Quote:
Originally Posted by RedT18
Hey guys,
I am planning to go for a single conversion on my 2JZ.
First step will be to push out the stock bottom end's maximum which should be around 600-650 whp.
I already have a Turbonetics T3/T4 on my Celica Turbo. Now I want to have a Turbonetics Turbo again 
What I now is, that the new single should be a GTK but the question is which of them I should pick?
I know that the 650 should be ok for myplans. But who knows that will be later. Maybe I decide to biuld a new bottom end, then the 650 would be too small, right? Thats why I have the GTK 850 in mind, too.
I am just afraid that this Turbo could be too laggy for my first stage single conversion.
Are there any people that have some experience with this Turbos on a 2JZ?
Is there a big difference between the 650 and 850 in terms of spool-up?
When will the 850 start to make boost on the 2JZ?
Thanks a lot! |
The 850 out of box runs a much larger turbine wheel than the 650 so the spool up will be affected by both the larger compressor wheel and the larger turbine wheel. I can't say how the 850 will do on that specific motor but my guess is its going to lag a bit as its a 68 mm turbine wheel. The 650 turbine wheel would likely be your best bet for your current setup.
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2004 Nissan Titan SE KC 4X2: AEM Brute Force Intake, NISMO Exhaust, NISMO Shock Kit, PRG Upper Control Arms, PRG Sway Bar Endlinks, PRG LCA Spacers, Eagle Alloy 17x8, Nitto Terra Grappler 295/75/17, Alpine iXA-W404, Apline Power Pack, Apline KCE-400BT, Alpine Imprint, Alpine Type-R Door Speakers, US Amps USA-400, JBL GTO0804
2004 Nissan 350Z: Turbonetics Stage 1 Turbo System, Apexi WS2, HKS LS+ Coilovers with Swift Springs, Hotchkis Sway Bars, NISMO LSD, NISMO Diff Cover, ACT Clutch, JWT Flywheel, GSpec Short Shifter, Hawk HPS pads, Blitz Upper Raditor Hose, Motordyne 5/16" Plenum Spacer, Volk LE37T 19x8.5 and 19x10.5, Blitz FATT DCIII
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