INSANEREINDEER

I have a 1990 300zx with a STOCK 2001 5.3 I plan on strapping a turbo to soon but I am having the hardest time deciding on the turbo I should use. My original plan was to use a 72mm but now I am also considering a 76mm turbo. I am looking to run the Turbonetics T-series and make around 550-600rwhp. I don't mind having a slight turbo lag but I don't want to be waiting forever for full boost. The turbonetics T-series comes in basically any A/R but I've been mainly debating on .96 or .81 depending on the size I get. The car will only be a street car but Id like to get a turbo big enough to possible push more later on without choking up. I plan to do a full valve train upgrade later on to rev a little higher and possibly a fully built turbo motor to hold together reliably to some beating later down the road.

Car is 5.3L with stock 300zx transmission and a 3.357 rear end. I will be running 2.25 hot side pipes and a 2.5 cold side pipes.

Should I buy a 76mm T-series with a .81 or .96 A/R

OR

Should I just buy the 72mm T-Series with a .96 A/R since it will mainly be a street car?

Not really sure what what trim to use either. They're offered in STG 5, P, Or S-Trim.

Also I plan on buying a set of 80# Bosch injectors if anyone has had any experience with these and if they're worth buying.

Let me know your thoughts since there are so many options out there. After reading a ton of this subject I can't really find anything that will help me make a decision.

ddnspider

iTrader: (26)

T72 is plenty good to make 550-600rwhp, with the T76 giving you more room to grow later. I would go with a .81 A/R so its not so laggy.