I want more power to my volvo 340. is it easy to change 1.4 to 1.7? how much horepower does 1.7 liter engine have? or is it easier to tune my 1.4liter?

can be done quite easily, but insurance will rise alot, the 1.7 isnt a *lot* more powerful and is a *lot* less reliable. more fuel economical thou.

It would be better to "tune" your B14.
Like 5lab says the b17 lacks reliabilety.
And when you have a engine whose run less then 150.000 kms you can consider putting a sportier camshaft in it.
Also consider the compression.
Maybe to 10:1 or like me to 10,5:1 but you must drive on 98 octane fuel then .
And a alterd weber carberator from a ford V6 engine.
Or set the std. carb. a bit ritcher.

If you have an engine whos run more thene 200.000 km's really consider a fresh engine from the scrapjard.
Becoase tuning a wornout engine is useless
Here in the notheren part of holland you can get an complete B14 engine with +-100.000 km for +- 100/200 euro.
Mostly driven by elderly poeple

But ofcourse these cars where build in my Country.
So parts are easely found.

Greets
Andries

is it hard to change CVT to a manual gearbox? and another question is that renault 1.4 has a turbo version, how does it fit to volvo 1.4? hope you underrstand my questions

apparently the turbo wont fit to well - easier to put a b230 into a 360 - more powerful.

cvt -> manual would require new clutch, driveshaft, gearbox, lever, pedal, box and diff. probably best just to buy a new car.

CVT to manual... I wouldn't do that.... As 5lab said, buy a new one!

the problem is that my volvo has a very good body, almost no rust! there are very few in so good condition 300volvos in my country! thats the reason why I would like to put a manual gearbox on my volvo!

I suppose it could be done but it would mean replacing the entire drivetrain from the engine backwards. A massive amount of work even assuming you could source the parts if decent 340`s are as rare as you say.

You`d be much better off investing the time that would take in looking for a decent manual car - a 360 if you want more power.

As for tuning the engine - if you some how managed to get some serious HP out of the engine, I doubt very much that a CVT transmission would cope with it, so you`d be stuck with hotting up the engine AND replacing the drivetrain

I love driving my 1.4CVT but I wouldn`t have bought it if I wanted to tear around upsetting Corsa drivers at traffic lights......

Regards

Will

but how will B230 fit to it?

b230 is only really suitable for a 360 - a 340 has a different drivetrain which would just DIE with that much power