Turbo upgrade

[F3600]

Hi everybody ! I have been searching for a nice turbo to upgrade my T25. I bought a universal FMIC on ebay yesterday to start getting my pieces for my total upgrade.

Im hoping to get maybe 250 300 HP, nothing too exotic. I have found some info on the forum but i wanted to start antoher thread based on compatibility.

I have seen that a T28 s15 turbo is a nice upgrade over the T25. The price is not too pricey too aroung 400 for a used one and a new one turn around 700 800.

I was checking on ebay for a S15 t28 and the A.R on the housing is never the same some are 0.60 some are 0.64.. ? why there some difference if they all come on the S15 engine ? I suppose that a 0.60 is gonna spool a litlle faster but suffer in High Rpm situation ?

I have seen a T28 GTIR on some forum the price was nice and it was not dead.. in good condition... but i heard that it was not a direct fit on the CA ... anyway.all this chatting is to discuss about a turbo upgrade for my CA. give your input if you want . If a got nothing i will do more research on my own ..

thx againFred

Ps: sorry for my bad english, trying my best to get understand by everyone

[GotBoost4Yall]

I put on my S14 T28 on last week, what made it easy was the steel braided lines I got with it, but I had to use the stock oil feed line since I didn't have a fitting to the block. If it was my choice I'd have the SR T25 rebuilt and back on, the t28 is too laggy, but I can't be sure since I'm running it at only 6psi w/o other mods. Only thing I don't have is a z32 MAF,injectors,fuel pump and fmic is not installed,so I'm taking it easy. I did have some Supra injectors (yellow tops) but after researching ,they come from the 7MGE N/A Mk3 which are 295cc, turbo models use 440cc and are black tops both are made by Nippon Denso.