Choose wisely

Choos­ing the right turbo

NZ Performance Car - - Scrapyard Gains -

With OEM tur­bocharg­ers drop­ping dramatically in price lately, it some­time isn’t worth buy­ing a sec­ond­hand unit. Sup­pli­ers like All­tech have nearly 3000 tur­bos in stock, so they are bound to have what you’re af­ter. The GT2560R pic­tured goes for just over $1100, that’s not much more than you’d spend fab­ri­cat­ing ev­ery­thing up for that low-qual­ity replica turbo we men­tioned at the be­gin­ning.

Some­times it works out that you have the op­por­tu­nity to pur­chase a sec­ond­hand unit for a steal, so we asked All­tech what it rec­om­mends you check to en­sure you don’t get a dud.

There are two main things to look at — the ax­ial play (front to back, or in and out) and ra­dial play (side to side). Some play is okay, but when the com­pres­sor wheel is touch­ing the com­pres­sor hous­ing, walk away. All­tech also rec­om­mends just hav­ing a good look over the turbo. Some­times tur­bocharg­ers suf­fer dam­age due to ex­ces­sive heat, and the tur­bine hous­ing can show signs of crack­ing, which is no good.

The turbo pic­tured is off a Subaru Le­gacy BP5. The com­pres­sor wheel has been rub­bing against the com­pres­sor hous­ing for some time, re­sult­ing in some pretty se­vere dam­age

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