The Garrett GT30R is a entry level ball bearing turbo for pro-street, being ideal for small to medium engines 1.8L to 3.0L looking to produce up to 500hp. Inlet flange is standard fitment with a T3 flange on the entry and V-band of 4 bolt 2.5″ compressor outlet, oil and water cooled center, it also features a open T3 turbine flange for Internal or External wast gate depending on which exhuast housing you choose, depending on your engine size and desired spool there are three different compressor wheel variations available with 0.63, 0.82 and 1.06 A/R.
Some people have fitted these to SR20’s that have produced 400rwhp and nailed 11seconds down the quarter and producing up to 26psi of boost. Garrett ‘s ball bearing technology is incorporated into the GT30r and has been proven to make this turbo spool 15% faster than the journal bearing equivalent.
It is basically a smaller variation of the GT35r and very similar in design and price, the two choice between the GT35R and GT30 should purely come down your goals of power.
RRP $1600
Tech Specs
Compressor Side | Turbine | |||||
Wheel Diameter | ||||||
Inducer | Exducer | Trim | A/R | Wheel Diam | Trim | A/R |
61.36mm | 60.1mm | 56 | 0.40 | 54.98mm | 84 | 0.63/0.82/1.06 |