I've just been browsing 4.2 modifications and came across the charger pulley swap that gives 40bhp more for £158.
Also a company recons they can put a 10% reduced diameter pulley combined with remap to get circa 615bhp.
Has anyone got any experience of this?
I'm not into tuning but £158 for 40bhp plus torque seems ok to me.

There is an old saying about things that look too good to be true.......... do they also make claims about improving the fuel consumption? 2020 Pangea Green 1st Edition D240 New Defender 110 is here and loving it
2018 Melting Silver Mini Countryman PHEV - soon to be replaced
2015MY Corris Grey SDv6 HSE Dynamic, the best car I have ever owned, totally reliable only a cou0le of rattles in 3 years, now no longer in my care
Also in my garage is a 1996 TDi300 Defender 90 County HT made into a fake CSW

Themoog wrote:

Also a company recons they can put a 10% reduced diameter pulley combined with remap to get circa 615bhp.

www.turnerdiagnostics.com
www.paramount-performance.com

I agree that some of the claims may be a bit wild but putting a smaller pulley on is the same as increasing boost on a turbocharger so it must do something..

The 612bhp is for the 5.0 my error.

I have an upgraded supercharger pulley (10%) and it was well worth the money.

I also have a remap. Well worth the money. (500hp)

Do I have 600+hp.. no.. Noisy black one

Only found one for £300 on there site with only 28bhp extra does not seem that good unless i missed it

https://rover.ebay.com/rover/0/0/0?mpre=ht...2238129634


This is what I have. Noisy black one

So thats the price for 6% pully supply only now i can see

Can anyone recommend a pulley upgrade brand for a 2015 scv8?

And do we know if the supercharger oil should be changed? I looked in the workshop manual, but there is no mention of it, nor even of what brand supercharger is fitted.

Any information on the supercharger maintenance would be great, thanks  --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport Supercharged V8 HSE Dynamic



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

The Supercharger is a Eaton TVS R1900 or it was on the original third generation AJ133 5.0L although it may have changed by now.

Cheers
Col

you can get supercharger oil and fill kit off ebay

So far these options look good for the pulley upgrade, in order of cost:

$195 @ Velocity AP: https://www.velocityap.com/product/jaguar-...er-pulley/

$215 @ EuroToys: https://www.eurotoysltd.com/product/range-...lley-5-0l/

£299 @ Paramount Performance/Viezu: https://www.paramount-performance.com/rang...ulley.html

got a very snotty email reply from PowerHouseUK, needless to say, they're not getting my business.


I take it the quality is pretty much the same from these tuners? --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport Supercharged V8 HSE Dynamic



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

I've toyed with the idea of a trip to David Appleby Engineering for their pulley and ECU (£1248 fitted) as they are only eight miles away. However, will the gearbox and the rest of the transmission cope with 600 BHP and a hike in torque too?

http://www.davidapplebyengineering.com/sho...odelId=145 There is no replacement for displacement - W O Bentley

MY2013 5.0 Supercharged HSE L320

this is why I'm only keen for the pulley upgrade - a modest power upgrade (20-30hp), but improves the driveability. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport Supercharged V8 HSE Dynamic



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ