2004.5 Automatic Dyno Results
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2004.5 Automatic Dyno Results
Just got back from gettin' up on the DynoJet at one of the local technical institutes here in Houston [I will be going there in Aug.]. Five pulls for free sounded good, lol.
They woud not let me do a 4th gear pull [1:1 for the Coupe Autos] because of something about turning the machine and how the numbers would be inaccurate - They said my car doesn't have enough torque to turn the drums under the rear tires...
But, y'all wanna know the numbers... These were done in either 2nd or 3rd gear, none in 4th.
Average Temp: 100.5*
Average Humidity: 26%
Runs:
HP: 229.31
TQ: 191.27
HP: 219.96
TQ: 202.56
HP: 228.60
TQ: 258.71 >Best TQ
HP: 100.00 > Oops! Lol.
TQ: 100.00 > Oops again!
HP: 229.70 > Best HP
TQ: 223.73
Runs started at 3000RPMs and ended around 6700RPMs.
The numbers are descent I guess... But I had to get a baseline before the TT went on to se how much I improve
They woud not let me do a 4th gear pull [1:1 for the Coupe Autos] because of something about turning the machine and how the numbers would be inaccurate - They said my car doesn't have enough torque to turn the drums under the rear tires...
But, y'all wanna know the numbers... These were done in either 2nd or 3rd gear, none in 4th.
Average Temp: 100.5*
Average Humidity: 26%
Runs:
HP: 229.31
TQ: 191.27
HP: 219.96
TQ: 202.56
HP: 228.60
TQ: 258.71 >Best TQ
HP: 100.00 > Oops! Lol.
TQ: 100.00 > Oops again!
HP: 229.70 > Best HP
TQ: 223.73
Runs started at 3000RPMs and ended around 6700RPMs.
The numbers are descent I guess... But I had to get a baseline before the TT went on to se how much I improve
The dyno numbers are a mess. They have no consistency and the torque numbers are everywhere. Also, your numbers are too optimistic due to 2nd and 3rd gear runs. I say go to a better shop and get a real dyno before you put on your TT.
Homie... dynos on the autos are not as easy to read because of the torque converter. You cannot just pick off the peak numbers. you need to post the dyno charts so that I (we) can tell where the torque peak actually is. I would almost bet it's in the 213-18 range.
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Originally Posted by HomieG35
Just AEM CAI. 10,200 miles.
Also, the SLIP and ABS lights are on - is this normal? VDC was turned off before I started.
Also, the SLIP and ABS lights are on - is this normal? VDC was turned off before I started.
Also, whem you dyno, find out if it is SAE corrected or uncorrected numbers. It can make a big difference. As an example, last time I dyno'd before my headers, my uncorrected was 234, corrected was 227.
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Here ya go, kinda blurry and half assed...let me know if you can read it OK though.
I will not argue with anyone. I don't know much about the process except you get up on the dyno and floor it in a gear [yes, its supposed to be 4th which has the 1:1]. I won't fight whether my numbers are high, low, or average because in a short while it won't matter anymore Someone has said there is a lack of info [especially the autos] on information about the base numbers etc. I am just trying to add to what little there is and try to help a few people out. Input reguarding the topic and anything to try and help make it better is always appreciated! I will try to found out the SAE Correction information you are talking about and let you know!
I will not argue with anyone. I don't know much about the process except you get up on the dyno and floor it in a gear [yes, its supposed to be 4th which has the 1:1]. I won't fight whether my numbers are high, low, or average because in a short while it won't matter anymore
Someone has said there is a lack of info [especially the autos] on information about the base numbers etc. I am just trying to add to what little there is and try to help a few people out. Input reguarding the topic and anything to try and help make it better is always appreciated! I will try to found out the SAE Correction information you are talking about and let you know!
ok... that is a pretty bad picture... but i think i can make out the light green and pink torque traces...they seem to be in the 217-219 range... pretty much what i predicted.
Also, the guy who did the dyno doesn't know which way is up... can't belive how plain stupid some of these dyno operators are. Your 04.5 car WILL hold gear in manual mode... So... Here is what you need to do next time:
1) Pull either the brake light (fuse box down by your left foot), or the VDC fuse (fuse box in the engine compartment right next to the battery). That will disable VDC and ABS. DOn't forget to reconnect these afterwards.
2) Run your car up to about 32 mph or so (if i remember right), just as soon as the manual mode allows you to shift into 4th gear, when it does, let the car decelerate to about 1500-2000 rpm, keeping your eye on the gear indicator to make sure it didnt downshift from 4th. Right around 1500-2000 rpm (as low as possible while still in 4th gear), start the dyno and floor the gas pedal... and hold on to your socks
That ought to give you a REAL nice full sweep torque (and hence HP) curve.
Also, the guy who did the dyno doesn't know which way is up... can't belive how plain stupid some of these dyno operators are. Your 04.5 car WILL hold gear in manual mode... So... Here is what you need to do next time:
1) Pull either the brake light (fuse box down by your left foot), or the VDC fuse (fuse box in the engine compartment right next to the battery). That will disable VDC and ABS. DOn't forget to reconnect these afterwards.
2) Run your car up to about 32 mph or so (if i remember right), just as soon as the manual mode allows you to shift into 4th gear, when it does, let the car decelerate to about 1500-2000 rpm, keeping your eye on the gear indicator to make sure it didnt downshift from 4th. Right around 1500-2000 rpm (as low as possible while still in 4th gear), start the dyno and floor the gas pedal... and hold on to your socks
That ought to give you a REAL nice full sweep torque (and hence HP) curve.
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Everything Gurgen said is DEAD ON! The torque converter slips and gives a ficticous reading on automatics. No biggie, just follow his directions above and you'll be set. Also, you CAN dyno in 4th. I've held 2 dyno days now and we've ALWAYS dynoed the automatics in 3rd or 4th. The only reason why they didn't like to dyno in 4th was due to the excessively high speeds the car was at near redline.
BTW, I have a 6MT and I dyno in 5th.
BTW, I have a 6MT and I dyno in 5th.