SoCal G35 Dyno Day - 09.04.2004

Dyna Pack Dynamometer

Direct rear-axle bolt-on measurement point. (Wheel/tire diameter, mass and alignment influences a thing of the past)
Simulated road load insure proper ECU response under WOT condition.
Accurate within +/- 3%
In comparing to the more well known DynoJet dynamometer, the readings is approximately 10-15 hp higher.

SAE-correction for ambiant conditions

Ambiant temperature compensation
Relative Humidity compensation
Barrometric Pressure compensation

Open-hood setup

One Industrial fan blowing towards the front bumper of the car.
Another industrial fan aft the car (blowing outwards) to excavange exhaust fume and to assist a aft flowing draft.

Wide-band Air-Fuel Sampling

Exhaust gas is sampled from the tail-pipe location.
The AF readings for this particular setup is approx. 0.7-1.0 point higher than the pre-cat location.

3 runs per car

For added accuracy and consistency across the board, an OBD-II reader (via the diagnostic port) is employed to monitor vehicle vital status. 1st run is commenced when coolant temp reaches 185-deg. (F). 2nd run is peformed once coolant level settles back down to 190-deg. A longer cool off perios is used . This is a standard Church Automotive Testing test procedure.

Gear Selection

6MT cars are dyno'd in 4th. While 5th gear would have been more ideal, it produced undesirable spikes due to the simulated loads. 4th gear pulls did not have the same issue and was therefore used for all MT cars.
5AT cars are dyno'd in 3rd. Again, it would have been more ideal to run 4th here, but the behavior of the automatic transmission and torque convertor coupled with a loading dyno didn't produce satisfactory results (i.e. excessive Torque Convertor slipping, unintended down shifts, etc.)

Table of Result Summary
(in order of peak power output)

Name	Vehicle	Model Year	Production Date	Tranny	Odometer (miles)	Peak Power (rw hp)	Peak Torque (rw ft-lbs)	Go Fast Mods
Force Induction / NOS
GurgenPB (Gurgen)	Infiniti G35 Sedan	2003	04-2002	5AT	38,300	351.2	350.6	Power Enterprise Twin-Turbo system, LaBree Motorsports Resonated Test Pipes, Stillen Exhaust, NGK Iridium (one step cooler) Spark Plugs, 3-wire gounding kit. 4th gear used.
Dave	Honda Civic Si	???	???	5MT	???	322	212	Custom Single Turbo system, forged engine internals (9.5:1 pistons), Hondata ECU, plus others unkown mods
NismoV35 (David)	Infiniti G35 Coupe	2003.5	???	6MT	20,000	302.7	343.8	100-shot NOS wet system, Injen cold-air Intake, Custom Flowmaster Exhaust, ??? Spark Plugs (two steps cooler)
Natural Aspiration
THX723 (Clint)	Infiniti G35 Sedan	2004	06-2003	6MT	32,000	281.5	262.4	K&N drop-in filter, Z-tube, Kinetix Intake Plenum v.4, DC Spots SS Headers, Kinetix Resonated Test Pipes, Fujitsubo Legalis-R Exhaust + Y-pipe
Rever (Ruben)	Infiniti G35 Coupe	2004		6MT	11,000	270.0	258.5	Injen cold-air Intake, Crawford Intake Plenum v.5, Crawford high-flow Cats, Injen SES Exhaust, Technosquare ECU
Chenga (Andrew)	Infiniti G35 Sedan	2003.5	03-2003	6MT	10,500	269.6	259.7	Z-tube, K&N drop-in filter, Stillen Exhaust, Technosquare ECU
Randys_G (Randy)	Infiniti G35 Coupe	2004	07-2003	6MT	13,000	265.8	257.9	K&N Typhoon short-tube cold-air Intake, Kinetix high-flow Cats, Injen SES Exhaust
SoCalTed (Ted)	Infiniti G35 Sedan	2003.5	05-2003	5AT	12,000	264.3	256.0	Stillen cold-air Intake, Z-tube, Crawford Intake Plenum v.5, Crawford high-flow Cats, Stillen Exhaust, Unorthodox Racing Crank Pulley, Technosquare ECU, 10-wire grounding kit
alagolfer (Anthony)	Infiniti G35 Sedan	2003.5	08-2002	5AT	15,300	262.9	258.0	Jim Wolf Technology Intake, Z-tube, Crawford Intake Plenum v.5, Crawford high-flow Cats, Stillen Exhaust, Technoaquare ECU, Electric Fan conversion, 7-wire grounding kit
DaveO (Dave)	Infiniti G35 Sedan	2003	06-2002	5AT	16,500	262.0	260.8	Stillen cold-air intake, Z-tube, Crawford Intake Plenum v.5, Stillen Exhaust, Edge Racing Torque Converter, Technosquare ECU, Electric Fan conversion, 350Z Thrmostat, B&M ATF Cooler, 10-wire grounding Kit
DiamondG (Ken)	Infiniti G35 Coupe	2003.5	04-2003	6MT	10,000	259.1	254.7	Bone stock!
G35Lin (Edward)	Infiniti G35 Sedan	2003	04-2002	5AT	42,000	252.3	250.9	Jim Wolf Technology Intake, Z-tube, Borla Exhaust, Technosquare ECU
E_K (Albert)	Infiniti G35 Coupe	2003.5	05-2003	5AT	18,000	254.6	245.6	Jim Wolf Technology Intake, Z-tube, Crawford Intake Plenum v.5, Unorthodox Racing Crank Pulley, 6-wire grounding kit, Port & Polished Intake, Throttle Body & Plenum. 4th gear used
GP1 (Gerry)	Infiniti G35 Coupe	2004	06-2003	5AT	17,800	252.5	253.8	K&N drop-in filter, Z-tube.
Eldy (Eldridge)	Infiniti G35 Coupe	2004	04-2004	5AT	3,100	250.5	249.8	Z-tube only!
klg35 (Kim)	?Infiniti G35 Sedan	2004	10-2003	6MT	17,000	243.8	245.9	Z-tube, Y-pipe, NO mid-pipe, Crank Pulley, Air-box opening mod
fxG35rIdA (Reggie)	Infiniti G35 Sedan	2004	10-2003	6MT	2,500	241.8	245.2	K&N drop-in filter, Z-tube, Fujitsubo Legalis-R Exhaust + Y-pipe
NismoV35 (David)	Infiniti G35 Coupe	2003.5	???	6MT	20,000	240.3	241.6	Injen cold-air Intake, Custom Flowmaster Exhaust, ??? Spark Plugs (two steps cooler)
RoyMunson (Binh)	Infiniti G35 Coupe	2004	04-2003	5AT	6,000	239.3	241.4	Jim Wolf Technology Intake, Z-tube, GReddy EVO-II Exhaust, Unorthodox Racing Crank Pulley

Dyno Plots and Analysis

Peaks figures are easy to read and understand as they carry no ambiguitiesy. However, it only offers the tip of the ice-berg. There are much more than meets the eyes. Viewing and comparing the complete dyno plot is prefered whenever possible. In addition, wide-band air-fuel data should be accompanied to further provide clues to the state of tune for each car.

GurgenPB vehicle details Peak Power: 351.2 hp Peak Torque: 350.6 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.
Manifold Pressure (Boost)	Analysis to be added later.

Dave vehicle details Peak Power: 322.x hp Peak Torque: 212.x lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

NismoV35 (NOS) vehicle details Peak Power: 302.7 hp Peak Torque: 343.8 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

THX723 vehicle details Peak Power: 281.5 hp Peak Torque: 262.4 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

Rever vehicle details Peak Power: 270.0 hp Peak Torque: 258.5 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

Chenga vehicle details Peak Power: 270.0 hp Peak Torque: 258.5 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

Randys_G vehicle details Peak Power: 265.8 hp Peak Torque: 257.9 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

SoCalTed vehicle details Peak Power: 264.3 hp Peak Torque: 256.0 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

alagolfer vehicle details Peak Power: xxx.x hp Peak Torque: xxx.x lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

DaveO vehicle details Peak Power: 262.0 hp Peak Torque: 260.8 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

DiamondG vehicle details Peak Power: 259.1 hp Peak Torque: 254.7 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

G35Lin vehicle details Peak Power: 252.3 hp Peak Torque: 250.9 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

E_K vehicle details Peak Power: 254.6 hp Peak Torque: 245.6 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

GP1 vehicle details Peak Power: 252.5 hp Peak Torque: 253.8 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

Eldy vehicle details Peak Power: 250.5 hp Peak Torque: 249.8 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

klg35 vehicle details Peak Power: 243.8 hp Peak Torque: 245.9 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

fxG35rIdA vehicle details Peak Power: 241.8 hp Peak Torque: 245.2 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

NismoV35 (NA) vehicle details Peak Power: 240.3 hp Peak Torque: 241.6 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.

RoyMunson vehicle details Peak Power: 239.3 hp Peak Torque: 241.4 lbs-ft
Engine Output vs. RPM	Analysis to be added later.
Air-Fuel Ratio vs. RPM	Analysis to be added later.