Cylinder upgrade

[Jono]

Looking for a little extra pulling power up hills , not really requiring extra speed from my GP 150 (Indian) running AF 42mm and 22mm jetex.
As a low cost option is it worth looking at a 175cc Iron Cylinder. If considered a viable option any views regards a Supplier of a good value bit of kit.
Views and advice appreciated.
Jono

[Donnie]

Id say its definitly worth it, a well set up 175 is a great low cost boost for a scooter.

Remember you may have to look at gearing though that could be as simple as a front sprocket change.

I don't know about specific dealers but I would be looking for a genuine sil barrel, preferrably a genuine sil head (harder to come by than the barrels) and the thin 2 ring piston, usually Escort if memory serves unless you can get hold of the asso version, but im led to believe they are rare these days.

[missing lynx]

why don't you just get a 175 conversion piston and get your barrel rebored but if you clean up your ports do that first

[Jono]

Hi missing Lynx
Had thought about that some time ago and was quoted a silly price, appeared cheaper to buy a kit.

Maybe I should shop around outside of my local area for a better price - any idea what you would believe to be reasonable for such a rebore and piston?
Jono

[hullygully]

REBORE & TUNE UP @ AF's, I THINK MY LAST ONE LAST YEAR WAS £160, + PISTON EXTRA

[Jono]

Thanks all for info , greatly appreciated.
I assume as well as piston and rebore to 175cc a new 175 cylinder head will be required or can you also get 150 head re-worked?
Jono

[hullygully]

yup

[bolzenanker]

How about a Gori 175 kit from Rimini at £190 including barrel, piston and head. Seems good value?

http://www.riminilambrettacentre.com/en ... ccolo.html

[hullygully]

why go for the Gori 175 kit when you can have the 200!! I'm well chuffed with mine after some UK tuning....

[bolzenanker]

Agreed, £50 more for the 200 Sport and £100 more for the 200 Race.

[Donnie]

Does the 200 gori fit on small blocks then?

[bolzenanker]

Yep

[Donnie]

if the price compares well to a standard 175 then i guess that would be a good way to go for the op then.