Notices
Intake Exhaust Moving all that air in and out efficiently

2005 Infiniti G35 Auto Dyno with K&N Air Filter

Thread Tools
 
Search this Thread
 
Old 04-05-2007, 10:42 AM
  #1  
prostreetonline
Registered User
Thread Starter
 
prostreetonline's Avatar
 
Join Date: Jul 2003
Location: Hayward, CA
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default 2005 Infiniti G35 Auto Dyno with K&N Air Filter

Customer bought a K&N Air Filter for his car, asked us to install it, and dyno his car before and after. Before the air filter was a stock piece.

The car is a 2005 Infiniti G35 with an automatic transmission.

We strap the car down.



We baseline the car. Note, there is no tuning done. The car is dyno'd as it came off the street.



With the stock air filter, the car dyno'd 226.80rwhp and 212.56 ft/lb of torque.

Next, we installed he K&N 33-2031 air filter into the G35. Install took 2 minutes.





With the K&N Filter Installed, the G35 put down 228.65rwhp and 209.84 ft/lb of torque.



The car has about 42,000 miles on it.
Old 04-05-2007, 02:38 PM
  #2  
Wired 24/7
Dr. Wired
iTrader: (2)
 
Wired 24/7's Avatar
 
Join Date: May 2005
Location: San Mateo, CA
Posts: 17,582
Likes: 0
Received 9 Likes on 7 Posts
Default

Less than 1% difference, but at least it doesn't HURT performance.

thanks for the pics and dynos, which I'm sure everyone appreciates
Old 04-05-2007, 02:41 PM
  #3  
bwassul
Registered User
 
bwassul's Avatar
 
Join Date: May 2006
Location: Los Angeles
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
Default

Good info. Thanks. I don't feel bad about having one now.
Old 04-06-2007, 12:15 PM
  #5  
Wired 24/7
Dr. Wired
iTrader: (2)
 
Wired 24/7's Avatar
 
Join Date: May 2005
Location: San Mateo, CA
Posts: 17,582
Likes: 0
Received 9 Likes on 7 Posts
Default

Originally Posted by MC
good info

i would like to see a dyno of the NISMO drop in sports filter. the box shows a dyno curve above stock but it doens give numbers. i assume its similar to these results even though its not oiled like the K&N. the nismo claims 30% more airflow
maybe 30% more (max) but not 30% more (actual)
Old 04-06-2007, 03:35 PM
  #7  
joe645733
Registered User
iTrader: (3)
 
joe645733's Avatar
 
Join Date: Oct 2006
Location: IL
Posts: 1,348
Likes: 0
Received 0 Likes on 0 Posts
Default

nice, u wasted ur money on that and lost tq.
and had no gain. veddy nize...
Old 04-07-2007, 05:30 AM
  #8  
WalkerT
Professional
iTrader: (13)
 
WalkerT's Avatar
 
Join Date: Jun 2005
Location: Flower Mound, TX
Posts: 1,625
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by joe645733
nice, u wasted ur money on that and lost tq.
and had no gain. veddy nize...


now at least he can clean his filter I do not see that as a waste
Old 04-07-2007, 06:51 AM
  #9  
halfass872
Registered User
iTrader: (35)
 
halfass872's Avatar
 
Join Date: Sep 2006
Location: Virginia Beach, VA.
Posts: 2,741
Likes: 0
Received 0 Likes on 0 Posts
Default

I wonder if a manual Z looses that much torque. This post kinda makes me want to replace my K&N back with my stock filter. I'd rather loose th one HP i gain with the K&N, instead of loosing torque.
Old 04-07-2007, 12:12 PM
  #10  
kzshin
Registered User
 
kzshin's Avatar
 
Join Date: Apr 2003
Location: OC, CA.
Posts: 954
Likes: 0
Received 0 Likes on 0 Posts
Default

nice, u wasted ur money on that and lost tq.
+1
Old 04-07-2007, 05:11 PM
  #11  
tranceformer95
New Member
iTrader: (20)
 
tranceformer95's Avatar
 
Join Date: Oct 2005
Location: Palm Beach, FL
Posts: 5,399
Received 0 Likes on 0 Posts
Default

Hmmm, this is actually pretty disappointing for me. I was hoping my drop-in K&N would give a little bit more than that.

side note: I'm thinking the change could also be due variations in conditions.
Old 04-08-2007, 02:26 AM
  #12  
halfass872
Registered User
iTrader: (35)
 
halfass872's Avatar
 
Join Date: Sep 2006
Location: Virginia Beach, VA.
Posts: 2,741
Likes: 0
Received 0 Likes on 0 Posts
Default

Once again i will revert back to stock, where i should of stayed and saved my money to begin with.
Old 04-08-2007, 06:48 AM
  #13  
WalkerT
Professional
iTrader: (13)
 
WalkerT's Avatar
 
Join Date: Jun 2005
Location: Flower Mound, TX
Posts: 1,625
Likes: 0
Received 0 Likes on 0 Posts
Default

Anyone notice that the second dyno has smoothing factor of 0 and the first is 5. It does make a difference.
Old 04-08-2007, 03:46 PM
  #14  
halfass872
Registered User
iTrader: (35)
 
halfass872's Avatar
 
Join Date: Sep 2006
Location: Virginia Beach, VA.
Posts: 2,741
Likes: 0
Received 0 Likes on 0 Posts
Default

Can someone make sense of this please? I don't understand why a filter that flows better would cause a drop in torque.
Old 04-08-2007, 04:40 PM
  #15  
NmexMAX
Registered User
iTrader: (3)
 
NmexMAX's Avatar
 
Join Date: Apr 2005
Location: Nm
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default

Do you have the runfiles?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Gruppe-S
Body Interior
13
05-16-2016 10:42 PM
_bit
New Owners
5
10-02-2015 07:49 AM



Quick Reply: 2005 Infiniti G35 Auto Dyno with K&N Air Filter



All times are GMT -8. The time now is 03:13 PM.