BigJimnyMeet (North) 2024 (12 Jan 2024)
14th July 2024
Parkwood Nr. Leeds
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More Power for gen4 Jimny
- ollieICE
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I am considering options for getting some more power for my Gen4 Jimny. I have seen a supercharger kit from Rotrex that is supposedly applicable for the Gen4. Does anyone have experience with that kit and is able to swap war stories, problems, fuel consuption etc.? The Rotrex kit seems extremely expensive (8000 AUD) and I wouldn´t like to buy that on a whim and a prayer without having had any feedback....
Are there any other options that you know of, Turbo kits for example?
BTW I would like to thank the forum for a great piece of advice I got for a long range fuel tank for the Gen4, that turned out to be exactly what I was looking for!
Thanks,
Ollie
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- warrengti
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l wonder how much power the drivetrain is rated to. Also you might get a bit of wheel spin as it's only RWD for road use.
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- ollieICE
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I dont really need much extra power. I don´t carry a roof rack/tent, no rear passengers, no all steel front bumper, no winch, however I do carry an enlarged fuel tank (80L), built in compressor and the car has been raised to carry 31" tires. I have in all other respects made a point of travelling light.
The purpose of having extra HP would primarily be to make the car a bit more snazzy in town and on the highway. I have never noticed a lack of power when travelling on gravel roads and tracks and especially not when in low drive. However, I still need to see how well the car does in deep snow - the extra HP might come in handy then.
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- ollieICE
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I might go for this one if I find positive reviews!
Thanks again!!
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- ollieICE
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Guess, I need a review from a braver soul than me on how the car performs with a supercharger or turbo before taking this forward.
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- Roger Fairclough
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On another note, where did you get your long range tank from?
Roger
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ollieICE wrote: Thanks, I briefly considered this, but I sort of decided that swapping out a brand new engine would perhaps not be a logical first step for me....
I dont really need much extra power. I don´t carry a roof rack/tent, no rear passengers, no all steel front bumper, no winch, however I do carry an enlarged fuel tank (80L), built in compressor and the car has been raised to carry 31" tires. I have in all other respects made a point of travelling light.
The purpose of having extra HP would primarily be to make the car a bit more snazzy in town and on the highway. I have never noticed a lack of power when travelling on gravel roads and tracks and especially not when in low drive. However, I still need to see how well the car does in deep snow - the extra HP might come in handy then.
You don't need more power. You need to correct your gearing to accommodate the fitting of 31 inch tyres. You not only need to factor the basic diameter increase but also all the additional rotating mass you have added. You will also need to consider increasing the strength of your axle casings and also the half shafts and cv's. You may also want to consider a heavier duty clutch too.
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
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- ollieICE
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The long range tank comes from an Aussie company called The Long Ranger, they just released it and I am currently waiting for delivery. I found during the summer that the 40L tank was too small to be fully able to traverse the Icelandic highlands and I am not a fan of strapping jerrycans to the top, so this was a godsend.
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- ollieICE
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Btw, the alteration of the car in not my design. The car was altered by an engineering company called Arctic Trucks in Iceland, which has a long standing reputation for altering trucks/SUVs for mountain and glacial use. They have been altering Jimnys for the past 2 decades or so without problems, so I guess they have judged the alteration to be sufficient. I briefly considered altering it for 33" (better flotation in snow for glacial use), but they advised against it, in part because of the issues you mention, but also because they didn´t see the need (the 31" apparently provides sufficient flotation in snow to allow for glacial use with the car being as light as it is - We will see about that this winter).
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- Roger Fairclough
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Any chance?
Roger
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