Pulse Tuned - Dyno Sheets Please.

[tehx]

Yes agree! In particular a bigger TMI is going to give you cooler air, particularly in the summer heat. This will decrease your chances of PING and increase power on hot days. That was my reason for a bigger TMI, more for reliability than a performance mod.

The torque figures would be good to see as there are quite large gains to be made in this area. The extra torque betters drivability in that you don't need to give so much boot to accelerate away & reduce down shifting when accelerating in a higher gear. Its the torque you 'feel' when accelerating.

[parso_rex]

Well who needs mods if you can get 182 kw on a stock Lib with just a tune?

Someone who is concerned about combustion chamber temps and engine longevity.

Remember that run was done in 6 cylinder Forced induction Shootout mode . There is shootout mode and then there is also quite a few other shootout modes.
I'm a bit of a bastard aren't I

[GTSPECB STI]

Well who needs mods if you can get 182 kw on a stock Lib with just a tune?

Someone who is concerned about combustion chamber temps and engine longevity.

I would have thought you guys picked my cynical post

Looks like you picked up around 40 kw which is an enormous jump for just a tune. The torque gain is the part of the story that your missing here? As mentioned the torque gains to be made by good tuning are massively important to way the car will drive.

[smythie]

The torque curve can be derived directly from the chart. Divide the power by the speed and you get tractive effort in Newtons.

[GTSPECB STI]

The torque curve can be derived directly from the chart. Divide the power by the speed and you get tractive effort in Newtons.

where's the nice curve for comparison sake

[cpitts]

The torque curve can be derived directly from the chart. Divide the power by the speed and you get tractive effort in Newtons.

where's the nice curve for comparison sake

Just go of the slope of the line. The closer to 45' it is, the closer it is to a flat line, the closer to 0' it is, the faster the line is heading south.

The new torque curve is a little flatter and a bit higher, but otherwise the same.

EDIT: Here ya go GTSPECB STI Don't say I don't do nuthin for ya.

[GTSPECB STI]

bahahahahahah gold back to pre-school tuning 101

[smythie]

The torque curve can be derived directly from the chart. Divide the power by the speed and you get tractive effort in Newtons.

where's the nice curve for comparison sake

Here's something I put together in Excel in 10 minutes reading off the chart

[cpitts]

Hey Smythie, can you overlay your picture onto mine? I think I got it pretty close really.

[GTSPECB STI]

MS Excel use scores points for being unique but still doesn't quite suit Smythie

I suggest you make one using rpm vs hp / torque ?

[smythie]

show me a relationship between revs and road speed for the gear the run was done in and it can be done easily.

[tehx]

Seems that torque goes downhill after nailing a cat! That said the stock tune evens out a little more - subaru is so unforgiving.
Therefore, I deduce that should you be a cat hater, the Stock tune is the way to go!

[blacktop™]

why are all these pulse sheets in KM/H rather than RPM? who cares what the road speed is if ur driving something with an incredibly laggy tune...

[subnub]

Because road speed can be taken from the dyno's own rollers without any further equipment required. To read RPM the dyno needs to have an input for it (which often isn't included, and for which I've heard some dyno mobs charge a fair bit) and it also has to be connected up to the car, which is relatively trivial but is a little more messing around and needs to be taken into account.

It's really not that hard to work out from the road speed numbers anyway, even with an auto you'd get fairly close assuming you don't have a 4k stally or something.

[GTSPECB STI]

The dyno dynamics chassis dyno specifications as follows, it does provide for RPM engine speed so it must be the end user who is electing not to provide it I suggest.

Specifications
Dyno Dynamics - AWD450DS Chassis Dynamometer
Applicable Vehicles
• Rear wheel drive
• Front wheel drive
• 4WD/AWD cars, recreational vehicles (with selectable single axle drive)
• 2WD/4WD race cars
• Sport utility vehicles
• Light commercial vehicles
• Motorcycles (with optional adapter)
Transmission Types
• Front wheel drive
• Rear wheel drive
• All wheel drive
• Locked Front:Rear AWD
• Full time AWD
• Viscous coupled AWD
• Intelligent european AWD (Volvo dog clutch)
• Variable ratio Front:rear
Vehicle / axle weights
Maximum vehicle weight 4,500 kg (9,900 lb)
Maximum axle weight (per axle) 2,250 kg (4,450 lb)
Vehicle wheelbase
(Alternative wheelbase dimensions available on request. Refer factory)
Minimum wheelbase 2,250 mm (89")
Maximum wheelbase 3, 500 mm (138")
Power, Tractive Effort, Torque and Speed (Note 3)
Front Axle
Maximum power graphing 675 kW (900 HP)
Max. tractive effort graphing 20,700 N (4,650 lb)
Max. roller torque graphing 2,250 Nm (1,650 ft lb)
Max. axle torque graphing (Note 1) 6,150 Nm (4,500 ft lb)
Max. engine torque graphing (Note 2) 2,100 Nm (1,500 ft lb)
Max. power steady speed 450 KW (600 HP)
Max. tractive effort steady speed 13,800 N (3,100 lb)
Max. roller torque steady speed 1,500 Nm (1,100 ft lb)
Max. axle torque steady speed (Note 1) 4,100 Nm (3,000 ft lb)
Max. engine torque steady speed (Note 2) 1,400 Nm (1,000 ft lb)
Max road speed 200 km/h (120 MPH) - 250 km/h (150MPH)*
Rear Axle Standard Rear Aux retarder/PAU*
Maximum power graphing 675 kW (900 HP) 1,350 kW (1,800 HP)
Max. tractive effort graphing 20,700 N (4,650 lb) 41,400 N (9,300 lb)
Max. roller torque graphing 2,250 Nm (1,650 ft lb) 4,500 Nm (3,300 ft lb)
Max. axle torque graphing (Note 1) 6,150 Nm (4,500 ft lb) 12,300 Nm (9,000 ft lb)
Max. engine torque graphing (Note 2) 2,100 Nm (1,500 ft lb) 4,200 Nm (3,000 ft lb)
Max. power steady speed 450 KW (600 HP) 900 kW (1,200 HP)
Max. tractive effort steady speed 13,800 N (3,100 lb) 27,600 N (6,200 lb)
Max. roller torque steady speed 1,500 Nm (1,100 ft lb) 3,000 Nm (2,200 ft lb)
Max. axle torque steady speed (Note 1) 4,100 Nm (3,000 ft lb) 8,200 Nm (6,000 ft lb)
Max. engine torque steady speed (Note 2) 1,400 Nm (1,000 ft lb) 2,800 Nm (2000 ft lb)
Max road speed 200 km/h (120 MPH) - 250 km/h (150MPH)*
Both Axles Standard Rear Aux retarder/PAU*
Maximum power graphing 2,000 kw (2,700 HP) 2,000 kW (2,700 HP)
Max. tractive effort graphing 41,400 N (9,300 lb) 62,100 N (13,950 lb)
Max. roller torque graphing 4,500 Nm (3,300 ft lb) 6,750 Nm (4,950 ft lb)
Max. axle torque graphing (Note 1) 12,300 Nm (9,000 ft lb) 18,450 Nm (13,500 ft lb)
Max. engine torque graphing (Note 2) 4,200 Nm (3,000 ft lb) 6,300 Nm (4,500 ft lb)
Max. power steady speed 900 kW (1,200 HP) 1,350 kW (1,800 HP)
Max. tractive effort steady speed 27,600 N (6,200 lb) 41,400 N (9,300 lb)
Max. roller torque steady speed 3,000 Nm (2,200 ft lb) 4,500 Nm (3,300 ft lb)
Max. axle torque steady speed (Note 1) 8,200 Nm (6,000 ft lb) 12,300 Nm (9,000 ft lb)
Max. engine torque steady speed (Note 2) 2,800 Nm (2,000 ft lb) 4,200 Nm (3000 ft lb)
Max road speed 200 km/h (120 MPH) - 250 km/h (150MPH)*
Roller Chassis
Retardation and Loading
Retarder/PAU type Magnetic eddy current retarder/PAU - Aux retarder/PAU
Load/speed availability High load available at all speeds
Cooling fins per retarder/PAU 84
Rollers
Drive roller traction surface High grip Dyno Dynamics unique square cut knurl
Front & rear rollers linked No (fully independent).
Roller Diameter 217 mm (8.5") drive rollers
Roller length 855 mm (33")
Track Maximum (Note 4). 2180 mm (86")
Track Minimum (Note 5). 465 mm (18")
Roller rotation Bi-directional
Wheelbase adjustment
Remote adjustment From command module
Wheelbase lock Self locking
Electronic Adjustment Front:Rear
Exit Brake Electromagnetic roller exit brake
Bearings Standard Aux Retarder/PAU*
10 12
Balance Rollers and flywheel dynamically balanced
Traction

Roller surface Dyno Dynamics unique square cut knurl
Low tyre temperature operation
Heavy duty traction control system*
Tie down points per bed 8
Traction control mount points 4
Axle download User adjustable (with straps or optional airbag)
Inertias (Per axle)
Roller inertia and retarder (combined) Standard Aux Retarder/PAU*
2.590 kgm2 (61.5 lbft2) 3.566 kgm2 (84.6 lbft2)
Bed equivalent inertia (typical) 219 kg (483 lb) 302 kg (665 lb)

Installation and Dimensions
Refer installation drawings for detailed dimensions
Length extended 4,400 mm (173")
Single retarder width 2,900 mm (114")
Twin retarder width 3,390 mm (133.5")
Roller surface above ground
Above ground

In pit
390 mm (15") 40 mm (1.5")
Retarder cover above ground 550 mm (22") 150 mm (6")
Dyno Dynamics DS computerised control system
Loading & Balancing 4WD/AWD Smart system for correct (safe) loading under all conditions.
Instrumentation
Computer Custom turn-key computer system
Monitor* Country dependent - refer factory
Additional monitors* Additional monitors and remote displays available - refer factory
Command Module TouchScreen PDA (BlueTooth)
SnapShot button
Roller Brake button
Reset, Next Step button
Display: Desired Speed, Load, Ramp Rate, RPM, etc
Ramp: Up-Hold-Down switch
Fan over-ride control
Manual & Auto wheel base adjustment control
Wheel position indicator
Balance auto/manual
Manual balance front:rear control
Cabinet* Range of heavy duty steel cabinets available - refer factory
Automatic fan control* On-Off-Auto. Controls 2 fans. Cool-down timer
Power loss calculator Calculates engine power / torque from wheel power
Measurement and Display
Power display resolution 0.1 kW (0.1 HP)
Tractive effort display resolution 10 N (1.0 lb)
Force measurement Precision electronic shear beam load cell
Interface Vac pressure boost*
Inlet air temperature
High speed Air:Fuel ratio/Lambda*
Thermo-couple inputs*
Auxiliary inputs*
Fan control
Tachometer Multiple inputs (refer to tachometer documentation)
Atmospheric Correction Screen Inlet air temperature
Ambient temperature
Barometric pressure
Relative humidity
Mechanical efficiency (Dyno Dynamics ATMC2 only)
Resultant correction factor
Bar Screen
Date, time Used to date and time stamp reports
Customer name 35 characters
Test details "Poor economy, low power "etc.
Vehicle identification Vehicle registration, license, race number etc
RPM:Road speed ratio Derived from ignition system, vehicle ECU, roller speed, injector, optical pick-up*
Power Analogue bar & digit: kW (HP) [0.1 kW (0.1 HP) resolution]
Tractive Effort Analogue bar & digit. N (lb) [1 N ( 0.1 lb) resolution]
Speed Analogue bar & digit. km/h (MPH) [0.1 km/h (0.1 MPH) resolution]
Inlet air temperature Degrees C (F) [0.1 resolution]
Fuel mixture* Petrol (gasoline), LPG (propane), alcohol, diesel Air:Fuel ratio and Lambda [0.1 AFR/0.01 Lambda resolution]
Manifold vacuum/boost* Metric and imperial units. Gauge & absolute reference
Engine RPM Ignition, ECU, roller, optical pick-up*
Odometer (distance traveled) km (miles) [0.1 resolution] Zero reset on Command Module
Engine torque Nm (ft lb)
Range of user definable inputs Temp, volts, pressure drops, TPS, etc
Graph screen
Road power kW (HP)
Road tractive effort N (lb)
Road speed km/h (MPH)
Run distance km/h (mile)
Engine power kW (HP)
Engine torque Nm (ft. lb)
Engine speed RPM
Fuel mixture* Petrol (gasoline), LPG (propane), alcohol, diesel Air:Fuel ratio and lambda
Vacuum / boost* Metric and imperial units. Atmospheric & absolute reference
Time Seconds
User defined inputs Up to 4
Coast-down correction Based on coast-down test
Drive-train loss Based on coast-down test, ShootOut specification loss
Auto Graph SnapShot Triggers SnapShots at user defined road speed or engine speed interval
Large Digits on graph screen
Air:Fuel ratio Air:Fuel ratio or Lambda
Vacuum / boost* Metric and imperial units. Atmospheric & absolute reference
RPM Derived from ignition system, ECU, roller speed, optical pick-up*
Graph Types Full screen: Diagnostic and performance graphs
High resolution
Step ramp (user definable step)
Step graph
Snap graph
SnapShot Screen Data acquisition of values defined by user
User definable recording
Work performed
Work history
Test Modes
Constant speed mode Dial in the desired speed
Constant load mode Dial in the desired load
Ramp mode Ramp Up-Hold-Down. Dial in the desired acceleration
Cooling fans
Range of cooling fans depending on country of installation
Cooling fan control*
Software Software: independent control of two fans (or other devices):
On-Off-Auto Programmable cool-down timers
Command Module Manual fan control over-ride
Electrical Supply - (Varies with country and region of installation, refer factory)
Australia Dynamometer: 415V 50 Hz
Fans: 240 - 250 V single phase / 415V three phase
Europe Dynamometer: 380 - 415 Volt three phase 50 Hz
USA Fixed installation 220 -250V two phase 60 Hz
Shipping weights and dimensions (Approximate)
Dynamometer chassis crated - Crate 1
1,000 kg 1,100 mm x 910 mm x 3,130 mm
2,200 lb 43" x 36" x 123"
Crate 2
1,215 kg 1,380 mm x 910 mm x 3,1302 mm
2,675 lb 54.3" x 36" x 123"
AWD/4WD cabinet and control system
285 kg 790 mm x 880 mm x
1900 mm
630 lb 31" x 34.6" x 74.8"
Small cabinet and control system (computer monitor not included)
200 kg 790 mm x 880 mm x
1400 mm
440 lb 31" x 34.6" x 55"

* Denotes Optional

Note 1: Assumes 600 mm (23.5") tyre diameter
Note 2: Assumes max torque occurs @ 3,500 RPM
Note 3: Assumes sufficient traction
Note 4: Distance between outer roller ends
Note 5: Distance between inner roller ends