Re:Re:Lacking power

Hi everyone,

I recently bought a MK4 Jimny that had been heavily customised by Buzz Special Vehicles. It's had front and rear recovery points mounted, underside protection plates as well as an ARB recovery bumper and winch. Unfortunately I'm finding the car to lack any sort of pulling power especially in 4th & 5th gear (I assume due to the addition of heavy extras). At 60MPH I also only average around 19MPG which is less than ideal. 

The car has had so many extras that I have no issue paying any amount of money in order to try and increase the pulling power and MPG. What would be your recommendations? I've been informed that a turbo with boost control or a supercharger would be the best bet. Also, with all the additional weight; bigger alloys and tyres, OME lift, ARB diff locks, recovery mounts, recovery bumper, protective plates and sills. Would you say there's extensive strain on the factory transmission and clutch?

We want to add a roof rack tent and various camping equipment to the rear so I imagine it's only going to get worse. 

Any help would be appreciated guys! 

 

Hi,

Thanks for that. Are you one of the workers at Buzz Special?

How would I go about getting that done? Would regearing it for let's say a longer 3/4/5th gear potentially make it worse? I'm guessing regearing would make it better for MPG but worse for pulling.

Mostly we want it to be fairly capable off roader for camping and green laning so if there's not a middle ground then we'd probably leave it.

Is fitting a turbo something you wouldn't recommend?

Regards

Hi,

No it hasn't been regeared. Is that your recommendation?

Hi,

Oh yeah! In the email of all the extras he mentioned you sourced a lot of parts.

So really then it's only regearing that's a decent option? Would that in turn hinder its off road capabilities?

Here's all the extras, minus a few he forgot haha.

OME (Old Man Emu) 50mm suspension lift

Pioneer extended brakelines

16" x 7" KMC alloys x 5 off in Bronze

235/70/16 KM3 BFG Mud Terrain tyres x 5

ARB side protection rails

ARB Winch mount system / recovery bumper

Warn VR EVO 8S winch with plasma rope and wired & wireless remotes with seperate in vehicle isolator through an Albright solenoid

ARB Intensity flood lights

Ironman front recovery points

ARB diff lockers to both Rear and Front Axles

ARB High Output compressor + air chuck

Rigid SRM Pro Midnight Edition reversing lights x 2 off



JIMNYBITS underbody protection:

Shock and Radius arm guards

Front diff guard

Fuel Filter guard

Transfer box guard



JIMNYSTYLE:

Electric window switch extensions

Rear defog wire guards

LED side indicator repeaters

Mirror covers with LED indicators

Rear LED tail lights

Forge Motorsport Stainless steel exhaust



BIGJIMNY:

Genuine rear camera

Genuine Brazilian Snorkel

Genuine big brake kit

Genuine armrest

Genuine front & rear speaker install kits with uprated Pioneer speakers x 4



Genuine parts rubber floor mats to front and rear and rear loadspace mat for when seats are folded



Full Ceramic Coating

l saw that one advertised for sale. lt sure looked impressive!

Someone has certainly tossed a fortune at that Jimny. l guess with only a N/A 1500cc it's going to struggle with all that kit.

19mpg is pretty bad, my Defender 110 will do nearly 30mpg at 60mph and that weighs two tonnes!

l guess already having flung £25,000 at it (according to the seller) the best thing would be to fit a turbo.

You'll not get enough extra power from the engine without doing that. Lowering the hearing would help, as already suggested, but then it will be screaming its head off at motorway speeds.

Hi,

Not sure if it sent my last reply so sending again.

He spent £20,500 on extras after he had all extras from the factory. Hence why I want to respect that and do the car justice.

I drive from the Midlands to Skye often as I have land there and rentals. Due to this I'd want better MPG but I don't want to ruin the off road capabilities and ultimately I want better pull, not less speed... I want both haha.

Unfortunately finding a turbo is difficult as there's no tried and tested. Would you recommend a standard turbo, turbo with boost control or a supercharger?

Your helps really appreciate

What does it weigh with all that stuff on it?

I was asked a few months ago about putting a turbo on a K15.......I've no idea what the insides of one of those is like...if anything like the M series the rods will be made of cheese.

It's hard enough and expensive enough to source parts to make an M series strong enough to last.....£400 for rods £700 for nuts bolts and studs £750 for pistons....manifold to source...exhaust to modify...cheapest part is a turbo......intercooler @£200 and if you can't do the work yourself then you've to consider the labour.....or having the tools and knowledge to actually do it.

I've attached an example of project drift.....huge turbo from a twincharged M series.....decided I'd like to have LPG for a bit of economy.....DI LPG won't support enough power in standard form.....so just a supercharger.....unless I change my mind again