I have no first hand experience with Spintron but I wonder how much the absence of combustion/exhaust pressure affects their results.
Anyone?
Search found 496 matches
- Sun Apr 12, 2020 1:18 pm
- Forum: Engine Tech
- Topic: Spintron
- Replies: 62
- Views: 7228
- Tue Mar 03, 2020 12:47 am
- Forum: Engine Tech
- Topic: Copper head gaskets
- Replies: 13
- Views: 2608
Re: Copper head gaskets
The'll likely leak coolant or oil. I'd return them.
- Sat Jun 22, 2019 12:31 am
- Forum: Engine Tech
- Topic: best "clay" for checking V-P and other combustion chamber clearances.
- Replies: 16
- Views: 3221
Re: best "clay" for checking V-P and other combustion chamber clearances.
In a bind, and if the house is ant-free, Tootise Roll works.
- Tue Mar 26, 2019 9:39 pm
- Forum: Engine Tech
- Topic: Oil groove
- Replies: 13
- Views: 2092
Re: Oil groove
Memory is fading, but don't the air cooled VW engines have long oil groves almost like that?
- Mon Mar 25, 2019 11:10 pm
- Forum: Engine Tech
- Topic: Stop-start engines: durability & wear pattern trends?
- Replies: 19
- Views: 2350
Re: Stop-start engines: durability & wear pattern trends?
Is there a way to delete that operation? I would think wear on the starter would be main issue along with the battery in cold weather. There are multiple ways to disable stop-start, temporarily or permanently. Quick Google addresses that. But most of cars are running it. I see fleet cars, Uber, ren...
- Mon Mar 25, 2019 8:02 pm
- Forum: Engine Tech
- Topic: Stop-start engines: durability & wear pattern trends?
- Replies: 19
- Views: 2350
Stop-start engines: durability & wear pattern trends?
The stop-start feature is far from novelty now, most cars I've been renting lately have it. I makes me think if the greatly increased number of starts indeed shortens the engine life or that was an old wives' tale. Or maybe the OEMs did their diligence beefing up the concern areas. Do you guys see d...
- Tue Mar 12, 2019 12:16 am
- Forum: Engine Tech
- Topic: Block cleaning ?
- Replies: 4
- Views: 1568
Re: Block cleaning ?
Class 8 truck. And then thinking about a rare engine block as well, and on it also can not have any machining other than just glaze breaking . So what engine is it. Class 8 is not much of an answer. But I have to ask why anything more then a dingle ball hone job is permitted?? Are there rules or is...
- Thu Aug 09, 2018 2:11 pm
- Forum: Engine Tech
- Topic: Giving a talk on cam selection, and need your input
- Replies: 57
- Views: 9136
Re: Giving a talk on cam selection, and need your input
Do you have hot cams for Tesla or Chevy Volt?
Sorry man, I couldn't help. I wish I was in the audience of this Cam Talk by Mike. Any chances to be filmed and go to YouTube?
Sorry man, I couldn't help. I wish I was in the audience of this Cam Talk by Mike. Any chances to be filmed and go to YouTube?
- Fri Jul 13, 2018 1:01 pm
- Forum: Engine Tech
- Topic: marine flywheels steel or cast?
- Replies: 3
- Views: 948
Re: marine flywheels steel or cast?
Or can hurt babes sunbathing on the deck.pamotorman wrote: ↑Fri Jul 13, 2018 10:18 am you don't want anything in a boat that can come apart and put a hole in the bottom
- Thu Jun 21, 2018 8:40 pm
- Forum: Engine Tech
- Topic: Water injection
- Replies: 99
- Views: 14232
Re: Water injection
It's a lot to do with the difference between single carbon - carbon bonds and double carbon - carbon bonds. The single bonds are easily broken compared to the double bonds. Higher octane fuels tend to have more double bonds, the auto ignition temperature is higher. In particular the benzene rings(a...
- Thu Jun 21, 2018 6:44 pm
- Forum: Engine Tech
- Topic: Water injection
- Replies: 99
- Views: 14232
Re: Water injection
The basic idea of octane is that it is harder to burn and therefore the burn is slower but that is not how peak HP is made .... up to the point of an uncontrollable burn a higher speed burn does better and will make a higher peak pressure so it is a fine line between to fast and to slow and this is...
- Sat Jun 02, 2018 8:48 am
- Forum: Engine Tech
- Topic: Copper head gaskets on a street motor
- Replies: 16
- Views: 3486
Re: Copper head gaskets on a street motor
I'd seriously rethink your choice. I really tried to make it work on my dragster (SBC 400), but had chronic fluid leaks. The engine decks weren't in good shape (common on SBC 400), but a standard composite gasket solved all the problems. Also, I find the claim that copper gaskets are reusable questi...
- Thu May 31, 2018 7:34 pm
- Forum: Engine Tech
- Topic: Top ring inside bevel / chamfer
- Replies: 33
- Views: 5905
Re: Top ring inside bevel / chamfer
joespanova wrote: ↑Wed May 30, 2018 9:22 pmBecause the box had "HECHO EN ESTADOS UNIDOS" printed on it.Mark O'Neal wrote: ↑Wed May 30, 2018 5:11 pm Aside from which....what makes you think those rings were made in America?
Huh, Brazilians speak Portuguese... not Spanish ("hecho en")...
- Tue May 01, 2018 7:12 pm
- Forum: Engine Tech
- Topic: Stainless steel valves
- Replies: 19
- Views: 4137
Re: Stainless steel valves
Best I know Manley stuff is USA made, They make both 2 piece friction welded and 1 piece forged Highly recommend Forged!! Dave B Think I read they weren't anymore or at least some of the cheaper stuff wasn't. I imagine at this point like most co's they bank on their name so some of the lines are ou...
- Thu Apr 26, 2018 2:27 pm
- Forum: Engine Tech
- Topic: 3D-Printed Pistons
- Replies: 26
- Views: 4183
Re: 3D-Printed Pistons
IMHO, if money availability and capitalism wasn't involved so heavily in our bias.. we'd surely be much further ahead technologically than we currently are. There's often a better way to design or fabricate something.. but when it interferes with our ability to make more money?.. that idea quickly ...