Engine, Drivetrain & Forced-Induction
Have Technical Questions or Done Modifications to the G37? Find out the answer in here!

Cobb test mule

Thread Tools
 
Search this Thread
 
Old 10-14-2008, 03:10 PM
  #106  
SurgeLineTuning
Registered User
 
SurgeLineTuning's Avatar
 
Join Date: Oct 2008
Location: Portland Oregon
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by herrjr
That may be so Tim, but here in CA I drive my car in the summer and spring too. And it can be triple digits on some days, so, driving on the road I fully expect to see heat-soak become an issue, and do not overly concern myself with what dyno results show. The point I was trying to make is that the stock intakes are also tested under DRIVING conditions, whereas aftermarket intakes are tested under DYNO conditions. And regardless of how wonderful dyno conditions are, my car is used for driving on roads.

I appreciate your testing very much and the results that you've discovered so far; I can't wait to get an AP for my G. I loved it for my STI when I had it.
I totally get it. I guess we are speaking about two totally important but very different issues.

Dyno testing and the results can be influenced by conditions with less than optimal air flow. Coolant temps and air intake temperature offsets can hugely impact power output and CAN scew results for comparisons. The goal on the dyno is to create consistent conditions when making comparisons.

Your issue is completely relavent and important: Calibrations must be able to perform under conditions where ambient temperatures are very high. This is something i can account for on the dyno by simply using less of my available air flow and this sort of "heat soak" testing is part of creating an optimized and safe calibration.
Old 10-14-2008, 07:21 PM
  #107  
bboysteele
Premier Member

 
bboysteele's Avatar
 
Join Date: Jul 2007
Location: Colorado Springs, CO
Posts: 3,346
Likes: 0
Received 3 Likes on 3 Posts
Originally Posted by herrjr
You bring up a key issue here: heat-soak. This was a problem that I noticed with my own Injen testing. I didn't bother with attempting to compensate for this issue, because I wanted to see how much it would affect performance, since heat-soaking will inevitably occur during the course of normal driving. And since you saw this on your JWT dynos as well, then it appears obvious that although this or the Injen will make power initially, that over time heat-soak issues will overcome any gains and will result in overall power loss. I am not at all surprised that the stock intake (thus far) continues to out-perform under ALL conditions. I expect, in time, that we'll see one that will truly show power increases under all conditions. However, it remains to be seen as of yet.
The heat soak I am talking about is the heat soak for the engine after it has been ran for awhile especially when ran hard. There is little to no heat soak from my intakes as I can touch them without burning myself.
Old 10-14-2008, 07:22 PM
  #108  
tfmbigdog99
Registered User
 
tfmbigdog99's Avatar
 
Join Date: May 2008
Location: Where the kids are high and the grades are low. NYC
Posts: 663
Likes: 0
Received 0 Likes on 0 Posts
Alright so enough with the bickering. Is the accessport on its way or no..?
Old 10-14-2008, 07:28 PM
  #109  
bboysteele
Premier Member

 
bboysteele's Avatar
 
Join Date: Jul 2007
Location: Colorado Springs, CO
Posts: 3,346
Likes: 0
Received 3 Likes on 3 Posts
Originally Posted by tfmbigdog99
Alright so enough with the bickering. Is the accessport on its way or no..?
NOPE!!! Not for a good while.
Old 10-14-2008, 08:07 PM
  #110  
herrjr
Registered User
iTrader: (1)
 
herrjr's Avatar
 
Join Date: Mar 2008
Location: Suburbia, CA
Posts: 171
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by SurgeLineTuning
I totally get it.
Agreed. I just had to reply since I found it shocking that your test results were questioned in such a manner, as to suggest that somehow your own results were flawed, while that tester's test results were beyond dispute.

Originally Posted by bboysteele
The heat soak I am talking about is the heat soak for the engine after it has been ran for awhile especially when ran hard. There is little to no heat soak from my intakes as I can touch them without burning myself.
That sounds like a situation that would be covered under my prior statement: "since heat-soaking will inevitably occur during the course of normal driving." Thus, we're both talking about heat-soak occurring in the same way.

And, I must say that I'm rather amazed, that your intake doesn't get hot enough to unsafely touch. After using both the Injens and JWT, I found both intakes' pipes would inevitably get too hot to touch. Perhaps CO air is magical or something.
Old 10-14-2008, 08:12 PM
  #111  
NeverBoneStock
Premier Member

Thread Starter
iTrader: (25)
 
NeverBoneStock's Avatar
 
Join Date: May 2008
Location: Vancouver, WA
Posts: 3,179
Received 69 Likes on 56 Posts
Originally Posted by herrjr
Agreed. I just had to reply since I found it shocking that your test results were questioned in such a manner, as to suggest that somehow your own results were flawed, while that tester's test results were beyond dispute.



That sounds like a situation that would be covered under my prior statement: "since heat-soaking will inevitably occur during the course of normal driving." Thus, we're both talking about heat-soak occurring in the same way.

And, I must say that I'm rather amazed, that your intake doesn't get hot enough to unsafely touch. After using both the Injens and JWT, I found both intakes' pipes would inevitably get too hot to touch. Perhaps CO air is magical or something.
Im in oregon and my JWT always are to hot to touch .. Same with any other intake that was not plastic..
Old 10-14-2008, 10:33 PM
  #112  
bboysteele
Premier Member

 
bboysteele's Avatar
 
Join Date: Jul 2007
Location: Colorado Springs, CO
Posts: 3,346
Likes: 0
Received 3 Likes on 3 Posts
Originally Posted by herrjr
Agreed. I just had to reply since I found it shocking that your test results were questioned in such a manner, as to suggest that somehow your own results were flawed, while that tester's test results were beyond dispute.



That sounds like a situation that would be covered under my prior statement: "since heat-soaking will inevitably occur during the course of normal driving." Thus, we're both talking about heat-soak occurring in the same way.

And, I must say that I'm rather amazed, that your intake doesn't get hot enough to unsafely touch. After using both the Injens and JWT, I found both intakes' pipes would inevitably get too hot to touch. Perhaps CO air is magical or something.
It does as long as you are talking about the engine. If you are just talking about the intake then no. The statement you made seem just to point to the intake. Heat soak affects the car after a while which takes away power no matter what intake you have on it. Now if you have an intake this is prone to heat soak then it will loss more power.
Old 11-01-2008, 02:35 AM
  #113  
wcirksena
Registered User
 
wcirksena's Avatar
 
Join Date: Feb 2005
Location: Honolulu
Posts: 87
Likes: 0
Received 0 Likes on 0 Posts
Any news on the accessport release date?
Old 11-01-2008, 12:38 PM
  #114  
rossab
Registered User
iTrader: (6)
 
rossab's Avatar
 
Join Date: Jul 2008
Location: Cincy, OH
Posts: 274
Likes: 0
Received 0 Likes on 0 Posts
We should put together a pool on this. $2 to enter and the winner gets the pot. Closest to the actual release date wins. Ties will result in a split pot.

I'm taking hmmmmm.........

February 6th, 2009
Old 11-01-2008, 08:18 PM
  #115  
NeverBoneStock
Premier Member

Thread Starter
iTrader: (25)
 
NeverBoneStock's Avatar
 
Join Date: May 2008
Location: Vancouver, WA
Posts: 3,179
Received 69 Likes on 56 Posts
Jan. 12/2009
Old 11-01-2008, 10:22 PM
  #116  
KahnQuistador
Registered User
 
KahnQuistador's Avatar
 
Join Date: Dec 2007
Posts: 181
Likes: 0
Received 0 Likes on 0 Posts
June 6, 2010
Old 11-04-2008, 04:12 PM
  #117  
willizm
Registered User
 
willizm's Avatar
 
Join Date: Feb 2008
Posts: 714
Likes: 0
Received 0 Likes on 0 Posts
The following was posted over at forums.cobbtuning.com yesturday by JoeGR
----------------------------------------------------------------
G37 AccessPORT is in Beta testing and almost ready to go :-)

Today we have been doing the final run through on the AccessPORT software and we are just waiting for all the maps.


Joe
Old 11-04-2008, 05:15 PM
  #118  
SurgeLineTuning
Registered User
 
SurgeLineTuning's Avatar
 
Join Date: Oct 2008
Location: Portland Oregon
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by willizm
The following was posted over at forums.cobbtuning.com yesturday by JoeGR
----------------------------------------------------------------
G37 AccessPORT is in Beta testing and almost ready to go :-)

Today we have been doing the final run through on the AccessPORT software and we are just waiting for all the maps.


Joe
An AccessPORT will be a great EARLY Christmas present.
Old 11-04-2008, 05:27 PM
  #119  
NJlakeshoreG
Registered Member
iTrader: (1)
 
NJlakeshoreG's Avatar
 
Join Date: Jul 2005
Location: giants stadium
Posts: 2,772
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by SurgeLineTuning
An AccessPORT will be a great EARLY Christmas present.
hell yea!!! lol
Old 11-04-2008, 06:09 PM
  #120  
willizm
Registered User
 
willizm's Avatar
 
Join Date: Feb 2008
Posts: 714
Likes: 0
Received 0 Likes on 0 Posts
I'm not sure If I'm excited about it now. I don't know if the predelivered maps are going to work well on modified cars. Haven't really seen a definitive answer. I really want a tuning solution, but I'm in the Midwest so Tedeshi isn't accessable.


Quick Reply: Cobb test mule



All times are GMT -4. The time now is 08:28 AM.