We are currently running on the new domain and server: www.Speed-Talk.com

IMPORTANT: Update your bookmarks to https://www.speed-talk.com/forum/
(Right-click the URL and select "Bookmark this link")

Search found 359 matches

by GRTfast
Wed Oct 30, 2019 8:14 pm
Forum: Electric & Hybrid Vehicle ** NEW **
Topic: Here is how to do it
Replies: 163
Views: 9883

Re: Here is how to do it

https://www.livescience.com/55944-perpetual-motion-machines.html Nice Link GTRfast. A quote from the link Why do people continue to attempt perpetual motion machines when all laws of physics suggest they are impossible? "My hunch is that they are motivated by their incomplete understanding of physi...
by GRTfast
Tue Oct 29, 2019 9:43 pm
Forum: Electric & Hybrid Vehicle ** NEW **
Topic: Here is how to do it
Replies: 163
Views: 9883

Re: Here is how to do it

I guess you didn't see this one. Every electric car needs it. Thermodynamics is for engines not for magnetics which is a form of atomic power #-o Just define the words.......... Thermal ..................... dynamic. Thermal is heat,,,,,,,,,,,,,,,, dynamic is movement all simply stated. Magnets don...
by GRTfast
Tue Oct 29, 2019 3:44 pm
Forum: Electric & Hybrid Vehicle ** NEW **
Topic: Here is how to do it
Replies: 163
Views: 9883

Re: Here is how to do it

exhaustgases wrote:
Thu Oct 24, 2019 11:47 pm
I guess you didn't see this one. Every electric car needs it.
Thermodynamics is for engines not for magnetics which is a form of atomic power
#-o
by GRTfast
Wed Oct 23, 2019 6:49 pm
Forum: Engine Tech
Topic: Artificial Intelligence to Design Lightweight Parts
Replies: 51
Views: 2177

Re: Artificial Intelligence to Design Lightweight Parts

GARY C wrote:
Sat Oct 19, 2019 11:57 pm

Not baiting anyone..
:^o
by GRTfast
Tue Oct 22, 2019 11:52 am
Forum: Offtopic Forum
Topic: C8 Corvette
Replies: 5
Views: 365

Re: C8 Corvette

Looks pretty cool. Bang for the buck it is going to be hard to beat. I'm sure someone at work will have one soon. Pretty excited to see and hear one in person.
by GRTfast
Wed Oct 16, 2019 8:01 pm
Forum: Electric & Hybrid Vehicle ** NEW **
Topic: not all that glitters....
Replies: 5
Views: 384

Re: not all that glitters....

https://dailycaller.com/2019/04/24/tesla-carbon-dioxide-mercedes . things get more interesting when you actually go further than the tail pipe to see what is a polluter. Baby steps. One day we will get all of our power from the 1 million mile in diameter nuclear fusion reactor in the sky that is ba...
by GRTfast
Tue Oct 08, 2019 6:59 am
Forum: Engine Tech
Topic: Edelbrock "Air Gap" clones
Replies: 15
Views: 1157

Re: Edelbrock "Air Gap" clones

bobmc wrote:
Tue Oct 08, 2019 6:51 am
you see manifolds advertised as "permanent mold", what does that mean? and is it better than sand cast?
The mold is made from steel or ceramic or something like that, and isn't destroyed after one use. I'm not sure how to quantify which one is "better".
by GRTfast
Wed Oct 02, 2019 7:00 am
Forum: Engine Tech
Topic: When are you switching to synthetic?
Replies: 79
Views: 3463

Re: When are you switching to synthetic?

digger wrote:
Tue Oct 01, 2019 11:19 pm
The ICE is a bandaid
:lol:

Best post in the thread.
by GRTfast
Sun Sep 29, 2019 8:49 pm
Forum: Engine Tech
Topic: Service Life of Steel H-Beam Rods
Replies: 31
Views: 1538

Re: Service Life of Steel H-Beam Rods

i'm not sure what you mean but whatever sinusoidal tensile load that the rod is subjected to throughout a cycle the bolt will see about 1/4 the magnitude would be my guess based on relative stiffness's If the bolt preload is above the tensile load on the rod, the load on the bolts will barely incre...
by GRTfast
Sun Sep 29, 2019 7:38 pm
Forum: Engine Tech
Topic: Service Life of Steel H-Beam Rods
Replies: 31
Views: 1538

Re: Service Life of Steel H-Beam Rods

thats not true they see every acceleration event at TDC regardless of the preload so they are subjected to a variable tensile load which can fatigue them, its just not the full amount of tension when preloaded and designed correctly The entire bolt sees (essentially) the same load from acceleration...
by GRTfast
Sun Sep 29, 2019 6:23 pm
Forum: Engine Tech
Topic: Service Life of Steel H-Beam Rods
Replies: 31
Views: 1538

Re: Service Life of Steel H-Beam Rods

How many re-torques are too many ? When you mic. (measure the length of the bolt) when it is new, it will be a given length. Each time you remove the rod bolt at disassembly you measure it/them. When the bolt does not check to its original new length it is said that the bolt has yielded (to give up...
by GRTfast
Sun Sep 29, 2019 8:45 am
Forum: Engine Tech
Topic: Service Life of Steel H-Beam Rods
Replies: 31
Views: 1538

Re: Service Life of Steel H-Beam Rods

How many re-torques are too many ? When you mic. (measure the length of the bolt) when it is new, it will be a given length. Each time you remove the rod bolt at disassembly you measure it/them. When the bolt does not check to its original new length it is said that the bolt has yielded (to give up...
by GRTfast
Sat Sep 28, 2019 4:27 pm
Forum: Engine Tech
Topic: Service Life of Steel H-Beam Rods
Replies: 31
Views: 1538

Re: Service Life of Steel H-Beam Rods

This makes a ton of sense to me. Is the conclusion then: If the stress is below that limit, never replace steel rods unless there’s a specific reason. Yes. The kicker is, how well does one understand the actual stress state a rod is subjected to? Since it’s mostly an issue of tension, isn’t that a ...