Turbo Garrett GT28.. which one? Options

[miguelst205]

Hi everybody from 6gc.net, the best celica forum in the net..

I'm from Paraguay, South America and I have a Toyota Celica ST205 JDM, these days I will put pictures and specifications... my English is very bad, but I will do what I can...

Here are the problems... the engine is forged, pistons and rods.. without work in the cylinder head.. the ct20b turbo shaft broke, now I'm using a ct26 to use the car.. but I want to buy a garrett ball bearing, specifically a GT28, because I want quick spool at low rpms, not a loooot of hp, good torque and a decent top end power, and is possible low or medium boost... but which one I choose??..

I'm in doubt between the GT2860RS and the GT2871R.. so, in how rpm each of these give me a good boost (like 1.2 bar), and torque??.. How much power will give me with that boost in any of these turbos??... anybody have dyno results or boost-rpm graphics to see??.. my power goal is 320 whp, because I use my car for everyday, for travel and sometimes drag race of 1/8 mile... it's a street car in conclussion...

The main thing concerning me is that will the 2871 spool a lot slower??..

Also getting new manifold or flange adaptor obviously, new downpipe (either 2.5" or 3") and injectors+electronic, etc..

I hope you can help me.. greetings, thanks in advance..

Miguel.. from Paraguay..

[miguelst205]

exactly greening... I going to do the search in that forum... but only a simple question now for you..

for example.. with the 3071 with the smallest A/R, but with a work in the head, like port and polish, 264 degree cams, adjustable cam gear, racing valves and springs, better valve lifter, etc... the spool will be given to lower rpm or not???..