Carburettor VENTURI & HOW IT WORKS

Рет қаралды 6,962

3 жыл бұрын

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Пікірлер: 38

@NitroMike 3 жыл бұрын

Another great video. I am now constantly sharing that 1 hour 20 minutes video since I want everyone to see it. Nitro needs to make a comeback and that can only happen if we wipe out all the bullshit like "you can't run a nitro engine for too long or it will overheat" or "nitro is slow"

@daveshank1921 3 жыл бұрын

Amen. Or its too messy. Theres too much maintanance. Its alot of work. Blah thats all B.S. Nitro does have a learning curve but its not that hard. All cars are alot of work. You have to take care of them.

@craigjones2015 3 жыл бұрын

Thanks JQ you have answered all my issues that iv been having. It nice to see the problem being explained then how to fix it.

@cbrwix6999 3 жыл бұрын

JQ great video, please keep them comng. I reached out to Lefty on this subject as well but perhaps you could do a more in depth video on this. I think it will really help a lot of ppl with setting their cars up and understanding how the different weights effect the cars. I would love to see you make a video on diff weights and how running higher or lower in the front center and rear of the cars effect the power distribution and handling\steering.

@nomi86cool 3 жыл бұрын

People like you can actually teach many more new comers, more people in to this hobby more fun and than we have to pay less for parts lol

@mattw6842 2 жыл бұрын

Great vid it's the lady at the end for me 😆

@catssuck7239 3 ай бұрын

Racing, guitars and science👌

@josephgreer9693 Жыл бұрын

Just gonna sit and make some soup all sassy lmfao nice job, JQ is a great teacher. Thanks

@mtadave6702 2 жыл бұрын

And iv also found out that the force/ofna venturis are quite expensive and can only be bought in Germany for some reason, so is there any compatible brands for force venturis, like redcat or lrp maybe??

@5wd 3 жыл бұрын

Hi, and what about the engine torque?

@RcOffroad9513 Ай бұрын

I got a new gs racing r21 pbx2 nitro engine. It has a 8.5mm venturi, and is only a .21 I'm going to use racing 1/8 buggy. I haven't seen 8.5 before? It this too big?

@d3extreme 3 жыл бұрын

How does once decide on going with a bigger or smaller venturi? For example I run on a small low traction track and easily get 10+ minutes to a tank, but I'm not sure a bigger venturi is needed as I don't need the power.

@invisiblespeedrc 3 жыл бұрын

Then it is not needed. A bigger venturi is good to get more power or make the engine easier to tune.

@donaldflowers4269 Жыл бұрын

I have searched for quite a while and have never been able to find out any information about why a good tune engine will stall in a tight corner when the engine runs for a while and gets to great operating temperatures and running great. What would be your opinion? It also happens when it's running great and vehicle may roll over.

@invisiblespeedrc Жыл бұрын

Impossible to say. Maybe your idle gap is too small, low end too rich, linkage badly built, or your engine is just done

@donaldflowers4269 11 ай бұрын

@@invisiblespeedrc watched a lot of your videos and downloaded some to watch over and over. I am very appreciative of your knowledge and has helped me help others as well. Thank you very much for your response. I started studying more about glow plugs and found a great match that ended my issues. I have been so focused for years on carb settings and ignoring glow plugs. What a new view into nitros I have now. Keep the great content coming and I will keep watching...

@bigronn8506 3 жыл бұрын

I thought you would explain that in a more scientific way, it is good and understandable dough. But i was expecting something about the "venturi effect". So the way how to produce negativ pressure in a pipeline... I wonder anyway, what takes more impact to the fuel flow, the "vacuum" in the carb(venturi effect), or the resonance of the exhaustpipe... Would be interessting to see pressures und airflow in the engine

@invisiblespeedrc 3 жыл бұрын

Im not interested in engines enough to care

@bigronn8506 3 жыл бұрын

@@invisiblespeedrc never mind... I saw the video about how to tune the engine. it is the best video about that i've seen so far. Not only the explanation, but the way you tune as well... i never understood this topend based tuning other people do...

@chiconmy1515 3 жыл бұрын

How can it be that you answer all he questions and problems many many people have. And so that everyone gets it Quick. We were waiting for you faaaaar tooooo long JQ

@invisiblespeedrc 3 жыл бұрын

Because I research, study and learn and I care. I use my super power of critical thinking and reach a conclusion, and then I take the time to think of a way to best communicate this conclusion to others.

@chiconmy1515 3 жыл бұрын

@@invisiblespeedrc and that makes you awesome sir💪Thank You for your efforts

@30nitrorc26 3 жыл бұрын

Can u please point me in the right direction on why my Lrp.32x backfires through the exhaust at wot

@daveshank1921 3 жыл бұрын

Try to lean the top end a tiny bit at a time. Could also be that you LSN and HSP are not balanced well enough. Too hot a glow plug may also cause that. I would richen up both needles and start over.

@jimmygonzales5756 Жыл бұрын

Question I have do you set idle gap with Venturi on or off

@invisiblespeedrc Жыл бұрын

No venturi

@jimmygonzales5756 Жыл бұрын

@@invisiblespeedrc thanks, one more question I watched your 1 20 video and I still have one problem on a high speed pull and let go of throttle engine revs high a could seconds and then drops to idle. What am I doing wrong?

@invisiblespeedrc Жыл бұрын

@@jimmygonzales5756 top end is too lean, or you have a leak, a bad gasket, torn carb boot, bad front bearing....

@craigjones2015 3 жыл бұрын

I would like to run for you guys. That's if I can get sponsorship. I have a nitro car I like it alot more then my ebuggy

@invisiblespeedrc 3 жыл бұрын

I have spent thousands of dollars in the past months, and 20 years learning, so that I can make free videos for you, and you want to support me if I give you more? Sorry, its your turn now.

@daveshank1921 3 жыл бұрын

@JQRacing Amen JQ.

@natangburek8979 3 жыл бұрын

Yea small carb saving fuel less power Big carb lot fuel more power But we want more power n small fuel consumption

@redblue40rc33 Жыл бұрын

Take it out and let the engine scream....atleast thats what i would do if i was sponsored and got free toys all the time to tear up and not care how much it cost😊😂

@michaelmontgomery6388 3 жыл бұрын

The first video I watched of you was the one hour 20 minutes, and I've seen quite a few more since. What I've noticed, is that there all just repeates from that. Don't you have anything else to add about rc car's??

@invisiblespeedrc 3 жыл бұрын

Most people won't sit through a 1h20min video, so it makes sense to release the most important parts as separate videos. No, this is the extent to my knowledge of RC cars. I will shut down my channel on saturday.

@daveshank1921 3 жыл бұрын

He doesnt recycle content all the time. There is alot going on on these cars so you have to take into account multiple things when you change or talk setup. The man is doing more for us hardcore RCers than anybody has before. He has been doing indepth vids for a long time now and is very intelligent on the subject of car mechanics.keep up the good work JQ.

@teabagmcpick889 25 күн бұрын

No, no, no, no, no, no. You almost touched on it at 2:30 but No! The engine has 3.5cc's and it revs at 50,000 rpm so it sucks that amount of air. The size of the venturi doesn't change the amount pf air the engine draws, it only changes the speed of the air through the inlet - which in turn has effect on the tune - but not much. A smaller venturi makes the engine feel punchier but it's a feel thing. The truth is capacity x rpm = air consumption. Bernoulli is your friend here because physics can't be cheated. Don't believe the hype.