2021+ Honda CRF300L Yoshimura RS-4 Full Exhaust Exhaust & ECU Tune Dyno Numbers
HTML-код
- Опубликовано: 13 мар 2023
- Curiosity finally got the best of us and we took our 2021 Honda CRF300L to the dyno to see just what this machine is capable of. Join us as we break down the power this bike makes along with some nuances and look forward to the future!
Make sure to subscribe here: bit.ly/1jq2ZrN
Follow us on Facebook here: on. 1nuTjlF
Follow us on Instagram here: / tstindustries
Follow us on Twitter here: / tstindustries
After tinkering with our CRF300L cosmetically, we wanted to try and push it a bit more in an effort to squeeze even more power out of it. Will our years of building proven racebikes hold over or is this bike a case of "you get what you pay for"? 
Авто/Мото
I did all this stuff to my 300. I really don't care what the numbers say. All I know is the bike is alot more fun to ride now.
That's all that matters!
Smiles per throttle twist.
Thanks for doing all the thorough testing, it's extremely useful to know what can be expected from tuning a bike like this regardless of what the actual results are.
All the armchair engine performance experts in the comments lol. Guys pay attention - a 4hp gain on a 150hp motor is negligible. However, 4hp on a 27hp motor is 15%. Add to that improving the throttle response and also (probably more importantly) the power to weight ratio with the 6 or 7 pounds lighter exhaust system. It does make a difference, but you still have to be cognizant of what this bike was designed to do, ie. it's *not** a 350EXC.
Can we hire you to reply to comments on all power related videos? 😅
@@TSTindustries I'll tell you why I'm like this: I know there's young guys reading these comments who don't know much yet, and they'll believe the "dUdE YoU nEeD MoAr bIkE!1!" comments. All I'm trying to do is save them some money and grief. I did the whole big ADV thing, it's ridiculous.
@@mollygrubber What are you talking about? Barely 1hp more at 2:37.
@@aussiesam01 ya oops - its 4% not 4Hp.
Well presented and informative video.
I’m sure there is more to be had but this is great confirmation that the yoshi pipe is perfectly safe on the stock tube. Great video
I don't know why you guys all think that a multi billion dollar automotive company that puts billions of dollars into vehicle R&D just leaves piles of horsepower on the table to be grabbed up with a pipe and some ECU fiddling.😂😂😂
@@phantomshtter I don’t think anyone expects “piles” of hp gains but manufacturers are forced to leave fairly accessible performance on the table in order to meet emissions standards. A pipe and tune is most of what is needed to get that performance back. This bike won’t make 40hp but it could get pretty close to 30. Doesn’t sound like a big deal but every bit matters on these smaller bikes and they are cheap enough that it’s still makes sense to some.
@@phantomshtter naw, you're not smarter than the strawman group of fantasy people you're addressing in your imagination.
An ECU reflash and new pipe elimate all of the strident EU limitations that no billion dollar motor company can legally remove themselves.
You're a pillock.
Good content guys. Addressing the question on everybody's mind.
Thanks for the video! Great!👏
You're welcome!
Thanks for the video and results. I've been on the fence about wanting an exhaust and tuned ECU for my 300L. Even though there are gains,it doesn't seem worth the cost...to ME. Some feel it's definitely worth it. To each their own.
I feel it’s worth the flash to smooth out the jerky throttle. Not necessarily looking for a power increase, although, they say you can feel a little bit.
I put a full dominator on mine, it makes me smile when i ride it now
Thanks!
I have a full exhaust and tune on my bike, and I can personally attest to the performance. Gaines definitely worth it.
What is your top speed?
Excellent work Bart.
Did we do airbox mods to go along with the flash? That'll help. :)
We are at the end of the project Steve. We played a bit with some components on the intake side, but found this bike pretty resistant to further bolt-on performance part response. With marginal results to heavy effort, we decided to go on to the next bike in this realm to keep things fresh. On the flip side, we are working out a racing R7 package, and refreshing the SS 400. The SB 400 is also going to be worked out soon. Then the ZX4R arrives. We are keeping pretty busy so the 300 project had to come to an end .
You essentially need to remove the velocity stack, enlarge the airbox hole, and install one from the CBR300R to gain any power with an exhaust.
The CBR300R cams also make a huge difference. I picked up torque and HP through the entire rev range with all of those mods paired with a 550 Performance tune.
excellent!
Thanks!
This convination make the perfect bike 30 kl a litre lot of fun
Hi, I want to ask if anyone had this issue..i just installed the yoshimura full exhaust and I noticed that a small bracket from the engine is touching the exhaust pipe ..a bit further back from the sensor.
Is it normal or just mine ?😊
So will the bike run fine with a full exhaust without a tune ? Seems as though it gets a reasonable performance gain with just the full exhaust and the differences the tune makes is negligible but is it necessary to keep the a/f mix correct ?
How much weight saved?
its amazing how fuel injection can adapt to the new air flow increase a tune is almost uneeded compared to a carby bike
Are you offering a reflash of the stock ECU Tune? GREAT work and I order from TST!
Nah, we aren't. For this bike we had to go with Power Vision to flash the ECU. That costs 200 dollars per ECU just for the license to get into ECU. So with our work added to it the cost would be over 300 dollars per ECU. We decided that cost to benefit ratio was not right for it to become a service we offer.
@@TSTindustries Thanks, will be ordering from your site for other bikes! : )
Surprised how little difference there is between the pipe and the pipe plus tune.
Very important question! If I am ordering a hyperpack bundle and a front headlight bundle, will I need 2 relays or just one? Really need this answered!!
Only one relay all around.
That's a ton of effort - and $ - for next to no returns.
Most of the time that is the case on sub 500cc machines, especially singles.
Did you install the CB300 intake? this engine is chocked up pretty good from factory... ????
Yea the intake mode is 1-2HP gain in itself
But acc. to Honda it should have max. 27 hp in stock condition. So how do you explain that there are some hp missing?
I wonder how this tune compares to the 550 performance tune. What i'd consider is the gold standard right now for the CRF300L tunes
Those guys actually spent a good amount of time with the bike on their dyno and found more improvements than us. Our approach was basically to see what is possible with a quick parse at full open with fueling and timing. Since this bike prooved to be a slug and have not much more to offer off the bat, we decided to move on to projects where it makes more sense to spend our time, and leave this platform to the 550 guys.
@@TSTindustries thanks for the reply! Yeah it is kinda gutless. "sleep coffee ride" was able to really pep this bike up with a few mods, but it's still by no means a performance machine
@@t_c5266 My main gripe is a combination of too much mass and not much head room for easy engine performance increase. I decided to switch to a project with more promise.
Can you make tail tidy for honda crf 150L sir from Philippines
I'm sorry but at this time that is not a project we see ourselves taking on.
Looks good......Save your money. :-)
My Honda dealer said the Rally comes with an extra 3-4 horsepower. Can anyone confirm or disprove?
I find no merit to that claim. Published by Honda engine output specs are identical
I put in $2000 on my 250l 😊came to 29hp 33 foot pounds of torque.
1 hp more...at what cost?
imagine if you tuned it without the baffle!🤦we will never know
It would've shown such a minimal difference. We still have the bike and can do it and report back but the baffle isn't holding back tons of horsepower. We're talking less than half a horsepower at most probably.
so.. the fuel remap isn't really worth it.
I would say that unless you have changed cams and.or ported the head, there is little to be gained. If I spend a day or two fine tuning it with just exhaust and some intake mods, we can see a little gains. You just have to weigh that against what that costs, and then you can judge if it is worthwhile to you.
It looks like he peed himself😂
Hey man, that 300 packed a big punch and sent chills down his spine. 😂
1 horsepower gain for a probably $600 exhaust? 😂
Yeah but it does look cool. It's also 1/10th the price of the bike lol. I'd take a slip on for half the price just for sound if they had it. Having heard one it person, it just sounds sharper and less like a sewing machine.
Yeah at peak it increases 1 HP, if u see the curve there's lots of gain in the lower rpm where you could really feel the difference tbh
Looked like almost 4hp to me at peak. That's almost 15% power gain. Plus the loss of several pounds of stock "muffler fat" to further improve power to weight ratio. I'd say it's a worthy mod, if you are willing to spend the $. Me, it's staying stock. I like a quiet bike and so do my neighbors and their sleeping babies :)
Just think, all these morons could have spent forty dollars on a rear sprocket and gained 11% torque at the rear wheel.😂 Horsepower is practically an imaginary unit of measure anyway and a full Yoshi system is actually like $1000. You could buy an entire adventure riding vacation with that money.🤦
It also sounds and looks way better. Not to mention bring your engine temp down with more airflow.
I dont see any improvements. Not worth the 1500 for exhaust and tuner. Ty
Honda dumbed down the CBR300R 30.5hp tune to only 26.9 hp on the CRF300L/Rally. the CBR300R ECU should smarten up that dumb dumber tune and should yield about 27hp at the rear wheel! Honda did a similar dumbing down on the CBR250R 26hp tune to only 23hp of the CRF250L.
I think you'll also need the cams, intake and etc to see that gain lol.
@@STOK5OH, Just like the CBR250R's 26hp dumbed down to the CRF250L's only 23hp(21.9 in Asia) equating to less than 20 hp at the rear wheel. With the same cams. But 28mm throttlebody and CBR250R ECU and a BAS yields the 26hp(about 24hp rear wheel). plus stage one of open airbox and Yoshimura exhaust to 28hp(about 26hp rear wheel). That's already done and proven.
Vast 4% 😂
The tune didn't do anything at all.
It did, but to find more we would have to mess around with the tuning for a bit of time. Since this was a quick video project we didn't go into detail.
Very small gains, big deal
I am having a difficult time determining which syllable was stressed in this sentence.
This proves that tuning is a waste on this bike, just like the crf250l
I wouldnt call tuning a waste. I think a few nore mods would have to be made to the intake side, some cams and porting, and then a detailed tune session At that point it would be worthwhile.
@@TSTindustries you’re right. I could have worded that better 😂
Bad review :(
What’s bad about it?
@@TSTindustries You speak a lot about stuff that you already said about, and it's looks like you are sponsored by that upgrade kit and you can't shit on them...
Or like you are selling that kit and you are acting like that guys on "teleshop" scam commercial's...
This convination make the perfect bike 30 kl a litre lot of fun