they are light weight, so you can have a larger wheel and have the same spool as a cast wheel. .... and make more power.

 

Sweet, thats not a lot of boost. I mean yea, this is all theoretical but makes me feel a lot better about possibly trying it out. Im going to stick with the 3076 for right now because funds are low and I have my new manifold coming and I want to see what i can get out of the 3076. Maybe 520-530whp will feel good, but if I get tired of it ( ) then I will give the 6057 a try.

i think the quality of the new Precision turbos is really good, better than it used to be. So thats why I thought of finally trying something other than a garrett. haha

 

No, Not really according to Garrett.

[QUOTE=turbobygarrett.com]The Garrett

 

They generally spool a touch quicker and have higher mass flow rates because the center hub is smaller, which means inducer blade length is longer and that gives more inlet area. The designs are the primary factor, the new aero Precision came out with is much better than the old designs. One example, a Supra owner recently made more power at less boost than his Precision 72mm, thats impressive even if you dont count the fact that he made power 1000rpm sooner!

Streetable power level is subjective. I certainly think 500whp with a billet 5557 would be a whole lot more fun than the same with a 35R. Even if that power is used primarily on the highway, just driving around town will be better with the smaller billet turbo.

 

Either I suck at google searches or something is off. I can only find that precision turbo on ebay, got any better place with a wide selection of precision turbo's? My precision is leaking and I think it's due for a rebuild.

That argument you bring up with that Garret quote is interesting, but I would rather see 2 dyno pulls both on same car with different turbo's.

 

So what are the major cons with these turbos? Why do most people here end up going with Garrett?

 

Garrett is a more 'off the shelf' product as opposed to the Precision which is a more 'custom built' type of turbo as it is a Garrett hybrid of different compressors and exhaust wheels. OTS Garretts's cheaper and more widely available.

Case in point - find some compressor maps of Precision turbo's. Google will laugh at you.

 

Thats some really good infro you got from Garrett, and one thing I love about garrett because you have a compressor map to go off of. Precision doesnt publish any compressor maps, but their new Billet turbo lineup has been REALLY good, and honestly I think a little better than a comparable garrett.

I think the 3076R has the best 56mm compressor you can find, but garrett doesnt have a turbo between the gt3076 and gt3582 that I want to use....so thats why Im looking at precision. With Precision you can really fine tune your turbo to your setup because they have 57, 58. 60, 62, 67. etc billet compressor wheels that flow in the 500-800 range.

 

Most people go with Garrett because their stuff has been awhile and more people understand the sizes because generally its a 3076 or 35R thats used.

Precisions new billet line is a little more expensive, but their non-billet stuff is less expensive than Garrett. Precision has a couple Garrett hybrids(GT42-71) but most are Precision parts(some are copies of Garret parts). Precision doesnt have the compressor maps unfortunately, but theyre expensive to have made.

 

so out of the billet series lineup, for an s2k wanting 450-500whp on pump gas with a stock motor(possibly inlinepro 3mm hg/arp studs) which turbo is best suited for this for the best powerband without sacrificing top end?