Hi I have a 2003 Infiniti g35 with the Cobb Accessport and K and N drop in filter already installed on the car. I am thinking about installing the Ztube on it to get rid of the restrictive g35 tube. Only problem is Cobb says you must keep the stock intake system on car or it could cause detonation. I really don't think changing the tube would cause that considering the 350z comes stock with it and its the same motor. If anyone is fimliar with the Cobb setup and the Ztube send me some ideas. Thanks
That is exactly what im saying. Cobb says that you can not use an aftermarket intake with the maps that come downloaded on the accessport. Maybe if you got a pro tune with the accessport you can run with the aftermarket intake but I haven't looked into that.
I bet anything what Cobb means by aftermarket is something like an AEM CAI or even WAI. The Z tube is made if the same plastic material as our...G tube, the heat soak from the aluminum would most likely throw off the Cobb maps.
I bet anything what Cobb means by aftermarket is something like an AEM CAI or even WAI. The Z tube is made if the same plastic material as our...G tube, the heat soak from the aluminum would most likely throw off the Cobb maps.
I bet the issue would be any change in air flow might cause the map to go lean (or rich but lean is the bigger problem) even if only in a narrow portion of it
I bet the issue would be any change in air flow might cause the map to go lean (or rich but lean is the bigger problem) even if only in a narrow portion of it
that's makes a lot more sense.. I'm kinda high from all the painting i did today, then dehydrated from outdoor pressure washing, that's my excuse and I'm sticking to it.
go to Cobbs map download site for the G35 Maps...its map 2+....and it accomodates the intake, exhaust , and plenum spacers....Aka get a 5/16 and call it a day
__________________
2004 Coupe Auto
Tons' o stuff done....
Quote:
Originally Posted by JESUS
04GcoupeAt is by far the best member of this forum
I bet anything what Cobb means by aftermarket is something like an AEM CAI or even WAI. The Z tube is made if the same plastic material as our...G tube, the heat soak from the aluminum would most likely throw off the Cobb maps.
the reason cobb warns not to use the tune or A-port with an intake cuz the maps are designed around the airflow that aftermarket intakes cause or have a result....in other words ztube still may throw off the A-port since the stock intake has many silencers in it ....vs an intake which is a straight shot to engine....basically it will cause ur car to run lean or rich so its prbly best to abide by there warnings
__________________
2004 Coupe Auto
Tons' o stuff done....
Quote:
Originally Posted by JESUS
04GcoupeAt is by far the best member of this forum
Gilley do you have these mods on your car.If so I guess you havent had any problems with the accessport and the z tube.
No, I don't have the Cobb. I do have a Z tube.
Quote:
Originally Posted by 04GcoupeAT
the reason cobb warns not to use the tune or A-port with an intake cuz the maps are designed around the airflow that aftermarket intakes cause or have a result....in other words ztube still may throw off the A-port since the stock intake has many silencers in it ....vs an intake which is a straight shot to engine....basically it will cause ur car to run lean or rich so its prbly best to abide by there warnings
From what I have read, the Cobb is actually made for the 350Z but can be used with the G35, so the Z tube should work fine.
Call Cobb and get an answer for sure.
__________________
'03.5 Caribbean Blue 5at Sedan, '04 Laser Red 6mt Coupe, '06 Autumn Copper FX35
When you say +1 I guess you are talking about the Stage 1 map? Where does it say on the Cobb website that the z tube will work an won't make the car run lean?
The O2 sensor monitors the exhaust for rich or lean mix, and feeds the results to the ECU to correct the injector load. The O2 sensor fine tunes the MAP and the MAF input.
Unless the flow gets outside the limits of the injectors, the O2 sensor should keeps the car from running rich or lean. Regardless of the type of intake ...
When you say +1 I guess you are talking about the Stage 1 map? Where does it say on the Cobb website that the z tube will work an won't make the car run lean?
no there are is a stage 1 map for stock...3% HP gain, stage 2, and a stage 2+....google is ur friend i will look for it in a second tho
__________________
2004 Coupe Auto
Tons' o stuff done....
Quote:
Originally Posted by JESUS
04GcoupeAt is by far the best member of this forum
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
Cobb accessport and z tube
