Sat Sep 24, 2011 7:08 pm

Molto Verboso
63 Lambretta LI 125 series 3, 71 Sprint Veloce , 2005 Vespa PX150, 1979 P200E
Joined: 04 Jul 2011
Posts: 1018
Location: Tucson, AZ
 
Molto Verboso
63 Lambretta LI 125 series 3, 71 Sprint Veloce , 2005 Vespa PX150, 1979 P200E
Joined: 04 Jul 2011
Posts: 1018
Location: Tucson, AZ
Sat Sep 24, 2011 7:08 pm linkquote
I would like to put the gossip and the speculation and the uncertian comments about "the GTS 250 is quicker than the GTS300", I want to do the real test. If you think the GTS 250 is quicker/faster tha the GTS 300 please PM me and we will test it on the HWY (I-10) near Tucson,AZ or HWY 19 (Tucson to Mexico), I ride a GTS 300.

I live in Tucson, have a GPS and can have someone following on video and filming it you can have another person filming it as well. Anyone want to try it?
If I find out that the GTS 250 is actually quicker/faster then we can have a reference for the entire forum and we can put this silly debate to rest forever. Thanks!

Last edited by scooterist on Sat Sep 24, 2011 7:45 pm; edited 3 times in total
Sat Sep 24, 2011 7:38 pm

Ossessionato
A fracking cage sadly
Joined: 22 Jul 2009
Posts: 4000
Location: Seattle
 
Ossessionato
A fracking cage sadly
Joined: 22 Jul 2009
Posts: 4000
Location: Seattle
Sat Sep 24, 2011 7:38 pm linkquote
I doesn't really matter - my Sport City 250 will beat both scooters and do it more sporty-like
Sat Sep 24, 2011 7:42 pm

Molto Verboso
63 Lambretta LI 125 series 3, 71 Sprint Veloce , 2005 Vespa PX150, 1979 P200E
Joined: 04 Jul 2011
Posts: 1018
Location: Tucson, AZ
 
Molto Verboso
63 Lambretta LI 125 series 3, 71 Sprint Veloce , 2005 Vespa PX150, 1979 P200E
Joined: 04 Jul 2011
Posts: 1018
Location: Tucson, AZ
Sat Sep 24, 2011 7:42 pm linkquote
^^ bring it along too.. 8)
Sat Sep 24, 2011 8:09 pm

Veni, Vidi, Posti
GTS 300ABS, Buddy 125, Buddy Kick 125
Joined: 29 Dec 2007
Posts: 12126
Location: Oregon City, OR
 
Veni, Vidi, Posti
GTS 300ABS, Buddy 125, Buddy Kick 125
Joined: 29 Dec 2007
Posts: 12126
Location: Oregon City, OR
Sat Sep 24, 2011 8:09 pm linkquote
Actually most folks that have commented on this have suggested that the 300 accelerates more quickly at low to medium speeds and the 250 does better at higher speeds. Not really the same as saying that the 250 is "quicker/faster" than the 300. Before you suggest some kind of match-up, you'll need to decide what is is you are testing.
Sat Sep 24, 2011 8:38 pm

Molto Verboso
63 Lambretta LI 125 series 3, 71 Sprint Veloce , 2005 Vespa PX150, 1979 P200E
Joined: 04 Jul 2011
Posts: 1018
Location: Tucson, AZ
 
Molto Verboso
63 Lambretta LI 125 series 3, 71 Sprint Veloce , 2005 Vespa PX150, 1979 P200E
Joined: 04 Jul 2011
Posts: 1018
Location: Tucson, AZ
Sat Sep 24, 2011 8:38 pm linkquote
My plan was honestly to do multiple test. My test were about top speed, acceleration from a roll and acceleration from a dead stop but doing this multiple times to make sure that we get consistent results.

I am doing this for the community and mainly for me because I find it fun to do and I always like comparisons. Thanks for asking though.
Sat Sep 24, 2011 8:38 pm

Ossessionato
LX150, GTS300(black & white), GTS300(red)
Joined: 25 Dec 2008
Posts: 2467
Location: Menifee, CA. (Land of the Dirt People)
 
Ossessionato
LX150, GTS300(black & white), GTS300(red)
Joined: 25 Dec 2008
Posts: 2467
Location: Menifee, CA. (Land of the Dirt People)
Sat Sep 24, 2011 8:38 pm linkquote
I foresee an episode of "Pinks" in the making.....
Sat Sep 24, 2011 8:39 pm

Banned
2:6
Joined: 11 Jan 2007
Posts: 7906
Location: San Francisco
 
Banned
2:6
Joined: 11 Jan 2007
Posts: 7906
Location: San Francisco
Sat Sep 24, 2011 8:39 pm linkquote
I'd be willing to put my GT200 into this challenge as well. I think the 300 is fast in test rides (off the line and around the block), but that's about it.

Last edited by oopsclunkthud on Sat Sep 24, 2011 9:09 pm; edited 1 time in total
Sat Sep 24, 2011 8:47 pm

Molto Verboso
63 Lambretta LI 125 series 3, 71 Sprint Veloce , 2005 Vespa PX150, 1979 P200E
Joined: 04 Jul 2011
Posts: 1018
Location: Tucson, AZ
 
Molto Verboso
63 Lambretta LI 125 series 3, 71 Sprint Veloce , 2005 Vespa PX150, 1979 P200E
Joined: 04 Jul 2011
Posts: 1018
Location: Tucson, AZ
Sat Sep 24, 2011 8:47 pm linkquote
^^ By all means, I am inviting any other scooterist that owns a GTS250 and/or a GTS 300 to do the same test in any other road at anytime. Bring a GT200 to the part as well
Sat Sep 24, 2011 8:51 pm

Ossessionato
LX150, GTS300(black & white), GTS300(red)
Joined: 25 Dec 2008
Posts: 2467
Location: Menifee, CA. (Land of the Dirt People)
 
Ossessionato
LX150, GTS300(black & white), GTS300(red)
Joined: 25 Dec 2008
Posts: 2467
Location: Menifee, CA. (Land of the Dirt People)
Sat Sep 24, 2011 8:51 pm linkquote
Maybe do it at the Great Southwest Scooter Fiesta next month....??
Sat Sep 24, 2011 8:54 pm

Molto Verboso
'05 Vespa Granturismo
Joined: 22 Apr 2008
Posts: 1610
Location: Rancho Cordova, California
 
Molto Verboso
'05 Vespa Granturismo
Joined: 22 Apr 2008
Posts: 1610
Location: Rancho Cordova, California
Sat Sep 24, 2011 8:54 pm linkquote
I've been led to believe that the 300 was desigined to pull a double bottom plow, and the 250 is for doubling up with a fat chick on behind.
The real sport machine is the GT 200L.
Sat Sep 24, 2011 9:09 pm

Moderatrice Strega
Joined: 30 Jan 2007
Posts: 7429

 
Moderatrice Strega
Joined: 30 Jan 2007
Posts: 7429

Sat Sep 24, 2011 9:09 pm linkquote
I don't know about scientific testing, but...

My GTV 250 totally smoked a white Super on the way home this evening. Dunno if the other guy was actually trying all that much, but it still amused me. Possible it was a 250 Super, but I kind of doubt it.
Sat Sep 24, 2011 9:13 pm

Addicted
RIP: 2010 300 Super
Joined: 05 Jul 2011
Posts: 551
Location: Redlands, Ca
 
Addicted
RIP: 2010 300 Super
Joined: 05 Jul 2011
Posts: 551
Location: Redlands, Ca
Sat Sep 24, 2011 9:13 pm linkquote
Race for pinks!
Sun Sep 25, 2011 12:02 am

Member
Joined: 23 Sep 2011
Posts: 12
Location: Haderslev, Denmark
 
Member
Joined: 23 Sep 2011
Posts: 12
Location: Haderslev, Denmark
Sun Sep 25, 2011 12:02 am linkquote
Well my Moto Guzzi California 1100i will outgun all of you.

But is that really why you have a scooter?

If you want to go really fast go and buy a super sporty sports bike and that will stop motorcyclists laughing at you when you are trying to hide behind that tiny windscreen, laying down and screwing the last 1mph out of an already screaming engine.

I am playing devils advocate here.

I thought scooters were more about class than speed. I have got my eye on a new GTV 300 to do a bit of touring with my girlfriend and just slow down and enjoy the view a bit.

I will still keep the Moto Guzzi though.

Steve
Sun Sep 25, 2011 6:25 am

Addicted
Lambretta child
Joined: 04 Aug 2010
Posts: 510
Location: Midwest, West Oz
 
Addicted
Lambretta child
Joined: 04 Aug 2010
Posts: 510
Location: Midwest, West Oz
Sun Sep 25, 2011 6:25 am linkquote
Now come on Steve.
Here we all are plotting and scheming, and then you go and be all sensible on us!
If I lived anywhere near Arizona, I'd be in instantly. A speed test of scoots is just the sort of ridiculous test-for-no-reason that I love. Can someone get a Sportcity in there too please?
Sun Sep 25, 2011 6:41 am

Ossessionato
2009 Vespa GTS 250, TBA
Joined: 31 Jan 2009
Posts: 2272
Location: Green Valley, AZ
 
Ossessionato
2009 Vespa GTS 250, TBA
Joined: 31 Jan 2009
Posts: 2272
Location: Green Valley, AZ
Sun Sep 25, 2011 6:41 am linkquote
Better not plan to do this on I-19; it's become a hotbed of DPS revenue enhancement!
Sun Sep 25, 2011 6:55 am

Petty Tyrant
0:7
Joined: 11 Oct 2005
Posts: 32421
Location: Bay Area, California
 
Petty Tyrant
0:7
Joined: 11 Oct 2005
Posts: 32421
Location: Bay Area, California
Sun Sep 25, 2011 6:55 am linkquote
steveindenmark wrote:
Well my Moto Guzzi California 1100i will outgun all of you.
If I get to pick the road, I'll easily spank your Guzzi.

See, there's another reason we ride scooters. Motorcycles are fast in a straight line and even handle well on big sweeper. Relative to scooters, though, motorcycles are big and heavy and hard to turn. On the roads we like to ride (sometimes referred to as "goat trails"), even sport bikes are inferior machines.
Sun Sep 25, 2011 7:21 am

Petty Tyrant
0:7
Joined: 11 Oct 2005
Posts: 32421
Location: Bay Area, California
 
Petty Tyrant
0:7
Joined: 11 Oct 2005
Posts: 32421
Location: Bay Area, California
Sun Sep 25, 2011 7:21 am linkquote
Re: Challenge: My GTS 300 vs your GTS 250 top speed and acce
scooterist wrote:
I would like to put the gossip and the speculation and the uncertian comments about "the GTS 250 is quicker than the GTS300", I want to do the real test. If you think the GTS 250 is quicker/faster tha the GTS 300 please PM me and we will test it on the HWY (I-10) near Tucson,AZ or HWY 19 (Tucson to Mexico), I ride a GTS 300.
I think someone might have a bit of an inferiority complex.

As someone who owns both and who regularly rides with others on similarly equipped machines, there's really no doubt -- we've done this test a million times in our everyday riding.

Here are the facts:

- Both bikes have a very similar top speed. The rev limiter, after all, is the same. The variator is the same but with different weights. The final drive gearing is rumored to be different, but we haven't opened up the gears to count the teeth yet and we're a bit skeptical that it's different.

- The 300 is a stroked motor, which gives it a power curve that peaks at an earlier RPM and then falls off. This gives the 300 lots of off-the-line power.

- The 250 has a power curve that produces less power overall but peaks at a later (larger) RPM.

- To maintain top speed on either bike, you have to get the bike all the way (or very near to) the rev limit. This is difficult on either bike on anything except a smooth, flat road.

- By the time the 250 reaches the rev limit, power is starting to fall off.

- By the time the 300 reaches the rev limit, power has fallen off dramatically.

- You can coax the 300 up to the same top speed as a 250, but you will have a harder time doing it. Any resistance (wind, hills, the rider's wind profile) will have a more pronounced effect on the 300 than the 250 up near the top end. The 250 will have a much easier time maintaining that top speed than the 300 will.

--

What I'm saying here is that engine size isn't everything, and we Americans tend to be stupidly brainwashed into believing displacement trumps everything else. The Italians, meanwhile, are trying to figure out how to trick Americans into thinking that the 300 is an improvement while not doing any substantial engineering work, and so gave us a stroked motor.

What's far, far more important than how many CCs the engine has or even how much power it makes is where in the band it makes it. If you want a city bike, the 300 is great. If you want a touring bike, the 250 is probably a better choice. I know that would be (and in fact is, since I own both) my own personal choice.

--

Here are some things your test will be incapable of quantifying:

- Any two GTSs (same engine size) are going to behave slightly differently from each other. Some of these reasons are mechanical, such as how well it was broken in, whether the variator pulley is worn, size of rear tire, and so on.

- Any two GTSs that are otherwise identically equipped mechanically will randomly trade off position, with one getting faster and one getting slower, for no apparent reason. We have done this for extended lengths of time (hundreds of miles in a row) during Cannonball. The effect is real. Sometimes the ECU will put out full power, and sometimes it won't. Nobody knows why (though I have some guesses).

- While both the 250 and the 300 have similar top speeds, it's harder for the 300 to get there and it has a harder time staying there once it's reached it.

--

So please, by all means, hold your test. But if you think your single data point will change reality, you are sadly mistaken.
Sun Sep 25, 2011 8:12 am

Ossessionato
09 190s taormina
Joined: 08 Apr 2010
Posts: 2081
Location: Googleville
 
Ossessionato
09 190s taormina
Joined: 08 Apr 2010
Posts: 2081
Location: Googleville
Sun Sep 25, 2011 8:12 am linkquote
And where would a air-cooled 190 fit in the mix? Beats em all up to about 30, right?
Sun Sep 25, 2011 9:54 am

Molto Verboso
'05 Vespa Granturismo
Joined: 22 Apr 2008
Posts: 1610
Location: Rancho Cordova, California
 
Molto Verboso
'05 Vespa Granturismo
Joined: 22 Apr 2008
Posts: 1610
Location: Rancho Cordova, California
Sun Sep 25, 2011 9:54 am linkquote
Jess,
Do you ever plow with your 300?
Sun Sep 25, 2011 10:47 am

Molto Verboso
Joined: 10 Feb 2008
Posts: 1104
Location: Midwest
 
Molto Verboso
Joined: 10 Feb 2008
Posts: 1104
Location: Midwest
Sun Sep 25, 2011 10:47 am linkquote
Ok if the 300 isnt quite as fast as the 250 I think we need a tug o war or tractor pull type of test.At least then we can see if the 300 has more power.

It should shouldn't it?
Sun Sep 25, 2011 11:40 am

Hooked
'12 GTV 300 ie Touring, 2009 Yamaha Vino 125 (now owned by my son); 2009 Buddy 125--wife's scooter that we'll both ride
Joined: 10 Sep 2011
Posts: 271
Location: Oceanside, CA
 
Hooked
'12 GTV 300 ie Touring, 2009 Yamaha Vino 125 (now owned by my son); 2009 Buddy 125--wife's scooter that we'll both ride
Joined: 10 Sep 2011
Posts: 271
Location: Oceanside, CA
Sun Sep 25, 2011 11:40 am linkquote
Re: Challenge: My GTS 300 vs your GTS 250 top speed and acce
jess wrote:
What I'm saying here is that engine size isn't everything, and we Americans tend to be stupidly brainwashed into believing displacement trumps everything else. The Italians, meanwhile, are trying to figure out how to trick Americans into thinking that the 300 is an improvement while not doing any substantial engineering work, and so gave us a stroked motor.
I know that I wasn't tricked by the Italians and I don't think they were trying to trick anyone. I like what they did to get to a 300 (278), whether they simply stroked the 250 or not. Piaggio figured out that Americans are big on torque, essentially usable power. The 300 motor is great for that. Vespas are not primarily designed as high speed tourers, as I'm sure you know. They excel at urban use, and the 300 is among the best for that.

I may never take my 300 GTV to its top speed, and I'm probably not alone. I don't need to go 80 mph on a scooter. I'm satisfied that it pulls just fine up to the legal speeds in my area, and mine's not even broken in yet. Most definitely, I will appreciate the scoot's off the line and lower speed abilities every time I use it, which will be often.

Much as I prefer my VW GTI (small displacement engine but abundant torque with its turbo) to a Honda Civic Si, which produces most of its power at the top of the rev range, I prefer the 300 to smaller displacement scooters.

To put things into perspective, Piaggio didn't stick a 600 or 1300 or whatever engine (if they could shoehorn such a thing in there) into the Vespa, they added a little size and power, albeit at a lower rpm. That works for me, although it may not be so much to your liking.

By no means am I knocking the 250 GTS or any other Vespa. I think they're all great. I'm just saying I'm happy with my purchase and that the 300 is perfect for me.
Sun Sep 25, 2011 12:27 pm

Addicted
GTS 300
Joined: 16 May 2009
Posts: 761
Location: PHX area
 
Addicted
GTS 300
Joined: 16 May 2009
Posts: 761
Location: PHX area
Sun Sep 25, 2011 12:27 pm linkquote
I can only speak of my personal experience:
The wife has a 250, I have a 300
She has a taller windscreen than I
She weighs in at around 130, I weigh in around 175
Her scooter is one year older than mine
We both have a little over 11K miles on the scooters
We both run the same rear tire, Pirelli
She has red, I have black
We have ridden thousands of miles together, many of those miles on freeways +75 mph

That all said - in every situation except on slight downhill grades at top speed
My 300 is always quicker and faster, in the cases mentioned above she never pulls away

Rarely do we ever hit the rev limiter;
It is only when riding at lower altitude do we hit the limiter - most of our ridding is higher altitude
Sun Sep 25, 2011 2:35 pm

Ossessionato
Blue GTS300 Super 2015, White GTS300 Super 2018
Joined: 01 Nov 2005
Posts: 2918
Location: Sydney, Australia
 
Ossessionato
Blue GTS300 Super 2015, White GTS300 Super 2018
Joined: 01 Nov 2005
Posts: 2918
Location: Sydney, Australia
Sun Sep 25, 2011 2:35 pm linkquote
Re: Challenge: My GTS 300 vs your GTS 250 top speed and acce
jess wrote:
- Both bikes have a very similar top speed. The rev limiter, after all, is the same. The variator is the same but with different weights. The final drive gearing is rumored to be different, but we haven't opened up the gears to count the teeth yet and we're a bit skeptical that it's different.
Malossi have produced an upgear kit for the 300, to go along with their 280cc cylinder and V4 head. It does not work on the 250 because it actually brings the 300 gearing closer to the 250 gearing.

Mike
Sun Sep 25, 2011 2:50 pm

Banned
2:6
Joined: 11 Jan 2007
Posts: 7906
Location: San Francisco
 
Banned
2:6
Joined: 11 Jan 2007
Posts: 7906
Location: San Francisco
Sun Sep 25, 2011 2:50 pm linkquote
Re: Challenge: My GTS 300 vs your GTS 250 top speed and acce
Mike Holland wrote:
jess wrote:
- Both bikes have a very similar top speed. The rev limiter, after all, is the same. The variator is the same but with different weights. The final drive gearing is rumored to be different, but we haven't opened up the gears to count the teeth yet and we're a bit skeptical that it's different.
Malossi have produced an upgear kit for the 300, to go along with their 280cc cylinder and V4 head. It does not work on the 250 because it actually brings the 300 gearing closer to the 250 gearing.

Mike
Based on the tooth counts of the mallosi kit (having held them in hand and counted) it would be an upgear for the 250 and does look like it will fit. should have 300 tooth counts soon.
Sun Sep 25, 2011 2:57 pm

eeee-bip
BMW R1100RT - The Paperweight Royal Enfield 500 Trials
Joined: 15 Apr 2008
Posts: 18041
Location: South East Great England of Britishland
 
eeee-bip
BMW R1100RT - The Paperweight Royal Enfield 500 Trials
Joined: 15 Apr 2008
Posts: 18041
Location: South East Great England of Britishland
Sun Sep 25, 2011 2:57 pm linkquote
Final
The 300 will be quicker off the line but the 250 will have a higher top end.

Sorted.

Bill X
Sun Sep 25, 2011 3:13 pm

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 40247
Location: Pleasant Hill, CA
 
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 40247
Location: Pleasant Hill, CA
Sun Sep 25, 2011 3:13 pm linkquote
And the skinny lightweights who can make the GT200 go faster than any of them - well I've seen them ride. They add extra horsepower just by being in close proximity to any bike.

But for your average bloke, on a stock machine, with no more than a fly-screen, and no 'scooter-tucks' - it's quite clear to this 'normal bloke' who owns all three:

The 200 is the most fun because you have to wring its neck, and it likes it.
The 250 is the one for enjoying every bit of a long journey.
The 300 is the best urban warrior machine Vespa have yet produced.

And as a topic-veering aside about current machines:
Best close-contact-sport urban machine: LX 125/150.
Best suburban gofer and twistie gourmand in all weathers: MP3 500 (Fuoco).
Best 'ride with the boys': GP800 - no contest there whatsoever.

And finally - the most comfortable very-long-distance 100mph+ machine that Piaggio have ever produced: X9 500, still the Rolls-Royce of the fleet IMHO.
Sun Sep 25, 2011 5:36 pm

Petty Tyrant
0:7
Joined: 11 Oct 2005
Posts: 32421
Location: Bay Area, California
 
Petty Tyrant
0:7
Joined: 11 Oct 2005
Posts: 32421
Location: Bay Area, California
Sun Sep 25, 2011 5:36 pm linkquote
jimc wrote:
The 200 is the most fun because you have to wring its neck, and it likes it.
The 250 is the one for enjoying every bit of a long journey.
The 300 is the best urban warrior machine Vespa have yet produced.
Just so.
Sun Sep 25, 2011 7:10 pm

Ossessionato
LXV 150 3v ie. Midnight Blue (Sold) Now Honda Zoomer X
Joined: 06 Dec 2010
Posts: 3590
Location: Kingdom of Lanna
 
Ossessionato
LXV 150 3v ie. Midnight Blue (Sold) Now Honda Zoomer X
Joined: 06 Dec 2010
Posts: 3590
Location: Kingdom of Lanna
Sun Sep 25, 2011 7:10 pm linkquote
This is SO easy.

Anyone with a scoot, Android phone and interested can use
RacerDroid. (free) It has 0-60ft, 0-330ft and 1/8 mile.

There simply needs to be an agreement on format and the tests can be done anywhere and not necessarily together.

Post picture of graph and the "leader" can compile the data and get an "average"
Mon Sep 26, 2011 10:13 am

Ossessionato
Joined: 17 Jul 2009
Posts: 3727
Location: Venice Beach, CA
 
Ossessionato
Joined: 17 Jul 2009
Posts: 3727
Location: Venice Beach, CA
Mon Sep 26, 2011 10:13 am linkquote
Race for 7th place!
250 vs 300

One gets to 100 kmh in 13.9 seconds
One gets to 100 kmh in 14.5 seconds

http://www.thescooterreview.com/component/content/article/399-vespa-gts-300?start=1

Both are slow. I guess the argument here is which is the least slow...
Mon Sep 26, 2011 11:09 am

Sir Frets-A-Lot
Vespa GT250ie/L, Honda Ruckus 50, Honda NT700V, Honda CB125
Joined: 03 Nov 2005
Posts: 11197
Location: Bee eff eee.
 
Sir Frets-A-Lot
Vespa GT250ie/L, Honda Ruckus 50, Honda NT700V, Honda CB125
Joined: 03 Nov 2005
Posts: 11197
Location: Bee eff eee.
Mon Sep 26, 2011 11:09 am linkquote
Desmolicious wrote:
250 vs 300

One gets to 100 kmh in 13.9 seconds
One gets to 100 kmh in 14.5 seconds

http://www.thescooterreview.com/component/content/article/399-vespa-gts-300?start=1

Both are slow. I guess the argument here is which is the least slow...
Thats a battle I want to win! Least slow!
Mon Sep 26, 2011 11:13 am

Sir Frets-A-Lot
Vespa GT250ie/L, Honda Ruckus 50, Honda NT700V, Honda CB125
Joined: 03 Nov 2005
Posts: 11197
Location: Bee eff eee.
 
Sir Frets-A-Lot
Vespa GT250ie/L, Honda Ruckus 50, Honda NT700V, Honda CB125
Joined: 03 Nov 2005
Posts: 11197
Location: Bee eff eee.
Mon Sep 26, 2011 11:13 am linkquote
jimc wrote:
And the skinny lightweights who can make the GT200 go faster than any of them - well I've seen them ride. They add extra horsepower just by being in close proximity to any bike.

But mine -was- faster. Not sure why of course. But it was. it was teh awesome until I busted it.

(pretending you were talking about me and not Patrick, who you were actually talking about)

I do feel annoyed I lost 4mph on my top speed when swapping engines tho. Cest la vie.
Thu Sep 29, 2011 6:23 pm

Hooked
GTS 250
Joined: 16 Mar 2011
Posts: 222
Location: Metairie,La.
 
Hooked
GTS 250
Joined: 16 Mar 2011
Posts: 222
Location: Metairie,La.
Thu Sep 29, 2011 6:23 pm linkquote
Are they rev limited? I have all sorts of upgrades-( malossi air filter, variator, and torque driver, and iridium plug) though standard weight roller, tire size, rear end gears. Won't go over about 8900 rpm which indicated as 80 (maybe 81). Tach bad? I am a good judge of speed and was probably doing 80 mph. I weigh less than 140 lbs fully dressed with helmet, etc.
Thu Sep 29, 2011 6:52 pm

Ossessionato
2009 GTV 244, 2005 BMW F652 CS, 2001 ET4 150
Joined: 28 Aug 2009
Posts: 2379
Location: Chicago, IL
 
Ossessionato
2009 GTV 244, 2005 BMW F652 CS, 2001 ET4 150
Joined: 28 Aug 2009
Posts: 2379
Location: Chicago, IL
Thu Sep 29, 2011 6:52 pm linkquote
What is a "stroked" motor?
Thu Sep 29, 2011 10:44 pm

Banned
2:6
Joined: 11 Jan 2007
Posts: 7906
Location: San Francisco
 
Banned
2:6
Joined: 11 Jan 2007
Posts: 7906
Location: San Francisco
Thu Sep 29, 2011 10:44 pm linkquote
stinkyjones wrote:
What is a "stroked" motor?
A motor that has a crank with a longer stroke resulting in larger displacement.
GT125-200 48.6mm stroke
GTS250 60mm stroke
GTS300 63mm stroke

the longer the stroke the lower the RPM where the piston will fly to bits. At 9000 RPM the 250 was right at the upper limit (18m/s) of piston speed. The 300 hits that same piston speed at 8550 RPM.
Fri Sep 30, 2011 1:56 am

Hooked
Vespa GTS250
Joined: 09 Jul 2011
Posts: 314
Location: Kansas City
 
Hooked
Vespa GTS250
Joined: 09 Jul 2011
Posts: 314
Location: Kansas City
Fri Sep 30, 2011 1:56 am linkquote
Please don't conduct these performance tests on a public road. Find a closed course.
Fri Sep 30, 2011 4:45 am

Hooked
09 Mana, 07 GT-200, 04 R1 SBK, 07 GT-60, 11 RSV4 Factory APRC
Joined: 21 Jan 2010
Posts: 227
Location: NYC
 
Hooked
09 Mana, 07 GT-200, 04 R1 SBK, 07 GT-60, 11 RSV4 Factory APRC
Joined: 21 Jan 2010
Posts: 227
Location: NYC
Fri Sep 30, 2011 4:45 am linkquote
I might run a test this weekend and put my GT200, Mana850 (factory), RSV4 Factory APRC SE and Toyota Corolla against each other to get some acceleration numbers.

Should be interesting. Guessing that the Vespa won't be the quickest but should be the most economical..
Fri Sep 30, 2011 5:15 am

Ossessionato
2009 GTV 244, 2005 BMW F652 CS, 2001 ET4 150
Joined: 28 Aug 2009
Posts: 2379
Location: Chicago, IL
 
Ossessionato
2009 GTV 244, 2005 BMW F652 CS, 2001 ET4 150
Joined: 28 Aug 2009
Posts: 2379
Location: Chicago, IL
Fri Sep 30, 2011 5:15 am linkquote
oopsclunkthud wrote:
stinkyjones wrote:
What is a "stroked" motor?
A motor that has a crank with a longer stroke resulting in larger displacement.
GT125-200 48.6mm stroke
GTS250 60mm stroke
GTS300 63mm stroke

the longer the stroke the lower the RPM where the piston will fly to bits. At 9000 RPM the 250 was right at the upper limit (18m/s) of piston speed. The 300 hits that same piston speed at 8550 RPM.
Thanks Patrick.
Fri Sep 30, 2011 7:26 am

Petty Tyrant
0:7
Joined: 11 Oct 2005
Posts: 32421
Location: Bay Area, California
 
Petty Tyrant
0:7
Joined: 11 Oct 2005
Posts: 32421
Location: Bay Area, California
Fri Sep 30, 2011 7:26 am linkquote
Lyns57 wrote:
Please don't conduct these performance tests on a public road. Find a closed course.
Please don't tell other adults what to do.
Fri Sep 30, 2011 8:47 am

Member
Joined: 23 Sep 2011
Posts: 12
Location: Haderslev, Denmark
 
Member
Joined: 23 Sep 2011
Posts: 12
Location: Haderslev, Denmark
Fri Sep 30, 2011 8:47 am linkquote
I am always up for a challenge Jess.

So here is the road:



And here is the bike on that very same road, just waiting to thrash you:



It is the Stelvio Pass in Italy. The bends you can see is just a small part of the pass. There are loads of hairpins on both sides of the pass and you just cannot see how steep it is. A great road to ride. Really good fun.

Steve
Fri Sep 30, 2011 9:13 am

Petty Tyrant
0:7
Joined: 11 Oct 2005
Posts: 32421
Location: Bay Area, California
 
Petty Tyrant
0:7
Joined: 11 Oct 2005
Posts: 32421
Location: Bay Area, California
Fri Sep 30, 2011 9:13 am linkquote
steveindenmark wrote:
It is the Stelvio Pass in Italy. The bends you can see is just a small part of the pass. There are loads of hairpins on both sides of the pass and you just cannot see how steep it is. A great road to ride. Really good fun.
It's on my bucket list, for sure.
  DoubleGood Vespa Design  

All Content Copyright 2005-2021 by Modern Vespa. All Rights Reserved.

Modern Vespa is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.

Shop on Amazon Smile with Modern Vespa

[ Time: 0.0384s ][ Queries: 5 (0.0165s) ][ Debug on ][ 209 ][ Thing One ]