Speed

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alec
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Speed

Post by alec »

Just taken my storm out for a run, can someone tell me why the storm at 90mph feels like its doing 50mph, my old zx9r at 90mph you knew you was doing it :crazy:
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geodude
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Re: Speed

Post by geodude »

alec wrote:Just taken my storm out for a run, can someone tell me why the storm at 90mph feels like its doing 50mph, my old zx9r at 90mph you knew you was doing it :crazy:

v2 vs il4 perhaps?
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alec
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Re: Speed

Post by alec »

geodude wrote:
alec wrote:Just taken my storm out for a run, can someone tell me why the storm at 90mph feels like its doing 50mph, my old zx9r at 90mph you knew you was doing it :crazy:

v2 vs il4 perhaps?
dunno i've never had a V2 before, feels so much smoother than the il4's
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benny hedges
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Re: Speed

Post by benny hedges »

wonder if i could use that as an excuse in court..... sorry your honour, i didnt realise i was doing 95, i am riding a big lazy vee twin and it felt like i was only doing 55 :lol:
got to be worth a try!
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Soutie
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Re: Speed

Post by Soutie »

Your speedo is Kph :lol: 90Kph is about 50Mph, try following a mate on their bike just to make sure your speedo isn't fooked
tony.mon
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Re: Speed

Post by tony.mon »

The good thing is that due to the slower exhaust pulses it doesn't sound like it's doing 90 either; so the plod tend to leave you alone more than the screaming elbow-in-the-air nose-on-the-speedo il4's.

Even with loud cans!
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alec
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Re: Speed

Post by alec »

Soutie wrote:Your speedo is Kph :lol: 90Kph is about 50Mph, try following a mate on their bike just to make sure your speedo isn't fooked
speedo's in MPH and definately right, my girlfriend was hanging on for her life, especially with me not quite used to it yet as well :thumbup: lol
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Stratman
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Re: Speed

Post by Stratman »

Welcome to FireStorm World, home of the most underated bike in the last 13 years!
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warby221
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Re: Speed

Post by warby221 »

Stratman wrote:Welcome to FireStorm World, home of the most underated bike in the last 13 years!
gotta agree with that :clap: :clap:
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bandsawman
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Re: Speed

Post by bandsawman »

warby221 wrote:
Stratman wrote:Welcome to FireStorm World, home of the most underated bike in the last 13 years!
gotta agree with that :clap: :clap:
and me...
tony.mon wrote:...due to the slower exhaust pulses it doesn't sound like it's doing 90...
Tony, can you elaborate any further on this please?
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Re: Speed

Post by tony.mon »

It's a twin, half the cylinders of an il4, so assuming the same revs there are half the bangs from the exhaust over a measured distance.
But il4's rev higher than veetwins, so lets say only about 3/5ths of the number of bangs per distance.

So from a passer's-by's perspective, less bangs sounds slower.
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bandsawman
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Re: Speed

Post by bandsawman »

Yes, of course - that makes a lot of sense.

Something I've never fully understood, is why it's harder to lose grip at the back end of a V-twin than it is on an IL4.
I understand it's something to do with bigger gaps between the power pulses - thus allowing the tyre to regain traction in-between pulses...
Can you shed any light on this?
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benny hedges
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Re: Speed

Post by benny hedges »

tony.mon wrote:It's a twin, half the cylinders of an il4, so assuming the same revs there are half the bangs from the exhaust over a measured distance.
But il4's rev higher than veetwins, so lets say only about 3/5ths of the number of bangs per distance.

So from a passer's-by's perspective, less bangs sounds slower.
mmmmh. where does a new(ish) r1 fit into this... :think:

if you havent heard one... they sound bloody wierd lol. 8O
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bandsawman
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Re: Speed

Post by bandsawman »

Exactly! I read something about the new cross-plane crank that Yamaha use, and that's what it's all about - gaps in the pulses of power to improve traction.
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benny hedges
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Re: Speed

Post by benny hedges »

it fires in pairs like a twin... sounds like a vee tho.
wierd sound but they fkin shift lol
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