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Discussion in 'General Supra Topics' started by Goose, Jul 23, 2019.
Pump Gas 93oct numbers on our EFR9280 Supra....... 550whp on mustang dyno equates to about 615-620whp on a dynojet.
Running so nice numbers here keep up the good work.
I just came across this article/video. It's not clear how much horsepower and torque this guy's MKV is pushing (I skipped the 370Z section of the video and went straight to the MKV section so maybe he said something I missed) but this is curious to me: just how strong are the MKV's rear axles and just how strong is its stock rear differential?
Even the 200mm MKIV diff and TT Automatic axles are known to be very stout out of the box aside from the limitations of the stock open diff and stock Torsen T-1 diff.
He says he replaced the rear axles with stronger ones on his MKV prior to his diff blowing out. Perhaps the diff casing itself is plenty strong but it's the differential itself that needs to be changed out for an aftermarket clutch type unit?
This second video only discusses the MKV's rear diff failure (following his drag launch under who knows how much boost) for the first five minutes.
Big turbo (G30-770), Nitrous out the whole and slicks
Stock axles snapped, he changed them to upgraded ones at the track then it looks like the diff then gave out right after
Slicks and high torque.. Yes I'd be worried
Kinda funny, the 600whp/torque range is the same range where the mk2 Supras 7.5 diff (with a trutrac and upgraded axels) and axel stubs about reach their limit.
Tried to do a dyno run today with a friend
2 different Supra's followed video instructions
Car does not hold gear, multiple codes after..
Tried clearing and kept getting chassis error back on both cars after a short drive
Disconnected battery and code went away
Now headlight is out of alignment
Headlight is easy. There is a sensor that clips into the driver's side control arm and is probably knocked out from them strapping it down.
Are you not putting the car in manual mode on the dyno? Are you in dyno mode when on the dyno?
the issue with the mkv axles is that they are hollow... many thought they were far stronger than they actually are because the shaft diameter is fairly large, but that was assuming solid shaft.
either way, you're gonna break stuff at 600wtq+ when you're hitting that figure as fast and hard as this car.
Unless you know, it's a car built by a manufacturer that's known for overbuilding things, and maybe had built a few cars like this in the past, so knew enough to over build their newest version to the point it can handle 1000whp/torque from the factory. Maybe thats just a myth (legend?)...
Sensor is in place.. Even unplugged it and plugged back again. Still pointing upwards
Yes, dyno mode, dsc off and manual
On both cars
Rear headlight level senor was broken
Zipped tied it until I could order one tomorrow
No more chassis code
Guys.. Part is not available and needs to be ordered from Japan
Both cars have the same exact sensor broken
Just a heads up for anyone willing to dyno at a shop not familiar with the car
Chassis error code, headlights alignment issues and very stiff suspension
Parts ordered from Japan??!! Toyota part located?