Need help analyzing EvoScan logs

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Sep 19, 2006 | 11:33 AM

#16

nj1266

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From: USA

If you look at your KS on the second log you will notice that the KS increases as you approach peak torque/boost. After that the KS goes down, but it is still there. To me that is a sign that you are running too much timing in that area. Do you have an AFR meter? What is your AFR in the peak torque/boost area.

Sep 19, 2006 | 12:54 PM

#17

heyzeus11

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From: Hampton/NN, VA

Quote:

Originally Posted by mchuang

Get on the freeway and do a forth gear pull to put more load on the car. I do 2 forth gear pulls maybe a minute apart to make sure the car can handle higher load. The reason I do this is because I did a 3rd gear pull and then jumped on the freeway and did a 4th gear one time both pulls about a minute apart and the 3rd gear pull showed no knock, but the 4th gear pull picked up knock at the high rpm range from about 5500 to 7200.

could the road he was driving on been on a hill; first log downhill, second log uphill? Correct me if I am wrong but doesnt driving up a hill increase load? Maybe I am reaching with this?

Sep 19, 2006 | 05:34 PM

#18

mchuang

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From: h town

Quote:

Originally Posted by heyzeus11

could the road he was driving on been on a hill; first log downhill, second log uphill? Correct me if I am wrong but doesnt driving up a hill increase load? Maybe I am reaching with this?

No by load I mean staying in boost longer for example, your 1000-7000 rpm range will run out faster in first gear than in 4th gear. So that means the time that your are boosting is very short in 1st gear compared to the time you are boosting in 4th gear which lasts a while.