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Nate brought his car to me 3 weeks ago to go through and diagnose/correct a poor idle condition as well as install a bunch of performance parts. Greddy fuel pressure, Greddy Coolant Temperature, Greddy Boost Pressure, RPS MAX clutch, RPS Segmented FW, Snow Performance Water/Methanol Injection Kit, replace/reseal valve cover gaskets, reroute boost control lines, reroute drivability hose, and several cosmetic touches in the engine bay. The list is quite long and this is a slimmed-down version of everything that was done to prep the car for dyno-tuning and long-term reliability. As past experience has reflected, I usually post dyno results here once I have my hands on them, but Nate made a request for me to give some feedback on what I thought of his TT - not only do I have good things to say about his car, but Nate was a pleasure to work for. So, here she is! :)
Nate Henson's TwinTurbo Z32
ENGINE & COOLING:
- ZEMulator assisted Dyno Tuning by Ash (two stage switchable ecu setting for 93 octane and Race fuel)
- Boost Cooler water/Methanol injection system by Snow performance
- JWT SP500 Turbo's
- Nismo 555cc injectors
- Steel braided fuel line
- Stillen Side Mount Intercoolers w/ Ducts
- Tokyo Auto Radiator panel
- Z32 Aluminum Lower Radiator Hose Kit
- NGK Cooler Plugs
- Mobil 1 10w-30 motor oil
- Nissan 60u00 oil filter
- Redline MT-90 transmission oil
- Motul 600 Brake fluid
INTAKE & EXHAUST:
- JWT Dual POP charger air filter kit
- Hose Techniques 300ZX TT specific SVH hose kit
- Blitz Super Sound Blow Off valves w/ hard pipes and Hose
- Techniques Silicone Coupler hoses and T-bolt clamps
- HKS hard pipes w/ Hose Techniques Silicone Coupler hoses and T-bolt clamps
- Greg Dupree Divorced Down pipes and Mid pipes
- HKS Dual Cat back Hyper Exhaust
DRIVETRAIN:
- RPS Segmented Light Weight Flywheel
- RPS Max Clutch
- SGP Steel braided clutch line
- Unortodox Racing pulley (Silver w/ belts)
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After getting everything into check and some break-in miles were put on the clutch, we took her up to BNO performance for dyno tuning.
Given that Nate's car has stock internals, the tuning process was quite conservative and the engine was not pushed to its absolute potential. The car was tuned for both pumpfuel and racefuel configurations, and the water injection is simply treated as a 'safety buffer' when running pumpfuel at 20psi. There were quite remarkable gains in torque with the addition of the water injection.
In the dynochart shown on the right, the final-tune results are shown. The car produced a healthy 406RWHP and 428RWTQ at 18psi with the water injection running.
Sunoco 114 octane race fuel was added to the mix and the boost was raised to 23psi with water injection running. This netted 461RWTQ and 442.3RWHP.
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I have to say though, even despite the fact that these numbers are no dyno-queen *glamour* numbers, this car is a ROCKETSHIP. This being the first vehicle I have custom tuned and driven with Sport500 turbos, I have a lot of newfound resect for what these little hairdryers are capable of. They reach full spoolup of 18psi by 4600RPM and the onset of power is remarkably quick and very predictable. There is a seat of pants difference of about 30RWTQ when the water is added to the mix and the turbos spool up even quicker. The combination of Skyline wheels/brakes and some healthy Nike's on this car, Nate is putting down all 430ft/lbs of grunt to the ground and it is all VERY streetable power. 1st gear gives you the obvious 4500RPM wheelspin, tat-tat-tat off the rev limiter as the car catches up, grabbing second and the tires doing everything they can to stay glued while you stay pinned to the seat. Third gear is just SICK.
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To view the full image gallery of Nate's car, you can go to the link below. Most all of the work performed was pictured and the gallery updated almost nightly for reivew.
[ http://ashspecz.com/Customer%20Cars/Nate%20Henson/index.htm ] Thanks for the opportunity Nate - it was a pleasure doing business with you!
[ ashspecz.com ]
[ agpowers@bellsouth.net ] Enthusiasts soon understand each other. --W. Irving.
Are you an enthusiast? If you are out to describe the truth, leave elegance to the tailor.
Albert Einstein
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Some JWT Sport500 dyno results > NATHAN91'TT - 
