tsamanis

Hello,

I used vag-com to log block120 on my fab1.4 16v and I got the following results. I took the measurements at 3rd gear....

How reliable are these readings? I know that the measurements are in the crankshaft and not at the wheel...Any indication how much are the losses?

My fab is chipped, with green twister air filter, new headers and new exhaust as well...

Your comments will be appreciated….

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Ninj

Could you perhaps give a numptie vag-comer (me!) a quick guide on how to do this?

Thanks and Rgds

Richie

Goochie

this may be of interest:

http://www.seatcupra.net/forums/show...ight=block+120

tsamanis

first off all I used vag-com 311.2-N for the rest just follow steps

1. From Common select the Engine button (01-Engine).


2. In the screen that will appear, If I remember correctly, there is a button
(08-Meas.Block) press it.


3. It will appear a screen where you put the measuring blocks that you want log. You can log up to 3 blocks at the same time. Just put 120 in the first box and press "Go". This will give in real time the engine RPM and engine Torque (in Nm)
4. At the end of the form there is the "Log" Button. Press it and define the file where the data will be written.

That was the vag-com part. Now I would suggest doing the measurements together with another person (seating at back). I took the measurements in 3rd gear. Actually from 1st gear I went directly to 3rd gear and I logged the data from low rpm up to 6200rpm. When you reach the revs just press the clutch and wait until your speed drops.


5. Stop the data logging.

Now the Excel part. Rename the file to .txt and import it to excel. Import it as comma (",") delimeted.

In order to calculate HP you need to convert Nm (torque) to Foot pounds. Then use the following type to calculate the HP in PS.

HP = Torque * RPM / 5252

Use a XY Scatter chart to graph the results.

Hope I helped a bit.

Takis

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Osram Silver Star, Philips Cool Blue , PIAA Wipers ,
AutoGauge, SeatSport strut brace

Ninj

Thanks a lot - that will help no end.
Whats the conversion from PS to BHP again? I seem to remember multiplying PS by .98 to give BHP

Thanks again

Rich

GaryM

Or use this already made up spreadsheet, just copy and paste your info from a block 120 log into it.

http://www.ross-tech.net/vag-com/exa...0_Tutorial.xls

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Ninj

Is a Block120 test best done with ASR on or off?

Might be a thickie question but Ive heard conflicting reports that a) Block 120 is a measure of ASR torque and b) It needs to be off for an accurate reading

Thanks for any clues

Rich

mannyo

I would do it with the ASR switched off, although if you choose the right gear the ASR shouldnt activate anyway. On a rolling road with a 5 speed box the tester normally uses 4th, but unless you use a private test track you will be doing silly speeds before the end of the run.

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Ninj

That makes sense. I have access to a private road but even then 4th would be a bit hairy

Thanks & Rgds

Rich

Goochie

Is there a block to log road speed at the same time?

Ninj

There must be, does anyone know how many blocks can be logged at once, I think 3 but not sure.

Also, is there a a complete list of blocks, so far I know:

002 - MAF
115 - Boost
120 - Torque (ASR Derived)

Thanks

Richie

tsamanis

have you tried block 5?

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Osram Silver Star, Philips Cool Blue , PIAA Wipers ,
AutoGauge, SeatSport strut brace

Goochie

Here we go (blatent lift from www.seatcupra.net)

001 Idle Speed Coolant Temp O² Sensor Adjust. For Basic
002 Idle Speed Engine Load Injection Timing Air Mass Injection
003 Idle Speed Air Mass Injection Throttle Angle Ignition Angle
004 Idle Speed ECM Voltage Coolant Temp Intake Air Temp
005 Idle Speed Engine Load Vehicle Speed Operating Condition
006 Idle Speed Engine Load Intake Air Temp High Correction Factor
010 Idle Speed Engine Load Throttle Angle Ignition Angle
014 Idle Speed Engine Load # of misfires Misfire Recognition
020 timing retard 1 timing retard 2 timing retard 3 timing retard 4
022 Engine Speed Engine Load timing retard 1 timing retard 2
023 Engine Speed Engine Load timing retard 3 timing retard 4
028 Engine Speed Engine Load Coolant Temp Knock Sensor Test
030 Pre Cat 0² Post Cat 0²
032 Idle 0² Adaptation Run 0² Adaptation
033 Pre-cat 0² Reg Pre-cat 0² Voltage
034 Engine Speed Cat Temp P-C 0² Duration P-C 0² Age Test
036 Post-Cat 0² Voltage Post-Cat 0² Test
037 Engine Load Pre-cat 0² Voltage P-C 0² Dwell Result
041 Pre 0² Heater Pre 0² Heater Post 0² Heater Post 0² Heater
043 Engine Speed Cat Temp Post 0² Heater
046 Engine Speed Cat Temp Amplitude Radio Cat Test
050 Idle Speed Spec. Idle A/C Condition A/C Comp Control
054 Engine Speed Operating Condition Throttle Position Throttle Angle
055 Idle Speed Idle Control Idle Adaptation Operating Condition
056 Idle Speed Spec. Idle Idle Control Operating Condition
060 Throttle Sensor 1 Throttle Sensor 2 Adaptation Step Count Adaptation Condition
061 Engine Speed Throttle Voltage Throttle Drive Operating Condition
062 Throttle Sensor 1 Throttle Sensor 2 Throttle Position Sender 2 TPS
066 Vehicle Speed Brake Position Cruise Speed Cruise Switch
070 Evap Duty Cycle
071 Emission Reed Fault Message Diag. Status Diag Test
077 Engine Speed Air Mass Injection Secondary Air Diag Test
089 Distance with MIL Tank Empty
099 Idle Speed Coolant Temp Pre-Cat 0² Reg 0² Sensor Control
100 Ready Code Coolant Temp Time Since Start Diag Status
107 Idle Speed 0² Control
111 RPM Range RPM Range RPM Range RPM Range
113 Idle Speed Engine Load Throttle Drive Air Pressure
114 Specified Engine Load Corrected Load Engine Load Bypass Duty Cycle
115 Engine Speed Engine Load Spec. Boost Actual Boost
116 Engine Speed Fuel Correction Factor Air Temp Correction
117 Engine Speed Throttle Position Throttle Drive Specified Boost
118 Engine Speed Intake Air Temp Boost Duty Cycle Actual Boost
119 Engine Speed Charge Limit Boost Duty Cycle Actual Boost
120 Engine Speed Spec. Load Current Load ASR Status
125 ABS Status Instrument Cluster

And from Ross-Tech:

http://www.ross-tech.com/vag-com/m_blocks/index.html

Ninj

Top job thanks Goochie

Rich

Goochie

Once again from www.seatcupra.net I note that block 120 is not that accurate for a remapped car. This seems to be true as my car only managed 169 PS on VAG-COM but 220 at Jabba. There seems to be a way to work out the difference but I'm not sure yet.

VAG-COM logged 214 lb/ft compared to 223 lb/ft at Jabba.

Tomorrow I'm going to try finding a block for road speed then do some speed runs. Though I could always calculate the speed from the RPM and gear I suppose.

WW_VRS

It's more likely to be correct, based on seeing several posts where JBS rollers give MUCH lower readings than the Jabba ones. Dunno which ones are correct between those two, but I'd hazard a guess the ones nearer to the ECU readings will be the right ones

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Goochie

I doubt you'd see a difference of 50PS though. We've seen some difference between Jabba's rollers and those at AMD but never that much.

Edit to add:
Following some web-crawling of various sources, to get a more accurate figure you need to take into account the MAF readings for airflow. Basicially, in my instance this means multiplying by 1.31.

Revised power figure from VAG-COM is 218.77 bhp much much closer to what I was expecting.

Ninj

Moved to new thread