5.14.2 Other than engine sump breather gases, exhaust gas recirculation, and fuel for the normal
purpose of combustion in the engine, the spraying of any substance into the engine intake air
is forbidden.
Would that get scuppered by the rule stating no variable valve timing? I'd guess not, as it's not variably timed.roon wrote: ↑03 Nov 2017, 21:46Any idea if EGR has been used in this formula? I've never seen anything that looks like EGR pipes in any of the PU photos. I was thinking that an intake camshaft with more-complex lobe profiles could permit to open the intake valves slightly during the expansion or exhaust stroke in order to fill the intake runners with a small amount of exhaust gas. Others have suggested here that retaining residual exhaust in-cylinder could achieve the same effect.
5.14.2 Other than engine sump breather gases, exhaust gas recirculation, and fuel for the normal
purpose of combustion in the engine, the spraying of any substance into the engine intake air
is forbidden.
How could they possibly cool to something below ambient? Is there a compressor involved?godlameroso wrote: ↑10 Jan 2018, 19:33According to this they can cool the intake charge below +10 degrees ambient, wonder if that's why the rules state IAT must be 10+ degrees above ambient. I wonder if they wanted a heat exchanger arms race because this is how you get one. If these intercoolers are that efficient, then they can be sized smaller and smaller in order to meet the 10+ ambient requirement. Which has obvious benefits.
They also say that using microtubes saves on cost because there's no welding, but I can't imagine these are cheap either.
Passive vortex tubes.hurril wrote: ↑10 Jan 2018, 19:51How could they possibly cool to something below ambient? Is there a compressor involved?godlameroso wrote: ↑10 Jan 2018, 19:33According to this they can cool the intake charge below +10 degrees ambient, wonder if that's why the rules state IAT must be 10+ degrees above ambient. I wonder if they wanted a heat exchanger arms race because this is how you get one. If these intercoolers are that efficient, then they can be sized smaller and smaller in order to meet the 10+ ambient requirement. Which has obvious benefits.
They also say that using microtubes saves on cost because there's no welding, but I can't imagine these are cheap either.
Do you think these coolers use that?Zynerji wrote: ↑10 Jan 2018, 19:55Passive vortex tubes.hurril wrote: ↑10 Jan 2018, 19:51How could they possibly cool to something below ambient? Is there a compressor involved?godlameroso wrote: ↑10 Jan 2018, 19:33According to this they can cool the intake charge below +10 degrees ambient, wonder if that's why the rules state IAT must be 10+ degrees above ambient. I wonder if they wanted a heat exchanger arms race because this is how you get one. If these intercoolers are that efficient, then they can be sized smaller and smaller in order to meet the 10+ ambient requirement. Which has obvious benefits.
They also say that using microtubes saves on cost because there's no welding, but I can't imagine these are cheap either.