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So I want to build a fast T5 engine but it seems that the options are limited for kits etc. What have you done to yours and how did it work out?
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Don't do it. T5 engines rare as hens teeth.

Why don't you build a 200 engine and put it in frame?
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Most people just kit them and stick on an expansion. Makes for a fun and quick scoot and still reliable.

My 200 polini was definitely faster but not as much fun
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Solo Rider wrote:
Don't do it. T5 engines rare as hens teeth.

Why don't you build a 200 engine and put it in frame?
I've got a T5 engine sitting, don't have a 200.

I am thinking kit, crank, reeds, and exhaust but not sure what's the best mix of parts out there .

Ricky
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Oh no grinding out the cases too. No way back.

Well a malossi kit plus full circle crank, reeds ph carb around 30 to 32 mm and upgrade the flyweel side bearing. Exhaust of choice and depending if you want acceleration verse top speed either a stock cost clutch or 22 tooth one.

And dare I say it grinding of the case's.
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I will be getting this one built by a scooter shop as I don't want to add it to my shelf of shame (the pile of cases I have destroyed over the last 4 years).

Thinking of pulling the motor apart this week and getting the cases vapour cleaned as they are hand painted black at the moment, then off to the shop for a build replacing all the bearings and any crush drive or gear parts, matching the cases to Worb5 Malossi Kit, Worb5 full circle crank and a reed block to take RD350 reeds and a 30mm carb. Not sure if along stroke crank will add anything ?

Finish it off with a decent clutch BGM if the do one to fit , S and s exhaust and a vepatroic or picanso ignition. Aiming for a 20bhp motor.

Ricky
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I'm not sure what bits you can get for the T5 engine, that's one of the reasons I suggested a 200 engine, as far as super tuning, it's a more conventional and tried path.

Funny you should say about paint, at the moment thinking about painting the 166 barrel and head black to get rid of the heat.

One last thing again another long story, get the garage to check the clearance from the main bearing (clutch side on crank) to retaining circlip It may need a shim in there to close the gap. 2 engines of mine did and they not only had an age difference of about 20 years, one was a Spanish import.
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I just got to ride a T5 a few weeks ago(someone snuck it in the country from Canada). What a fast, fun scoot it was. If it were mine, I would not change a thing other than a pipe and maybe top end. Actually, I wouldn't do that either, I'd leave to hell alone and ride the wheels off it. But it"s your scoot.
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T5 tuning
My T5 has a malossi sip 172 top end, worb5 crank , 24g carb using a polini Venturi kit all that breathes through a Taffspeed pipe. It's a thug
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Re: T5 tuning
sawyer280769 wrote:
My T5 has a malossi sip 172 top end, worb5 crank , 24g carb using a polini Venturi kit all that breathes through a Taffspeed pipe. It's a thug
What head and clutch are you using ?
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T5
Reprofiled head and 21 tooth cosa with sip reinforced basket
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sawyer280769 wrote:
My T5 has a malossi sip 172 top end, worb5 crank , 24g carb using a polini Venturi kit all that breathes through a Taffspeed pipe. It's a thug
Did you get a long stroke worb crank or their flowed one?
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T5
The serie pro flowed one[/code]
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A long stroke crank in a T5 should be punishable by death. The short stroke is the whole point of a T5.
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It's still short. 54mm
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Not like I can afford one anyway
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On my T5 is a Molasssi 172. It has a MMW head, expantion pipe, RD 350 reeds, series pro crank, vespatronic, full DRT close ratio transmission including the 37tooth 4th gear, 108mm DRT clutch (21 tooth for race, 23 for street), 39 mil Keihin carb. I picked all quality parts that work well with each other. It runs great, and is quick enough to run down to the grocery market and back before the milk has time to warm up.
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ricky cantley wrote:
Aiming for a 20bhp motor.
Take it to Germany... they're all 20hp!
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Ginch wrote:
ricky cantley wrote:
Aiming for a 20bhp motor.
Take it to Germany... they're all 20hp!
Laughing emoticon Laughing emoticon Laughing emoticon
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Ginch wrote:
ricky cantley wrote:
Aiming for a 20bhp motor.
Take it to Germany... they're all 20hp!
Laughing emoticon Laughing emoticon Laughing emoticon
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ricky cantley wrote:
I will be getting this one built by a scooter shop as I don't want to add it to my shelf of shame (the pile of cases I have destroyed over the last 4 years).

Thinking of pulling the motor apart this week and getting the cases vapour cleaned as they are hand painted black at the moment, then off to the shop for a build replacing all the bearings and any crush drive or gear parts, matching the cases to Worb5 Malossi Kit, Worb5 full circle crank and a reed block to take RD350 reeds and a 30mm carb. Not sure if along stroke crank will add anything ?

Finish it off with a decent clutch BGM if the do one to fit , S and s exhaust and a vepatroic or picanso ignition. Aiming for a 20bhp motor.

Ricky
I'd same set up as sawyer,serie pro flowed crank,172,taffspeed and 24 carb,clocked by mate in car behind me at 88mph on the flat,fast enough on 10 inch wheels
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What's your jetting with the taffy? I just fit one. Think Iv a 128 main in there
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jackson85 wrote:
What's your jetting with the taffy? I just fit one. Think Iv a 128 main in there
Sold it 2 years ago mate but of top of my head a 125 main,never any probs with it and went like fuk
⬆️    About 1 year elapsed    ⬇️
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UTC quote
Solo Rider wrote:
Don't do it. T5 engines rare as hens teeth.

Why don't you build a 200 engine and put it in frame?
Looking through my old posts and found this comment, ended up putting the T5 engine under the work bench untouched and building a 200 so good advice and I now have a spare T5 unit.

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