The Raptor 700 is getting a fully programmable fuel control. If possible, I would like to get Owner’s and Tuner’s feedback before the product is finalized.

How many people want to mess with fully programmable fuel control versus just selecting already tuned Profiles for different engine, exhaust, airbox and fuel combinations? How many of you want to weld in (or have welded in) bungs for Ox sensors? Would you like to order exhaust pipes with an optional oxygen sensor bung already installed? What would this feature be worth to you (so the exhaust manufacturers can determine if it is worth their time to do it)? What is your priority for features like?-

Data logging for every second your Raptor has run
Programmable fuel
Programmable ignition
Ability to change-
Profiles (maps and all) on the bike without a PC
injector
fuel pressure
Extra features like-
extra pressure sensor for boosted applications (turbo, super)
electronic boost control
nitr. sol. drivers

I know what I want but that is not necessarily what you guys need....

Here is what is coming-
Direct replacement for stock ECU - Zero splicing into your harness.........
Fully programmable
Fuel
Ignition
At least 15 rider selectable Profiles. Profiles have everything from Maps and Timing to warmup enrichment and accelerator pump affect.

Mapping done by Volumetric Efficiency Table and Target Lambda Table
VE describes how your engine pumps and Target Lambda describes how rich or lean you want it to run at any point.

On board Bosch LSU4 wide band Lambda

At least 60 hours of logging and probably over 100 hours, all at 10 samples per second. There is no start or stop logging condition. All the data is stored since you first plugged it in and switched on the key. I do not know about you, but I am sick and tired of trying to track down intermittent problems without data.

Now for my real pet peeve and the reason I did this. Lambda is qualified as valid then sorted for each load point. The samples are then averaged and compared to your Target Lambda and you are presented with the result. If you choose, you can ask the program to fix your VE table to correct for rich or lean conditions on a cell by cell basis or globally for the whole map. I have spent way too many hours pouring over logged data from my megabuck data acq system to try figure out where I am rich or lean and by how much. PCs do this much faster and better than I can by hand. In addition, when you have the Lambda, logger and fuel control integrated, you can use engine status to qualify Lambda. In other words, if the engine is in warm-up mode, acceleration enrichment or deceleration enleanment, you just plain do not use the Lambda samples.

As for auto tune, I have never trusted a machine to make my tuning decisions even if its "authority" is limited. I would not expect you to either and thus it will not autotune. You look at the data for your machine and you decide what you want to do.

With respect to moving forward, the system is being finalized. Questions like how far from Target Lambda is acceptable? How many Profiles do you want on the Raptor?

All these things are being tweaked as we speak and thus I am very interested in people's thoughts and comments both positive and negative."

 

power and reliabilaty is the only thing needed. More is just enough. tuning is no problem, it's the experimentation that sucks. if a company would spend time with the 700 like they do with the 450's we would not be talking about this but sence, in my opinion, they are dont want the 700 to out run the 450's and reduce the sales of a money maker. besides who wants to hear all the boo hooing from the 450 guys when they loose to a nolonger stock bike. what i want is reliable parts that can provide what they clame. but if i need a pit crew to keep my bike running its not worth it. 2strokes are to easy. give me reliable power and i'll buy it.

 

Are you working for a company that plans to make this, or own your own buisness?

 

I would not spend a dime on an experimental ECU. I would spend on a proven ECU that has reliable data base with an easy to use instruction set a 10 year old could figure out to set up a matched performance gain for the mods added. Simple is better. Complicted is not marketable except to a small populus.

I commend you and envy your knowledge of what makes a major performance gain for a very good ATV. I wish you all the success and recognition you deserve. [img]i/expressions/face-icon-small-smile.gif[/img]

 

We are shooting for the best of both worlds. If you do not want to play with oxygen sensors, just ask for it without that option. You do not need to be a tuning wiz (or know anything about tuning for that matter) to get something from the control.

It is actually easier to use than any other solution out there! It takes about ten seconds to swap the fuel control and push the start button. Zero wiring or splicing into your wiring harness! It takes just as long to swap it back if you ever need to.

It comes with the Profile you want as the default Profile. If you want to play with other Profiles, all you do is hold down the throttle when you turn on the key to select a different one. No PC is needed!

You get ignition advance which dramatically improves performance and drops exhaust gas temperatures from the 1530F range to about 1050F! You get to burn the fuel in the combustion chamber and not the exhaust pipe where it burns your leg.

You get off throttle ignition advance engine braking. We are currently working with riders to generate different Profiles for different riding conditions or styles. Some guys want it to slow like it hit a brick wall when you close the throttle, others want it to roll on. The amount of advance you put in lets you choose either extreme or something in the middle.

We are trying to put a tremendous amount of power and flexibility in a small simple easy to use package. The throttle selectable Profiles idea came from a top pipe manufacturer. Ideas like that are most welcome. Any ideas to make the thing easier to use for everyone would be helpful.

 

I am one of the technical guys making it happen. My job is to make sure the feature set matches the customer's needs. I would love to talk about dunes if you have a few minutes to educate me. We Florida guys do not get much in the way of dunes larger than those we find at the beach. One question would be off throttle braking. How much would you want for dune riding? Do you like the rear wheels to drag for rotating in a corner?

 

Does your design allow for future work on the motor like porting, larger valves, larger cams, bigger bores, or larger throttle bodies? What you are doing so far sounds fantastic.

 

I am going to try to answer this with a "Two Sides of the Same Coin" approach-

Technical
If you are doing the work, you plug in the O2 sensor after ANY modifications and add or SUBTRACT fuel as you need. You can redo the throttle position settings to accomodate any throttle position sensor on any sized throttle body. You can move the power anywhere in the RPM band (and increase peak RPM) and still get the fuel and timing dead on. If you cams work better higher up in the rpm range and yet hurt you a bit with reversion down low, you can add fuel up top and pull it out down low. If you are a builder or tuner or just want to learn, there are no limits to what you can do.

Non Technical
The guys that build the cams, throttle bodies, ported heads and the like will do Profiles that make your bike run right. All you do is bolt on the parts and plug in the control. If you buy Stage I mods on day one and upgrade to Stage II mods six months later, all you need to do is hold open the throttle when you turn on the key and choose the blinking light that equals "Stage II Profile". You will have the exact timing, fuel, throttle position settings,,,,,,,,, that you need.

Where have we missed?

 

As far as compression braking, in the dunes, I like it to freewheel when I let off the gas.....like a 2 stroke would. The sand is enough braking under normal conditions.

 

Where do we buy it? Sounds good. Keep us posted. [img]i/expressions/face-icon-small-happy.gif[/img]