Fitting a Turbo or Supercharger to Gen4

In our 2016 car coming back from Pitlochry to Aberdeenshire this February around 10:30 am, we went round a left hand corner a bit sharpish at 10C and dry but nothing daft and the car started drifting to the outside of the curve just a touch. The Stability Control system then pitched in with no warning, the front end rolled with the front offside suspension on the outside of the curve going down and the front nearside suspension raising without warning.

The car then started skidding onto the outside of the bend. I just kept my cool, neither braking or moving the steering wheel. The car then regained grip in a very worrying manner.

For any 150 type bhp output, I would suggest a suspension redesign would be needed as well as a stability system tweak. An Electronic Stability system was added to the Gen 3 cars if I remember correctly in around 2016 or 2016.

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lt was about right for a "hot hatch" of the time.

It was about right for a semi warm hatch. MG Maestro Turbo was more like 6.9sec 0-60mph. And frankly hot hatches simply were not the pinnacle of performance.

Early 1970s muscle and pony cars where able to run well into the 13's on a 1/4 mile (in the 5's 0-60mph), modded a lot faster. So mid 8 sec is not overly overwhelming.....

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However we're talking about putting 150bhp through the rear wheels of a lightweight 4x4 with a high GofG and roly-poly off road suspension, in RWD mode.

I think you worry way too much. You said on another forum you have never used full throttle in your Defender D250 diesel. Which also isn't really all that speedy....

150hp is nothing in something like a Jimny. Must be 1000's of people running way more in lightweight vehicles including lots of 4x4s. And as I said earlier in this thread, Jeep sold the Wrangler weighing hardly any more with 170hp and RWD. Lots and lots of V8 powered Land Rover's about too and an 80" Series is probably lighter than a Jimny.

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Someone needs to try it, and report back on here if they are still alive.

eh? There are several videos of people driving the 165hp Twisted Jimny. All have survived the savage unbridled power....

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Our standard 2020 Jimny loses traction on corners in the dry lf you're not careful.

Which as said in your previous thread is either something wrong or driving style. Unless trying I've never had loss of traction in mine and I really do drive it hard.

My comment about it being an accident waiting to happen is not so much to do with the power being added to the car but more can the driver handle the Jimny that they may be pushing more than a standard one. Many people that get into Jimnys are either new drivers or have come from more modern cars so are often the ones complaining of a standard Jimnys 1980s handling and yet they are the first people to go wahoo a Turbo is just what I need in a car they can't handle from stock. This is not a dig at the jimny or a modified one at that but you can't change what the car is which is fundamentally still a 1970s design yet people want it to be like a 2023 G wagon.

Regarding full time 4wd in a Jimny, this could easily be achieved by making up a front prop with a viscous coupling in it. It's on my want-to-do list.

l think this would be a great modification. l am surprised nobody has ever offered it as an aftermarket upgrade on the Jimny.

lt would certainly help if you were planning to increase the engine power, but would also make the Jimny better on road in conditions such as rain, when you can't engage 4wd on the standard vehicle.

If the tyre wear between front and back is even, then, for short periods, you can engage 4 wheel drive on wet roads. The caveats are "short periods" and "wet roads". I modified my LC so that a simple switch on the dash engaged 4WD so that flooded roads could be driven more safely. Once through the hazard I would switch back to 2WD. If you feel a vibration whilst in 4WD, you have gone to far so switch back to 2WD.

Roger