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RB30 - is it worth building performance but running straight LPG?

Matty 31

By Matty 31,
in Engines & Forced Induction

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Bl4cK32 Grand Master

Bl4cK32

Posted
Posted

Hey thats one of my special mods....don't give out all my secrets :) Good thing Shaun is doing some minor work to finish it....and NO we dont need to see anymore pics..:(

Back on topic

edit/ How about some photos of the 7 pages worth of problems wrong with your new paint job then, eh?...lol

slip Mentor

slip

Posted
Posted

not that much work.... if you just run a petrol rb20det you dont have to change anything. the cost and hassle of doing it would offset the cheaper price/litre of lpg. if it was an n/a v8, id say go for it, but not on an rb20det.

Cubes Grand Master

Cubes

Posted
Posted

Slip,

It really depends on your plans later down the track.

If you are looking at doing the usual mods Powerfc, injectors, big fuel pump etc it will work out the same price to simply keep the stock ecu, slap a gas research carb in there and twin B2 gas convertors. Build the motor with a high static comp pump some nice boost in there and there's no reason why you won't crank 250rwkw on a RB20t.

The higher static comp on the rb20 will help out with the off boost torque and spool rate of the obviously large turbo.

Saying that though you would really have to look in to it properly as unexpected costs always arise. :D

http://autospeed.com/cms/article.html?&A=0043&P=1

I've got a Zoom magazine here that has an old 250 XE Ford.

It is making 380rwkw with 1.72bar - GT40, 8:1 comp, 1 x 480cfm Gas research carb, 2 x B2 Gas convertors.

It also states that the 250 is able to take a lot of ignition timing - 22degree's with is impressive when you consider the boost and how volatile the 250's are in std form.

Running a near stock static comp for the 250 and running that much boost is pretty damn impressive. Any one who has fiddled with the old 250's will know how easy it is to get them to detonate.

If I were to build a rb20t on gas I wouldn't think twice about using a 10:1 static comp, a GT2535 pump the boost in to it and make a nice 240rwkw. :(

Would be quite a nice package. Hey maybe just use a RB20DE. :)

Some one willing to fiddle with a RB25DE or RB20DE to see how well it really works? :D

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