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I have the exact same intercooler and planning to run 2 bar on it. Which exact part let go? Examining my Bell intercooler, I find it vaery hard to believe it can blow open. Wow. Anyhow amazing results for 24psi. :Codename: "The Peacemaker"
:HKS 2835 BB Turbos (2)
:BELL Custom 4.5" thick FMIC
:Z1 Custom 321 SS manifolds
:Tial External Wastegates (plumbed into exhaust)
:850cc injectors - Border rail
:Z1/Wiseco 88mm forged pistons (Z1SPEC)
:Ferrea 1mm oversized intake and exhaust valves
:Ferrea dual coil springs
:Z1 Stage3 Cams
:JUN adjustable cam gears (intake and exhaust)
:Tomei Solid lifters
:Custom mandrel 2.5" intake plumbing
:Custom exhaust/testpipes/HKS HiPer
:Greddy Profec B SpecII
:RPS carbon-carbon flywheel/clutch assy
:Dual intake filtration (single MAS pickup)
:Zemulator/AshSPEC tuning
:NO N2O or FMIC 'chilling', freezing, or anything of the sort (yet)
:Z1 StageX Powerpackage Kit (pending release)
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:I want to mention that this car has awesome drivability to go with its awesome power potential. Smooth as silk, drives perfectly in stop-go traffic.. kick in the clutch at 80MPH and she comes down to a perfect idle with no stumbling or hesitation.. cruises with no surging (as commonly noted with some dual intake setups). Other than needing a brake job, this car drives just like a brand new NA up to high 4000RPM and then all hell breaks loose. Also note; AC compressor is installed and the system will be put into place in the near future using a custom AC condenser and plumbing.
:Today at the dyno the car was performing well. Today's session was a preliminary run to see what to expect horsepowerwise as well as note any issues that may need resolving. 93 octane pump fuel was used and at 18psi the car produced 580RWHP. VP110 race fuel was added to the mix and boost upped to 23/24psi. Spinning her up to ~8000RPM showed a wonderful powerband streaking over 2000+ RPMs and well above the 600RWHP marker. I was noting that I could not drop the A/F anymore rergardless of fuel map revision and it became apparent that there is a fuel delivery shortcoming - stock fuel pump must be worn out. But, on the final run that this was noted, the FMIC let loose and blew a nice 6" crack at an endtank weld. (That would be two under the belt now ;-) (Joel, nudge nudge;-)
:Here are the results on race fuel at 24psi:
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:A higher capacity fuel pump will be added to the config and we will be returning to the dyno this coming monday.
:Some notes:
:-24psi on these turbos is barely getting them started. They can flow some 30-34psi very efficiently. Whether the FMIC will take it is another question, but we'll figure that out when we get there. If it lets loose again, BELL will be recieving this one back with our personal spec on how to build them right so they dont blow apart.
:-No cam timing changes were made and everything is zeroed out as she sits. There is evident room for manipulation there to make more power.
:-During the assembly, I spent a good deal of time (about half a day) fabricating brackets to support the turbos/manifolds and so far everything looks very good. Uniform color banding and everything still sits in the same exact place it did when it was assembled. Unfortunately with SS, its not a matter of if, but when it will crack. We're hoping that comes later than sooner, but so far everything looks very stout.
:-Transducers and thermocouples have been ordered for this vehicle to be installed and monitored with the ZEMulator as well as datalogged. Intake manifold pressure, exhaust manifold pressure, pre&post turbine EGT, pre and post FMIC temperature and pressure as well. This data will give us all we need to maximize this configuration.
:--Under the peak expected boost level, sufficient fuel flow, and some good 'ol tuning, we expect to see 800RWHP without any N2O. With N2O I'm pretty certain we'll hit our 4 digit marker.
:Full image gallery:
:[ http://z1motorsports.com/Image%20Gallery/Customer%20Cars/300ZX/Gary%20Owens/ ]
:ZEMulator:
:[ http://ashleypowers.com/Zemulator/Index.htm ]
:And of course, Z1motorsports.com
:[ http://z1motorsports.com ]
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