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Old 27th March 2012, 20:56   #1
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Default Project Yusheng in Mainland China

Since we are based in China and all cars tuned are mostly German and Japanese cars, we have decided to try buying Chinese SUV or the so called Chinese Hybrid SUV. We found Yusheng, made by Jiangling Motors (JMC) as a good one. We have done some modifications on it to optimize its performance.


YUSHENG Specifications:

- the chassis design is similar to the old Toyota Land Cruiser Prado
- 2.4TDCI engine similar as the Ford Endeavour (first generation common rail)




Modifications Done:

Installed Tornado Tuning box, a normal common rail tuning box





Advanced Throttle Controller (ATC), a pedal tuning device was used



Clutch is most important thing for Chinese SUV modifications, so we bought the original clutch and sent to Germany and then they changed the outer covering







Shocks Absorber was changed using Bilstein Shocks




It seems that the original springs are not doing good so we changed and ordered a custom made spring from Dobinsons Australia with 5mm lowering



We decided to make the intercooler on front mount, so we change to the hood mount, with this it makes the SUV significantly faster






But at the same time this hood mount created some undesired problems. Due to hood mount design, it was supposed to withstand the engine vibration, but it didn’t. Thus design was seems to be inadequate. Also the material used for conveyor pipes seems to be not providing the adequate grip to withstand the pressure, creating a leak and thus decreasing the performance.

So in order to improve the design i asked some Team BHP people to provide an adequate solution, but they couldn’t.

So I switch back to the original design




We are thinking of upgrading the turbo, but instead of getting the bigger turbo, we send our stock turbo to Turbo Dynamics and then they changed the inner fan


Modifications on turbo:
- Modified K03 56 trim compressor wheel
- Compressor cover profiled to suit cutback turbine wheel
- Blueprinting throughout







Exhaust and muffler was also changed for minimal heat loss and more power efficiency








After Modifications:




NOTE: We are doing these modifications specifically for Road Tuning and prefer stock modification

Summary:
1. Using common rail tuning box (tornado tuning box), it increases power of around 20 percent and smoother engine performance.
2. The Advanced Throttle Controller (ATC) pedal tuning was used for better response on the pedal.
3. After the clutch modification, it can handle more transmissions thus optimizing output power.
4. Bilstein shock absorber does work, significantly minimizes vibrations and improves ride quality and comfort.
5. In the turbo modification at higher rpm it decreases boost thus keeping the engine safe. It improves pick up response.
6. The exhaust and muffler minimizes the heat loss and lessens back pressure thus improve power efficiency.
7. Wurth engine oil additive is used for better performance.


CONCLUSION:

After the modifications, the engine power have been increased, with better driving comfort and stability similar to those of the high end expensive SUVĄ¯s.

I would like to Share my personal experience that among all these modifications, the modification in clutch and Turbo is most significant. It contributes 80 to 85% in the improved performance, and thus i am happy to conclude here that, the money we spend for all these modifications is worth it.


Note: This post is to provide purely a technical information and itĄ¯s not an advertisement; and the modifications we have suggested are not for sale.

Future upgrade and modifications will be posted soon here...
- BMW X6
- BMW X1
- BMW 116/118
- FORD Mondeo Ecotech 2.0TDI





.

Last edited by narry : 27th March 2012 at 20:59.
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Old 27th March 2012, 21:07   #2
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Default Re: Project Yusheng in Mainland China

The intercooler in and out has a 90 deg bend which is terrible for air-flow.

Make sure you change that to a curved fitting with a radius as large as possible.
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Old 28th March 2012, 07:10   #3
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Default Re: Project Yusheng in Mainland China

@Mpower: But he has removed the intercooler IAC
@OP: How expensive it is to get custom modifications executed?
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Old 28th March 2012, 08:46   #4
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Default Re: Project Yusheng in Mainland China

Narry, is this a factory intercooler?!!
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Never imagined a factory could make such a mistake!
Hope you rectified the design problem when you moved it to the front.

Edit: Just re read the post and found that this was not a factory IC

Last edited by Sankar : 28th March 2012 at 08:50.
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Old 28th March 2012, 10:51   #5
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Default Re: Project Yusheng in Mainland China

@Sankar: No,It is not a Factory Intercooler.
Actually,our main business is Making Car Software's, and providing a Solution in order to let people personalize their vehicle according to their needs.So for last 2 Years we are doing this business in china.
While doing this we want to innovate some other ideas in the car applications.So we are making some new designs for different parts of the car.Also the mentality of Chinese people is like,They think only beggar can have a Chinese car,and innovation happens in only German and other European cars.
So i wanted to prove that Chinese cars also can be tuned with some new ideas and implementation to provide a efficient solution for such cars.
This intercooler was one of the part of our implementation.Here the idea was like to shortened the piping(conveyer) length and decrease the unnecessary overhead so that the turbo can spool it faster and increase the efficiency.So we tried to implement it using a Hood Mount instead of original Front Mount.
But it failed due to some undesired causes of designing and fabrication.
So we again switch back to the original design.
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Old 28th March 2012, 21:32   #6
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Default Re: Project Yusheng in Mainland China

Quote:
Originally Posted by narry View Post
But it failed due to some undesired causes of designing and fabrication.
So we again switch back to the original design.

I think sankar was more worried of the 90 degree turns in the pipes on the IC. Anyways since you have not shared the latest mount pics lets hope the new fabrication does not have such restrictive bends.


Pramod
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Old 29th March 2012, 09:44   #7
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Default Re: Project Yusheng in Mainland China

You should dyno it if possible. Would help to know the before and after difference technically.

Whats the stock power of this vehicle and price?
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Old 29th March 2012, 10:39   #8
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Default Re: Project Yusheng in Mainland China

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Originally Posted by pramodkumar View Post
I think sankar was more worried of the 90 degree turns in the pipes on the IC. Anyways since you have not shared the latest mount pics lets hope the new fabrication does not have such restrictive bends.


Pramod
Yes the 90degree bends and the design of end tanks of the IC.
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Old 29th March 2012, 11:43   #9
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Default Re: Project Yusheng in Mainland China

Cool mods for a diesel suv,
What have you done for braking? or is it enough to stop the vehicle in high speeds.
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