50ar vs 60ar on a gt2871r

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03-15-2007, 07:17 AM

eggie75

0.0 BAR

Thread Starter

Join Date: Jul 2006

Posts: 10

50ar vs 60ar on a gt2871r

Hi,

I just ordered a gt2871r. I ordered a 63ar hot w/ a 60ar comp. They sent me a 50ar comp. What kind of performance differences can I expect between the two. Will the 50 spool faster but sacrifice top end? I am debating on whether or not to keep this or to return it. btw, this is going on a b18c.

03-15-2007, 04:00 PM

Hitchhikkr

3.0 BAR

Join Date: Oct 2006

Posts: 2,330

Re: 50ar vs 60ar on a gt2871r

JD put it best.

Quote:

Originally Posted by Joseph Davis

- Ball bearing turbos are completely worthless. Unless it's a hybrid unit with the compressor a LOT bigger than turbine you get a mere 400 rpm gain in spool for your +$650... mismatched compressor/turbine combos are the ones that get 1000 rpm gains in spool (GT2540R). Also, the ball bearing turbos freaking fail like clockwork as they are NOT a robust piece, and cost 85% what they run new to buy a new CHRA. It's what I call Magazine Technology - it looks good on paper, and sells well to magazine reading idiots who've never been in a fast car. Save the money and get a journal bearing turbo, you'll be really happy you did.