IS F (2008-2014) Discussion topics related to the IS F model

Borla catback dyno numbers. Gained 28WHP and 24WTQ!

Thread Tools
 
Search this Thread
 
Old 10-15-14 | 11:14 AM
  #1  
RSXiMUS's Avatar
RSXiMUS
Thread Starter
Lead Lap
iTrader: (7)
 
Joined: Feb 2014
Posts: 755
Likes: 11
From: CA
Default Borla catback dyno numbers. Gained 28WHP and 24WTQ!

Here are the final results...same place, same dyno. Only thing changed is the Borla, no other mods.

BEFORE, baseline run
Peak WHP baseline: 348.92
Peak WTQ baseline: 335.73

AFTER Borla catback

Peak WHP Borla: 377.72
Peak WTQ Borla: 359.98

Peak gains of: 28.8WHP and 24.25WTQ

I knew this system would give substantial gains because of my butt dyno felt power everywhere after the exhaust.
What's really impressive is the power gains between 5500-6200. Since the Borla system eliminates the stock dip in power at around 5700rpms, it gained a whopping 44.4WHP there.

My car is very consistent on this DynoJet, it put down back to back 348 WHP baselines, and the 3 runs after the catback read 376,376 and 377.



I'll get a better graph up once I go home and scan the original sheet, I just took a pic from my phone since I had to go to work right after. To say that I'm impressed with this exhaust would be an understatement, for under $1000 it's amazing value for the power.
Old 10-15-14 | 11:42 AM
  #2  
jadu's Avatar
jadu
live.love.laugh.lexus
iTrader: (42)
 
Joined: Oct 2008
Posts: 11,581
Likes: 89
From: CALI
Default

Awesome gains on that catback!
Old 10-15-14 | 11:42 AM
  #3  
MGordo's Avatar
MGordo
Driver
 
Joined: Aug 2014
Posts: 102
Likes: 0
From: Alberta
Default

Impressive gains! Add to that the weight that lose from the stock exhaust and thats a big difference.
Old 10-15-14 | 11:42 AM
  #4  
streetx's Avatar
streetx
Lexus Test Driver
iTrader: (4)
 
Joined: Jun 2011
Posts: 981
Likes: 4
From: MA
Default

nice gains

what was temp and humidity for both base run and the run with borla?
Old 10-15-14 | 11:49 AM
  #5  
cremaster's Avatar
cremaster
Lead Lap
iTrader: (1)
 
Joined: Sep 2011
Posts: 735
Likes: 70
From: ca
Default

wow, nice! glad i went w/ the cheapest option to begin w/ haha
Old 10-15-14 | 11:55 AM
  #6  
juanmedina's Avatar
juanmedina
Lead Lap
 
Joined: Aug 2014
Posts: 417
Likes: 1
From: sc
Default

Do you reset the ECU after installing the borla exhaust? Is that really your AFR after installing the exhaust? Is kind of lean...

Awesome gains, I can't wait to get mine.
Old 10-15-14 | 12:43 PM
  #7  
RSXiMUS's Avatar
RSXiMUS
Thread Starter
Lead Lap
iTrader: (7)
 
Joined: Feb 2014
Posts: 755
Likes: 11
From: CA
Default

Originally Posted by juanmedina
Do you reset the ECU after installing the borla exhaust? Is that really your AFR after installing the exhaust? Is kind of lean...

Awesome gains, I can't wait to get mine.
I did not reset the ECU.

If you're comparing the baseline and Borla, I didn't get the AF during the baseline run because the probe they had didn't fit into the factory exhaust. AF was only taken on the Borla runs.

Also it looks like the AF on the Borla runs were pretty much prefect, mid 12s across the board which is on the richer side.

In practice you want to keep it between 12 and 13 to keep the exhaust gas temps down on N/A cars.

Remember 14.7:1 is Stoichiometric, higher is leaner and lower is richer.
Old 10-15-14 | 12:58 PM
  #8  
RSXiMUS's Avatar
RSXiMUS
Thread Starter
Lead Lap
iTrader: (7)
 
Joined: Feb 2014
Posts: 755
Likes: 11
From: CA
Default

Originally Posted by streetx
nice gains

what was temp and humidity for both base run and the run with borla?
Will double check when I get home, it felt more humid today for the Borla run.
Old 10-15-14 | 01:08 PM
  #9  
calteg's Avatar
calteg
Pit Crew
 
Joined: Oct 2003
Posts: 184
Likes: 31
From: Texas
Default

Thanks for actually dyno'ing your results...this forum is long on talk and short on numbers sometimes
Old 10-15-14 | 02:47 PM
  #10  
juanmedina's Avatar
juanmedina
Lead Lap
 
Joined: Aug 2014
Posts: 417
Likes: 1
From: sc
Default

Originally Posted by RSXiMUS
I did not reset the ECU.

If you're comparing the baseline and Borla, I didn't get the AF during the baseline run because the probe they had didn't fit into the factory exhaust. AF was only taken on the Borla runs.

Also it looks like the AF on the Borla runs were pretty much prefect, mid 12s across the board which is on the richer side.

In practice you want to keep it between 12 and 13 to keep the exhaust gas temps down on N/A cars.

Remember 14.7:1 is Stoichiometric, higher is leaner and lower is richer.
I understand....... When I used to have my 600whp subaru we considered 12s on the lean side at WOT. Low 12s were kind of safe for E85 but on 93oct you would have detonation and probably melt a piston. 11.5-11.8s is money for turbo subarus and GTRs; 10s were considered to be really rich....

I have to learn a lot about the IS-F and NA cars...

Last edited by juanmedina; 10-15-14 at 02:51 PM.
Old 10-15-14 | 02:51 PM
  #11  
RSXiMUS's Avatar
RSXiMUS
Thread Starter
Lead Lap
iTrader: (7)
 
Joined: Feb 2014
Posts: 755
Likes: 11
From: CA
Default

Originally Posted by juanmedina
I understand....... When I used to have my 600whp subaru we considered 12s on the lean side at WOT. 12s were safe for E85 but on 93oct you would probably have detonation. High 11s were perfect to get the most power and 10s were considered to be really rich....

I have to learn a lot about the IS-F and NA cars...
Yes turbocharged cars are totally different, mid 12s AF is good for N/A cars to be in...but can be dangerous in a high powered turbocharged car.
Old 10-15-14 | 03:27 PM
  #12  
scamsel's Avatar
scamsel
Advanced
 
Joined: Jul 2007
Posts: 608
Likes: 14
From: atl
Default

awesome awesome gains for just an exhaust, i would think you could mid 12's all day now! i wonder.
Old 10-15-14 | 04:18 PM
  #13  
ForzaF's Avatar
ForzaF
Pole Position
iTrader: (3)
 
Joined: Apr 2014
Posts: 350
Likes: 12
From: London,ONT
Default

Yes you can do mid 12's as long as you get slicks and turn off all the driver aids
Old 10-15-14 | 10:17 PM
  #14  
ImportISF's Avatar
ImportISF
Lead Lap
iTrader: (9)
 
Joined: Sep 2011
Posts: 493
Likes: 4
From: CA
Default

Very nice! Now, I assume you want headers too?
Old 10-15-14 | 10:20 PM
  #15  
ToothDoc's Avatar
ToothDoc
11 Second Club
 
Joined: Apr 2006
Posts: 963
Likes: 2
From: IL
Default

Borla is good for 2/10th at the 1/4



All times are GMT -7. The time now is 03:47 AM.