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| Turbochargers and related components Whats new, tech questions, what's your favorite and why... turbos, wastegates and boost controllers |
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#1
02-27-2008, 07:55 PM
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Gtk-850
Is anyone using the new GTK-850 turbo (72mm)? How does it compare to other turbos used?
How is the spool and driveability? Thanks Datar
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87 GN Stroked, Girdled, Solid roller cam, GTK-72BB S-trim .85A/R, GN1's, XFI-T/C box, Cottons FMIC, Razors dual nozzle alky, TA Headers, Len Freeman 200r4, PTC 9.5" N/L 
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#2
02-27-2008, 11:30 PM
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Check with Mike Nogradry. I believe that is the turbo he has. Don't know for sure if he has run it prior on his car, 'cause his car is under construction at the moment.
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'86 Gn with an RPE bullet. Almost everything else is from Cottons. 100% street car!
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#3
02-28-2008, 12:41 AM
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Quote:
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87 GN, RPE built 109 stroked, RJC girdle, billet main caps, custom comp roller cam, Champion ported aluminum heads, Champion aluminum intake, T&D 1.65 rockers, 96 lb injectors, Accufab 70mm throttle body RJC pullies, RJC A/C bracket,GTK-850, ATR headers,Deeds electronic boost controller, Cotton’s 4 inch down pipe w/ Turbonetics RG 45 gate, XFI, Cotton’s front mount, Level 10 built 400 trans w/brake, Converter? ,33 spline Moser axles, Spool, HR bar. New best 9.44 @ 143! 
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#4
02-28-2008, 07:48 PM
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Jack mentioned a guy from ST. Louis is using one, hopefully he can post his expierence with it.
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87 GN Stroked, Girdled, Solid roller cam, GTK-72BB S-trim .85A/R, GN1's, XFI-T/C box, Cottons FMIC, Razors dual nozzle alky, TA Headers, Len Freeman 200r4, PTC 9.5" N/L
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#5
03-03-2008, 04:52 AM
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I'm the guy in St Louis with the GT-K 850. This turbo is NASTY. I'm trying to chase down some gremlins in-between snow storms and ice storms
. I haven't been able to get a decent tune to tell how fast it will spool but the big end is VERY NASTY. Not looking good for weather. 70* today and 10" of ice and snow by Tuesday. Will keep you posted when I figure it out.Bryan
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Bryan 87 GN with 43k Stock block  Champion GN1 14 bolt, ARP bolts, Cottons valve covers, Comp Cams 218/212 hyd roller, Scorpion rockers, Comp Cams double roller, home ported intake, Champion 1" plenum spacer, RJC PowerPlate, Turbonetics GT-K 850 BB, 3" DP with external wastegate, Cottons 4" cold air kit, Cottons FMIC, 72# inj, FAST XFI, ALKYCONTROL, Hooker cat back, Art Carr 9" NLU, Art Carr internals,Precision turbo saver, Metco adjustable uppers, Metco lowers, HR sway bar, MT DRs
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#6
03-03-2008, 04:46 PM
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Quote:
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87 GN, RPE built 109 stroked, RJC girdle, billet main caps, custom comp roller cam, Champion ported aluminum heads, Champion aluminum intake, T&D 1.65 rockers, 96 lb injectors, Accufab 70mm throttle body RJC pullies, RJC A/C bracket,GTK-850, ATR headers,Deeds electronic boost controller, Cotton’s 4 inch down pipe w/ Turbonetics RG 45 gate, XFI, Cotton’s front mount, Level 10 built 400 trans w/brake, Converter? ,33 spline Moser axles, Spool, HR bar. New best 9.44 @ 143!
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