RZ/RD 350 & Misc. 2-Stroke Tech BBS

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 Post subject: Re: Isle of Man TT 2018
PostPosted: Fri Apr 06, 2018 5:43 pm 
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Joined: Mon Aug 20, 2012 1:37 am
Posts: 1809
Location: Calgary, Alberta
LC Cnd wrote:
https://www.youtube.com/watch?v=kNrxGfZxmTU


I really would reconsider taking an LC to IoM.

These bikes are ridiculously expensive over there which makes it a giant target for being stolen. The IoM is not a great place for a bike like the LC because speeds tend to be pretty high and would be easy to seize the thing on a long mountain uphill climb. Additionally it is easy to get the road wrong and go off the edge. There are loads of bike crashes over the 2 TT weeks. You will see lots of mangled bikes being pushed or trailered onto the ferry at the end of race week.

Rent a bike, take all the cost and risk out of it for your LC. Just take pics to show people when you are there. In my two trips to the TT I don't remember ever seeing an RZ or LC on the island.

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'81 RD350LC hybrid project bike - in pieces currently
'82 RD350LC in '81 colours - Built by "Solo 2" OEM pipes, UNI filters
'90 RZ350F2 with 31K motor, OEM F2 pipes & airbox


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 Post subject: Re: Isle of Man TT 2018
PostPosted: Mon Apr 16, 2018 11:00 pm 
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Joined: Mon Mar 03, 2014 8:44 pm
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Location: Alberta, Canada
That's interesting. The 2 stroke following is large over there.

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 Post subject: Re: Isle of Man TT 2018
PostPosted: Fri Apr 27, 2018 6:05 pm 
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Location: Calgary, Alberta
When we were there in 2007 we saw the Holy Grail of street 2-strokes, a Bimota V-Due. I actually stood around for a half hour till the owner showed up and rode it away. Just wanted to actually hear the thing run. ;)

The truth is you won't see very many 2-strokes at the TT. At least I haven't in my trips there.

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'81 RD350LC hybrid project bike - in pieces currently
'82 RD350LC in '81 colours - Built by "Solo 2" OEM pipes, UNI filters
'90 RZ350F2 with 31K motor, OEM F2 pipes & airbox


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 Post subject: Re: Isle of Man TT 2018
PostPosted: Sun Aug 12, 2018 2:14 pm 
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Joined: Sat Feb 08, 2014 5:39 pm
Posts: 1084
Location: Vancouver Is. Canada
Two stroke racing IOM 2018. Full lap. Top spd 322kph appears.

https://www.youtube.com/watch?v=VSj7-USiaSU


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 Post subject: Re: Isle of Man TT 2018
PostPosted: Sun Aug 12, 2018 9:10 pm 
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Joined: Fri Oct 03, 2003 11:11 pm
Posts: 3464
Location: Southern Ontario, Canada
...or on a real motorcycle;

https://youtu.be/-0BpiqF4a1A


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 Post subject: Re: Isle of Man TT 2018
PostPosted: Mon Oct 15, 2018 12:58 am 
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Location: Vancouver Is. Canada
This appears pretty real.
https://www.google.ca/url?sa=t&rct=j&q= ... 1uEumRF5C5

What amazes me is how a rotary TT bike sound so two stroke:
https://www.google.ca/url?sa=t&rct=j&q= ... II1Vul-Jpo


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 Post subject: Re: Isle of Man TT 2018
PostPosted: Mon Oct 15, 2018 1:22 am 
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Location: Calgary, Alberta
The price of that Suter is eye watering.

I saw Steve Hyslop race the Norton rotary at IoM back in 92 and can confirm it has a very 2-stroke like sound but it is meaner and wilder than a 2-stroke.

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'81 RD350LC hybrid project bike - in pieces currently
'82 RD350LC in '81 colours - Built by "Solo 2" OEM pipes, UNI filters
'90 RZ350F2 with 31K motor, OEM F2 pipes & airbox


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 Post subject: Re: Isle of Man TT 2018
PostPosted: Mon Oct 15, 2018 7:59 pm 
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Joined: Tue Jan 20, 2015 8:18 pm
Posts: 121
Location: The Land of Francorchamps
valves open "slowly", holes open "fast" which creates a different sound.

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 Post subject: Re: Isle of Man TT 2018
PostPosted: Mon Oct 15, 2018 9:02 pm 
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Joined: Mon Aug 20, 2012 1:37 am
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Location: Calgary, Alberta
I think it also has to do with the number of power pulses per crank rotation as well as the number of rotors and any offset between the rotors. A rotary will produce 3 power pulses per crank rotation and I believe those Nortons were dual rotors?

All I know is that those racing Norton rotaries sounded EVIL!

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'81 RD350LC hybrid project bike - in pieces currently
'82 RD350LC in '81 colours - Built by "Solo 2" OEM pipes, UNI filters
'90 RZ350F2 with 31K motor, OEM F2 pipes & airbox


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