hello all,

I would like some expert advice please,

I am looking to replace the turbo unit on my std sapphire cosworth 4x4 1991 after christmas. I would like to up the power on it but I would like to do it in stages.

I need a turbo charger first as its smoking blue on over run. I would like to buy a big turbo but not sure which one to go for. I would like around 25-35 psi eventually. Can I fit a big turbo to my std set up for now and then get a new plenum, injectors chip at a later stage?

I was looking for a t38 as fitted to Pete Mcrash's G*** NUG or the bigger t4 fitted to L22 COS. I can't find any specs on websites other than this new Garrett Ball bearing range the G35 looks big power.
anyone shed some light on this please and also cost options.

Any help would be appreciated