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Re: Building a 10,000 rpm NA engine.
Quote:
Originally Posted by oab_au
Not easy to grasp. 
When I load a .38 bullet case, I use a certain amount of powder, If I want to get more velocity, without using more powder, I just push the projectile back down into the case further, to reduce the space that the powder is in. This gives a higher pressure, due to the higher expansion pressure.
The cylinder is the same, you have a 550cc volume of fuel, if we squeeze this volume into a smaller combustion space, the expansion pressure is increased, so the torque is higher.
The torque does not increase as the rpm increases, the resultant torque remains the same.
Harvey. |
Hi Harvey,
I accept most of what you say, except I think most people believe that there is some increase in cylinder fill as a result of the higher cylinder pressure.
Do you think there is a higher fill level from higher compression?
Tony
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1995 - SVX 700,000 K Mine, DMS Struts to lift car 2in. Tyres Wrangler Silent Armor 235/70R16, PBR Radiator. 6 speed with DCCD and R180 rer diff, Heavy duty top strut mounts front and rear. Speedo correction box fitted. New stero (gave up on the old one). Back seat removed and 2 spare tyres fitted for desert driving. ECUTune SC sitting in the box for the next SVX.
1992 - SVX 255 K Wife (Want to stay Married so not allowed to fit SC)
1992 - SVX Pearl with black roof race car roll cauge etc ready to race. Ex Tasman Targa car.
1995 - SVX Green low k mint condiation.
1995 - SVX Rally car, ex Matts car. Now to be used on track.
1992 - SVX red & Black being converted to Mid Engine.
1995 - SVX Red 143,000 bit rough.
Owned 5 others Subaru back to a 1974 1400 GSR.
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