Can i put a Turbo onto a Gas car

[Vkcalais8]

Heyy i got vk calais 5.0 litre, with twin gas reaserch..

Can i put a t3 / t4 turbo on and whats involved????

[mattman]

not healthy with gas research/carby mixers. Apparently possible but if you backfire down the intake you're in trouble.

Direct injection is the way to go, and properly tuned you should get exactly the same power.

[Vkcalais8]

what ya mean directed injections explain ???..

[mattman]

rather than mixing the gas in the carby mixer on the air intake (prone to intake backfires), it uses your normal EFI system. It is more expensive to set up but it is a better system and there's less power loss. Also as i said it's near essential for forced induction.

[Vkcalais8]

how much u reckon it would cost to do that, i got 155 rwkw atm how much more would i gain...

so it wouldnt be a good idea to turbo ????

[mattman]

You probably wouldn't gain any,,, and it'd cost a couple g i would guess...

*if* you went down the path of running bigger boost, you could probably get away with more before cooling (when running gas that is), but that's about it.

[Vkcalais8]

yeaa im not lookin for heaps of boost, just love the sound of turbo`s and v8s so i want to combine them together...

what do i do about my twin thottle bodies..??
i dont know much about turbo`s so what will i need and whats involved in instal`ing one,

[J_D]

You will loose a few kilowatts converting to LPG on an NA engine but if you turbo it you will get more power out of it than a petrol/turbo engine because LPG has a higher octane than petrol allowing you to run more boost without damaging the engine. You would probably also have to get the engine converted to run on ULP if you havent already or run a lead substitute injected direct into the manifold.

[vlv8vic]

my carby datto was turbo'd for a while, what a prick to keep tuned...

[Stewart1000]

yeah wind the boost.

anyone know the octane equivalent of LPG?

there should be huge gains to twin turbo it, and look pretty nice.

if its straight gas get your cam grinded to get less overlap, get as much comp as you can, that's the way to go, a good lpg cam is a one with harsh and fast lifts and no overlap. get a high energy coil, LPG is harder to ignite so you want a good spark, good plugs and leads.

i'd like to see it done

[Vkcalais8]

yea its straight gas, so would it be a big job???.... im realy keen to turbo it... so can some one tell me what parts i`ll need

[Stewart1000]

well you'd want to go twin turbo or there will be alot of lag.

tuebo('s) oil and cooling lines, plumbing, fuel system bits (not exactly sure what parts)

do you want to run an intercooler?

[JD]

do you want to run an intercooler?

wouldn't he have to with a twin turbo setup due to the heat they would produce?

[Vkcalais8]

yea wat size turbo`s if its twin, ...??

[Stewart1000]

aw not sure on the turbo size, somethign liek a t2 and a t3 would be killa.

dont know if you would have to cool it, but probably best to do it anyway.

check out capa i think its www.capa.com.au
if its not just google capa supercharger
thay will probably have a setup for it.

im sure you could make huge advantages of running gas, as the carby is only acting as a throttle body, you could no doubt do somethgin special with the carby

[mattman]

LPG RON is over 100... 102 or something. You'd wanna make sure your engine is in good nick because LPG burns hot...

[greenfoam]

LPG burns cooler than petrol but the engine might still get slightly warmer because when petrol vaporises it sucks some heat energy out of the engine

[Stewart1000]

yeah good point greenfoam.

but i think that gas might do an even better job, you will notice on gas converters they actually plumb an engine cooling hose to it, not to cool it but to warm it up otherwise it would freeze, you will notice they are quite cold when running.
so it might even be better...
anyone got an opinion on that?

[Stupa]

talk to a gas reasearch fitter but im pretty sure they are desinged to run perfectly with forced induction. it runs COOLER than petrol. and a big backhand to anyone who thinks petrol goes harder. gas has a HIGHER octane rating, the loss is because the system is tuned to run petrol, the leser fuel

[Vkcalais8]

thanks fella`s for every ones input i will update use all with progress and take some pics soon

[jay019]

a big backhand to anyone who thinks petrol goes harder. gas has a HIGHER octane rating, the loss is because the system is tuned to run petrol, the leser fuel

I agree totally. We had a VC on gas/petrol that ran like a slug on gas but picked up a bit on petrol. This was obviously because there is no ECU. Our R31 has an ECU and we notice that it runs nearly the same using either petrol or gas. On gas its its mauled petrol powered R31's & VN's (well the v6 vn's)