The GM intake
Super Moderator
Joined: Jul 2007
Posts: 13,098
From: Boat Town USA MI
RE: The GM intake
Heat the intake air[sm=interesting.gif] Excellent, the smooth intake pipe and bend increases flow (I really wonder how much, but it has to go up), but does conductive and convection heat to the charge negate that flow increase???? Please e mail K&N and let them know you've been waiting too long for an ' 07 application. I did, maybe we can get the squeeky treatment?
Joined: Jul 2007
Posts: 28
From:
RE: The GM intake
ikao - Well, I just installed it a 500 miles, and only have 682 miles on it today. So, I can not tell you anything about MPG inprovement, but it seems to improve the performance. But, I installed both the GM Performance intake system and the Magnaflow Cat back system about the same time.
About the heat, remember the system pulls the air from the inside of the right fender behind the headlamp assy. Cover may be warn, but the under hood temp is high, and you are removing the big plastic box on top of the manifold, which has a lots of heat. So, the trade off is that the system pushes the cool air into the engine, that the plastic box.
Ok, if your looks to only improve you MPG, the intake system is not the way to go, because at over $350+ (Magnaflow $560+)it would take you a long time for pay back. I my case, just wanted the cool looking system when I open the hood, and like the twin outlets on the exhaust.
About the heat, remember the system pulls the air from the inside of the right fender behind the headlamp assy. Cover may be warn, but the under hood temp is high, and you are removing the big plastic box on top of the manifold, which has a lots of heat. So, the trade off is that the system pushes the cool air into the engine, that the plastic box.
Ok, if your looks to only improve you MPG, the intake system is not the way to go, because at over $350+ (Magnaflow $560+)it would take you a long time for pay back. I my case, just wanted the cool looking system when I open the hood, and like the twin outlets on the exhaust.
Member
Joined: Jul 2007
Posts: 44
From: Taxachusetts :/
RE: The GM intake
it wouldn't take me that long to get back the money, since I commute 100 miles a day 
;(
I do plan on changing the exhaust too, though. I'm still looking through all the threads in here to see which one I might want.
as for the intake, I was under the impression that the heat from the engine would conduct its way to the tube? was just wondering if that would heat it up to any extent. you're probably right, though; I may be better off just waiting for the K&N.
;(I do plan on changing the exhaust too, though. I'm still looking through all the threads in here to see which one I might want.
as for the intake, I was under the impression that the heat from the engine would conduct its way to the tube? was just wondering if that would heat it up to any extent. you're probably right, though; I may be better off just waiting for the K&N.
Joined: Jul 2007
Posts: 28
From:
RE: The GM intake
ORIGINAL: ikao
it wouldn't take me that long to get back the money, since I commute 100 miles a day ;(
I do plan on changing the exhaust too, though. I'm still looking through all the threads in here to see which one I might want.
as for the intake, I was under the impression that the heat from the engine would conduct its way to the tube? was just wondering if that would heat it up to any extent. you're probably right, though; I may be better off just waiting for the K&N.
it wouldn't take me that long to get back the money, since I commute 100 miles a day
;(I do plan on changing the exhaust too, though. I'm still looking through all the threads in here to see which one I might want.
as for the intake, I was under the impression that the heat from the engine would conduct its way to the tube? was just wondering if that would heat it up to any extent. you're probably right, though; I may be better off just waiting for the K&N.
[IMG]local://upfiles/2759/A1E3CF0F814841E88F0302AB146713DB.jpg[/IMG]
Member
Joined: Jul 2007
Posts: 44
From: Taxachusetts :/
RE: The GM intake
that's an interesting thing I hadn't thought about, actually. I was thinking about the aluminum conducting more heat from the engine, sending more heat towards the intake. now that you mention that, the AL does wick away from heat from the engine, but also lets air passing under the hood make it act as somewhat of a heatsink; whereas a plastic tube would let the all the heat sit in the engine, wouldn't it? I guess it all works out.
edit: maybe I will buy the GM intake. it's only $3.5, after all.
edit: maybe I will buy the GM intake. it's only $3.5, after all.
Member
Joined: Jul 2007
Posts: 44
From: Taxachusetts :/
RE: The GM intake
well, I decided to go for it. bought the gm intake, touring exhaust, and a pcm tune. never installed an intake or exhaust before (and pretty sure I don't have the proper tools either), so I may have the dealer install those things while I watch how it's done.
Joined: Jul 2007
Posts: 7
RE: The GM intake
ikao, please keep us posted on your install. I am looking at the GM intake and either the GM performance exhaust or the touring exhaust. I would love to get your feedback on performance, sound and gas milage once you're done. Also, where did you get your pcm tune?
Thanks in advance.
Thanks in advance.
Member
Joined: Jul 2007
Posts: 44
From: Taxachusetts :/
RE: The GM intake
lynch hummer (from whom I ordered) told me the only difference is the sound. the touring is quieter than the performance. since I'm just looking for performance increase without too much sound, the touring exhaust seems to be more what I want.
hafnutz67, I will definitely post an update when I get them installed
. also, I got the pcm tune from pcmforless.com. kelly was very helpful and patient with answering all my questions. they're running a special right now; their prices are great, imo.
hafnutz67, I will definitely post an update when I get them installed
. also, I got the pcm tune from pcmforless.com. kelly was very helpful and patient with answering all my questions. they're running a special right now; their prices are great, imo.