hi, i have been looking in the FAQ's and found that you can fit a punto 55 gearbox to my 1999 mk1 seicento. however the final drive isnt as good?

what i basicly want is a ratio that is more helpful for top speed.

so is there a 6 speed box that can do this? or any way to upgrade my 5 speed to do this?

any help is greatly apreciated

In order for changing the ratios to be worthwhile, you've really got to have an engine that's capable of delivering the power or you'll not go any faster.

Only consider this if your engine will rev out in 5th.

ive only ever got 6500rpm in 5th. that was 105 on clock.

however im not looking for anything faster really. i really ment a higher cruise speed. so at 3500rpm it would be doing 70/75 instead of 60.

What engine is this? I know that my 1242 would reach the red line (at 6k) at 120 mph.

Standard 1108cc =)

Luke.

Slipping clutch?

What you want is probably possible by using a 6 speed box and increasing the overall ratio, but it isn't easy.

I always found that the big issue with NA 1100s was that some chump in a BWM yould pop out in front of you at 80, you'd have to slow, and when you came to accelerate you'd have the choice of buzzing it in 4th or lumbering up to 90 again in 5th: there was no torque there at all, either way. So, for me, overgeared in top.

got 1108 spi engine. so you would say not to change ratios?

i just wish i could cruise at 70 without the 4250 revs.

The six speed is even worse, so don't go there. Most of the Puntos run on 14 inch wheels so their final drives are optimised for them, not your 13s.

Cheers

D

i have 14"s got a abarth sei

The following link may be relavent...

https://www.fiatforum.com/lets-talk-fiat/139359-please-help-id-my-gearbox.html

Well i can tell you the 6speed is no good for what your trying to do, it will infact lower the top end as its a close ratio box. I was thinking about putting one on my turbo cinq but having driven a punto with the 6 speed box its defo a no no.

To be honest mate, the revs at 4250 is no biggy, you still get good mpg, if its noise your bothered by invest in some sound deadening and plaster the inside of the car in it.

cheers. will keep it in mind. probably willg et sound deadening tbh easier

Frost do some stuff (I think Aaron used it on Blue) which seems to be pretty good (not cheap though).