OP
@shepys avatar
UTC

Hooked
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 349
Location: Burnham on sea, Somerset England
 
Hooked
@shepys avatar
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 349
Location: Burnham on sea, Somerset England
UTC quote
mallossi cylinder kit for my Vespa p200e or my Vespa T5. Witch is better.
@mjrally avatar
UTC

Veni, Vidi, Posti
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 59 Ser 2, 65 Silver Special, 90 V5N 50, 2015 HD Road Glide Special
Joined: UTC
Posts: 5142
Location: Oceanside, CA
 
Veni, Vidi, Posti
@mjrally avatar
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 59 Ser 2, 65 Silver Special, 90 V5N 50, 2015 HD Road Glide Special
Joined: UTC
Posts: 5142
Location: Oceanside, CA
UTC quote
I prefer 200's because the gearing is already set up for higher speeds. Just slap on the cylinder and go. With 150's, any cylinder is going to be limited by the gearing so youve gotta factor in those added costs/ labor as well.
UTC

parallelogramerist
Joined: UTC
Posts: 5243
 
parallelogramerist
Joined: UTC
Posts: 5243
UTC quote
I feel as though the T5 engine has a much better design to handle the power of a cylinder kit. For instance the T5 has a much larger and strong flywheel side bearing. No need to install a short 4th T5 gear, cause it already has one...you should swap in a clutch that has either 21 or 22 teeth though, but that's easy to do. The 172 Malossi can be an absolute beast of a kit! I'm not a guy who really likes cylinder kits too much, but i absolutely love my tuned T5!
⚠️ Last edited by whodatschrome on UTC; edited 1 time
UTC

Hooked
px 125 disc
Joined: UTC
Posts: 314
Location: Essex, GB
 
Hooked
px 125 disc
Joined: UTC
Posts: 314
Location: Essex, GB
UTC quote
whodatschrome wrote:
I feel as though the T5 engine has a much better design to handle the power of a cylinder kit. For instance the T5 has a much larger and strong flywheel side bearing. No need to install a short 4th T5 gear, cause it already has one...you should swap in a clutch that has either 21 or 22 teeth though, but that's easy to do. The T5 also has a shorter con rod, so in theory there should be less side load on the piston and cylinder wall while the engine is running (especially at high RPMs). The 172 Malossi can be an absolute beast of a kit! I'm not a guy who really likes cylinder kits too much, but i absolutely love my tuned T5!
Am I being thick? I thought shorter conrods increased the side load? If I've got it wrong, my apologies but could do with an explanation to sort my brain cells out.
UTC

parallelogramerist
Joined: UTC
Posts: 5243
 
parallelogramerist
Joined: UTC
Posts: 5243
UTC quote
andyx wrote:
Am I being thick? I thought shorter conrods increased the side load? If I've got it wrong, my apologies but could do with an explanation to sort my brain cells out.
I double checked, and i'm wrong. You are correct there Andy! I was always under the impression that the short stroke put less side load on the piston, but it does not! I'm going to edit my posting above so that it doesn't confuse anyone else.
OP
@shepys avatar
UTC

Hooked
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 349
Location: Burnham on sea, Somerset England
 
Hooked
@shepys avatar
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 349
Location: Burnham on sea, Somerset England
UTC quote
whodatschrome wrote:
I double checked, and i'm wrong. You are correct there Andy! I was always under the impression that the short stroke put less side load on the piston, but it does not! I'm going to edit my posting above so that it doesn't confuse anyone else.
It's ok to make mistakes and it's good to say you was wrong. A lot now a days will not say they was wrong. 👍
UTC

Hooked
px 125 disc
Joined: UTC
Posts: 314
Location: Essex, GB
 
Hooked
px 125 disc
Joined: UTC
Posts: 314
Location: Essex, GB
UTC quote
whodatschrome wrote:
I double checked, and i'm wrong. You are correct there Andy! I was always under the impression that the short stroke put less side load on the piston, but it does not! I'm going to edit my posting above so that it doesn't confuse anyone else.
Thanks whodatschrome, good to know I'm not going senile ( well not much anyway)
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