Dynoying an auto

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08-05-2009, 11:37 AM

The Law

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Dynoying an auto

So I've been reading around and I've been seeing two different answers. One was that I should use 2nd gear to dyno but then I'd see another answer saying that I should use 3rd gear but start at around 3300rpm. Which one is true?

08-05-2009, 01:09 PM

NmexMAX

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http://forums.maxima.org/dyno-discus...no-thread.html

3500 RPM, whatever speed that is in 3rd is a good start. See what works for you, i.e. when it DS's, etc.

Last edited by NmexMAX; 08-05-2009 at 02:05 PM.

08-05-2009, 01:44 PM

essential1

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I like the title.

08-05-2009, 01:46 PM

The Law

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Quote:

Originally Posted by essential1

I like the title.

LOL! I didn't catch that "y"

08-05-2009, 01:56 PM

essential1

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Quote:

Originally Posted by The Law

LOL! I didn't catch that "y"

Pronounced like how it's spelled, it describes how I feel about the auto sometimes.

But as stated in the previous link, 3rd gear is better.

08-06-2009, 08:25 AM

grey99max

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Quote:

Originally Posted by The Law

3rd gear is best - start wherever you can so that the car doesn't downshift. Lock out the overdrive. I don't care about anything under 3000 RPM - that's where I launch from - but preferences may vary.

08-06-2009, 08:32 AM

The Law

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I guess I shall go test out what speed I need to be so that it won't downshift.

08-06-2009, 09:10 AM

perkman87

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well you tech roll to that rpm on the dyno then give it wot with o/d locked out

08-06-2009, 09:11 AM

perkman87

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oh Law, what tranny mod do you have, I saw your youtube vid and you chirp tires....

08-06-2009, 09:22 AM

#10

The Law

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Quote:

Originally Posted by perkman87

oh Law, what tranny mod do you have, I saw your youtube vid and you chirp tires....

No tranny mod at all. Truthfully, the chip was from my friend's car

08-06-2009, 09:30 AM

#11

perkman87

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Quote:

Originally Posted by The Law

No tranny mod at all. Truthfully, the chip was from my friend's car

oh man it happened at the perfect time. lol

08-06-2009, 06:09 PM

#12

MIK3

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Heh. Yeah, 3rd gear makes sense seeing as us 6MTers use 4th gear. Looking forward to the results with that Cattman 3". Keep us posted man.

08-06-2009, 06:48 PM

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Grand_hustle17

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yea... ill be keeping an eye out also

08-07-2009, 05:44 AM

#14

essential1

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Quote:

Originally Posted by grey99max

I dont think the A33B has an overdrive button. (PRND321 if i'm not mistaken) But does putting it in 3 essentially do the same thing as locking out OD? I'm talking about the effect is has on the torque converter by the way.

I assume its no different, but you never know.

08-08-2009, 12:02 AM

#15

NmexMAX

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08-08-2009, 06:28 PM

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johnnyd2k2

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3rd gear at about 70mph or 4k rpm go wot and it won't downshift and you'll get your peak #s the graph should be kinda flat without any major spikes or dips. Here's what mine looked like.

08-08-2009, 06:40 PM

#17

Grand_hustle17

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^^^ was this stock??? auto or 6spd

08-09-2009, 10:41 AM

#18

johnnyd2k2

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Quote:

Originally Posted by Grand_hustle17

^^^ was this stock??? auto or 6spd

Auto, mods in sig minus the pulley, spacers, 18s (if it makes a difference) and with an Injen intake (not my SRI).

08-10-2009, 05:03 PM

#19

Grand_hustle17

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^^^ hmm just making sure... just a glimpse of what my numbers should look like... lemme as you suttn... was the SSIM worth it??? i heard unless you have a TS ecu then you probebly lose power.... and was your 1/4 times with all the mods???

08-10-2009, 08:47 PM

#20

johnnyd2k2

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Definatly worth it the 70 to 100+ pull is amazing, it screams all the way it makes it seem the power is endless. TS and auto

and yes that is my PB but I can definatly improve we'll see how I do on Wed. with the SRI.

08-12-2009, 04:31 PM

#21

Grand_hustle17

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and why is TS and auto's a no no???... 4th gen auto's made more power wuth the JWT ecu so i figured the 5.5's would... i'd like to know why its a no no