Hi all,

Thinking of getting a 4.2 SC and was hopping to convert it to LPG.
Some have it on here and all seems good, older posts say it's a disaster!!

Which is it, ok or a disaster lol

before i got my diesel sport i did look into getting the sc and lpg it but after a months off searching decided it was a bad idea, i think a better option is the 4.4 on lpg, i have had one off them with no issue s

Think the valve seats don't cope well on the sc. You can fit a lube system that helps but I think it's still a risk. My Local installer won't fit to the sc for that reason. Works great on the 4.4 and makes it cheaper to run than the diesel. Range Rover Sport HSE DYnamic SDV6 Velocity blue 2020 MY
Range Rover sport HSE Dynamic P400e Silver
Range Rover Sport 3.0 SDV6 HSE Dynamic 2016 MY
Range Rover sport 3.6tdv8HSE 2007 Gone
Range Rover sport 2.7tdv6SE 2005 Gone
Range Rover sport 2.7tdv6SE 2007 honey
Range rover Vogue 2005 4.4 - GONE and missed
BMW 535d M sport 2006 - GONE not as missed
BMW X5 4.4 2004 sport - GONE

Hi,

I have my heart set on the SC because I have had NA case before, M3 etc and could not live with them. I need turbos like on diesel but the RRS diesel won't have the get up and go I like.

Has no one ever had a 4.2 SC on LPG without the valves going??

Got to ask how much get n go do you want from a +2t truck with brick like aerodynamics?? Why not get a remapped tdv8?? 2010 TDV8 Bali Blue........ "Alive Tuned"

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Lol I had just started looking at them lol
I currently have a jaguar XF, 30S diesel, 275 BHP 600 torque and love the acceleration of it.
I wounded how a mapped TV8 would compare?

I've currently got a thread brewing over on LPGforum about this exact thing.

Check it out

http://www.lpgforum.co.uk/viewtopic.php?f=...afc9e714a1http://www.lpgforum.co.uk/viewtopic.php?f=...afc9e714a1 Currently enjoying 60mpg in a Audi A3 Yawwwwn

I get more and more feeling LPG is just not possible on a 4.3 :0(

Here are some figures, please feel free to rip them apart

4.2 SC = petrol 17 mpg ( good day )
4.2 SC = LPG 11 mpg

300 miles per month

Petrol standard

300 miles ~ 17 mpg = 17.65 gallons
17.65 gallons x 4.5 = 79.4 litres.
79.4 litres at £1.35 per litre = £107.19

LPG

300 miles ~ 11 mpg = 27.27 gallons
27.27 gallons x 4.5 = 122.71 litres
122.71 at £0.63 per litre = £77.30

Difference is £29.89 per month saving on LPG.

£2500 LPG conversion cost ~ £29.89 per month = 83.64 months to break even
That's 7 years???u

i have just sold my tdv8 mapped and there wasnt a great deal differance between my tdv8 and my mates sc so start looking for a tdv8 mate

dont lpg a sc ,a few years ago mine went wrong  silverRRS 2.7 TDV6 22"WHEELS FULL COLOUR CODE,STEPS,REMAP..gone
Rimini red rrs 2.7 tdv6 steps. Full c code. Recon engine!!loved but!gone ,thank god !!
Gone rr sport supercharged. Loved but 11mpg !!!
current,triumph stag mk2...current bmw 325 sport convertible

TDV8 with a remap all the way  Gone but not forgotten, 2005 RRS SC first edition, BMW 2010 Z4,TVR Tamora, TVR Cerb, MERC SL 55 AMG, E46 M3, Z4, Jag S type R, Skyline R33 GTR 640 bhp, Evo FQ 400, L322 RR, X5, Lotus Esprit V8 twin turbo, Lotus Elise 135r, Nissan Murano, Honda S2000, 911, Boxster s...and a few more

forgive me for being so blunt - how can a diesel with a remap compare to a petrol Supercharged  16MY Estoril Blue SVR.............
17MY Autobiography Dynamic - Corris Grey - WOW.
14MY Autobiography Dynamic - SDV6 - Fuji White
12MY Autobiography - SDV6 - Santorini Black - Dual View - Rear Entertainment - Sunroof.
12MY Autobiography - SDV6 - Orkney Grey - awesome ;(
2005 Java Black - 4.2 V8 Supercharged First Edition- will never be forgotten ;(

More torque and twin turbos....ask anyone that has had a bmw 535d..................not as fast 0-60...but in the gears.... Its like the modern hyper cars...1.6 engines with electrical motors...who would of thought they could compare with V12s etc......

RR 4.2 SC 405 lb/ft...385 bhp
RR TDV8 with remap up to 700 lb/ft (more likely 600 though) circa 300 bhp Gone but not forgotten, 2005 RRS SC first edition, BMW 2010 Z4,TVR Tamora, TVR Cerb, MERC SL 55 AMG, E46 M3, Z4, Jag S type R, Skyline R33 GTR 640 bhp, Evo FQ 400, L322 RR, X5, Lotus Esprit V8 twin turbo, Lotus Elise 135r, Nissan Murano, Honda S2000, 911, Boxster s...and a few more

Do NOT lpg a supercharged. If fuel cost is a concern then it's not the car for you. Though it does make you smile