rocklobster

can eny one help me i am running 195 80 15 / 27" when on the road and when i go offroad (payandplays etc) i am running 215 80 15 / 29" will be going bigger in the future as i am 10mm from the garage roof now so if i get a rocklobster 6.5.1 it will be amazing with 215 80 15 / 29" tyres in 4L offroad but when on the road with my 195 80 15 / 27" in 2H what will my jimny drive like with the 6.5.1 tbox the reason for the to sets of tyres at the moment is that the 29" tyres are killing the gearing in H/L as thay are 4" bigger than standard but on 27" tyres the gearing is better on the road/offroad as thay are only 2" bigger than standard but still not happy haha.

what info can you guys give me thanks

ps would it inprove mpg with 6.5.1 tbox on 27"/29" ect

THANKS

in low with 215 80 15 i bet its amazing mate

enyone else running a rocklobster

I run a Rob Storr 6:1, believe me you do NOT want a 6:1 box with 195 road tyres, it'll do 60mph flat out. Low box is great, but I run 750/16's (32" tall, similar to 235/85/16's) and i rev out in 5th gear on the road.
4:1 is the box to go for and even then you'll be a little undergeared on your road tyres.

someone correct me if I'm wrong, but I believe a 4:1 box is 10% lower in high range whereas a 6:1 is 23% lower in high range - Ive had both, 4:1 was right for 215/80/15's on the road

Gary

I agree with the above 4:1 is perfect.

Off road amazing in low, you run out of traction before you start stalling.

On road I can do about 70-80mph (foot to the floor on a flat road no head wind!!) at just above 4k ish.

Oh and this is on 33's.

i am confused haha 6.5.1 is good for 31" upwords 4.1 is good for 31" below

when on 195 80 15 i do 50mph at 3000 rev and thats it for me im not a boy racer haha 4.1 is what i should go for is it so in the future if i put 31" on it will be fine or will i need 6.5.1 do rob do a 4.1 tbox

A 4.1 will be fine (speak to Redacted as he makes them out of an 410 + 413 box)

Ideally a 5.1 is perfect....a little lower but wont notice much if you go an inch or two bigger on the tires but these are like rockin horse poo to get

Sent from my GT-I9100 using Tapatalk

6.5 Rocklobster with 33"x12.5" tyres

4600rpm in 5th gets me ~95 kph

Yes stick to a 4:1 box .

Gary