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Jun
6
awarded  Popular Question
Apr
30
revised What exactly is OBD Calculated Load?
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Apr
30
revised What exactly is OBD Calculated Load?
added 479 characters in body
Apr
30
answered What exactly is OBD Calculated Load?
Apr
17
awarded  Yearling
Apr
15
comment Why hasn't anyone beat the 6:11:13 Nürburgring Record set in 1983?
Here's an Ariel Atom 500 V8 doing a 9:12 (driven by a non racer), weighing 550kg youtube.com/watch?v=DZeLhwJanqw
Apr
15
comment Why hasn't anyone beat the 6:11:13 Nürburgring Record set in 1983?
The 2007 Radical SR8 LM weighs 650kg, 200kg less than the 850kg Porsche 956 and did 6:48. gtplanet.net/forum/threads/radical-sr8-lm-2007.319848
Apr
15
comment Why hasn't anyone beat the 6:11:13 Nürburgring Record set in 1983?
What do you mean 'allowed to make an attempt'? Many cars are brought to the Nürburgring just for 'testing' purposes and their time is recorded, I suspect with some fee any vehicle can be arranged to make a timed lap. Have any cars that could potentially beat the 956's record been verifiably denied the ability to run a timed lap? Also, I'm curious what modern production/prototype cars (non-F1) should/would/could beat the record.
Apr
15
awarded  Popular Question
Apr
15
comment Why hasn't anyone beat the 6:11:13 Nürburgring Record set in 1983?
Do you have a source for the ground effects claim? A team that self admittedly "barely understood" ground effects made ground effects better than are done today in all hypercars with computer modeling and tested in wind tunnels ad nauseum with a much richer understanding of what they even are? I think @Zaid is onto something with mm level clearances, but I'm looking for a reputable source.
Apr
15
comment Why hasn't anyone beat the 6:11:13 Nürburgring Record set in 1983?
Groud Effects is certainly why they beat the other competitors in 1983, @Zaid. However, we have more advanced wind tunnels, better computer modeling and a much deeper understanding of Ground Effects now, so why can't any car come close (with equal or better ground effects in addition to carbon fiber, carbon fiber brakes [lighter and more braking force], better engines and fueling tech, etc...)? 2015 ground effects > 1983 ground effects.
Apr
15
asked Why hasn't anyone beat the 6:11:13 Nürburgring Record set in 1983?
Mar
23
comment Why do open differentials drive the wheels on the ground when a vehicle drives on two?
Ultimately I think a preponderance of the available evidence points to a semi-engaged parking brake with the TJ in RWD. This is in keeping with the 'tradition' of renting a car and bearing on it (unmodified). I suspect they either disconnected the right side (doubtful) or they explored the effect of the parking brake exerting more force on the wheel it could stop than the one that is being forced to rotate, this the engine torque takes the path to the ground. Care to write this up as a second answer with this reasoning and process that eliminated the other possibilities?
Mar
20
reviewed Reject Should I resurface or replace my rotors everytime I replace brake pads?
Mar
19
comment Why do open differentials drive the wheels on the ground when a vehicle drives on two?
That's only if you're concerned with safety. The people in this video are clearly not at all, and multiple sources have indicated that these vehicles are typically rented.
Mar
19
comment Why do open differentials drive the wheels on the ground when a vehicle drives on two?
The thing I'm left with is perhaps they engaged the parking brake in the rear, and either disconnected the right one or exploited the fact that the weak brake shoes could actually stop the airborne wheel, but were exerting less force on the wheel on the ground as the inertia kept it spinning anyway.
Mar
19
comment Why do open differentials drive the wheels on the ground when a vehicle drives on two?
FJs come three ways: RWD, Part time 4WD (selectable between 4WD and RWD), and Full time 4WD (aka AWD), let's assume this model was 4WD in RWD mode. Traction control will pulse the brakes when it detects wheelspin, but then free up to allow the wheel to come up to speed again. With TC I would expect the wheel to be spinning up again and again before the brakes engage: TC does not (and typically cannot) lock up your brakes and leave them locked.
Mar
19
asked Why do open differentials drive the wheels on the ground when a vehicle drives on two?
Feb
25
reviewed Approve 04 Ford mustang has no bass
Feb
16
reviewed Approve Is it OK to mix oil of different viscosity?