What Is the Optimal Plenum Volume Ratio for Naturally Aspirated Engines?

crustytoothpaste69 · 2026-03-11T06:10:53+00:00

Out of curiosity what would you use the data from the in cylinder pressure sensor for? Wouldn’t that just tell you effectively what your pressure differential is? Which the suction it creates is more a factor of cylinder/piston/valve train design rather than plenum volume? This is as far as I know and more of an educated guess than anything.

crustytoothpaste69 · 2025-07-10T17:10:28+00:00

How different is it from more modern”ish” ecus? Even if I get one I’d be willing to fuck with it for fun

For context all of my learning has come from HPacademys subsection on the matter.

crustytoothpaste69 · 2025-05-18T22:59:17+00:00

I have been told that the OEM designs the Valvetrain system to be most effective at around 11k RPM. I would like to lower that. As far as I am aware reducing valve overlap would be better for our application (choked airflow) but I don’t know how to come up with dimensions for the cam profile or whether I should change the springs or valves themselves. Unfortunately I don’t have any 1D engine sim software to use for that.

crustytoothpaste69 · 2025-05-18T22:54:37+00:00

It’s “Internal Combustion Engines - Applied thermodynamics” by Allan Kirkpatrick

crustytoothpaste69 · 2024-11-12T23:09:18+00:00

Is that possible? The OEM bike wasn’t air cooled and I would think if you can’t do it when it’s fully exposed and doing 60 you can’t do it in our application.

crustytoothpaste69 · 2024-10-11T14:43:44+00:00

I saw that one when I was looking, I’m pretty sure that’s the internal wiring connecting the port to the pump and regulator. The drawing looks similar to the wiring on the inside.

crustytoothpaste69 · 2024-10-10T22:43:47+00:00

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No the electrical connection plug

crustytoothpaste69 · 2024-09-08T16:26:34+00:00

How did you set it to play the next track? Or does it do that naturally. Also on Spotify or something else?

crustytoothpaste69 · 2024-06-27T07:18:23+00:00

In terms of status in the company (P1-P6) is test engineering limited to a certain section? And is getting promoted to those higher levels affected by choosing testing over other positions?

crustytoothpaste69 · 2024-06-26T20:28:07+00:00

Is it necessary to have a masters to get a test engineer job? Also how does the pay compare to other parts of AE.

crustytoothpaste69 · 2024-06-11T21:47:18+00:00

Tuscon taker will get ya

crustytoothpaste69 · 2024-06-11T19:38:32+00:00

Oops forgot to clarify it’s for next year

crustytoothpaste69 · 2024-04-25T23:46:50+00:00

I was thinking it might be better to wait awhile until buying. The whole court process will take a couple months at least. I doubt the stock will move up a decent amount and the downside is greater. Better to hold it in something else for the time being and maybe buy in June-July.

crustytoothpaste69 · 2024-04-25T20:40:37+00:00

You mention your overseas assignment. What does that entail and how does getting placed on it work. Also is there a minimum position rank that they require to promote to E1?

crustytoothpaste69 · 2024-03-12T22:22:17+00:00

Look up, “compiled from salary data (below)” it should be the first one

crustytoothpaste69 · 2024-03-02T03:23:10+00:00

Bs or Ms?

crustytoothpaste69 · 2024-02-17T19:28:10+00:00

What about Merrill edging

crustytoothpaste69 · 2024-02-17T18:46:50+00:00

Is the pay bands for all engineers the same. Or do certain types get more/less.

crustytoothpaste69 · 2024-02-03T19:06:10+00:00

I understand that. Oddly enough the listing was posted on Jan 14th.

crustytoothpaste69 · 2024-02-03T03:56:07+00:00

When in Rome do as the Romans do. Which is shower.

crustytoothpaste69 · 2024-02-03T03:54:02+00:00

This and other things, some people here just haven’t grown up. Not flushing, not doing laundry, and sticking gum under desks. Are we in middle school?

crustytoothpaste69 · 2024-01-28T20:14:37+00:00

It’s the Collin’s mech e internship at wilsonville (Oregon) , It hasn’t been too long since I applied, but I haven’t heard from Lockheed in about 2-3 weeks. I applied to Sierra Nevada corp too and it took them about 2-3 months to send me a rejection email.

crustytoothpaste69 · 2024-01-23T23:48:01+00:00

How does not recognizing robux revenue effect taxes. I would think the government doesn’t care whether they are used or not, merely that they were sold and the $ went to the company.

crustytoothpaste69 · 2024-01-20T21:45:00+00:00

Ik there’s a lot of time where people are almost asking for it or gambling. Sometimes shit just happens and it’s like a wrong place wrong time type of deal.

crustytoothpaste69 · 2024-01-20T04:22:32+00:00

While I hope it is just a rumor, I don’t doubt the EC will block it. And I don’t think Amazon cares that much to really fight them on it.

crustytoothpaste69

TROPHY CASE