G35 Sedan V36 2007- 08 Discussion about the 2nd Generation G35 Sedan 2007 - 08

Invidia Q300/Gemini - Painted, pics and dyno

Thread Tools
 
Search this Thread
 
Rate Thread
 
  #1  
Old 02-17-2011, 04:46 PM
soundmike's Avatar
Registered User
Thread Starter
iTrader: (9)
Join Date: Jul 2008
Location: Inside my G
Posts: 4,093
Received 213 Likes on 156 Posts
Invidia Q300/Gemini - Painted, pics and dyno

Not sure if this is Media Share or Tech/Exhaust, so mods kindly move to where you think it belongs. Thanks

As some of you know, i painted the cans on the Invidia. What do you guys think?









And oh, got a dyno right after it was installed, too -- blue was with just the Injen SRI from a few months back, red with both SRI and Invidia. The dyno tripped at 6.5k with the SRI-only run and explains why that dyno run shut off at that rpm. Make of the results what you want.



17.58 on average, one of the runs showed a 20whp gain.
10.29 lb./ft.

Video of the three runs post-CBE, along with a quick sound clip off the dyno.

On the dyno, i don't have the AFR sheet, but it was within safe levels. However, i can see how a tune would really benefit the set-up.

Initial impressions:
  • From 50 through 80mph there is absolutely no drone. If there is, it's no louder than tire/wind noise. I did a before/after audio capture, but you can't even hear the difference on the file, so i won't even bother posting it.
  • From a stop, partial throttle, you do hear the exhaust. Nothing bad, however. It's audible but not obnoxious
  • From 40 to 50 there is a very slight "sound". I wouldn't call it drone, but you do hear it when on the gas. Let off and cruise along, it goes away.
  • At WOT, honestly, i think the Injen's are much louder
  • There was a slight issue with centering the cans, it was addressed by bending one of the hangers and using washers
  • *edit* fixed the rattle issue, the heatshield above the resonators was very close, i bent it up slightly and voila! fixed.
 

Last edited by soundmike; 02-19-2011 at 09:58 AM.
The following 2 users liked this post by soundmike:
blnewt (06-20-2013), vqsmile (06-20-2013)
  #2  
Old 02-17-2011, 05:11 PM
kazyn's Avatar
Registered User
Join Date: Feb 2011
Posts: 42
Likes: 0
Received 0 Likes on 0 Posts
I would imagine it would be the heat shields clanking against something else maybe. How much did you pay for your dyno runs, if you don't mind me asking.
 
  #3  
Old 02-17-2011, 05:31 PM
Phalanx's Avatar
Registered User
Join Date: Jun 2008
Posts: 437
Received 12 Likes on 12 Posts
Wait a minute. A cat-back alone gives you 20whp? :O
 
  #4  
Old 02-17-2011, 05:37 PM
E-Ticket Ride's Avatar
Registered User
Join Date: Sep 2008
Posts: 2,568
Likes: 0
Received 55 Likes on 49 Posts
Injen + Invidia gave the 20 gain.

Mike, is that a diffuser or did you PD it? (don't recall).
 
  #5  
Old 02-17-2011, 06:55 PM
soundmike's Avatar
Registered User
Thread Starter
iTrader: (9)
Join Date: Jul 2008
Location: Inside my G
Posts: 4,093
Received 213 Likes on 156 Posts
^ It's Bluebat's overlays

kazyn, three runs with A/F set me back $75.
 
  #6  
Old 02-17-2011, 06:55 PM
2007BlueSlate's Avatar
Registered User
iTrader: (2)
Join Date: Mar 2009
Location: Bay Area, CA
Posts: 166
Received 1 Like on 1 Post
Liking the painted look, blends in perfectly with your diffuser. Might have to do this with my ARK exhaust when I get around to installing it.
 
  #7  
Old 02-17-2011, 07:10 PM
preston8o8's Avatar
Registered User
iTrader: (1)
Join Date: Jul 2010
Location: Sacramento Ca
Posts: 746
Received 8 Likes on 8 Posts
looks good
 
  #8  
Old 02-17-2011, 08:35 PM
PursuitofG's Avatar
Registered User
iTrader: (1)
Join Date: Apr 2007
Location: Atlanta
Posts: 127
Received 2 Likes on 1 Post
nice..picking up the Q300 next month.

what you did with the oem exhaust?
 
  #9  
Old 02-17-2011, 08:41 PM
GeezNuts's Avatar
Registered User
iTrader: (15)
Join Date: Dec 2007
Location: Rep'n Ohio in Houston,TX
Posts: 2,163
Received 29 Likes on 25 Posts
Looks great Mike - i really like the painted mufflers!! Exhaust is super shiny - good luck keeping it that way You'll have to get the kiddos under there witha sponge!

And that is a pretty nice gain in HP as well!! Awesome!!

- ever considered blacking out or body color painting the chrome part on the trunk?
 
  #10  
Old 02-17-2011, 09:11 PM
GSoccer24's Avatar
Registered User
Join Date: Jun 2005
Location: Framingham, Massachusetts
Posts: 190
Received 1 Like on 1 Post
That's a great idea. I don't like when you can see the shiny aftermarket mufflers all blinged out under the car from behind. I like your wheels and diffuser a lot too, very tastefully done.
 
  #11  
Old 02-17-2011, 10:21 PM
kool_yaar's Avatar
Registered User
iTrader: (7)
Join Date: Oct 2007
Location: Somewhere
Posts: 5,208
Received 184 Likes on 159 Posts
Looks great as always mike! The spoiler, painted mufflers, drop, rims... everything flows gracefully. Very tasteful indeed.
 
  #12  
Old 02-17-2011, 10:23 PM
kool_yaar's Avatar
Registered User
iTrader: (7)
Join Date: Oct 2007
Location: Somewhere
Posts: 5,208
Received 184 Likes on 159 Posts
Originally Posted by Phalanx
Wait a minute. A cat-back alone gives you 20whp? :O
Looks like it, as he said the blue line is with the injen SRI and red with both intake and exhaust, so he basically gained ~15-18whp with just the exhaust on top of the intake. Cant see the exactly peak difference due to the early cut off of the SRI dyno but i reckon thats some good gains throughout.
 
  #13  
Old 02-17-2011, 11:49 PM
bat6wc's Avatar
Registered User
iTrader: (15)
Join Date: Aug 2008
Location: St. Louis, MO
Posts: 2,190
Received 29 Likes on 28 Posts
im liking the painted mufflers!
 
  #14  
Old 02-18-2011, 12:04 AM
pbabajan's Avatar
Registered User
Join Date: Jan 2011
Location: San Fernando, CA (so. cal.)
Posts: 748
Received 36 Likes on 34 Posts
i like it a lot! u have made me finalize my decision to do it to my stillen when i get it!
 
  #15  
Old 02-18-2011, 12:19 AM
J2S2M's Avatar
Registered User
iTrader: (32)
Join Date: Mar 2008
Location: Irvine, CA
Posts: 2,891
Received 61 Likes on 49 Posts
Keepin it ol skool, Mike. I like it man! It will keep the popos away a lil more too I guess.
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Invidia Q300/Gemini - Painted, pics and dyno



All times are GMT -4. The time now is 05:58 PM.