Looking for higher cruising speed

[BigBoy]

Hey guys I'm really unsure of what to with my mb I want a higher cruising speed from my boy as I'm doing alot of highway driving to work and back and don't like my boy revving his nuts off at 110km my engine is the f8b (not the original motor) I think and I have a 4 speed in it ATM I'm wondering what options I have to give me a little bit more top end speed any help would be greatly appreciated guy

[Breyten]

Get tyres to the max allowable diametre?
Otherwise changing the final drive... If possible.

[BigBoy]

Yeah I'm kinda hoping someone can shed some light on me if it's possible to do that or how do other peoples boys go at 110 kmh

[Brayden]

Have you got an F8B gearbox? If not then that is an essential first step. Combine that with larger tyres and you can get the cruising RPM under 4000@100kph.

If you want it any lower than that then you'll need to look at a different gearbox. (Daewoo Matiz, Suzuki Swift, etc)

[Colin]

Sounds like you have the 550 box in it .put a 800 box in it or its time for a conversion

[BigBoy]

To be honest I don't no what gearbox it is il have a look tonight and see is there any markings on the gearbox that tells me if it's a f8b ?

[BigBoy]

what model daewoo matiz or suzuki swift would have the right gearbox for my 88 mb ?

[arklan]

kartman put a matiz gearbox in his f8b mboy
http://www.teammightyboy.com/forum/view ... f=1&t=1546

the cheapest and easiest to find tizzys will be 99/00 if you can get something newer then great.
its a lot of work to make it fit. the fun part is making the drive shafts fit

[BigBoy]

So is there a box I can get that just bolts straight in ? Is there anywhere I can get a new 800 box ?