Released DeLorean DMC-12 ('81 - '83)

Agent_Y · Feb 7, 2021

Tommy Foley said: ↑

What happens if it gets taken down. It's been known to happen with copyrighted property. Would you keep putting work into updating it and reposting it? It's a damn good mod, one of the best I've seen, really all it needs is some texture polishing and interior features then you could basically call it done, maybe some damage model improvements too, the BTTF part of it is just above and beyond and that's really awesome. It's cool to see things like this come together, you should be mighty proud.
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I'm pretty sure a copyright claim like that only ever happened once on the forums, usually it's not copyrighted brands but stolen assets that get the mod deleted, and this is 100% scratch made so no risk of that.

mrsmash · Feb 7, 2021

i'm about 99 percent sure the remaining DMC company as well as universal pictures/amblin entertainment wouldn't copyright claim this at all

ParadoxShiba · Feb 8, 2021

default0.0player said: ↑

CVT doesn't work well with electric motor because it lowers the transmission efficiency. Belt drive is significantly worse than gear drive in terms of efficiency, that's why even in an ICE vehicle, CVT is less fuel-efficient than manual transmission.

The problem of electric vehicle is despite it's high efficiency than ICE, it has lower topspeed, poor "power utilization"(explained below) and less "fuel" economy at highway speeds.

Most if not all EVs only have one powerband

As shown in this Tesla Model S, the power band is 45~75 mph. ICEVs can shift gear, making them multple power bands.

For example the Hirochi SBR4, the TTS2 power bands are 53~62, 90~107, 125~148, 157~189, 191~229, 236~283, 310~369km/h. The eSBR 800 power band is 109~156km/h.
That's why despite the eSBR 800(807PS) has much more horsepower than the TTS2(454PS), the TTS2 is a bit quicker(at least not slower) in races.

Electric Vehicles also has problems such as low topspeed and poor economy on highway speed, due to the very short final drive (torque multiplication ratio too high)

The energy losses of an ICE are heat dissipation(combustion heat unused) accessories(coolant pump, A/C, oil pump), pumping loss(throttle valve vacuum), and mechanical friction. To drive eco, cruise fast enough to shift to the highest gear. Low rpm means low friction losses, highest gear means low torque multiplication ratio, the engine load is higher, the pumping loss is lower. That's why ICEV is more efficient on highways.

EVs on the other hand, is less efficient on highways, because the torque multiplication ratio too high, often 6~9 in comparison to ICEV final drive 3~4, and no shift gear(alway on 1st gear). Thus, cruising on highways the RPM is also high.
The energy losses of an Electic Motor are mechanical(friction, cooling fans), core(hysteresis, eddy current) and resistance(winding) loss. Mechanical losses are linear(friction) or squared(cooling fan) at RPM, core losses are squared at RPM change, resistance loss is I^2*R, is squared according to electric current.
EVs use or induction motors or permanent magnet motors.
Induction motors at max acceleration(full throttle) the motor driver increase voltage/frequency(V/F) to speed up, maintaining rated current(thus rated torque) until the max power rating is reached, then in adjust the V/F to control the power rating. At max voltage, the motor driver controls the F but not V, leading to a loss of torque. At partially throttle, the motor driver just reduce the torque/power output according to the gas pedal.
Permanent magnet motors are similar to shunt excited motors(shunt winding replaced by PMs), the higher the RPM, the higher the back-EMF, the motor driver adjust the motor voltage to higher than back-EMF and use the voltage to control the current, according to the gas pedal.
The problem is, when reaching max voltage, there's also a max RPM because of the back-EMF. To reach even higher RPM, the motor driver have to use field weakening

This is accomplished by inputing another current to reduce the PM magnetic field, this is effectively manipulating the shunt current as in a shunt DC motor, this lowers the efficiency by making the motor "softer".

Now let's compare the difference between these motors.
Induction motor: higher resistance loss at high load, because both the stator and the rotor have current, more efficient at lower loads(no core loss when the current is off). At higher speeds(above base speed) the motor is less efficient because it's "softer", higher "slip"(input F minus rotor RPM) lower efficiency.
Permanent magnet motor: better efficiency at rated power, since there's only one resistance loss, but low efficiency at lower loads(core loss is present even with zero current). Remember the "cogging" torque when you turn the motor by hand in an R/C car/plane/boat? That's core loss. At higher speeds(above base speed) the motor is less efficient because it's "softer", the efficiency is even lower than induction motor because additional current is introduced to weaken the field.

In order to hypermile an EV, the driver need to stay below the base speed(note that Tesla best mileage is achieved at 39km/h, half of the base speed), and use moderate load(the best efficiency is where the core loss is the same as resistance loss).
In practice, vehicle manufactures and most of the customers favor 0-60(0-100). They use the 0-60 lunch (and possible illegal street drag racing) to claim they are "superior" than ICE drivers. Only to be disappointed when they realize cruising at highway is only two thirds of rated range.
In terms of sports EV, they use high powered motors to achieve higher speeds, the acceleration is capped by tire grip, thus the base speed is higher. However, since the motor rated power is high, the motor load is low on cruising(300kW rated but cruise at 30kW), the core loss is higher%.
In terms of econobox EV, they use less powerful motors to reduce cost and weight, the acceleration is capped by torque, but they still want to "defeat" ICE econobox in 0~60(0-100), So they use high torque multiplication ratio to inprove acceleration, making the topspeed 87~112mph(140~180km/h). Cruising at 75mph is definitely higher than the motor "base speed", reducing range a lot.

In order to improve cruising efficiency and topspeed, either use multiple gears(such as 2-speed sequential) both good 0-60 and better topspeed, the cruising efficiency is not that high because the transmission efficiency is slightly lower, or use a lower torque multiplication ratio final drive to increase "base speed", better highway range but poorer 0-60.
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Ladies and gentlemen, I present to you... James May!

ltntai · Feb 8, 2021

That wall of text faded away of my screen like they cut out May's ramblings on TG/GT.
OT: RR brake caliper is misplaced (not because of the accident).

T800COMINGFORU · Feb 8, 2021

Very very true to the real thing... My Camaro parked next to my dads DeLorean at our shop in our town.... Will you add the gas tank flap for the early models? And also the handbrake next to the driver seat? If you need pictures of anything, let me know.

P_enta · Feb 8, 2021

T800COMINGFORU said: ↑

Very very true to the real thing... My Camaro parked next to my dads DeLorean at our shop in our town.... Will you add the gas tank flap for the early models? And also the handbrake next to the driver seat? If you need pictures of anything, let me know.
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Great Scott!

etca1515 · Feb 8, 2021

P_enta said: ↑

Great Scott!
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...and the Back to the future theme plays, once again.

Szymon2007 · Feb 8, 2021

etca1515 said: ↑

...and the Back to the future theme plays, once again.
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lmao

Back2FutureFan6 · Feb 8, 2021

damn nice camaro you got my guy

SuperShep1 · Feb 8, 2021

T800COMINGFORU said: ↑

Very very true to the real thing... My Camaro parked next to my dads DeLorean at our shop in our town.... Will you add the gas tank flap for the early models? And also the handbrake next to the driver seat? If you need pictures of anything, let me know.
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that picture reeks 80's
looks really cool tho

Louie's Workshop · Feb 9, 2021

oh. in the next update can you add nitrous to the engines. I looked for it and there isn't and option for it. (the Agent Overwrite values mod now has an option for engine swaps) if it does come ha ha Gavril tcx go boom in delorean

LucasBE · Feb 10, 2021

PowerstrokeHD said: ↑

oh. in the next update can you add nitrous to the engines. I looked for it and there isn't and option for it. (the Agent Overwrite values mod now has an option for engine swaps) if it does come ha ha Gavril tcx go boom in delorean
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It doesn't have NOS

DaddelZeit · Feb 10, 2021

PowerstrokeHD said: ↑

oh. in the next update can you add nitrous to the engines. I looked for it and there isn't and option for it. (the Agent Overwrite values mod now has an option for engine swaps) if it does come ha ha Gavril tcx go boom in delorean
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You could just add a nitrous slot into the additional modifaction slot, I've already done it but I don't know if I'm allowed to upload the file here

Louie's Workshop · Feb 10, 2021

LucasBE said: ↑

It doesn't have NOS
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i know that. can you please add a slot for it? i don't how how to edit the jbeam for that.

LucasBE · Feb 11, 2021

re-modeling the DeLorean's V6 to look like the real one. This is what it looks like after ~3 days of modeling :

It'll eventually get baked onto a lower poly model and textured properly

Trophy · Feb 11, 2021

LucasBE said: ↑

re-modeling the engine to look like the real one. This is what it looks like after ~3 days of modeling :

View attachment 768896 View attachment 768897

It'll eventually get baked onto a lower poly model and textured properly
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Is this the delorean one?

Back2FutureFan6 · Feb 11, 2021

yeah thats a delorean engine.

P_enta · Feb 11, 2021

Back2FutureFan6 said: ↑

yeah thats a delorean engine.
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Of course back2futurefan knows that

Back2FutureFan6 · Feb 11, 2021

Agent_Y · Feb 11, 2021

LucasBE said: ↑

re-modeling the DeLorean's V6 to look like the real one. This is what it looks like after ~3 days of modeling :

View attachment 768896 View attachment 768897

It'll eventually get baked onto a lower poly model and textured properly
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Can you make it animated like the V8? Because from a certain angle you can see it from outside the car and it REALLY bothers me that it doesn't animate

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