is a long one, but it's full of internal organs.
Zongshen motorcycles can also be regarded as grass-roots, almost nothing to do with motorcycle manufacturing and almost nothing, Zuo Zongshen started from a car repair shop to build engines and cars, and the journey has been smooth. It was originally an inspirational brand, but it feels like it hasn't caught the pulse of the market in recent years.
It seems that China's rally car started with Zongshen's rx series, and Zongshen's rx3 was the first to become famous, and Zongshen is really well-known in the rally car market with rx3.
But not so much rx3 is famous, it is better to say that the nc250 engine is famous. The prototype of the engine mounted on Zongshen rx3 was the strongest domestic 250 engine developed by Zongshen Power Department at that time. On the day this engine was born, it was Megatron Sifang. It was originally installed on Zongshen’s professional off-road racing vehicles, and Zongshen has also made great achievements in off-road racing. This nc250 engine is the biggest The power can reach an astonishing 21kw. Although this is a special tuning for special situations, this level is already the industry's first.
Actually, this 250 single-cylinder engine with extremely powerful explosive power and high rpm output performance will be a good home when installed on off-road vehicles, and this set There is nothing wrong with the power system itself. Zongshen Power is a very strong department, but it does not work with Zongshen Motors, the two are relatively independent companies! You heard it right, they are two different companies!
And this nc250 engine is applied to the rx3 car, the cooperation relationship between the two departments is like two different companies doing business, only equivalent to Zongshen locomotive purchasing one from Zongshen Power Nc250 engine. First of all, the frame of rx3 is obviously not tailor-made for this nc250 engine. The size of the whole frame is very large. Of course, there is no problem with strength. Such a thick steel double-wing beam frame is used for pulling force. On the car, its good tensile performance will be well reflected. However, the frame of is too big for this exquisite nc250 engine. How can you kill a chicken with a sledgehammer?
rx3 frame is more suitable to install an nc350 or nc450 engine. In addition, once the nc250 engine used in the event is deployed to the private sector, the power will be greatly reduced. The maximum power is reduced to 18.5kw and the maximum torque is only 22.5 Nm. Regardless of the power level, this level was already very good at the time. It's just that Zongshen's positioning of his rx3 is a hard-line pull, he is going to travel through mountains and rivers, poetry and distant places. Let's go back to the engine itself. Such a 250cc single-cylinder four-valve water-cooled engine has a compression ratio of 11.6:1, and the piston bore and stroke are 77*53.6 respectively. Obviously, this is a machine that pursues high-speed output performance. Low-torque, passionate engine that you can't expect. Such extremely irritable engines are definitely not suitable for rally cars, especially hard-core rally. What is the pursuit of a rally car, is low torsion, comfort and low failure rate. However, these requirements have almost nothing to do with this nc250 engine.
Friends who have experienced the nc250 engine should know that the vibration of this engine is not too large, but the internal sound is very noisy, and the low-torque performance is quite poor. It can only be used The way to control it. Moreover, rx3 is not light, with a curb weight of 175kg, not counting three cases, it is really hard to say easy to ride at low speed, not to mention it is only a 250 model. Someone has to say, isn’t the Suzuki DL250 also low-torque, and the curb weight still exceeds 200kg?
That’s right, but the positioning of DL250 is not hardcore pull, It didn’t even say that it was a rally car, it was a RV. Such a high-revolution engine is really hard-line, can it be said that this nc engine is not awesome? Awesome! Quite awesome! The power level is absolutely in the forefront of the same level, and the strongest domestic 250 single-cylinder engine developed by foreign designers who have spent a lot of money has light weight, strong explosive power, high power and good reliability. But there is no doubt that it is not suitable for pulling force.
The car with the opposite path but the same encounter is Loncin Wuji 650r.
However, it is obviously incorrect to put all the charges on the unmatched engine, and the performance of the whole car is not satisfactory. The first is the configuration. The whole car configuration basically has no bright spots at all. Although the imported brand accessories were relatively rare in domestic cars when the rx3 was first released, the rx3 did not have any. The matching degree between this engine and the body is very low. In addition to off-road, seems to be difficult to find a place for this engine. Other commercial models equipped with this nc250 engine are almost all uninterested.
It’s not worth mentioning the basic materials. Mention.
Let’s talk about the brakes first. No car owner will say that the brakes of rx3 are sufficient, which is normal, and it is basically in a state of being unable to brake. Too many owners changed their brake calipers later.
And the effect of the whole set of shock absorption can only be described as perfunctory. In addition to the high strength of the entire frame, there is no advantage. The overall response is not quick and light enough, and even feels slightly slow. That kind of unspeakable awkward feeling can basically be felt when riding. A steel double-wing beam frame exposes the drawbacks of the heavy weight of the cradle frame, and the whole car can make you messy.
Indeed, Zongshen rx3 looks like a hardcore rally car, the configuration looks very "hardcore", the front 19 and 17 spoke wheels, with Professional multi-functional tension tires, the front and rear shock absorption stroke is also long enough, and the handle is wide enough.
But as soon as I ride it, I can't feel anything that has much to do with hardcore pull. The price of the final return also made rx3 panic. At that time, the Suzuki gw250, which was already the benchmark in the domestic 250 market, was priced at 23,800 yuan, and rx3 was also sold at a price of 22,800 yuan. Even the gw250 was only equipped with a technically backward four-valve double However, domestic consumers had already had enough of the single-cylinder "torture" at that time, and the double-cylinder had become a rigid indicator for motorcycle selection, not to mention the rx3 single-cylinder engine experience was not ideal.
What kind of rally car is recognized by consumers in the market? The first is that the exterior has a pulling style, spoke wheels, tubeless tires, large windshield, handlebars, large fuel tanks, and the engine starts with at least two cylinders, low torque, strong operation, smooth operation, and low vibration.
To put it all together, Zongshen still has not got the pulse of the market, the configuration has not kept up with the positioning, the technology has not adapted to the trend, and the price has caught up with the benchmark. nc250 Is the engine bad? Okay, everyone said yes, but after making technological breakthroughs and winning honors in races, is it suitable for rally cars? Not suitable at all.
and now rx4 is repeating the same mistakes. The off-road characteristic nc450 single-cylinder engine developed by Zongshen Power has also been widely acclaimed when it came out, and it has also been adapted to Got on off-road racing and won honors.
Before the launch of rx4, it was also widely used on cross-country motorcycles of various brands, and was finally applied to its own hardcore rx4 by Zongshen Locomotive , Is there any difference between the path and rx3? No, now, is there any news about rx4?
