Highest RPMs on AP2 with built head
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From: Barkhamsted
Originally Posted by s2000Junky,Sep 11 2009, 04:50 PM
The pistons don't get forced down harder with the added "forced air" resulting in more power and turn stress. The FI allows more air to be trapped in the combustion chamber on the intake stroke so that more fuel can be added in relation to that added air, which is what creates the added power and stress, its artificially adding more air/fuel mix into the combustion chamber on the intake stroke. More air/ more fuel= more power.
N/A is relying on the vacuum of the piston to draw in the proportional amount of air into the combustion chamber which that size/displacement motor can make/consume. This is why FI is recognized as a engine displacement modification because it allows an otherwise small displacement motor to consume an artificially higher displacement amount of air for its size.
So to re iterate, there is no Forced air pushing down on the piston in any FI set up. Its not whats happening inside the engine. It is simply allowing more air to be consumed into the combustion chamber during the intake stroke so more combustion/explosion can be produced, which is what forces the piston down harder to make more power,
( the combustion!)
I got a headache after reading this but I think i get you.
You stated:
The pistons don't get forced down harder with the added "forced air" resulting in more power and turn stress.
combustion/explosion can be produced, which is what forces the piston down harder to make more power
On the INTAKE stroke, air is being forced in so more air is being trapped in the combustion chamber.
Now, on the POWER stroke, it IS the extra air trapped that when ignited, creates a bigger explosion that forces the piston down harder.
Maybe the same thing you are saying but I did go back a few times to read it.
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Originally Posted by Venomous S,Sep 11 2009, 03:48 PM
On the INTAKE stroke, air is being forced in so more air is being trapped in the combustion chamber.
Now, on the POWER stroke, it IS the extra air trapped that when ignited, creates a bigger explosion that forces the piston down harder.
Trying to keep it simple since some tend to over complicate explanation with mathematical equations etc to seem overly intelligent lol
The myth understanding I heard here was that somehow the actual forced air from the SC/turbo was forcing the piston down for more power or wear. It is not! It is plain & simply added (combustion force)
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Technically the forced air from the SC/turbo WOULD force the piston down on the intake stroke reducing pumping losses and increasing efficiency and as a result power...
just trying to muddy the waters up some more lol
just trying to muddy the waters up some more lol
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Originally Posted by Momentum,Sep 11 2009, 06:18 PM
Technically the forced air from the SC/turbo WOULD force the piston down on the intake stroke reducing pumping losses and increasing efficiency and as a result power...
just trying to muddy the waters up some more lol
just trying to muddy the waters up some more lol
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From: Philadelphia, PA
The pistons don't get forced down harder with the added "forced air" resulting in more power and turn stress. The FI allows more air to be trapped in the combustion chamber on the intake stroke so that more fuel can be added in relation to that added air, which is what creates the added power and stress, its artificially adding more air/fuel mix into the combustion chamber on the intake stroke. More air/ more fuel= more power.
N/A is relying on the vacuum of the piston to draw in the proportional amount of air into the combustion chamber which that size/displacement motor can make/consume. This is why FI is recognized as a engine displacement modification because it allows an otherwise small displacement motor to consume an artificially higher displacement amount of air for its size.
N/A is relying on the vacuum of the piston to draw in the proportional amount of air into the combustion chamber which that size/displacement motor can make/consume. This is why FI is recognized as a engine displacement modification because it allows an otherwise small displacement motor to consume an artificially higher displacement amount of air for its size.
So in essence you proved my point just without knowing it i guess. Not sure what else to tell you your arguing a point that your trying to make not what im talking about lol.
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From: Philadelphia, PA
The myth understanding I heard here was that somehow the actual forced air from the SC/turbo was forcing the piston down for more power or wear. It is not! It is plain & simply added (combustion force) emot-tip-wink.gif
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It puts too much stress on wrist pins
WRONG... more more "forced air" the more force and wear on the wrist pins
Not that it matters the wrist pin would be the last thing (literally) to fail in our engines for any reason.
WRONG... more more "forced air" the more force and wear on the wrist pins
Not that it matters the wrist pin would be the last thing (literally) to fail in our engines for any reason.
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Just recently swapped my F20 for an F22. Still running the AP1 ecu tho. I have seen 9K a few times but only because im used to the extra grand. Im swapping ECUs this week... Just because you can stick a plunger in your ass doent mean you need too.. Honda made it 8k for a reason lol. After one blown motor I dont ever want to do that again lol. 8k for me. Ill just add more power with other parts rather then beating on a stock motor to squeez out a few more HP in the "danger zone"