ap1 9k rpm, ap2 8k rpm why is that?
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From: garland, tx, usa
ap1 9k rpm, ap2 8k rpm why is that?
hi,i just want to know how come ap1 have 9000 rpm redline but ap2 only have 8000 rpm redline
thank!
Modified by accord03coupe at 8:46 AM 3/24/2007
thank!
Modified by accord03coupe at 8:46 AM 3/24/2007
shit post warrior
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From: Socal, CA
Re: ap1 9k rpm, ap2 8k rpm why is that? (accord03coupe)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by accord03coupe »</TD></TR><TR><TD CLASS="quote">hi,i just want to know how come ap1 have 9000 rpm redline but ap2 only have 8000 rpm redline
thank!</TD></TR></TABLE>
It's due in large part to physics.
thank!</TD></TR></TABLE>
It's due in large part to physics.
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From: PUTTIN UR MOUTH ON CURBZ CPT, SoCal
Re: ap1 9k rpm, ap2 8k rpm why is that? (ITRbroham)
d00d now i know how AP2 guys feel... my evo only rev 7k an dit comes fast... 
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. Projekt »</TD></TR><TR><TD CLASS="quote">Same reason why H22s have a lower redline than B18s.</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. Projekt »</TD></TR><TR><TD CLASS="quote">Same reason why H22s have a lower redline than B18s.</TD></TR></TABLE>
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From: Irvine, CA, USA
Re: ap1 9k rpm, ap2 8k rpm why is that?
It looks like no one wants to give him a more specific answer?
To get that extra displacement they've increased the stroke. Longer stroke = longer piston travel = higher mean piston speed and acceleration at equal RPM = lower redline to compensate, or else ---> higher load (and side-load from piston to wall) = more prone to failure
Example: 99mm stroke k24's rev to ~7k; aftermarket k24's rev to 7.5k, the risk takers (who may have also modded their rotating assembly) are the ones pushing them much beyond 8k
To get that extra displacement they've increased the stroke. Longer stroke = longer piston travel = higher mean piston speed and acceleration at equal RPM = lower redline to compensate, or else ---> higher load (and side-load from piston to wall) = more prone to failure
Example: 99mm stroke k24's rev to ~7k; aftermarket k24's rev to 7.5k, the risk takers (who may have also modded their rotating assembly) are the ones pushing them much beyond 8k
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From: never never land
Re: ap1 9k rpm, ap2 8k rpm why is that? (archmage)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by archmage »</TD></TR><TR><TD CLASS="quote">It looks like no one wants to give him a more specific answer?
To get that extra displacement they've increased the stroke. Longer stroke = longer piston travel = higher mean piston speed and acceleration at equal RPM = lower redline to compensate, or else ---> higher load (and side-load from piston to wall) = more prone to failure
Example: 99mm stroke k24's rev to ~7k; aftermarket k24's rev to 7.5k, the risk takers (who may have also modded their rotating assembly) are the ones pushing them much beyond 8k</TD></TR></TABLE>
f22c can rev to 9k, some have done it.
To get that extra displacement they've increased the stroke. Longer stroke = longer piston travel = higher mean piston speed and acceleration at equal RPM = lower redline to compensate, or else ---> higher load (and side-load from piston to wall) = more prone to failure
Example: 99mm stroke k24's rev to ~7k; aftermarket k24's rev to 7.5k, the risk takers (who may have also modded their rotating assembly) are the ones pushing them much beyond 8k</TD></TR></TABLE>
f22c can rev to 9k, some have done it.
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From: Orange County, CA, USA
Re: ap1 9k rpm, ap2 8k rpm why is that? (Francesco)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Francesco »</TD></TR><TR><TD CLASS="quote">
f22c can rev to 9k, some have done it.</TD></TR></TABLE>
f22c can rev to 9k, some have done it.</TD></TR></TABLE>
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From: I Dont Care How They Do It In Japan...
Re: ap1 9k rpm, ap2 8k rpm why is that? (HondaKyle)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaKyle »</TD></TR><TR><TD CLASS="quote">they stroked the motor ...but its only like that over here japan doesnt thave the 2.2</TD></TR></TABLE>
They do now.....
They do now.....
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From: south texas
Re: ap1 9k rpm, ap2 8k rpm why is that? (S2SLOW)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by S2SLOW »</TD></TR><TR><TD CLASS="quote">
They do now..... </TD></TR></TABLE>
haha i was gonna say they suck then
They do now.....
</TD></TR></TABLE>haha i was gonna say they suck then
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From: West Chester, Pa, USA
Re: ap1 9k rpm, ap2 8k rpm why is that? (archmage)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by archmage »</TD></TR><TR><TD CLASS="quote">It looks like no one wants to give him a more specific answer?
To get that extra displacement they've increased the stroke. Longer stroke = longer piston travel = higher mean piston speed and acceleration at equal RPM = lower redline to compensate, or else ---> higher load (and side-load from piston to wall) = more prone to failure
</TD></TR></TABLE>
To get even more specific I believe the f20 has an 84mm stroke and the f22 has a 90.7mm stroke
To get that extra displacement they've increased the stroke. Longer stroke = longer piston travel = higher mean piston speed and acceleration at equal RPM = lower redline to compensate, or else ---> higher load (and side-load from piston to wall) = more prone to failure
</TD></TR></TABLE>
To get even more specific I believe the f20 has an 84mm stroke and the f22 has a 90.7mm stroke
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Re: ap1 9k rpm, ap2 8k rpm why is that? (S@nt0s)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by S@nt0s »</TD></TR><TR><TD CLASS="quote">d00d now i know how AP2 guys feel... my evo only rev 7k an dit comes fast...
</TD></TR></TABLE>
my evo revved to 7800
</TD></TR></TABLE>my evo revved to 7800
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From: Eindhoven, Netherlands
Re: ap1 9k rpm, ap2 8k rpm why is that? (Francesco)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Francesco »</TD></TR><TR><TD CLASS="quote">
f22c can rev to 9k, some have done it.</TD></TR></TABLE>
By designing for fatigue, we get something that can handle 10x more stress than it's ever supposed to see. This means I wouldn't be surprised it you can rev the engine to 15000rpm....a couple times. The trick is, engines are designed to last for many, many cycles...hundreds of hours at maximum stress. This means you get that warm fuzzy feeling of knowing you can rape your motor all you want, as fast as you want...and it won't blow. That is Honda reliability.
That is, unless you're exceeding the redline. If you do, I suggest you have a spare motor laying around so that you won't be stressing out too much every time you do it. And stress out you will, because by exceeding the redline you have effectively thrown that security out the window and turned your engine into a ticking time bomb. It will no longer last hundreds of hours. It will last less... a simple function of how much you exceeded the redline X how long. So when you do it, be aware that it's just counting down until it blows. And blow it will...and NOT after the factory intended hundreds of hours.
But hey, you only live once
f22c can rev to 9k, some have done it.</TD></TR></TABLE>
By designing for fatigue, we get something that can handle 10x more stress than it's ever supposed to see. This means I wouldn't be surprised it you can rev the engine to 15000rpm....a couple times. The trick is, engines are designed to last for many, many cycles...hundreds of hours at maximum stress. This means you get that warm fuzzy feeling of knowing you can rape your motor all you want, as fast as you want...and it won't blow. That is Honda reliability.
That is, unless you're exceeding the redline. If you do, I suggest you have a spare motor laying around so that you won't be stressing out too much every time you do it. And stress out you will, because by exceeding the redline you have effectively thrown that security out the window and turned your engine into a ticking time bomb. It will no longer last hundreds of hours. It will last less... a simple function of how much you exceeded the redline X how long. So when you do it, be aware that it's just counting down until it blows. And blow it will...and NOT after the factory intended hundreds of hours.
But hey, you only live once
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From: Somewhere in, IL, United States
Re: ap1 9k rpm, ap2 8k rpm why is that? (Lsos)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lsos »</TD></TR><TR><TD CLASS="quote">
I'm sure it can. I wouldn't be surprised if you can rev it to 15000rpm. Hell, I had a GSR motor at 12000rpm.
That just the nature of designing for fatigue....you end up with something that can handle 10x more stress than it's ever supposed to see. But, it will be able to do it millions of times, for hundreds of hours. This means you get that warm fuzzy feeling of knowing you can rape your motor all you want, as fast as you want...and it won't blow. That is Honda reliability.
That is, unless you're exceeding the redline. If you do, I suggest you have a spare motor laying around so that you won't be stressing out too much every time you do it. And stress out you will, because by exceeding the redline you have effectively thrown that security out the window and turned your engine into a ticking time bomb, counting down until it blows. And blow it will. It's just a function of how much you exceeded it X time...and it will NOT be the factory intended hundreds of hours.
But hey, you only live once </TD></TR></TABLE>
^^ what he said ...
I'm sure it can. I wouldn't be surprised if you can rev it to 15000rpm. Hell, I had a GSR motor at 12000rpm.
That just the nature of designing for fatigue....you end up with something that can handle 10x more stress than it's ever supposed to see. But, it will be able to do it millions of times, for hundreds of hours. This means you get that warm fuzzy feeling of knowing you can rape your motor all you want, as fast as you want...and it won't blow. That is Honda reliability.
That is, unless you're exceeding the redline. If you do, I suggest you have a spare motor laying around so that you won't be stressing out too much every time you do it. And stress out you will, because by exceeding the redline you have effectively thrown that security out the window and turned your engine into a ticking time bomb, counting down until it blows. And blow it will. It's just a function of how much you exceeded it X time...and it will NOT be the factory intended hundreds of hours.
But hey, you only live once
</TD></TR></TABLE>^^ what he said ...
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From: Socal, CA
Re: ap1 9k rpm, ap2 8k rpm why is that? (Lsos)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lsos »</TD></TR><TR><TD CLASS="quote">
By designing for fatigue, we get something that can handle 10x more stress than it's ever supposed to see. This means I wouldn't be surprised it you can rev the engine to 15000rpm....a couple times. The trick is, engines are designed to last for many, many cycles...hundreds of hours at maximum stress. This means you get that warm fuzzy feeling of knowing you can rape your motor all you want, as fast as you want...and it won't blow. That is Honda reliability.
That is, unless you're exceeding the redline. If you do, I suggest you have a spare motor laying around so that you won't be stressing out too much every time you do it. And stress out you will, because by exceeding the redline you have effectively thrown that security out the window and turned your engine into a ticking time bomb. It will no longer last hundreds of hours. It will last less... a simple function of how much you exceeded the redline X how long. So when you do it, be aware that it's just counting down until it blows. And blow it will...and NOT after the factory intended hundreds of hours.
But hey, you only live once </TD></TR></TABLE>
Damn, you took the words right outta' my mouth.
By designing for fatigue, we get something that can handle 10x more stress than it's ever supposed to see. This means I wouldn't be surprised it you can rev the engine to 15000rpm....a couple times. The trick is, engines are designed to last for many, many cycles...hundreds of hours at maximum stress. This means you get that warm fuzzy feeling of knowing you can rape your motor all you want, as fast as you want...and it won't blow. That is Honda reliability.
That is, unless you're exceeding the redline. If you do, I suggest you have a spare motor laying around so that you won't be stressing out too much every time you do it. And stress out you will, because by exceeding the redline you have effectively thrown that security out the window and turned your engine into a ticking time bomb. It will no longer last hundreds of hours. It will last less... a simple function of how much you exceeded the redline X how long. So when you do it, be aware that it's just counting down until it blows. And blow it will...and NOT after the factory intended hundreds of hours.
But hey, you only live once
</TD></TR></TABLE>Damn, you took the words right outta' my mouth.
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