Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

Dynoing out the myth of intake mods

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Dec 13, 2010 | 11:06 AM
  #136  
DaveB's Avatar
Registered User
iTrader: (9)
Joined: Aug 2003
Posts: 6,573
Likes: 72
From: Kansas City
Originally Posted by boostedforlife
yea good point,

I think id like to see which intake is best after clearing the chock point, the manifold.
The stock intake box and intake tube have been put on a flow bench. The setup can move than air to support a much larger engine. The intake manifold really isn't that much of choking point seeing that at certain rpms it can achive 100%+ volumetric efficency. For a rather simple V6 motor, the intake manifold is pretty trick.
 
Reply
Old Dec 13, 2010 | 06:41 PM
  #137  
sexyrob's Avatar
Thread Starter
|
Registered User
iTrader: (27)
Joined: Jun 2008
Posts: 3,947
Likes: 136
From: Dallas, TX
didn't get anything done this weekend, drove down to san antonio for import faceoff with a bunch of the other texas G drivers.
 
Reply
Old Dec 13, 2010 | 07:14 PM
  #138  
KingCobra's Avatar
Registered User
iTrader: (4)
Joined: Apr 2008
Posts: 1,199
Likes: 7
From: Woodland Hills, CA (818)
I have a feeling there is either NO results to speak of, or the results are so deceiving that the OP is taking his time to share to build up anticipation

Either way I can guarantee no one here will see "Gained 10hp/15tq from xxx CAI"
 
Reply
Old Dec 14, 2010 | 05:36 PM
  #139  
boostedforlife's Avatar
Registered User
iTrader: (13)
Joined: Feb 2009
Posts: 1,283
Likes: 27
From: bay
Originally Posted by DaveB
The stock intake box and intake tube have been put on a flow bench. The setup can move than air to support a much larger engine. The intake manifold really isn't that much of choking point seeing that at certain rpms it can achive 100%+ volumetric efficency. For a rather simple V6 motor, the intake manifold is pretty trick.
z1 uses cosworth on their 320 whp engine, and those guys been in the game for a long time, so I trust there were some advantages on that over mrev2+ spacer.
 
Reply
Old Dec 14, 2010 | 05:49 PM
  #140  
CandlestickPark's Avatar
ill Sedan
Staff Alumni
iTrader: (87)
Joined: Jun 2007
Posts: 23,261
Likes: 2,688
From: Long Beach, SoCal
Premier Member

Originally Posted by boostedforlife
z1 uses cosworth on their 320 whp engine, and those guys been in the game for a long time, so I trust there were some advantages on that over mrev2+ spacer.
I guess it depends on your mods, maybe a fully built NA engine will have gains with the Cosworth. From what I understand the Cosworth loses hp on NA engines.

https://g35driver.com/forums/intake-...yne-setup.html
 
Reply
Old Dec 15, 2010 | 12:42 AM
  #141  
Algy's Avatar
Registered User
iTrader: (8)
Joined: Jun 2006
Posts: 1,281
Likes: 79
Comparing the cosworth was interesting but what about those kinetix ones???
 
Reply
Old Dec 15, 2010 | 12:44 AM
  #142  
DaveB's Avatar
Registered User
iTrader: (9)
Joined: Aug 2003
Posts: 6,573
Likes: 72
From: Kansas City
Originally Posted by boostedforlife
z1 uses cosworth on their 320 whp engine, and those guys been in the game for a long time, so I trust there were some advantages on that over mrev2+ spacer.
If I built a high rev, heavy breathing NA VQ, there's no doubt I too would go with the Cosworth unit. It is better than stock, but the engine has to be able to use it first. The thing is so damn sexy too. Hell, if I had a 6MT with cams, I'd have the Cosworth manifold.
 
Reply
Old Dec 15, 2010 | 01:27 AM
  #143  
boostedforlife's Avatar
Registered User
iTrader: (13)
Joined: Feb 2009
Posts: 1,283
Likes: 27
From: bay
http://my350z.com/forum/intake-exhau...motordyne.html


Take a look at that, Gabe lost power with that thing, and hes got a 4.15 liter monster.
I am personally thinking about going the ssv velocity, It has been proven to make power on fully bolted on cars, which makes me believe I can make power with that on my built set up.....

The only data missing is it was never tested against a mrev2/spacer.

http://my350z.com/forum/intake-exhau...-de-motor.html

That one looks like the kinetix but has some improvements over it, but there is nothing proven yet.



Here is a dyno that shows a car makes power with the ssv velocity
http://my350z.com/forum/tuning/47093...-velocity.html
 
Reply
Old Dec 16, 2010 | 03:15 PM
  #144  
sexyrob's Avatar
Thread Starter
|
Registered User
iTrader: (27)
Joined: Jun 2008
Posts: 3,947
Likes: 136
From: Dallas, TX
write up finished, click here for thread.
 
Reply
Old Dec 16, 2010 | 03:34 PM
  #145  
ConradoR's Avatar
Registered User
iTrader: (16)
Joined: May 2008
Posts: 2,232
Likes: 162
From: South Miami
Thank You Rob for taking the time to produce such an organized dyno comparison, this will be an asset to many members for years to come.

Regardless of whether crazy discoveries were made or not, (and the members who have looked into this issue were def. not expecting drastic results), we appreciate you going the distance.
 
Reply
Old Dec 18, 2010 | 06:05 PM
  #146  
RogerG35's Avatar
Registered User
iTrader: (1)
Joined: Aug 2010
Posts: 597
Likes: 0
Thanks for the write-up!
 
Reply
Old May 31, 2011 | 11:13 AM
  #147  
walshtj's Avatar
Registered User
iTrader: (12)
Joined: Feb 2010
Posts: 2,998
Likes: 38
From: Charlotte NC
Good thread.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HellaG35
Intake & Exhaust
2
Sep 8, 2015 10:02 PM
INVADER_6MT
Brakes & Suspension
0
Sep 3, 2015 01:47 AM



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


All times are GMT -4. The time now is 04:39 AM.