Borg or turbonetics?

[Suck Squeeze Bang Blow]

I'm pretty set on doing a Borg s366 the specs are as follows.

Compressor: 66 mm inducer / 91.4mm exducer, with exclusive Extended Tip Technology.

Turbine: 80 mm inducer / 73 mm exducer. Cast in Inconel 713 for high-temperature operation.

Compressor: Large 4.00" ported anti-surge air inlet / 3.00" charge pipe outlet

Turbine: .91 A/R Twin Scroll, with 'T4-style', divided entry, and 4.21" v-band discharge.

I plan on running that turbo with a billet wheel from either bullseye power or engineered diesel along with a race cover.

Then I came across a pretty good deal on a turbonetics gtk-1000. Specs are as follows.

Compressor is a 76mm

Turbine is a F-1 Trim 68MM

Compressor inlet is 4" and discharge is 2.5"

Turbine housing is a Ceramic Coated T-4 open design with a .96 A/R and 4" discharge

It is a ceramic ball bearing turbo.

I haven't really compared map yet. Just curious if anyone has ran the gtk possibly or have any insight. I plan to be about 600-700 hp daily driver/weekend warrior type truck. So need something that can support that power level but spool really fast. With the turbonetics I'm sure I'd have to wastegate it where I could probably get by with the 366 without. Let me know what you guys think. Thanks

 

[redneck191218]

Not really compairing apples to apples the GTK-1000 is a much bigger turbo than the 366. The GTK-650 is much closer to the 366 as they both are 66mm turbos. The 366 is the standard turbo upgrade on a duramax everything else is juged by, that being said for my money I would do a Precision 67mm Ball-Bearing it is a well proven design that flows very high #'s for its size.
Just my $0.02