10,199 reputation
21952
bio website stackoverflow.com/users/5812/…
location Rhode Island
age 46
visits member for 3 years, 1 months
seen 3 hours ago

Computer scientist working at [A Facility] developing [Systems] that [Do Stuff] at [Places].

Daily driver: 2004 Subaru Impreza WRX hatchback


Dec
16
comment Catalysator broken? Odd rope coming out of the exhaust pipe
Just to clarify your answer, are those filaments in the original picture coming out of the tail pipe (as labeled in the diagram)? If so, you're likely looking at material from the resonator. If you remove the resonator and the filaments are still coming out of the connecting pipe, you're probably looking at material from the resonance chambers in the muffler.
Dec
16
comment Engine repeatedly dies at shorter and shorter intervals this cold morning, finally won't start
If this solved your problem, you should accept your own answer to your question - this will help leave a trail of breadcrumbs for the next person who has the same problem.
Dec
15
comment Catalysator broken? Odd rope coming out of the exhaust pipe
@hhh, if this is some of the sound deadening material from inside the muffler then, no, this isn't a big job nor does it affect emissions. A muffler replacement would solve the problem. In fact, when removing the muffler, you'll be able to see exactly where those filaments are coming from.
Dec
13
comment 1993 Mazda MVP gets hot only when pressing on accelerator
See also the following questions: mechanics.stackexchange.com/q/4805/57, mechanics.stackexchange.com/q/5003/57 and mechanics.stackexchange.com/q/7972/57
Dec
13
comment How much should I inflate my tire?
@Compro01, Good point - I'll add that above.
Dec
12
comment What tools are needed for removing rusted bolts?
@R.., I think you're moving into step 4: "Hell if I know. What do you think we should do?"
Dec
9
comment Damage to Audi differential with new front tires and old rear tires
You could probably get your hands on the actual service recommendations for your vehicle. Shop manuals aren't necessarily cheap but they can be had. Another point to consider is that, while traction might continue to be fine, mismatched sets of tires are putting more load on the center diff. Maybe not enough to fail but definitely enough to increase wear and shorten its life.
Dec
9
comment problem with overheating and heater core in 1998 Subaru Forester
Based on your edit above, this didn't solve the problem - any other information?
Dec
8
comment problem with overheating and heater core in 1998 Subaru Forester
So the radiator swap mentioned below didn't solve the problem long term?
Dec
4
comment Assuming identical and sufficient ABS, and ignoring aerodynamics, are tires the only factor for braking distance?
The critical quote from the Wikipedia article was "Conventional pneumatic tires do not behave as classical friction theory would suggest." The missing "slip angle" column is also important: the horizontal force in the example is a cornering force, not a braking force. You're still confusing the two types of classical friction due to the use of ABS: it's not enough to say "sufficient braking power to lock the wheels" as that would just be a skid.
Dec
2
comment Assuming identical and sufficient ABS, and ignoring aerodynamics, are tires the only factor for braking distance?
@andrewb, actually that fade is specifically part of the comparison. As mass and speed increase, brake fade may start to affect the very first stop (especially on the fronts). Stopping distances may take a huge jump. Regardless, brake fade is a real problem when driving with overloaded vehicles in the real world.
Dec
2
comment Assuming identical and sufficient ABS, and ignoring aerodynamics, are tires the only factor for braking distance?
Sorry, I won't be changing the answer to be incorrect. I will add an experimental procedure for you to try to the answer, though.
Dec
2
comment Assuming identical and sufficient ABS, and ignoring aerodynamics, are tires the only factor for braking distance?
@andrewb, I've addressed your comments in the answer. Read the Physics of Racing (see the link). Brian Beckman discusses many of your points in detail. The brutal reality is that your physics assumptions are over-simplified: a car is not a simple system and, no, it's not just a tire competition. If it were, all cars using the same tire would stop at the same rate (and they don't).
Nov
27
comment How can I repair cracks in leather seat?
Those are some great before and after shots. Have you tried the patch pieces before? They look promising.
Nov
26
comment What is a GB in this part diagram?
@Aerovistae, he's cheating - the Subaru owners in the audience know that they all look the same under the hood ;-)
Nov
26
comment muffler positioning, and x-flow for specific sound
In theory, point 1 should follow from point 2 (assuming the engine's in good shape). Have you looked at the layout of the original exhaust? You are going to be somewhat bound by the layout and geometry of the components under the body. You won't have a blank sheet to draw arbitrary shapes of piping. What is the problem with matching the original layout with new piping?
Nov
23
comment weird noise when I use the clutch
FYI: my 2004 WRX has whined at me in exactly this way for the last 100,000 miles. Mike is right about what's making the noise but, at the same time, it might turn out not to matter. Keep an ear on it.
Nov
22
comment Suzuki Sidekick Radio Ground Wire Location
@Dean, it's pretty unlikely that it was just wedged - it's more likely that there is a matching connector wandering around inside your console.
Nov
20
comment At what level does low oil prevent vtec from working?
It would help if you let us know exactly which vehicle and engine you have.
Nov
19
comment What is a good strategy for adding performance upgrades in phases to a 2013 Mazda 3?
"little difference" is right: check the altitude listed above.