Go-Faster Nobles

[V6GTO]

Several of my mates Nobles are just coming out of warrenty. Now, there has been a bit of talk about upgrading the twin turbos to the newer GT series of ball bearing type turbos. Can anyone shed light on the advantages/cost of such a modification please.

[andycanam]

My understanding is that the ball bearing turbos spin up more freely and so reduce lag.... and keep spinning better during gearchanges thus improving responsivness.

I also think the cost over £1200 each for a cossie unit were a normal Hybrid would be around £500.

How much difference they actually make and if they are worth the extra I have no idea.
I can't justify them on my twin turbo project and will be using normal hybrid units.
Andy