Coolant on the pavement would be bad.
Scott, I think you are confusing water/meth injection with an intercooler sprayer. Many WW2 aircraft had water/meth injection (P47, Corsair, Hellcat, ME109, etc.). However I don't know of any that had an intercooler sprayer.
These two things are similar in that they both spray liquid, however they are totally different in purpose. I know you know the difference but lets have a quick review for the less informed.
An intercooler sprayer sprays liquid onto the intercooler making it more effective, thus increasing power. It's a very simple device, usually just a tank, an on/off switch, a pump, hose and spray nozzles.
A water/meth injection system sprays liquid into the compressor discharge air (typically after the intercooler) to help internal cooling in the combustion chamber. By itself this does not increase power but it does provide tremendous protection against detonation. Of course this allows more boost and or timing and that's where the extra power comes from. A water/meth system is far more complex because the amount of liquid injected needs to be fairly close to a constant percentage of the fuel injected. In other words with a given liquid to fuel ratio, say .3:1 when the engine doubles its fuel usage as it would between 3000rpm and 6000rpm the water/meth injection system must be able to double its output to keep the .3:1 ratio constant.
Greg Gordon,
www.hiperformancestore.com
Greg,
I thought there were intercooler (external) sprayers on WWII fighters for some reason, guess I was wrong there. I thought those systems used methanol as an anti- freeze and for commonality with the internal spray mix.
They do use intercooler sprays on air racers....I know that one for sure.
Scott
I thought there were intercooler (external) sprayers on WWII fighters for some reason, guess I was wrong there. I thought those systems used methanol as an anti- freeze and for commonality with the internal spray mix.
They do use intercooler sprays on air racers....I know that one for sure.
Scott
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Greg Gordon
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la_strega_nera
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Greg Gordon
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Yup, and at very low RPM. Those Merlins as well as all the other WW2 V12s were very advanced. Most had 4 valves per cylinder, supercharging or turbocharging (sometimes both), water/meth injection, fuel injection, nitrous oxide, and so on. I think if the Germans were not hamstrung with low Octane fuel the Diamler DB601 and 605 could have dominated.
Of course now we are in danger of getting way off topic. But at least we can all agree Nissar's car is cool.
Greg
Of course now we are in danger of getting way off topic. But at least we can all agree Nissar's car is cool.
Greg