Only Removed the stock damper and regulator, running sard reg. no issues, Ben from UAS says stock rail is good for a lot more power before needing to upgrade.
Yeah i was just about to say the stock rail is fine at that level ,ive got 300rwkw stock rail and reg 555s and 79% duty cycle max
Specs Finally got around to listing all the specifications. 1991 300ZX TT SPECIFICATIONS ENGINE VG30DETT 3 litre twin turbo Engine modifications Block bored 20 thou oversize, decked and o ringed,fitted with forged ACL race pistons and rings, attached to Scat H beam conrods, fitted with ACL race bearings. Crankshaft linished and deflashed, oilways modified.as is the oil pump for greater flow. Heads have received a lot of work with machining,porting and polishing, cc?d, flow tested, oversize Ferrea valves have been fitted along with competition valve springs , with compression set at 8.5-1. Inlet manifold has been match ported to the heads and the upper plenum. Fuel is supplied through nismo 555 injectors with a Sard fuel regulator and gauge setting the pressure from the in tank Sard fuel pump which feeds a custom surge tank and a Bosche 044 pump and filter fitted where the battery normaly is, battery has been moved to the boot area.. Inlet breathing is by way of a K&N filter through a UAS custom 600x300x90 front mount intercooler. Series two power transistor unit has been fitted along with a set of Spitfire coils and extra earthing to improve the ignition. Engine breathing has been modified through the inlet cam covers, to pcv valves and a DI catch can Exhaust is by way of custom 5 bolt, 3? one piece dump pipes attached to a set of AMS exhaust manifolds, then a 3? system through a UAS x pipe resonator, hi flow cats, and through a pair of Magnifow Mufflers making the system quite but efficient. Providing the power are a pair of (GT25/60RS) ball bearing turbos,now replacing the GT/2560R (S-15) turbos which were fitted previously. Boost is provided through a Blitz dual SBC controller with two settings currently available, 15 and 20 lb . Also helping in the power stakes are a set of (Jim Wolf Technology) JWT 400+ wild Cams fitted with BDE (Brett Dempsy Engineering) modified Cam gears. Turbosmart, plumb back blow off valves are fitted with a Ross Racing harmonic balancer and gates blue belts turning the equipment over. Engine management is by a nistune computer Water cooling is through a 56mm Bok Choi Radiator, and oil cooling is through a 72 plate external cooler. DRIVELINE Vehicle has been converted from a 4 speed automatic to a 5 speed manual driven by a Kick arse UAS six button single plate clutch attached to a X-Treme chrome molly lightened flywheel driving a chrome molly one piece tailshaft. The stock diff has been replaced with one carrying a set of Richmond leader diff gears of 4.11 ratio to give it more punch out of the corners and off the line. SUSPENSION Bilstein PSS9?s are the coilovers of choice providing plenty of adjustment and damping for a comfortable ride on the road, and are quite at home on the track Powertrix upper control arms and lower tension rods are fitted to the front with Tune Agent camber and traction arms fitted to the rear along with an energy suspension kit, tying this together is a Nissan strut brace, one of only two in the country. Stock hi-cas has been removed and a Just Jap locking bar fitted BRAKES Front,Stop Tech big brake kit fitted 332 mm slotted, curved vein rotors ST-40 calipers and brackets,and flexible stainless brake lines, fitted with Ferodo 2500 pads provide the stopping power, Rear, Reliance Edge 297mm slotted rotors with ferodo pads Stone shields have been removed and tubular ducting has been fitted for extra cooling. WHEELS and TYRES Enkei RP03 racing rims fitted with Bridgestone Re55?s tyres, 285/30/18 rear and 245/40/18 front presently fitted and are used for track work A set of DTM Z7 gunmetal mags fitted with Kunmo Ecsta 285/30/18 rear and 245/40/18 front are the normal road wheels. Also available is a pair of stock 16? wheels fitted with Mickey Thompson ET street radials for those nights at the drag strip. EXTERIOR Changes to the car are the fitting of 2000 model urethane front bar and rear tail lights, a UAS fiberglass vented bonnet, modified nose panel, and a UAS rear wing and a UAS enclosed rear bar. A pair of Ab-flug Areo mirrors adorn each side Top and bottom are custom made Miracle Zed Motors vented air guides for improved cooling to the radiator. A HID lighting kit has been fitted to rectify the poor stock lighting INTERIOR Remains fairly stock other than the Bride Brix race seat with a 4 point sarbelt harness fitted, stock gauges have been replaced with el panels giving various shades of blue. Other gauges fitted are a set of Defi triple set, oil, water temp and pressure Also a Pivot boost gauge and an apexi rev speed meter and a Apexi?? turbo timer Also along for the ride is a AIM lap timer for those days at the track, also waiting time to fit is a full roll cage. Kenwood head unit with four kenwood 5? speakers provide the sound. Also a pair of rare chrome Terrano door handles. BLING Under door and front Z badge fitted with blue Led?s, Also the rear 300Zx panel is fitted with a blue el panel Multitude of chrome, polished alloy and blue silicon hoses under the bonnet ACHIEVEMENTS Vehicle has picked up various trophys at car shows, dyno days etc. Best was a 4 trophy haul at the Zed fest at Coonanble in 2006 where it won Best engine bay, Entrants choice. Peoples choice and Rice is nice against some of the countrys best Car is not built as a show pony , but is a daily driver, used regulary on cruises, the Race track,and Drag strip. Current power out put is 470 RWHP, or 350 RWKW running 20 lb of boost on 98 octane pump gas, The Car was until recently the fastest street registered Z32 in Australia, by running an 11.920 et at WSID, with a awesome 1.518, 60? time with a best speed of 122 mph (196 kph) through the trap, not bad for a rear wheel drive car weighing a ton and a half. Car was also the fastest street registered Z32 at the last Nissan nationals at Morgan park. FEATURED Car has been featured in Zoom magazine # 137 and HPI # 51, Car can also be found on the websites of Martini Racing,Turbo Smart, Unique Auto Sports, 3D landscapes, and 3D Images. FUTURE Awaiting fitment is a AB-FLUG type 4 front bar, THANKS Need to go to the team from Unique Auto Sports, John,and Ben, Sandy and Rob from BP Castle Cove. Wayne and Geffo from Miracle Zed Motors. Caroline from Caz Racing. and friends on the aus300zx.com forum.
Quite an intensive list Ron... i'm aiming for around half of that haha. Well Done mate...will have to check it out at goulburn. Matt.
Ronny, What has changed this time around? Obviously the turbos have been upgraded to RS. What power were you making previously with the 2560R? -Jono
Hey Jono Most i made with the 25/60R was 321RWKW, but that was on Martini 110 octane. Think the most i made on 98 was 310 rwkw, but used to run it at around 300rwkw. With the new 25/60rs now running 350rwkw, but i also put JWT 400+ cams in so not apples for apples.
Some more work Fitted a set of adjustable Tomei exhaust cam gears today. Wasn't happy with the lag after fitting the new turbos and cams at the track day at the Nats. Have moved the rev range so that boost is now comming on about 600 RPM earlier, sacraficed a little up top but should have better pulling power lower down now. Will see what sort of difference that makes this weekend when we return to Wakefield, fingers crossed. Red line previous, green line new set up.
I thought you had made a type'o, because I've never heard of 2560rs, just 2560r like the one's coz sells. Do you mean 2860rs?
That's more than enough power, good info on how to bring on the power earlier. Did you decrease the LSA by much? (Just so I don't have to reply to the next question, LSA is Lobe Separation Angle)
Final settings Finished up at 4 degrees retarded on the exhaust cam gears Brad, Few more tweaks today, new airflow meter and filter, more dyno runs, settled on 352.1 RWKW with good pulling power now, not like it was at the Nats. Give it a few hits on the way home today, much more responsive, so, keen to give it it's legs at Wakefield on saturday. Final figure Red line new, blue line previous
Good work Ron... Hope you run that 1.08 around Wakefield:br: I've never really understood adjustable cam gears...isn't there only one position for the cam gears through out the combustion cycle As in compression both valves remain shut, intake.. (intake valve open exhaust completely shut) By having adjustable cam gears isn't that repositioning the whole cam... same as missaligning a timing belt and having it out by 1 tooth... Anyway crank the boost up to 22-24psi:zlove:
