[Robert]

Originally Posted by TWENTY B

Hey guys,
after owning many rotary vehicles, supercharged corolla, turbo forester, I have just picked up a new toy.
This time a v8.
2007 Ford Fairmont Ghia (i'm an Aussie, obviously)
it uses the same 3v v8 as the F150 in the US (i believe)
and a ZF 6 speed auto.
ex Ford Aus executive driven vehicle.

Now, as much as i am loving this luxury ford i just can't leave things alone.
so i have some 20's on the way,
and have been discussing LPG Liquid Injection which i'll be installing later in the year.

But me being me, i'm gunna want some boost sooner or later. (most likley sooner)
Hence why I am here.

what turbos best suit my needs.
5.4L v8 street car, mostly on 8-10psi
i'm not looking to screw every possible Kw out of it.
space is tight so will have to keep that in mind.
but thanks to the LPG-LI no need for an intercooler
and no need to squeese cooler pipes in
i had a pair of GTK-650's in mind or HP72's
I don't mind a little lag but obviously less is better

so Mr Turbonetics, what do you think is the one (two) for me?

I think the GT-K 650 is a nice unit but duals are going to present some lag. Remember twins on that matter means 2.7L of displacement per unit. That's not bad but that T4 turbine wheel might lag a bit with only 2.7L of displacement. I would likely go with twin GT-K 550s if you really want to do twins. Your power potential will be a bit lower but you wont have as much lag. If lag really is no object twin GT-K 650s will be just fine.