filter gives you huge power gains as well as smoooth, linear power delivery. Its actually more like 25hp over stock at 7500rpm. Here's chart with the blue being his current "full package" offering including the ECU flash. Notice the "top end biased" gen II mill is now actually making 100hp at 7k rpm
In all likelihood that's a good bit more than what the stock Tuono is doing. Compare Ivan's chart with the previous shown Tuono one for instance . . . .
I am lucky enough to have neighbor with the TV4 with an Akra exhaust and uprated race ECU, not to mention BST carbon fiber wheels. The machine is an absolute beast to ride. On back to back rides it feels more brutally powerful than my GenII (haven't upgrade to Ivan's ECU flash yet) with wonderful sportbike like handling but the FZ isn't far off and the power delivery is much, much smoother. Ivan's flash will take the FZ to another level and particularly with the removal of the gear based power restrictions, the perception of power should be pretty similar. . .
BTW I have about $7.5K total (including purchase price) into my FZ (see my signature) and it actually would have cost a bit less with the now available ECU flash since I wouldn't have needed the ignition module, FCE or the smaller butterflies. Its a pretty sweet machine for the $. Fun to build too . . .
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