Brutally honest SMARTCARB SC2 review.
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- เผยแพร่เมื่อ 21 ส.ค. 2024
- #smartcarb
#sherco
#2stroke
The SmartCarb is a precision air and fuel metering instrument designed to push the limits of mechanical fuel atomization.
Ultra-fine fuel atomization occurs via proprietary venturi features that concentrate and accelerate airflow past a precision ground metering rod. High velocity airflow focused directly at the metering rod picks up fuel droplets that are smaller and more uniformly distributed in the mixture than those produced by modern EFI and conventional mechanical fuel systems. Superior fuel atomization provides for a more complete combustion burn, resulting in increased power (10% More HP) using less fuel (30% Improved fuel economy)
smartcarbfuels...
Bought a SC2 for my 2018 husqvarna TX300 and the carb turned it into a monster. Best $700+ I spent. Amazing
My bike idols and add under 1000 RPMs. It's crazy for a two-stroke. My SC2 is so freaking sweet.
Thanks for sharing your thoughts. I'm ranting to all of youtube not picking on Mak here, all of the SC2 reviews are "seat of the pants" reviews. The rant is that there are so many motorcycle dynos out there and no one has done at least a busch league dyno test comparison the SC2 vs Keihin for example, where they even use an oxygen sensor to tune the carbs. Also with a load bearing dyno, for example maintain a steady 15 ft-lbs of torque, one could do a fuel consumption test running a fuel line from a bottle to the carb and then measure time and the amount of fuel used from the bottle.
From there you can calculate BSFC (brake specific fuel consumption) which would normalize results between the carbs. BSFC is the main indicator of efficiency and what OEM powertrain engineers use daily for mechanical and calibration optimization of combustion engines.
You just hang tight there we have some stuff coming. And I like your style you want all the nerd data like I do and we have something in the way. Thing is dynos are expensive dyno time is very expensive too and getting in the schedule to get that time if you don’t have one is tough and their just aren’t many out there. To get a machine made up to do these tests like that and installed and concrete and then permits your looking at a starting investment of around $20k and then that only test’s specifically for one density altitude, temp, humidity and all that jazz so do you even get real world tuning and real world specs off it in varying altitudes where this crab does best over lectron and standards carbs. That’d be a great mikuni carb test since they don’t meter for any density altitude and produce the most power given one setup for specific elements. But I do get where your going with that and why it’s been about 2 years of getting stuff together and proper dirt bike testing gear has to be made to work because well we’re not gonna hook an old sun machine up to do full spectrum results you’d need a pickup following you around. I built deag cars before and when you dyno them it’s just to get cool guy numbers and base tune when you get to the track it’s test pass after test pass to get the tune right. I wish it was more like engine master but that’s something we really want to get more into for dirt bikes. So I absolutely love your ideas and greatly appreciate the support 🤘🤘 and we excited to announce some stuff soon it’s just been a journey but I think your really gonna love it. Because I am lol 😂
@@maksikkarenduro9218 Hell yeah, just made sure Im subbed!!
With FMF Gnarly Torque and SmartCarb II that 300 Sherco should be a damn hard enduro slayer.
With the fmf factory fatty and new factory sherco engine in her frame she is quite the hard enduro slayer.
@@maksikkarenduro9218 IMO the FMF fatty pipe seems to be the best pipe for the 250 & 300cc. 2-strokes whether it's a KTM, Husqvarna, Sherco or GasGas. I love the smooth power & torque of the 300 2-strokes!
I have one on my beta 300 and love it. They send them very rich I think I dropped 10 clicks and went up on the metering rod. It was running lean on the top end.
Smartcarb or lectron
@@maksikkarenduro9218 SC
Try setting it 95 clicks adjust after your bike is hot like 30 minutes or so. And try that out
@@maksikkarenduro9218well smart carb sent mind to me at 72 clicks and I’m now at 82.
Idles like a 500 for sure, sounds great. Im surprised the SC it that good, just click up or down until you find that "spot" huh.. TwoStrokePerformance has a power kit now for this bike, supposed to make 55hp with the stock carb with adjustments. However the SC seems be the new standard for carbureted bikes.
It’s just way to easy with smart carb.
I agree with what you said about electron I bought a carburetor off of them guys about 4 years ago never could get it right and I've been tuning carburetors my whole life I'm 63 and both Kevin and Dave basically told me unfortunately there's nothing we can do but they didn't have no problem taking my money.
Yeah their customer service is absolutely trash. They kept telling me to sell it to someone else well I eventually took it apart and it wasn’t even finished with mill work and I had to drill the holes out and also adjust float height and then I made some of my own mods and installed it on a rm250 and that lectron is still being used today and still hasn’t been adjusted or anything since I set it up. So they are morons and when I told them they said well there you go. I’m like no not there you go I bought something that was supposed to bolt and go but had to do a few hours of work to even make it run and finish something that I bought that was supposed to be finished when I purchased it. Absolute D bags in my honest opinion.
tuning carbs all your life, but how many emulsion tubes have you redrilled or filled?
or... how many wolselys from 1904 with an "air compensation valve" have you tuned?
these are not carbs in the traditional sense. if you know emulsion tubes inside out, or air compensation valves, they make sense.
the bowl is sealed and vents to the venturi... thats... important. critical.
i got no comments on the company, no affiliation. not about to fork out, especially with the exchange rates.
.
whereas by figuring out how these work i can modify regular mikunis and their clones for next to nothing ;) the throat is a funny shape for a reason. thats the hardest part!
How much clicks leaner did u go from factory based setting?
Which SC2 did you install, the 38 or the 36mm?
I noticed an immediate difference (better bottom end, throttle response) with 36mm Keihin on my '20' Sherco 250...vs. any 38mm on my KTM 250 and 150 (tried Lectron, Keihin and Mikuni). Back in March, bought the 36mm SC2 to test and swap amongst the Sherco and the 2 KTMs (both '17' xcw's 250/150).
Unfortunately, it arrived the same week after a bad race/hand injury (had to recoop from that) and it's been nonstop raining in TX....looking forward to my opportunity to deep dive into it.
Sorry I should’ve mentioned that in the video it’s a 36. I had a 36 keihin carb on it before. Was okay but jetted it to oblivion. I swapped out numerous needles and so many different setting couldn’t get anymore power from the bike. Now that it’s dialed it’s a lot more powerful. Very impressed.
@@maksikkarenduro9218 thanks for the heads up....honestly, any 36mm would seem better for throttle/bottom end vs. a 38mm (after my first 36mm keihin experience on the sherco). After much research, seems people didn't complain much at all about the 36mm for 12 years prior to 2017 with the orange bikes, then from '17' on all hell breaks loose. I'm just hoping the 36 SC2 will end up being easier for better/cleaner tuning and better bottom end. My first experience with 2 strokes began in '17' on KTMs...so, I basically started out with "unknown BS" and a lot of frustration. For more open styled desert racing, the 38mm seems more appropriate, however, for "woods" and more difficult enduro riding, the 38 is a big fat "NO" especially for 250/150...don't know about the 300.
It’s gotta be better than lectron. Had one on my 2018 husky and had nothing but problems. So far love the Smartcarb
@@maksikkarenduro9218 yeh, just took the 38mm Lectrons off my xcw250 and 150 (waiting to try the SC2), my local track is closed owing to water/flooding (air boots already cut on both, the Sherco is next).....the Lectron 38 always felt anemic (minimal grunt) at throttle input (compared to 36mm Keihin on Sherco) but the Lectron ripped really good from about 1/3 throttle on up in the open stuff (just not good for the woods)......same on the 150xcw and a 38mm (actually worse in the woods, with horrible bogs) but it's probably decent on the MX track for full-on. Friend has both Lectron 36 and a 38 on two different orange 300's....he said the 36 Lectron bike is an absolute bottom end animal and screams but the 300 with the 38 is basically blahhhhhh, but still not bad.
The best settings I found with the keihin carbs for responsive throttle down low are with Suzuki needles necj and nedj on both the KTM 300 and the Sherco 300 the KTM is more responsive to the necj and necw but the nedj feels pretty good too the Sherco really liked the nedj the most but the necw and nedw felt more too end happy. The sc2 on the Sherco made everything better everywhere. Hard enduro outfitters just sent me the fmf factory fatty I’m gonna try that out as well. But it’s pretty solid now and couldn’t be happier. Added quite a bit of power everywhere and now the bike is a whole New animal. I think your gonna be pretty happy with it just get an hour of ride time in it before making your first adjustments.
What metering rod is in it? Also, what altitude do you ride at?
AQ-11 Smartcarb sent me a new rod to try out and it’s even better all the new Smartcarb’s are gonna come with this new metering rod. If they aren’t already on the market. I ride lots of different altitudes, from sea level to 12k feet sometimes more if I can climb it trials style. I do a lot of riding at sea level and 1500 feet and then a lot at 3500 and 5k-7k feet so it’s always changing
I havent bought one yet but i am very curious to see one on a brand new bike and see what kind of hours it could get out of it just figure it might have a decent spec for fueling and if you chose a good ratio to premix your fuel at i think you could get more hours out of a 2 stroke and maybe even less wear for these older bikes etc
That was a brand new bike. That 2021 sherco has a brand new engine going in right now and it got smashed up in page, Arizona training for grindingstone I ran that bike at 66:1 and had 150 hours of really hard use on it. Smartcarb is still on the bike. I run motul 800 premix. Technically the engines still fine just broke the shifter off inside the engine after it took a hard core hit to the shifter side.
I'd love to see someone put a smartcarb on a klr or drz.
Would also love to see an o2 meter on there.
Hell yeah post some footage I’ll stop by your channel and check it out 🤙🤙
Right is rich left is lean. Don't blow it up my friend. That's where all that new power is coming from.
Sherco 300se w/ smartcarb is hard to beat
I have the same. It is excellent.
The mikuni carbs are known to have a middle gasket failure, did you check yours ? That was the problem in mine
These bikes come with a kehien carb and then I put a Smartcarb sc2 on.
@@maksikkarenduro9218 OK, the same goes for the Keihins, the jet block gasket is the problem 95% of the time.
So do you do reflash of ecu for the public?
The public?
I tune ecus for KTM, husky gasgas engines. But need your bike and ecu because I don’t do a straight across the board basic tune I tune each an every bike as an individual. You can’t get the most out of your bike with a basic canned tune. It’s okay but you need to calibrate the electronics too like tps sensor. Putting a canned tune in your bike is like putting a store bought car tuner it’s okay adds a little lower but it’s not specific to your bike. My tuning is like sending a high performance race car to a customer tuner to remap the ecu. Building an tuning race cars is what I’ve been doing for a long time. Now I’ve brought that knowledge and experience to dirt bikes.
Is that a low seat? How do you like it?
Hi, is the fuel consumption noticeable?
Yes it’s a noticeable difference the sherco tank is already larger so you automatically get more miles than say the TPI bikes. But I was getting about 72-75 miles before and with the smartcarb I’ve done 68 and still had almost a half tank. Also depends on the type of riding I normally stick to hard enduro and trials type rides that require alot of pushing and bikes in its side before I was getting around 25 miles but I get about 2 days of extreme riding now so about 50-60 because nothing getting spilled out of the float bowl. A well tuned carb like a 38 pilot 168 main with 60:1 motul with the necw needle makes the sherco run really well but the smartcarb runs like a well tuned carb all the time.
how come there is tons of fuel all over it....... its leaking....
The same guy invented both the smart carb and the Lectron
Yes indeed but theirs a big difference between double pumper and a Thermo-quad as well.
@@maksikkarenduro9218 Have you by chance seen the new 2 stroke specific BILLETRON which was only just released a couple of weeks ago? The reviews that I have seen on it all made mention of both revised control placement (choke & metering adjuster) and a vast improvement of the carburator's power jet system. But then again everyone whom reviewed it was given the carb from Lectron / Technology Elevated, thus they didn't actually have any skin in the game. Anyway, I truly appreciate your reviews and comparisons as an actual consumer.
It's more nuanced than that. Yes the Lectron (first released in 1974 by the way) design was credited to inventor William "Red" Edmonston who, after GM acquired Lectron in '78, went on to develop the Ei Blue Magnum, the QwikSilvers, and ultimately the early SmartCarb before his passing. We had the fortune to work with him prior to that and have continued its development since, including securing our own patented feature improvements on the concept. That said, nearly 40 years of development separate the two products origins. See our article about their shared history and how they compare on our website.
@@SmartCarbFuelSystems
Well thanks for your responses back and the absolute wealth of knowledge on the subject. I will definitely look into that article on your website.
@@vicgeier8849 that's awesome. We're still looking for a prime example of the Ei Blue Magnum for our collection. As for your RM250, consider what the SmartCarb offers that the Lectron or Billetron doesn't: external adjustability without tools in seconds (with 3X the adjustment resolution), true-to-size venturi (not 4mm smaller than advertised like the H-Series and Billetron Lectrons), and a TPS option for your ignition mapping.
How much did you adjust it
Left is lean.