Thermostat - to use or not to use

[RustyRatRod]

64post, I think you and I are on the same page about all of it.....right from the start. I'm just not as familiar with what altitude does to effective compression as you sound like maybe you are. It does make sense though. So, if I fart at say, 15,000 feet above sea level, does it take more fart to stink there than at sea level? I mean really.......isn't that all we really need to know here?

 

[64 Post]

64post, I think you and I are on the same page about all of it.....right from the start. I'm just not as familiar with what altitude does to effective compression as you sound like maybe you are. It does make sense though. So, if I fart at say, 15,000 feet above sea level, does it take more fart to stink there than at sea level? I mean really.......isn't that all we really need to know here?

Yeah, I think we’re on the same page, technically. My basic point is that what runs good at sea level doesn’t at altitude and that some general advice given on a build at sea level doesn’t always work/apply at altitude. I make a point of looking where an OP lives when questions of compression, cylinder pressure, DCR, etc. come up.

I saw a couple guys duplicate exactly a magazine build where the engine was dyno’d and made, let’s say, 450 HP. They dropped the engine/auto trans in their car, took it to the chassis dyno and only put 250 HP to the wheels. Then we argued over why the tranny ate up 45% of their HP. :violent1: