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-   -   Slower acceleration after cleaning MAF and changing the air filters (http://www.the370z.com/intake-exhaust/51186-slower-acceleration-after-cleaning-maf-changing-air-filters.html)

BigT 03-12-2012 11:29 AM

Do another run with the oil temps hovering just below the 180 degree mark and report back.

edub370 03-12-2012 11:30 AM

If u could somehow edit the vids into 1 vid that would play the 2 side-by-side it would be easier to see what the differences could be. since u said u are using the paddles, the difference could be something as simple as shift points

gaveup 03-12-2012 12:26 PM

Quote:

Originally Posted by Kaiser370z (Post 1594418)
i used contact cleaner to clean them
...........
how did i measure these times ??
very simple . i recorded a video for my acceleration and import it in a video editor
take the starting time and finishing time and do a simple math with them ^_^

Uhm, not for anything, but this has to be the absolute worst possible way to measure any sort of acceleration. When you're dealing with just mere seconds, there are far too many factors that would go into the recording alone that would mess these numbers up. This is one of those times where even a garbage gtec would be a better way to guess acceleration times...

Like, how are you measuring the start and finish of each run? Are you basing it off a speedo or what? Most speedometers are not accurate 100% of the time the higher up you go. Unless you have a 1/4 mile perfectly measured out and have a sure fire 100% method of measuring the time, you're numbers will always vary.

Cmike2780 03-12-2012 12:53 PM

Quote:

Originally Posted by gaveup (Post 1594572)
Uhm, not for anything, but this has to be the absolute worst possible way to measure any sort of acceleration. When you're dealing with just mere seconds, there are far too many factors that would go into the recording alone that would mess these numbers up. This is one of those times where even a garbage gtec would be a better way to guess acceleration times...

Like, how are you measuring the start and finish of each run? Are you basing it off a speedo or what? Most speedometers are not accurate 100% of the time the higher up you go. Unless you have a 1/4 mile perfectly measured out and have a sure fire 100% method of measuring the time, you're numbers will always vary.

Now that you mention it, I think you're right. I was assuming he was using cameras outside the car with marked reference points, kind of like they do on Mythbusters. If he's just pointing a camera at the speedo, it's not going to be all that accurate. Heck, downloading that app for your iPhone would be more accurate.

TerribleONE 03-12-2012 12:57 PM

:iagree: this is why I asked!

BigT 03-12-2012 12:58 PM

Also, recorded runs should be done on the same stretch of road so there isn't too much of a variance between going up or down hill.

mantella87 03-12-2012 01:32 PM

I think it's all in your head bro.

Skull Crusher 03-12-2012 03:09 PM

Way to many variables to consideration and give an accurate answer. Unless you damaged the MAF in some way. Other than this, it can boggle the mind.

Cmike2780 03-12-2012 03:13 PM

I also have a feeling the ECU reset had something to do with it. I think the ECU needs to re-learn everything before you get it running back to normal. Drive it around for a day or so and then run the "test" again.

Red__Zed 03-12-2012 03:33 PM

While his speedo cam test may not be accurate, it should be sufficiently precise. Plenty of precision to note a delta t.


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