I was looking to upgrade my internals and turbo. I like the Garret ball bearing turbos and was wondering if anyone had an opinion on which of these two turbos would be better. A GT-2560R 52 trim .60a/r, or a GT 3071R 56trim .50a/r. Both are expensive but they both seem to net the results that I want. Around 400 whp. I have a B18C1 for those of you who don't know. I want this to be a street car so i'm not going for max numbers I want a quick spool but still get a good top end as well. Let me know what you guys think or if you have other suggestions.

 

gt30r will be your best friend

 

GT2871 absolutely rules.

 

Hi,

I have a b16 with internals done and droppedcompression of 9.5:1. I am using a BLOX manifold cast iron, I am using a GT2840R turbo. With 2.5" charging pipes and 3" exhaust pipe. I get boost at 4k rpm.

So i suggest you a GT2871 R handling upto 400 Hp.. With a b18 expect spool at 3000 rpm... Also keep your A/r 64. That should be good.

 

GT3071, without a doubt. You'll have enough for 500whp with a little bit o' C16.