Evo_Matt

Hi,

I am still very new to EvoScan and I noticed today that after doing some fifth gear pulls that when I replay my log file or take a look at the graphs for rpm the beginning reading (in this case around 3000rpm) is close, but at the other end when the tach in car reads 7.5k rpm and the log file says I was moving at 95mph the rpm data says I was at 4300rpm.

Is this because the data collection rate for the rpm signal is that slow? This log file recorded almost 30seconds of data, I would expect it to at the least make a few big jumps in rpm in there to keep up.

I did a few pulls in 5th trying to understand what causes the throttle hang before i try and fix it.


Thanks for the help!

Jack_of_Trades

iTrader: (17)

How many parameters we you logging at once? How new is your laptop?

Evo_Matt

28 parameters and it is a 4 month old IBM T61P laptop.

My baud rate is set at 15625, but I am unsure about what rate exceeds the cable, usb port on my computer, and the ecu.

thanks!

tephra

iTrader: (6)

5th gear pull?

yikes - hope it was on a dyno

you only really need to log about 8 things... doubt that was the problem thou...

what does it read when just idling or revving to 3k?

Evo_Matt

Maybe my terminology is incorrect. I was just logging full throttle from 3k in 5th to about 95mph.

Yeah, after I looked at what I was logging to answer your question I realized I was being excessive.

It reads accurately at idle and when I start the logger the rpm the engine is spinning is accurate.

I have also noticed that I have been unsuccessful in fully logging a 3rd gear 2.5k to redline sprint. The logger seems to cut out very shortly after starting the logging. I need to try this again though to confirm.

tephra

iTrader: (6)

ahh ok well 4500rpm is about right for 95mph in 5th...

if you are getting weird connection problems try upgrading evoscan

Evo_Matt

Oh good point! Thanks!

Ha, so I was getting confused about which log file I was looking at. Is there a way to change the default naming?

Also, can I turn the baudrate up on this B?

tephra

iTrader: (6)

no

and dont bother, just log less stuff

MSP608

iTrader: (11)

Hey, bumping this thread since my problem is rpm related and people seem to hate when you start new threads.

I just got my stock turbo back on and now when I goto log with EvoScan it won't read rpm at all. I have it ticked, and when I look at my log it's ticket there too but displays nothing.

Any help?