Dynoying an auto

*The Law* · 08-05-2009, 12:37 PM

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?

*NmexMAX* · 08-05-2009, 02:09 PM

My Dyno Thread

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

*essential1* · 08-05-2009, 02:44 PM

I like the title.

*The Law* · 08-05-2009, 02:46 PM

Quote:

Originally Posted by essential1

I like the title.

LOL! I didn't catch that "y"

*essential1* · 08-05-2009, 02:56 PM

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.

*grey99max* · 08-06-2009, 09:25 AM

Quote:

Originally Posted by The Law

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?

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.

*The Law* · 08-06-2009, 09:32 AM

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

perkman87 · 08-06-2009, 10:10 AM

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

perkman87 · 08-06-2009, 10:11 AM

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

*The Law* · 08-06-2009, 10:22 AM

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

perkman87 · 08-06-2009, 10:30 AM

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

MIK3 · 08-06-2009, 07:09 PM

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.

Grand_hustle17 · 08-06-2009, 07:48 PM

yea... ill be keeping an eye out also

*essential1* · 08-07-2009, 06:44 AM

Quote:

Originally Posted by grey99max

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.

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.

*NmexMAX* · 08-08-2009, 01:02 AM

*johnnyd2k2* · 08-08-2009, 07:28 PM

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.

Grand_hustle17 · 08-08-2009, 07:40 PM

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

*johnnyd2k2* · 08-09-2009, 11:41 AM

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).

Grand_hustle17 · 08-10-2009, 06:03 PM

^^^ 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???

*johnnyd2k2* · 08-10-2009, 09:47 PM

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.

Grand_hustle17 · 08-12-2009, 05:31 PM

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

SteveB123 · 08-13-2009, 04:29 PM

Quote:

Originally Posted by johnnyd2k2

Auto, mods in sig minus the pulley, spacers, 18s (if it makes a difference)

Of course it matters...where do you think the power to spin up all that rotating mass comes from?

Grand_hustle17 · 08-13-2009, 05:00 PM

yea... i thought auto with intake and exhaust was in the 215whp area