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I had this exact sound and wobble on the engine on my old saab 9-3. Thanks for the short and straight to the point video!

Nice tip! Thanks

What part is that broken piece

Great video Than you Hey I was wondering ,what if you have a po420 with a leak before the rear o2 and a higher temp at the upper weld ring than you do at the lower weld ring on your catalyst That's what I have going on. Would you still fix the leak first then check the temps again? Or is my Cat gone at this point?

@calebsengineeringprojects6202 This video is fantasic. I want to know more about the controller aspect. Emrax motors seem to be paired with Bambocar D3, but I see they arent really available. Sevcon Gen4 Size 8 is in stock in various places. What about making a controller myself? Another question would be the battery for the build. I am choosing cells of 3.6v at 5000mah from Samsung. How do I build the battery to my specs (considering running at low volt config of 180v)? After all, the only way to calculate the kWh that I want the battery pack to have ,is to figure out how much power it will draw over the 2 hour span I want it to have. How would such a thing be calculated? Thank you so much!

Welll It's a poorly designed, poorly mfg'd Engine . You've gotten your $ worth out of this POS car you bought Move on.

Wish more people taught any info on this thx

I found parts of this video very informative, thank you.

Subbed! Awesome content! Im making a crosscart hopefully electric and this stuff is gold

Should we calculate the moment of inertia for all rotating components, such as all four wheel rims and tires

Im wanting to go to purdue for automotive engineering. currently Im currently perfecting my math at community college, because its cheap, but once i get though past diff eq, and stats as well as get further into science, but this is awesome stuff and id love to collaborate on a design.

That's one of the most knowledge packed videos ever, great work! I will probably come back to it many times

I have top speed, 3 acceleration performance and 1 braking performance for an EV. How do I find peak torque and peak power from it? Thanks!!

Incredible video ! Concerning the EMRAX 228, you don't speak about the different converter of electrical energy that are needed, could you indicate what kind of component were used between the battery and the motor ? Thanks again

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"So I'll be replacing the gasket there"(2:10 - 2:13)...ahh...the camera angle was wonky. WHICH gasket?...exhaust manifold?...intake manifold?....other? Looks like the exhaust heat shield covering a metal flex joint on the exhaust...so maybe an exhaust header-to-pipe joint gasket?

My seals knowledge was underdeveloped when I recorded this. The rubber seals on the Drexler differential are more for keeping dust out of the needle bearings than anything. They especially do not "help keep the axle straight," that's the needle bearing's job. Contamination can impact the efficiency and longevity of any moving part, be aware of this when designing and use rubber boots over CV joints as well. Contamination includes both metal shavings in your shop and the debris of the road during testing.

Another update: Lots of motors have a built-in gearbox so they can directly connect to the axles while still achieving reduction. This is sometimes referred to as an Electronic Drive Unit, or EDU. EDUs sometimes integrate high-voltage components as well, like an inverter.

Hi. Thanks for video. How long did it take to get access to the chain and how long to do the job in total?

Hello, out of curiosity why not use used OEM parts like a Nissan Leaf motor or Chevy Volt batteries? Is this explicitly banned by the rules?

Shop vac is a great idea. Well done Bubba!

Clicked on this video thinking the Powertrain setup looks familiar. Realized it’s from LU-01😳

Awesome. Thanks for the video.

Did this sound go away when warm?

Would you be able to share an example matlab file?

I found an error in the video! Due to tolerance stackup (which is a topic not covered that is worth Googling if you're unfamiliar), only one tooth of a sprocket takes most of the reaction force of the chain. You still use steel for driving, aluminum for driven, since you still have a long lever arm on the larger sprocket. The wheels will turn before the aluminum tooth yields.

What gasket was it you replaced brotha?

Can't we use hub motors

What are the requirements of fsae ev Like torque Gear ratio Top speed Diff....... And etc

Which motor is used in this ev

thanks a lot man ,

Hello guys, thanks for the great video. We are an FS team attempting to design our first EV. Could you please tell us if you used a table power supply for testing, instead of a battery pack?

Hi, thanks this video has been really helpful. But shouldn't we consider the Cog position in the equations?

Absolutely Incredible video. As the High Voltage Electronics lead on a first year team, this made a lot of things more clear and made everything seem more achievable. Keep doing great things man.

Hi! is it possible to share the mathlab? thx!

Hi Caleb! Would you be able to share the matlab code you used for the calculations?

Wow I never thought that SAE Cars were so complex! Great video!

Hey, thanks a lot for the video. At 29:00 there is a statement that appears incorrect to me. The force of the chain does not divide evenly amongst all of the teeth of a sprocket. You can see this for yourself by applying force to the chain and then wiggling the chain links in the middle of a sprocket. You will notice that they are loose. In fact only the first couple teeth take all of the force.

Omg the video quality and the music really make it feel old, I love it.

Awesome!!

I’m experiencing the exact same issue with my 06 reg 1.8 turbo petrol, great pointer, very concise diagnosis, think I’ll start here

Hi, I am Graeme John Eddington. Following is my TH-cam post of my Multi-speed transmission I have called: "Opposing Torque Dynamic Clutch" which is a type of Infinitely Variable Transmission (IVT) which I believe is ideal for your current applications. Australian Patent Number: 2020201132. Please log on to my TH-cam video: th-cam.com/video/SACDK89U7PM/w-d-xo.html In summary: It is a Compound Planetary System with two inputs from two separate electric motors. Motor 1 tries to rotate the carrier counter-clockwise and Motor 2 tries to rotate the carrier clockwise. The ratio, acceleration and speed of the vehicle is controlled by the amount and proportion of power/torque from the two motors. In addition the ratio of the transmission is affected by the speed and load of the vehicle. So, with the aid of speed sensors on all the components of the transmission, the speed of the vehicle, position of the accelerator and a kick-down switch - all that is needed to control the whole system is a computer. There is no actual gear selector for the driver to operate, however a manual mode would be appropriate where the driver has a 'balance' control knob that manually controls the proportion of power/torque to each motor and therefore can choose any ratio desired for the driving situation. An added enhancement could be added to the transmission by having a traditional planetary overdrive attached to each of the motors to enhance the rev range of each motor. This would enable the provision of extra modes like economy mode/sports mode and improve the kick-down mode by inputting more revs when the gearbox is in an extremely low ratio during kick-down operation. Having this type of transmission would improve acceleration and range of the vehicle allowing for a smaller battery pack/lighter weight leading to cost savings and simpler manufacturing. My name is Graeme J. Eddington, smart-s-trans@hotmail.com

Hi, I am Graeme John Eddington. Following is my TH-cam post of my Multi-speed transmission I have called: "Opposing Torque Dynamic Clutch" which is a type of Infinitely Variable Transmission (IVT) which I believe is ideal for your current applications. Australian Patent Number: 2020201132. Please log on to my TH-cam video: th-cam.com/video/SACDK89U7PM/w-d-xo.html In summary: It is a Compound Planetary System with two inputs from two separate electric motors. Motor 1 tries to rotate the carrier counter-clockwise and Motor 2 tries to rotate the carrier clockwise. The ratio, acceleration and speed of the vehicle is controlled by the amount and proportion of power/torque from the two motors. In addition the ratio of the transmission is affected by the speed and load of the vehicle. So, with the aid of speed sensors on all the components of the transmission, the speed of the vehicle, position of the accelerator and a kick-down switch - all that is needed to control the whole system is a computer. There is no actual gear selector for the driver to operate, however a manual mode would be appropriate where the driver has a 'balance' control knob that manually controls the proportion of power/torque to each motor and therefore can choose any ratio desired for the driving situation. An added enhancement could be added to the transmission by having a traditional planetary overdrive attached to each of the motors to enhance the rev range of each motor. This would enable the provision of extra modes like economy mode/sports mode and improve the kick-down mode by inputting more revs when the gearbox is in an extremely low ratio during kick-down operation. Having this type of transmission would improve acceleration and range of the vehicle allowing for a smaller battery pack/lighter weight leading to cost savings and simpler manufacturing. My name is Graeme J. Eddington, smart-s-trans@hotmail.com

Very helpful for raw hand!Thx!

Great video! Well made. Thanks mate

Your videos are real helpful, is there any means through which i can get in touch with you since this time our team is a bunch of newcomers and we really don't know how to proceed

Typical ecotec. Just replace the lot, I did. Yes it does run the water pump.

Have you searched for the rest of the guide? Maybe it is in your oil pan now!

Hi, I am Graeme John Eddington. Following is my TH-cam post of my Multi-speed transmission I have called: "Opposing Torque Dynamic Clutch" which is a type of Infinitely Variable Transmission (IVT) which I believe is ideal for your current applications. Australian Patent Number: 2020201132. Please log on to my TH-cam video: th-cam.com/video/SACDK89U7PM/w-d-xo.html In summary: It is a Compound Planetary System with two inputs from two separate electric motors. Motor 1 tries to rotate the carrier counter-clockwise and Motor 2 tries to rotate the carrier clockwise. The ratio, acceleration and speed of the vehicle is controlled by the amount and proportion of power/torque from the two motors. In addition the ratio of the transmission is affected by the speed and load of the vehicle. So, with the aid of speed sensors on all the components of the transmission, the speed of the vehicle, position of the accelerator and a kick-down switch - all that is needed to control the whole system is a computer. There is no actual gear selector for the driver to operate, however a manual mode would be appropriate where the driver has a 'balance' control knob that manually controls the proportion of power/torque to each motor and therefore can choose any ratio desired for the driving situation. An added enhancement could be added to the transmission by having a traditional planetary overdrive attached to each of the motors to enhance the rev range of each motor. This would enable the provision of extra modes like economy mode/sports mode and improve the kick-down mode by inputting more revs when the gearbox is in an extremely low ratio during kick-down operation. Having this type of transmission would improve acceleration and range of the vehicle allowing for a smaller battery pack/lighter weight leading to cost savings and simpler manufacturing. My name is Graeme J. Eddington, smart-s-trans@hotmail.com

Great video!