royj9
2nd Class Ticket
Posts: 7
|
Post by royj9 on Jul 5, 2006 21:37:09 GMT
never ridden one so if youv got one let us no cheers lads <wethers cush eh lads> ;D
|
|
|
|
Post by Smallframe on Jul 8, 2006 17:26:49 GMT
bog standard p2 should easy hit 70+ . If it doesn't then it was built on a friday ;D
|
|
|
|
Post by lambyboy on Jul 7, 2010 17:26:42 GMT
70 + you must be sniffing fumes and be dreaming
|
|
|
|
Post by bryno on Jul 8, 2010 7:55:42 GMT
Real world 60 - 65 i'd say
|
|
|
|
Post by bobbanker on Jul 8, 2010 8:40:00 GMT
My standard 150 did 60-70 ish
|
|
|
|
Post by bryno on Jul 8, 2010 11:46:26 GMT
Knock 10 MPH off for speedo error and I think we're there  Has anyone actually run a GPS speedo on a P2? |
|
|
|
Post by Robjack on Jul 8, 2010 12:06:38 GMT
My standard 150 did 60-70 ish Are you Frankie Dettori? ;D I think Bryno's on the button there. Vespa speedos are notoriously wide of the mark. |
|
|
|
Post by bobbanker on Jul 8, 2010 20:44:22 GMT
My standard 150 did 60-70 ish Are you Frankie Dettori? ;D I think Bryno's on the button there. Vespa speedos are notoriously wide of the mark. Speedo was in kph which i doctored to mph lol went way past the 120 kph going downhill lmfao!! |
|
|
|
Post by joey on Jul 9, 2010 0:17:53 GMT
Military GPS, downhill, tailwind, head down off the clock!.........................
GPS said 57!
Me and a mate on the way back from MFN, he said it was good to be doing 60/65 all the way home for once, I said (from GPS,) that I'd had to slow down once we got to 55 as I was losing him!
Standard P2 is good for a genuine 60/65 in favourable conditions with a decent pipe once it's loosened up.
Ignore the speedo it's a bloody liar!
|
|
|
|
Post by booga1963 on Jul 9, 2010 11:44:24 GMT
Standard P2 is good for a genuine 60/65 in favourable conditions with a decent pipe once it's loosened up. Ignore the speedo it's a bloody liar! bloody Italians, always exaggerating! ;D |
|
|
|
Post by dave1967 on Jul 10, 2010 9:35:57 GMT
Depends on what P2 your are talking about, I have one of the last non disc that was fitted with the Cosa clutch as standard, I added a Scorpion Pipe and up jetted the carb, I have GPS it and checked it against a car and it will in good weather conditions hit 70 , day to day it will hit 60-65 and cruise at about 60. Speedo is about 3 mph out. I have got to be honest i am not sure i would want to go much quicker on a scooter.
|
|
|
|
Post by bryno on Jul 12, 2010 16:36:27 GMT
I agree, anything over 60MPH on 10" wheels with innertubes makes me rather twitchy!  |
|
|
|
Post by jwmagee on Jul 14, 2010 21:09:39 GMT
Well reading this has made me feel a bit beer, I thought my '08 PX125 was slow (standard with a Scorpion exhaust). I had it dyno'd last week to try and get the bike classified so I can use it for for an A2 licence... two runs at 64.87mph and 64.74mph, it would go no further because of the gearing. I was going to put a DR180 kit on, but not sure if it's worth it.
John
|
|
|
|
Post by Devo McDuff on Jul 15, 2010 1:58:33 GMT
That sounds excellent to me for a 125, my PX didn't get near that ... pre kit anyway |
|
|
|
Post by bryno on Jul 15, 2010 7:43:11 GMT
Well reading this has made me feel a bit beer, I thought my '08 PX125 was slow (standard with a Scorpion exhaust). I had it dyno'd last week to try and get the bike classified so I can use it for for an A2 licence... two runs at 64.87mph and 64.74mph, it would go no further because of the gearing. I was going to put a DR180 kit on, but not sure if it's worth it. John How was the speed tested, on the dyno, or road? Interested to know what BHP it made? |
|
|
|
Post by joey on Jul 15, 2010 9:55:28 GMT
Be aware that a dyno speed run in no way reflects the actual speed you're likely to reach on the road.
Factors such as wind resistance, rider weight, rolling resistance etc are not taken into account as they would be on the road.
In your case it's good because you can now prove to the test centre that your scoot is capable, under perfect conditions, of reaching the speeds quoted for the required license.
64.87mph on a dyno would equate to roughly 55ish on a good day.
|
|
|
|
Post by Feed Your Head on Jul 15, 2010 20:35:38 GMT
Be aware that a dyno speed run in no way reflects the actual speed you're likely to reach on the road. Factors such as wind resistance, rider weight, rolling resistance etc are not taken into account as they would be on the road. In your case it's good because you can now prove to the test centre that your scoot is capable, under perfect conditions, of reaching the speeds quoted for the required license. 64.87mph on a dyno would equate to roughly 55ish on a good day. Makes me wonder what's the point of having one lol.  |
|
|
|
Post by joey on Jul 16, 2010 7:40:46 GMT
Don't get me wrong a dyno is a useful tool for seting your scoot up when used properly.
It can be used to set the correct stoichiometric ratio (fuel/air,) at various throttle openings and speeds, but this can also be done by checking your plug at those same throttle openings and speeds.
It can be used to assist in putting together the right parts to achieve a decent torqey motor with a good spread of power.
But let's be honest........... when was the last time you saw a dyno sheet with an A/F graph attached? The truth is that most people just want to see peak power and top speed figures so that they can have bragging rights down the pub.
|
|
