Oh my!

 

Indeed !


8 HP midrange gain on a 44 HP smallish displacement engine is pretty frickin' good with "just" bolt on gear. Way to go MNNTHBX !!

 

Sure did smooth it out, all except the top end. What caused that dip at the top end. I'd like to see RPM's laid on top of that graph.

 

We had RPMs on the Duke run, but not the RC run (no easy access to plug wire), so it wouldn't let us overlay that information. Basically, the pull starts at 2000rpm, and falls away at the limiter just past 10k. As for the dip up top, I'm not sure. We can probably tune it out, but as stated, this was a plug and play test...

 

You have my attention. Did you have to make any modifications to the header O2 bung to install the wideband?

 

None. The Bazzaz is a direct fit.

 

Severely impressed. Would have liked to see a better max-bhp gain, but that's a healthy mid-range no one can dispute. For reference KTM reckons their Akra + remap nets a +5 max-bhp gain. Is the MIVV you had on a deCAT system?

 

Again, I'm sure we'll find greater numbers once we play with the mapping, and switch to the GP can. Mind boggling #'s weren't the goal of these pulls, just a baseline. No cat. I too would love to have seen peak 10k power even higher, but the reality is this makes REAL power, right where I actually use it 95% of the time I ride the bike.

 

I was going to ask MNNTHBX if they felt the GP can would be less restrictive than the tested pipe. The GP I had on my F800R was awesome with or w/o the DB killer. Have you guys weighed the stock system in comparison to the MIVV units ? Posting that info might drive some sales....


I have no problem with a minimal top end gain compared to a whopping midrange gain that starts from 2,000-2,500 RPM all the way up...

 

Just ordered my mivv suono exhaust from yall! It normally has a cat correct, I'm ready to take this danmoto off my bike!!!!!! At least the hard part of removing the factory exhaust is over

 

Great job guys. Thanks for all your hard work for our bikes. What would this pkg cost?

 

You can price your options out at MNNTHBX - Enter

 

Only problem with the GP can is it's ugly as ****. Whereas the Suono is actually a pretty exhaust so much more of a possible option for me.


Personally for me it's now a question of "mod the 390 or buy a 690". Both have a lot of merit.

 

The can styles are a matter of taste. In my opinion only.... The Suonno looks great on the Duke, not so great on the RC. The Ghibli looks fantastic on the RC, not on the Duke. The GP looks good on both.

In order of performance, lower to higher, they are Suonno, GP, Ghibli. That said, the differences are SLIGHT, and can't be felt on the bike. One huge plus to all of these cans is that MIVV provides some fantastic db killers so you have options.

 

I'm going to be cheeky here


MNNTHBX, can you remove the AF-M and see what the results are please ? Whilst I understand it's use, it's a chunk of change into the equation that if we could get away without, may actually make it far more viable for people


Also, in the interest of supporting the forum sponsor, if you could work out the price shipped for the ZFI and a Suono Black to the UK that would be great thanks. It may not work out as we need to add on VAT at 20% whereas I can buy from Italy without the VAT, but you never know... lets see what it comes out at price wise.

 

The stand alone pipe dyno results are available on MIVV's site. The pipe + Tuner is a true case of 1+1=3. Neither works incredibly well without the other, though they'll both make slight improvements alone. We ship international daily, but your best bet is to by Euro.

 

Is there a pkg deal if I order all 5 items listed in your project? Just had to ask, being the tight ass that I am.

Thanks again for all your hard work.

 

Sorry if I've missed this on MNNTHBX - Enter but do you have anything for standard bike with the zfi and AFM?

 

Bazzaz has already provided that info. In a nutshell, it's smoother, and about 1hp more. You wouldn't need the AFM if adding the Bazzaz to an otherwise stock bike.

 

These confirm what my butt has been saying since I bought and installed the MIVV Suomo, K&N with MNNTHBX open airbox, and the Bazzaz fuel controller piggyback unit (without auto tune). The guys at MNNTHBX sent me two maps, one for DB Killer in, and one with it out. I knew that the midrange was vastly improved, since this is where I and most riders pend a lot of time. I havent hit the revlimiter yet on my 800 mile Duke. I wholeheartedly recommend these three items be combined for a pleasing improvement to a great machine. This little engine just feels happy and spins up effortlessly.
MNNTHBX loves the little bikes, their Groms' and Ruckus' are a hoot. Now they have turned their attention to our Duke with great results. Support these guys! Their service has extended past the sale, with helpful advice and support.

 

Sorry if this sounds like a stupid question... But in my defence it is 11.30pm here and I am as sick as a dog with a bug of some sort, so the head is not thinking clearly.

I was looking at your Air Box cover and am wondering how exactly it works better. Because if my memory serves me correctly, the air filter is fed via a plastic pipe going into the side of the air box. If you remove the cover, wouldn't you still be getting the same airflow volume into the box, since your using the same pipe work?

The reason that I am curious is a) I was going to do an order from your page for the brake pads anyway, b) looking at your dyno figures, I think it will go well with my set-up (powertronic, MIVV exhuast, DNA filter) c) I know a few other Duke riders here in Nam are interested in it.

Cheers for your response.

 

Rusty, the new lid replaces that pipe altogether...

 

How does this setup feel at low RPM / low load situations where the stock bike surges and bucks along? I have the PowerTRONIC on an otherwise stock bike. It's better than stock, but the bike still surges and has the huge dip in the midrange. Looks like your setup solves the midrange flat spot, but what about the fueling below 4000rpm/10% throttle opening?

Also, would love the MIVV + airbox lid + K&N + EFI + AFM offered as a "stage 1" kit or something with a bit of a discount.

 

Our bikes show no signs of surging. They pull smooth, strong, and liner bottom to top. I'm all about cutting deals, but there is shocking little profit in that package considering the total. We'd be willing to ship it free...

 

hI MNNTHBX

What would be the improvement for a K&N filter plus Bazzaz but leaving the stock exhaust. Have you dinoed it like this? Personally, I don't want to remove the stock one as common exhausts are prone to scratches and are usually louder than you expect.

 

You'll see smoother fueling and a slight power gain, but nowhere near the combo. Of note, the MIVV systems come with great db killers, and buttoned up are far from loud....

 

Forgive my "old School" input, but I have been owning and modifying motorcycles since 1971. The MIVV exhaust with "free'" maps from MNNTHBX, open airbox with K&N and Bazzaz fuel controller is the easiest and MOST EFFECTIVE improvement in any motorcycle that I have ever owned. All of the lean fueling issues, surging, hard starting or poor fueling at high rpm in older carbureted motorbikes had to be laboriously sorted, with many jetting changes, and almost all were done by the seat of the pants or on a dragstrip, and were rarely attempted by the average owner. This new "plug and play" system eliminates all of the old hassles that were a challenge to anyone attempting to improve their machine. The dyno tests that are taken for granted now were not even a dream for most owners.
PROGRESS! We take it for granted, but it is amazing when viewed in historical context. The savings in time, money and hassles are worth the cost.
I ruined two sets of expensive pistons sorting the jetting on my 1973 Yamaha high performance two stroke...

 

Nuthin' wrong with old school Scotty. Having done Yam, Kaw and Jetski tuning/modding for last 30 or so years it's downright easy to do plug n' play ecu tuning compared to setting port timing, cutting piston skirts and boring carb bodies (lets just leave porting off the table LOL).


We're positively spoiled with new technology, however certain basics still hold true regardless of vintage, brand name or sticker price...


Still boils down to fuel, ignition and combustion cycle and hopefully always will or else I'm in BIG trouble

 

Sorry, just to confirm, exhaust is can+mid pipe? Not full header?

An you pm me price for both bazzaz units shipped to UK please?

 

Mid-pipe & can. Pricing including your shipping will be determined in your cart prior to checkout @ MNNTHBX - Enter

 

I have a final question (for me) on this....


If I were to buy a Z-FI and a Z-FM unit in the UK (My dyno mate is a Bazzaz supplier), would I expect them results out of the box ? (Assuming I fitted an exhaust). If I get it custom mapped it's a good $300. Which takes it out of what I class as a 'good' price. But if I can get the units and install them myself, then it's a possible.

 

do you guys have a dyno graph with just an air box mod. i would like to see the mid range gain with stock exhaust.

 

So do I. From all that I have red and investigated there should be also big gains with just the air box and the fuel controller. Just a few vendors dare to show dyno graphs of that set up, just because it will affect aftermarket exhaust sales. It seems it's difficult to beat the OEM exhaust in the performance department and, if that's truth, who is going to spend $400 in a steel can which offers zero performance gains -at best -?

 

ZFI Duke 390

Like many others this is the first EFI bike I have owned , Of the 20 or so singles , twins and twostrokes I have owned I have always done my own tuning , rebuilds and service , I was hesitant to purchase the ($450 CDN) Bazzaz unit but after I installed it the bike had a completely different feel . It felt perfectly tuned .... no more mid-range flat spots . The ZFI system was quite easy to install and the Bazzaz Map 1 is great for a slip-on and air filter mods . If anyone is thinking of one of the ZFI units go for it if you can !

 

Life keeps getting in my way right now, and Bazzaz seems to be closed for the holiday. But I did take a test ride, and can say that besides getting rid of the surging at low rpm the midrange is much, much stronger. I doubt that a pipe would change that very much. Top end, yes.

Considering that the basic map was made for the racetrack, I'm a bit worried about range. I need a bike to go at least 100 miles between fill-ups. This was a problem with our (rejetted) Hawk GT. Would really like to try a map that was a compromise between this and stock. Or can I just go in and create one with the Bazzaz software by adjusting individual data points?

 

Before you do anything, test your mileage, as the default map isn't radically fatter than stock. If you want to milk milage, bump the target AFR to 13.5 or even 14. Also, if you view the Bazzaz YouTube channel, you'll find a LOT of technical video that will help you maximize to products for your goals. Happy new year.

 

Okay, I managed to get in touch with Bazzaz tech support. I learned a couple of things, and one of my worries was confirmed.

First, what I really want is a way to just reflash the stock ECU. Here's why.

This device, and most likely all piggyback fuelers, eliminates the O2 sensor. Our travels include some pretty high altitudes and occasional detours that increase distances between fuel stops. My wife's HawkGT (another bike with a tiny fuel tank) ran out once in the middle of nowhere, so I am pretty sensitive about range. I could load a second map, created either manually or with the Auto-tune they offer, but that just another fixed map. Same goes for going back to the stock mapping. I'd prefer some automatic adjustment for barometric pressure, but that's just not possible with this device.

Riders in the UK and other flatlands might be okay with this, but we have real mountains here. Tioga Pass is at 10,000 feet, for example. Mt. Palomar and Angelus Crest, which are favorites of local riders, are above 6000. I know, you folks in northern India are not impressed. Racers set up for the specific conditions on race day. I'm not willing to carry my laptop around on the 390!

I will get a switch today, and go by Bazzaz to pick up the connector I'll need. I'm not giving up quite yet, but this setup might be FS soon. Hope I can still run the open airbox, as refitting the snorkel would be a PITA. I'll know a bit more about that when I switch to the stock map.

I've seen references to reflashing the ECU on a couple of forums, but not this one. Does anyone have some info on this?

 

I'm also going in that direction for several reasons:

- I'm pretty sure decent gains are to be achieved with just a re-map and a high flow filter. No need for an expensive and noisy steel can.

- Difficult for the WS- al least in my country - to figure out that the map was modified, so no warranty issues.

- The ease to go back to stock map just uploading it with a laptop.

- The hardware needed to do so is worth less than USD 30.

- No wiring issues, hassles

I have already ordered the connectors to make the cable so I can use Tune ECU software and - at least try - to use the KTM factory software.

My only concern is that a dyno session could cost almost the same as a fuel controller so I was thinking about crowfunding it. Let's say the ones who donate are eligible to receive the map once it is developed and tested. If four people donate USD 40 each the costs are covered and there will be 5 dudes (including me) happily enjoying the map!!

The only problem I foresee is that I doubt switching maps is possible with stock ECU and that would be the only reason to wait for and buy the announced powertronic update which is supposed to feature it as well as traction control.

 

It's almost always the case, in any application, that you gain power at the expense of millage. 99% of buyer use this product to richen the bike, which obviously requires more fuel. It seems to me your solution is two load two maps, one for milage/altitude, the other for performance. As always, feel free to pick our brain through our site.