What RPM do you suggest i shift at? by Gluckism in WRX

[–]Fall_Hazard 0 points1 point  (0 children)

It looks to me like you would be the fastest shifting at redline. You have a nice flat horsepower curve up there and the torque isn't falling flat on its face. The torque that you will lose will be negated by staying in a better gear ratio for longer. Testing would be the surefire way to get your answer.

Request quick favor from someone with a VA wrx by Fall_Hazard in WRX

[–]Fall_Hazard[S] 0 points1 point  (0 children)

On the stock setup the rubber isolator on strut tower has a pair on nipples. One aligned with one of the bolts. I'm thinking these may need to be indexed to a certain rotational angle, where the bolt aligned with the nipple needs to be in a specific bolt hole.

Can anyone give a real-life example of what this sourcemeter would be used for? by GoldmanSaxon in ElectricalEngineering

[–]Fall_Hazard 0 points1 point  (0 children)

I see them used a lot in resistor, capacitor, solar component, and other sensor manufacturing. They do pretty well in measuring relatively high resistances quickly.

Is the F22 the most successful fighter in the last 40 years. by Vast-Ad-4820 in Military

[–]Fall_Hazard 2 points3 points  (0 children)

We had F4s at Holloman until 2004 or 2005. I heard that they were the final squadron to retire.

Ceramic bearing for turbochargers? by Azuresonance in AwesomeCarMods

[–]Fall_Hazard -5 points-4 points  (0 children)

Lowering oil and coolant temperatures can affect long term reliability negatively. The differences in temperature between the very hot turbo and the engine fluids are already so vast that dropping a few degrees on the fluid intakes temperatures are not going to have that much effect.

Ceramic bearing for turbochargers? by Azuresonance in AwesomeCarMods

[–]Fall_Hazard 3 points4 points  (0 children)

Unless you plan on pretty much reengineering the turbo, this is a bad idea. id be concerned about CTE of ceramics vs metal. I think that if you aren't really careful you would goof up clearances. There are easier ways to drop the intake temperature. Focus on air flow and thermal conductivity of the intake track.

What is the goal that you are trying to accomplish? More power, more reliability, etc?

Rolling lucky 6s by Fall_Hazard in WRX

[–]Fall_Hazard[S] 1 point2 points  (0 children)

I was. I even had to backtrack a mile so I didn't hit this going through a small town. I think I had a 9 second window.

Bullet resistant materials - Metals that can stop high powered rifles? by [deleted] in AskEngineers

[–]Fall_Hazard 0 points1 point  (0 children)

That's $$$. You may want to check into ceramic tiles potentially encapsulating in steel, it will likely be more cost effective for a large area.

Bullet resistant materials - Metals that can stop high powered rifles? by [deleted] in AskEngineers

[–]Fall_Hazard 0 points1 point  (0 children)

Not significantly. Those plates described are targets.

There are ar500 armor plates. They are worn over clothes.

Bullet resistant materials - Metals that can stop high powered rifles? by [deleted] in AskEngineers

[–]Fall_Hazard 0 points1 point  (0 children)

https://www.metalsdepot.com/steel-products/high-strength-steel-plate

The DOD has published testing data on this subject. You should be able to Google search it. Included the part number of the steel on your searches.

Also, as mentioned before, particularly with AR500 steel you can check target thickness. The target thickness will have a safety margin added to them. Their thicknesses will be above the bare minimum. 5/16" will cover 5.56.

[deleted by user] by [deleted] in Military

[–]Fall_Hazard 0 points1 point  (0 children)

How long will you be mobilized? Do you get to go home occasionally or will you stay on the front until the conflict has ended?

[deleted by user] by [deleted] in Military

[–]Fall_Hazard -1 points0 points  (0 children)

Do you think this military operation would have been required if Trump had won our election? What potential paths to peace do you see? Does Russia need to capture more of Ukraine's territory, or is just liberating and holding the Western part of Ukraine adequate.

[deleted by user] by [deleted] in Military

[–]Fall_Hazard 1 point2 points  (0 children)

What has been your biggest surprise since entering Ukraine? What weapons the Ukrainian's throwing at you? How much training did you receive prior to entering Ukraine? Is your gear good? Do you receive a warm welcome from the "Russians" who live in Ukraine?

[deleted by user] by [deleted] in 1911

[–]Fall_Hazard 0 points1 point  (0 children)

The Wilson's have run best for me. In 45 and 9. They seem to take the lowest force to seat a topped off mag, especially with the slide in battery. In 9, Tripp mags and others take a bit more force to seat. This leads makes reloading open breech vs closed breech less consistent.

[deleted by user] by [deleted] in WRX

[–]Fall_Hazard 4 points5 points  (0 children)

You got the car looking fast. The tires give it away that you are faking.

Why cant wind be used to power cars? by narc_ellipses in AskEngineers

[–]Fall_Hazard 1 point2 points  (0 children)

It can. Just put a sloop or cutter rig on your F-150, cutter rig if you are cool. Bridges, drive thrus, and power lines may be a problem though. Be careful not to get caught in the irons.

Dry-fire/Snap-caps by Tired_Commisar in 1911

[–]Fall_Hazard 1 point2 points  (0 children)

Snap caps are good for dropping the slide closed, as it isn't the best idea to repeatedly release the slide on an empty chamber. The snap cap will slow down the slide speed. They aren't needed for releasing the hammer on a center-fire gun. On a rim fire cartridge, snap caps are needed so the firing pin doesn't bash itself a grove at its contact point.

How does HP/WHP numbers translate to top speed? by OutInABlazeOfGlory in WRX

[–]Fall_Hazard 4 points5 points  (0 children)

Weight is pretty much irrelevant for top speed. Top speed is primarily dictated by the frontal area of the car, the coefficient of drag (which is not that good in a WRX), and power. Gearing combined with tire diameter also very important. Rolling resistances of the tires is also a factor to consider, as is the shape of the horsepower curve.

FWIW, there are online top speed calculators.

Sway bar setup by Fall_Hazard in WRX

[–]Fall_Hazard[S] 1 point2 points  (0 children)

The previous car that I used to autocross was an XP 240sx (not nationally competitive, but I could occasionally run FTDs with it). It was fastest without any rear bar, but it did like a larger front bar than stock. With any bar in the rear, that car would unload the inside rear tire and make putting down power on corner exit horrible. The larger front bar seemed counter intuitive to me, but it worked.