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Was looking at some GT2530s... but friend had to take a better offer for them that I couldn't touch. They were .60 a/r on the compressor, .64 on the exhaust... I'd found some true T28s with a similar a/r on the compressor, but a larger .86 on the exhaust. I know the question has been asked before but when I went searching for it I couldn't seem to locate it, and wanted to ask if someone could explain turbo dynamics in idiot's terms to me. The larger the a/r, the worse the lag correct, but the larger the overall flow? I was told the T28s have a slightly smaller front compressor to compensate slightly for the larger rear a/r and that the turbos would peak full boost before 4krpms and would put off decent power. Thoughts? Ideally I'd probably like a turbo that has a bit of low lag (as I auto-x and would like to start roadracing) so it would be more planted in low rpms in a corner, but would have the acceleration out of the corner and down the straight... how would these turbos perform? Also, I have the option to pick up some Skyline Turbos... But the a/r's are MUCH smaller... a lot closer to stock, and I'm worried that #1, they'll run out of airflow and won't boost too high, #2 they're off ebay... so not sure if I can really trust the guy. Thoughts on the T28s? They're straight OEM turbos, non rebuild/remanfacture crap... I was told they'd put down over 500rwhp on a nicely modded TT with no internals... possible? I've got the following, and was going to add the lower list: Apex'i Intake
B&B Exhaust (XPipe w/ Resonators)
Dupree Divorced DPs
Gutted Cats
Stock Injectors
Apex'i SAFC2LE
GReddy Profec B
GReddy Intercoolers
RPS Segmented Flywheel & Sport Clutch
UR UD Pulley
1 pc Powertrain Alunimum DS Installing w/ Turbos:
Ported Exhaust Manifolds
Nismo 555cc Injectors
New Dupree Divorced DPs to match turbos (5bolt)
Dupree Testpipes
Dupree XPipe
ECU Reprogram
Turbos Thoughts on boost/lag/power? Where would I stand? I was told the T28s would be good for 20psi all day, 22 extreme scenario (higher octane, etc) and that peak boost would hit before 4krpms and hit 500+rwhp. Truth? Fiction? Thanks!
KaZ (VaBch) - "Unique Z"
Dyno'd - 335 RWHP / 361 RWTQ @ 15 TDC / 17 PSI
AIM - KaZsMiR / E-mail @ Hotmail - casimijg 
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