JoeZ Exhaust + Intake Dyno = +26 RWHP +19 RWTQ SAE
01-31-09, 08:53 AM
#17
Lexus Champion
01-31-09, 09:11 AM
#18
Lexus Connoisseur
Nice results. Love the HD video. 
02-02-09, 10:34 PM
#20
Tech Info Resource
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Let's stay on topic - Joe Z exhaust dyno vs. baseline. OT posts have been deleted.
02-10-09, 07:13 AM
#23
Lexus Champion
02-10-09, 11:07 AM
#24
Lexus Champion
02-10-09, 11:36 AM
#25
Driver
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I ordered the exhaust last night and can't wait to get it! Thanks so much for the dyno info. Now, if I can get the quad tips out within the next week and powdercoated to match my wheels/emblems I'll be set and have the car totally de-chromed
02-14-09, 02:00 PM
#27
See update here: https://www.clublexus.com/forums/is-...ml#post4271223
So... Today I went to the dyno shop for a run with my intake track completed (JoeZ intake, Amsoil EA air filter and charcoal filter delete)...
As always, runs were done at the same shop on the same dyno, both in 6th gear, with all accessories turned off (no A/C, no Audio, no Lights, iPod and radar detector unplugged) and running Octane 91 gas.
I usually wait 30 to 45 minutes for the car to cool down before making the runs, so traditionally the 1st run is the good one, and the 2nd one show a slight drop in horse power and bump in torque (Baseline run1=348.93/336.07 run2=346.57/338.68 - Exhaust run1=368.90/345.83 run2=354.90/349.00). This time I went in right away, no cooling down time, and interestingly both runs were very, very close in term of power and torque, (E+I run1=370.48/353.16 run2=370.72/351.41) not experiencing the usual 2nd run difference. So I assume that the engine was heat soaked from the start and didn't respond as well as usual on the 1st run.
Click of high resolution
The max HP gains are limited around +2HP, but the max torque gain is much more interesting with +7ft.lbs.
We also can see significant HP gains past 6000rpm and significant torque gain between 4500rpm to 6000rpm.
A/F ratio:
As you can see it seen to be running a bit rich...
I am not very happy with theses results to be honest, I will re scheduled a run on Monday and take the time to get the car to cool down as this can lead to a massive 10ish HP difference!
Here are the conditions:
IS-F Baseline Run01.dfr: 63.09F, 30.06 in-Hg, Humidity: 38%
IS-F JoeZ Exhaust Run05.drf: 81.13F, 30.01 in-Hg, Humidity: 9%
IS-F JoeZ Exhaust+Intake Run07.drf: 60.61F, 30.13 in-Hg, Humidity: 46%
And just for kicks, here are the Uncorrected Results:
IS-F Baseline Run01.dfr: 363.05/349.67
IS-F JoeZ Exhaust Run05.drf: 377.33/353.73
IS-F JoeZ Exhaust+Intake Run07.drf: 387.24/369.15
So... Today I went to the dyno shop for a run with my intake track completed (JoeZ intake, Amsoil EA air filter and charcoal filter delete)...
As always, runs were done at the same shop on the same dyno, both in 6th gear, with all accessories turned off (no A/C, no Audio, no Lights, iPod and radar detector unplugged) and running Octane 91 gas.
I usually wait 30 to 45 minutes for the car to cool down before making the runs, so traditionally the 1st run is the good one, and the 2nd one show a slight drop in horse power and bump in torque (Baseline run1=348.93/336.07 run2=346.57/338.68 - Exhaust run1=368.90/345.83 run2=354.90/349.00). This time I went in right away, no cooling down time, and interestingly both runs were very, very close in term of power and torque, (E+I run1=370.48/353.16 run2=370.72/351.41) not experiencing the usual 2nd run difference. So I assume that the engine was heat soaked from the start and didn't respond as well as usual on the 1st run.
Click of high resolution
The max HP gains are limited around +2HP, but the max torque gain is much more interesting with +7ft.lbs.
We also can see significant HP gains past 6000rpm and significant torque gain between 4500rpm to 6000rpm.
A/F ratio:
I am not very happy with theses results to be honest, I will re scheduled a run on Monday and take the time to get the car to cool down as this can lead to a massive 10ish HP difference!
Here are the conditions:
IS-F Baseline Run01.dfr: 63.09F, 30.06 in-Hg, Humidity: 38%
IS-F JoeZ Exhaust Run05.drf: 81.13F, 30.01 in-Hg, Humidity: 9%
IS-F JoeZ Exhaust+Intake Run07.drf: 60.61F, 30.13 in-Hg, Humidity: 46%
And just for kicks, here are the Uncorrected Results:
IS-F Baseline Run01.dfr: 363.05/349.67
IS-F JoeZ Exhaust Run05.drf: 377.33/353.73
IS-F JoeZ Exhaust+Intake Run07.drf: 387.24/369.15
Last edited by timeToy; 02-19-09 at 07:41 PM.
02-14-09, 02:41 PM
#28
Lexus Champion
Timetoy thanks for the Dynorun, only a 2whp gain I was kinda expecting better numbers. But the torque numbers are kinda impressive. Hopefully you will post better numbers on your next session. Keep us tuned.
02-14-09, 05:15 PM
#29
Lexus Champion
Interesting results timeToy. Humidity was a little high during the last run as well, perhaps that had an effect on the engine and results. I'll bookmark this thread so I can catch your next run 
