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Author Topic: Honda NR V-4 Engine  (Read 2838 times)

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Offline fabr

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Honda NR V-4 Engine
« on: May 10, 2015, 07:55:53 PM »
I THOUGHT I was aware of most things engine. I was WRONG!!!!!!! Look at the pistons.

 A link to more info   http://www.deejay51.com/honda_racebikes_pg_3.htm

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odypilots

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Re: Honda NR V-4 Engine
« Reply #1 on: May 11, 2015, 06:05:07 AM »
I remember that. Honda was trying it in GP road racing. It must have been the 1980s. I think it was ring sealing problems that did it in.
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Offline fabr

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Re: Honda NR V-4 Engine
« Reply #2 on: May 11, 2015, 06:11:42 AM »
Yes,GP limited engines to 4 cylinders at the time. Knowing what I do ,I see no way for there to have been a way to ring the pistons reliably. I also see huge issues related to the 2 rods per piston .
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline dsrace

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Re: Honda NR V-4 Engine
« Reply #3 on: May 11, 2015, 07:07:04 AM »
never heard nor seen one of them!!!!   interesting design but ya i can see the issue. funny part is that honda has a lot of bastard 1 off designs out there, in every type of engine they built.
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Offline BDKW1

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Re: Honda NR V-4 Engine
« Reply #4 on: May 11, 2015, 04:24:58 PM »
The joke was, NR stood for Not ready.....

Most of the development for that motor was done on a turbo V-twin. Their Siamese bore V8 was spinning more RPM than anybody else and making way more power per CC than any 4 stroke before it. I think it won the 24 hours of LeMans, The names on the bike were Gill, Ken, Malcom. Not well known riders at the time, but they got the job done.
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Offline BDKW1

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Re: Honda NR V-4 Engine
« Reply #5 on: May 11, 2015, 04:40:35 PM »
Apparently they made 700 street legal versions to homologate them for world superbike racing. Little did I know. Wonder how much a top end kit for one of those goes for........

http://www.motorcyclespecs.co.za/model/honda/honda_nr750.htm
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Offline dsrace

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Re: Honda NR V-4 Engine
« Reply #6 on: May 12, 2015, 05:12:40 PM »
interesting read and like i said a lot of bastard designs but atleast they test them on the bikes and atv's before they implement them into the automobiles
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Offline fabr

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Re: Honda NR V-4 Engine
« Reply #7 on: May 12, 2015, 05:15:38 PM »
It was a very interesting read for sure!
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"
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