gra is the go with turbo for sure i had a mitsubishi triton with a vg30 v6 on strait gas with a gra made 240rwkw not bad out of a 4wd. mite be gasing my ba soon but it will be gas injection if u hav the $ id go the injection iv fitted a few but only on atmo's my car will be the first turbod 1 iv fitted. if u dont want to spend the $ go 4 the gra but get all ander bonet off them cos the converters r different. and u can order the gra throtle bodies to flow 450cfm standard they flow 350cfm very eazy and works well worth doing

Yeah im buying the complete underbonnet kit and only adding a multivalve tank to it

What brand Gas injection did you fit and to what car. I'm getting interested in gas lately and trying to work out the best setup.

Gas injection seems to be in its infancy. I wonder whether there is a Gas Injection kit for E series or BA series falcons. Gas on cruise and gas and petrol on boost could be good. Just two sets of injectors per inlet

Sorry mate im pushing 180rwkw and paid $5500

That is really good for you. It seems you saved more money that I was able to.

I suppose the question is are the modifications to your car legal (have they been approved by an engineer) because as you would be aware any changes to the performance of a car, camshafts, headwork, ECU enhancements etc... (especially if they affect emissions) need to be engineered to be legal and to ensure that insurances are honoured.

If they are mods to an N/A motor what is the cost in driveability and or fuel consumption? I get 450k's for about $40 (depending on how enthusiastic I am) I can drop that a little.

I make in excess of 470nm's of torque at the wheels, I dont know how that compares to the rest of the world.

If it is a Turbo motor that is running and legal for $5500 (regardless of fuel consumtion) I take my hat off to you as that is a fantastic achievement.