Kawasaki KLX300 SM Exhaust and fuel controller testing EHS Racing Barkers tuning on Dyno
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- Опубліковано 14 жов 2024
- Showing a KLX 300SM during the fuel controller testing process and exhaust development for the package that EHS Racing and Barkers Exhaust will be selling. Tuning on our Dynojet 250I. Comparisons vs stock exhaust and multiple airbox lid setups
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I had a 2022 klx300ds and put on a delkavic slip on , Kdx snorkel and PCFC and it made good power. Sold that bike to my brother. I bought a 2023 klx300ds and went with this set up EHS tuner, barker exhaust and lidless air box. The 2023 pulls harder and is noticeably faster. Thanks for all the hard work guys.
A fantastic and very well explained informative video on tuning the KLX300. Nice to see the solid performance gains from breathing and tuning optimization! I have 2 questions for you.
1, Would you be able to do a dyno test and tune with a set of aftermarket cams just to see if there are any gains available?
2, Do you have the ability to change the ignition mapping with your tuner, and if so do you expect that there could be further gains to be seen, especially with 93/98 MON/RON fuel?
I don't expect many people to get into head porting or big bore kits, but a cam change and premium fuel are things that people may do to get the best power out of the 300 without internal engine work.
I've been waiting on someone to make a video like this. Last year at a dual sport ride I got a chance to swap bikes with somebody that had a bone stock KLX300 compared to mine with an EJK exhaust and the typical KDX air box mod. I was blown away at the difference and so was the other guy. I always see people on Facebook pages saying the tuner doesn't add that much power, but I can definitely say after watching this it most certainly can back it up. This video is really makes me want to remove that secondary throttle plate.
I'm guessing we float in the same Facebook pages, so many people are against the secondary plate removal. I haven't regretted it, even if I haven't seen on paper the difference on my bike, I could certainly feel the throttle response change.
@@endlessclavicle514 - I'm new to the KLX300 (just got a 2024), so why are some people against removing the secondary throttle body plate? If just the secondary throttle plate is removed, is there any need for a fuel injector tuner box? Or will the mid-range and throttle response improve as shown by just removing the secondary plate with the bike left bone stock otherwise?
@@zeeosix I'm no expert but the short version for why people are against it is, the manufacturer and engineers put it there for a reason, and it's designed to keep throttle smooth. I removed it and had no issues. A tuner would probably be preferred as now your throttle opening is in your hand and the computer has less say, so you're adding air without increasing fuel. Again no expert here, thats just how I understand it all.
Is this the 14” exhaust can
Doing that today !
A really nice video with lots of good information. Thanks so much for producing this video and sharing with others. I am not supported by anyone but did some of my own testing. I would be interested in purchasing your fuel controller for comparison along with other tuning tips. It looks like removal of the secondary throttle plate improves torque/hp response at lower rpm. When do you think your "package" will be available for sale?
One of your viewers asked about an exhaust which creates less noise. I have a db meter I have used in my racing career. Measurements taken 7 feet from the source at 2 foot elevation. For your viewers I have the following comparison of the stock KLX300 dual sport model exhaust vs the FMF Q4, which is the quietest aftermarket exhaust I have found, but added power to the stock engine. I have installed the KX snorkel, Twin Air filter, EJK fuel controller under the left fuel tank side panel, and the FMF Q4 exhaust with spark arrestor to get dyno results of 25.5 hp with 17.4 ft/lbs torque @ 8k rpm vs the stock at 23 hp with 15.4 ft/lbs torque (stock data from Dirt Rider dyno results of a stock bike). The KX snorkel has much larger air intake and provides the vortex velocity to the air box vs an open lid air box.
For me the great advantage of the KLX is torque. I wish you had more discussion about torque along with horsepower. At 4k rpm you get 80% of the torque all the way to when the cam kicks in at 7k rpm with makes it really easy to ride at slow speed with lots of "tractor" like power! I rode the complete route of the Trans America Trail last year and I can honestly say the additional power of the mods on the hill climbs and technical portions of the trail, the KLX preformed excellent! I did change the rear sprocket to a 42T which is much better at slow speeds but runs the engine only 4k rpm higher at any given speed vs the stock 40T rear sprocket.
Exhaust data:
RPM readings @ 2.1k/3k/4k/5k/6k/7k/8k
Stock exhaust db @ 70/75/78/80/83/87/88 with respect to the rpm above
FMF Q4 db @ 75/78/83/86/87/89/91 with respect to the rpm above
I am very interested if you could follow the db test parameters above and test the Barker exhaust pipe for comparison. I have been told the Barker exhaust system is pretty loud.
One additional note....on the Kaw KLX forum, one viewer put together what looks to be a Supertrapp exhaust system on his KLX300 with no other mods and the dyno showed 25 hp, just with the exhaust mods!! I do not find this available on the Supertrapp website and reached out the viewer to see if he would provide parts so that other can do the same, but no response to date...maybe someone else could try.
Are you going to remove your secondary throttle plate now that you know that removing it can get about 3-4 extra horsepower?
The pupper @2040 got my like! Thanks for the explanations and filmed testing guys.
In your opinion, is the roughly 13.5afr seen with the throttle plate removed at 11:42 (7k rpm?) unsafe for the bike?
Afr at redline didn't seem to change with throttle plate removal, but at around 7k it's much different that stock, do you think that's lean enough to be harmful long term?
Really appreciate this video. I have a powercommander 6 on my 2022 KLX300R. I know it has the power to control spark as well, but I'm having trouble confirming if spark is infact being controlled on my bike.
Nice video! I have your airbox mod and fuel controller on my 17 Grizzly 700! You should do an XT250! My wife wants more power!
Excellent video, thanks for posting! Picked up a lot of great tips and you've got me interested in your fuel controller and that exhaust - found the controller on your website, but not the exhaust - is it going to be produced, and will you be offering it once available? Thanks again and keep up the great work!
Hey, where did you get the wrap from if you don’t mind me asking?
Awesome work! When do you expect to have the controller on the market?
this week or next
Will the current tune on the controller work with a Delkevic exhaust (or at least be close)?
Great video. Do you have a tune for the 2022 Kawasaki KLR 650? I'm like you, I want to have an air / fuel ratio in the 13 when cruising.
When will the kit be available? Well done, informative video!
Way over my head, but very in depth 👍🏻😎
Did you make the fuel controller or just make your own maps
Will this tuner work on the Klx 300 non SM? Or are there better options out there?
The fuel controler will work the same on Klx300 dual sport?
Just so I am clear, with your tuner, air box lid mod (stock snorkel?), barker exhaust, and one throttle plate removed, the whole package will net about 5HP through the curve? If thats the case, what does just the tuner + exhaust put out?
Is it possible to gain noticeable power without making the bike louder or with keeping the stock muffler section of the bike? I'm hypersensitive to certain sounds and that brappy exhaust sound happens to be one of them. I really appreciate the way you guys shoot this video, liked, subbed and 'all notified. It's a lot like hanging out there on scene in the shop and really soaking all of the info in. Right about the time I was wondering if you would touch on the secondary throttle plate you went through it in adequate detail. I knew the butt dyno wasn't wrong, lol. I removed mine (what a saga, lol) and it seemed a lot less sluggish near mid-upper RPM range acceleration.
Yoshimura typically makes quiet exhaust.
Many of them come with DB Killers that will tame down the noise.
I use AirPods Pro 2s and even with a loud pipe the noise cancellation is excellent.
As far as stock exhaust it’s very restrictive to pass emissions so you’ll struggle to gain any power. It’s like breathing with a blanket over your mouth. You can do it, but you can’t run a marathon like that.
@@marcochavanne This is the first time I have ever heard that and I have read a fair amount of discussion about exhausts and have asked around a bit about quiet performance exhaust options. Most people seem to chose the Delkevic product and they always seem quite loud on video. I really appreciate that your help.
@@marcochavanne I understand, thank you.
No problem! Its not like you can buy all them, test them, then return the ones you dont like.
Just off of my experience the Yoshimuras are subdued unless you get on it.
There are some DB test videos for other bikes like the Honda CRF300L that may help give you an idea since most companies use the same muffler design for their kits and just modify the piping to fit each model.
All this and only 26.4 hp? My Yamaha WR250R put out 32hp with similar mods.
it’s probably because of the sqaureness of the engine fr
The problem with the KLX is the cam timing on intake and exhaust are way off. If you swap the cam timing between the intake and exhaust you’ll gain 4-5 hp. No one gets this bike, it’s not made to rev 12000rpm like a Ducati that btw has almost the same cam timing.
Why not remove air box lid?
When sitting place, it's able to suck in the air as needed, but when you get up to speed, the air passes over the box and doesn't create the vortex needed inside the airbox to get the flow you really need to produce the horsepower at the mid to upper RPMs.
@@CrustyMac300 I can testify on 3 different KLX that having the lid off always amounted to more power vs a snorkel, fast or slow. The snorkel just quiets the intake noise but i happen to like it, especially on a stock exhaust
All that money and effort for around 4 hp
True. But 4 horsepower is about 20% more power than stock. That’s an incredible difference. That’s like turning a 400 horsepower Mustang into a 500 horsepower mustang. You’ll definitely feel that 20%!
can see a drag bike raptor 700 !
Its Junk
Will you buy mine back .
Very interesting process.