0-30 feels dramatically faster after my boost purchase. We’re you towing something?
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For AWD owners wanting a P3D-
- Thread starter Urbancowboy
- Start date
Similar but far from identical. The entire top-right quadrant of the inverter board is different (if you assume the board is rotated 90˚ CCW.)
We also haven't seen the reverse side of the board, which appears to be where the MOSFETs are mounted. That's probably the biggest difference.
https://epc.tesla.com/#/systemGroups/47412
they have both a 680 and 800 mosfet rear drive assembly listed. Do with this info what you'd like
they have both a 680 and 800 mosfet rear drive assembly listed. Do with this info what you'd like
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Yep. Thanks. I think it says 630, not 680. But if we look at the can data there is already more than 670A peak going to the rear unit in the AWD (assuming that the 630 and 800 refers to amps).
There is also some information in the non-english manuals (here from the German one) - I should probably read the ECE R85 testing methods.
I don't know what is going on with the voltages there - especially the one for the performance rear.
If I remember correctly then with the Acc Boost for AWD they actually lowered the rear peak with about 10kW while increased the front to the same as the Performance (and I think the can data showed that before acc. boost there was very little difference on the peak power on the rear - like 10kw)
But I'm guessing we will see some more youtube videos with hardware comparisons between the 990 and 980 now.
Was just interesting to see now that they finally opened it up, as the 990vs980 discussion has taken up the last 100 pages of this thread.
I actually assume it has to do with the MOSFET model .... the IRF630 is a pretty well known, 200V MOSFET....
Ah yes. That would make sense! Let me see if I can find the datasheets then. Do you know the difference?
Does your crystal ball have any info on the chances of AWD non-P cars getting a full software unlock to P levels? Hopefully at least the 980 motor cars.
May not even be a cost issue, but a supply one ... I don't pretend to be an auto manufacturer logistics expert, but second-sourcing MOSFETs for example may be the issue.
As far as I can see the IRF630 and 800 are different voltages, so not sure about that as it would probably very different board layouts.
This is btw the company that makes them for the model 3 it seems: https://www.systemplus.fr/wp-conten...iC_Module_Tesla_Model_3_Inverter_sample-3.pdf and Is Tesla's production creating a SiC MOSFET shortage?
This is btw the company that makes them for the model 3 it seems: https://www.systemplus.fr/wp-conten...iC_Module_Tesla_Model_3_Inverter_sample-3.pdf and Is Tesla's production creating a SiC MOSFET shortage?
Knightshade
Well-Known Member
Same info we've known from the start. AWDs made 2018 and early 2019 with 980s are hardware identical to the P3D-
AWDs made mid-2019 and newer with 990 motors aren't.
This is true.
Also, have never seen anything definitive that proves the 990 is not capable of the current output of the 980
I suspect we never will know for certain.
Knightshade
Well-Known Member
If it were just as capable- and it's not any cheaper/easier to make- why does the 990 exist at all?
If it were LESS capable, and not any cheaper/easier to make- same question- why would it exist at all?
If it were just as capable and it IS cheaper/easier to make- why do they still put 980s in the P instead of cheaper-but-just-as-capable 990s? Why would they not simply replace the 980 with the 990 period?
The only thing that fits the facts is if the 990 is cheaper AND less capable.
So...can I continue bitching for a full P matching upgrade at this point or too soon? lol
M109Rider
Active Member
This does not look good for those (me for instance) with 980 motors getting the option to go from boost to performance. It can be done, but is just not likely now, because they would have a tough time explaining why anyone with a 990 can’t...
I’m sure the change was financially important, but it does remove a financial upgrade at the same time.
I’ll assume they have decided that it would save more money using the 990’s, than they would gain by sticking with 980’s, and offering an on going upgrade path for owners to performance.
Knightshade
Well-Known Member
glass half full...
...glass half empty...
I'm kinda torn.
On the one hand offering the full unlock to 980 AWD cars is free money for Tesla... AND it avoids "hurting" future P sales because it's made clear future AWD owners won't have it available to them.
OTOH you end up with newer 990 AWD owners upset about...not having an option...that they never were told they'd have... but somehow still mad because that's how people are.
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