A place for more technical discussions. Please make sure you post in the correct section on the site, this way it keeps the site tidy AND ensures you get a more relevant answer.
Was mainly interested in the upper end road speed (w/rocklobster) as a daily driver, would be nice to sit on 100kmh at roughly 500+ less rpm.
(The Jimny is currently bulletproof on the logging trails in low 4WD even in middle of winter).
I've seen quite a few requests like this over the years and the aim is usually to reduce the fuel burn, the point you're missing is that Suzuki's engineers designed the engines to rev, to produce the power they needed, and geared the vehicles to suit, the only time you need to regear is when you change the wheel/tyre size and for most folks that's a larger tyre, and that's the scenario a rocklobster is designed to be used in.
But there is a M18 engine here so I can see the need for lowering the rpms. I got a m16 myself so I see no need to increase the highway rpm as there is power at lower rpm to keep the speed up. I had low gear trailgear set with 17% reduction in high and it was not good on the highway even with 235s. But great offroad. Next time I am buying some other kit with 7 or 10% high range reduction.
currently on the original gearing with 235s and it is OK with the car only, but a bit much shifting gears going up hill with the trailer.
And we do have som hills here in Norway..
Traditionally I believe a rock lobster was just using the transfer case out of an sj410 in either an sj413 or a gen3. It's become more widely used for any transfer with any lower gear sets.
Temeraire R.E.D Retired Extremely Dangerous
Bellerophon daily dose of disappointment.
Leviathan 155 prado shortie. Aka the biggest small car in the world.
Calling every low geared tranfser case a rocklobster is as accurate as calling every 4x4 car a Jeep.
I wont do it
Bigger wheels is the easiest way to get the highway rpm down.
low range only reduction is only available as low gear kit for the existing transfer case, no easy solution by switching the case out as far as I know.
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