http://www.yourcobalt.com/forums Talk about Chevy Cobalt Engine Modifications here en Mon, 06 Sep 2010 23:29:28 GMT vBulletin 60 http://www.yourcobalt.com/forums/images/misc/rss.jpg http://www.yourcobalt.com/forums http://www.yourcobalt.com/forums/engine-mods/21990-im-question.html Mon, 06 Sep 2010 06:03:33 GMT if i bought this 2.4 IM for my 08 2.2 cobalt will my injein CAI still fit on the manifold or do i have to get another? Ecotec HO Intake Manifold... if i bought this 2.4 IM for my 08 2.2 cobalt will my injein CAI still fit on the manifold or do i have to get another?

Ecotec HO Intake Manifold Kit 2.2MMGF - Crate Engine Depot ]]> Engine Mods derherzog http://www.yourcobalt.com/forums/engine-mods/21990-im-question.html http://www.yourcobalt.com/forums/engine-mods/21977-magnaflow-exhaust.html Sun, 05 Sep 2010 16:30:20 GMT anyone have it and drive it year round? any rust issues? want it but dont wanna wait for spring anyone have it and drive it year round? any rust issues? want it but dont wanna wait for spring ]]> Engine Mods hazynighthawk http://www.yourcobalt.com/forums/engine-mods/21977-magnaflow-exhaust.html http://www.yourcobalt.com/forums/engine-mods/21971-so-i-got-offer-exhaust-system.html Sun, 05 Sep 2010 09:02:04 GMT DC sport exhaust for a 2006/2005 cobalt.had it on a 2.2 but it will fit on any model of the car. The exhaust has about 50k on it, but it is 304... DC sport exhaust for a 2006/2005 cobalt.had it on a 2.2 but it will fit on any model of the car. The exhaust has about 50k on it, but it is 304 stainless and is still in decent condition. Wants 200 for it.

Also offered me a XTC downpipe for the car for an additional 50.

So i want your advice, go or no go? ]]> Engine Mods KoVault LT http://www.yourcobalt.com/forums/engine-mods/21971-so-i-got-offer-exhaust-system.html http://www.yourcobalt.com/forums/engine-mods/21937-cai-recommendations.html Fri, 03 Sep 2010 14:39:56 GMT Now that I've had he Cobalt for a few months, it is apparent that the little 2.2L likes to run hot. In hot weather, there is a significant reduction in performance and mileage, especially with the A/C on. To remedy this, I'd like to consider adding a CAI. What product does everyone recommend?

Thanks ]]> Engine Mods racer114 http://www.yourcobalt.com/forums/engine-mods/21937-cai-recommendations.html http://www.yourcobalt.com/forums/engine-mods/21928-not-sure-if-misfire.html Thu, 02 Sep 2010 22:54:13 GMT Sometimes when I start my car it somewhat half turns over and the engine runs, but it runs roughly and things shake. The speedometer/tach/gas gauges... Sometimes when I start my car it somewhat half turns over and the engine runs, but it runs roughly and things shake. The speedometer/tach/gas gauges dont move and as soon as I turn the car back off and then turn it on, it will run fine...but the clock will be reset as though the battery has been disconnected/reconnected.

It does this far more often when I have my injen set as an SRI, but maybe thats a coincidence.

I am wondering if its the spark plugs im using. Im using the Bosch platinum IR fusion plugs and I know some people argue that theyre fine or superior, Ive seen other people argue against them...frankly im not knowledgeable enough to really go either way. They worked flawlessly for me up until I had installed my injen intake, but it seems to do it much less when set up as a CAI.

Any ideas?

---------- Post added at 03:54 PM ---------- Previous post was at 03:52 PM ----------

One thing I should also mention is that a CEL never pops up. ]]> Engine Mods GpB311 http://www.yourcobalt.com/forums/engine-mods/21928-not-sure-if-misfire.html http://www.yourcobalt.com/forums/engine-mods/21916-exhaust-system-questions.html Thu, 02 Sep 2010 16:49:39 GMT So first off, I know I'm a noob sorry :/ just getting into cars as this is my first one. I have a 2010 Chevy Cobalt coupe (not the ss) and I want to get a nice deep sound from my exhaust. After looking around on the internet I've found a few that I like such as the Flowmaster 40 series and just a cheapo N1 model, but how can I be sure they'll fit my stock piping?? I don't know the measurements. Also to put on one of those performance mufflers do I need to get a full cat system installed, or can I just go to a muffler shop and have them slap it on without modifying anything else? Thanks guy in advance I'm tryin to learn this stuff as I go. ]]> Engine Mods astrophotograph http://www.yourcobalt.com/forums/engine-mods/21916-exhaust-system-questions.html http://www.yourcobalt.com/forums/engine-mods/21911-thrush.html Thu, 02 Sep 2010 08:09:24 GMT I went to go get new exhaust for the Balt today and the guy said something about "thrush" mufflers. Are these any good? I mean will they sound good on a 2.2? I searched for clips on you tube but couldn't find much. Any input is appreciated! ]]> Engine Mods RandyO http://www.yourcobalt.com/forums/engine-mods/21911-thrush.html http://www.yourcobalt.com/forums/engine-mods/21893-turbo-supercharged-2-2-a.html Wed, 01 Sep 2010 17:15:38 GMT has anyone actually done this to a 2.2? i have a 2010 and was offered an 07 supercharger, and am looking for a turbo anyone done it? has anyone actually done this to a 2.2? i have a 2010 and was offered an 07 supercharger, and am looking for a turbo anyone done it? ]]> Engine Mods hazynighthawk http://www.yourcobalt.com/forums/engine-mods/21893-turbo-supercharged-2-2-a.html http://www.yourcobalt.com/forums/engine-mods/21884-ca-header-make-difference.html Wed, 01 Sep 2010 05:12:32 GMT i was looking at headers cuz i want little power. i have a 2005 2.2 manual cobalt base. non sai i think. would this help: Image:... i was looking at headers cuz i want little power. i have a 2005 2.2 manual cobalt base. non sai i think.

would this help:


i was thinkin this maybe but i dont want any codes and need to pass emissions still. would this pass and not throw any codes?
]]> Engine Mods cobaltalex http://www.yourcobalt.com/forums/engine-mods/21884-ca-header-make-difference.html http://www.yourcobalt.com/forums/engine-mods/21864-ttr-upper-engine-mounts.html Tue, 31 Aug 2010 17:12:32 GMT This is one the the next mods I was thinking of doing and I generally know what to expect as far as installation and how it somewhat changes the feel... This is one the the next mods I was thinking of doing and I generally know what to expect as far as installation and how it somewhat changes the feel of the car while driving(shakes slightly more, etc), but I dont know what the different options look like.

With my engine bay being mostly a combination of polished metal, red, and black I was thinking of going with base of polished metal, upper support red, and bushing black. As said above, Im just curious what their different colors look like and if any of you have them if youd mind posting a pic or linking me to one.

Oh and using the pic they provide, let me know if Im correct with labeling here:

Bu= bushing. US= upper support. B=Base. The green area is what I want to know if its part of the upper support and would be red then or if its part of the base and would therefore be polished



my engine bay presently. Have the injen as an SRI for the moment though.
]]> Engine Mods GpB311 http://www.yourcobalt.com/forums/engine-mods/21864-ttr-upper-engine-mounts.html http://www.yourcobalt.com/forums/engine-mods/21860-dc-sport-exhaust-problem.html Tue, 31 Aug 2010 15:54:29 GMT A few weeks ago I put it my DC Sport catback exhaust. After driving it for a week or so it was fine. Then the check engine light came on. I got the... A few weeks ago I put it my DC Sport catback exhaust. After driving it for a week or so it was fine. Then the check engine light came on. I got the codes read and it said that it was the catalytic converter. Anyone know what might be wrong with this? ]]> Engine Mods ATXCobalt http://www.yourcobalt.com/forums/engine-mods/21860-dc-sport-exhaust-problem.html http://www.yourcobalt.com/forums/engine-mods/21858-muffler-problem.html Tue, 31 Aug 2010 13:46:12 GMT So for my birthday i got a new exhaust put on my car..but the only promblem is the muffler hangs really low and it does line up with the spot in the... So for my birthday i got a new exhaust put on my car..but the only promblem is the muffler hangs really low and it does line up with the spot in the bumper for the tip



so does anyone know what i need to do to raise it and get it to line up with the hole? ]]> Engine Mods ShotToHell http://www.yourcobalt.com/forums/engine-mods/21858-muffler-problem.html http://www.yourcobalt.com/forums/engine-mods/21847-need-some-ideas.html Tue, 31 Aug 2010 01:39:54 GMT i have an 07 cobalt with the 2.2 i already have a cat back system on it and injen CAI....i was able to dyno my car about a month ago and it... i have an 07 cobalt with the 2.2 i already have a cat back system on it and injen CAI....i was able to dyno my car about a month ago and it surprisingly ran at 184 hp....im just looking for something highly recommended for some cheap power im trying to sell the car but i would like to see it at the 200hp mark before i let it go.... any ideas????? ]]> Engine Mods harbran53 http://www.yourcobalt.com/forums/engine-mods/21847-need-some-ideas.html http://www.yourcobalt.com/forums/engine-mods/21834-possibly-dumb-turbo-question.html Mon, 30 Aug 2010 03:42:27 GMT Will any turbo fit on any car? Will any turbo fit on any car? ]]> Engine Mods caocao http://www.yourcobalt.com/forums/engine-mods/21834-possibly-dumb-turbo-question.html http://www.yourcobalt.com/forums/engine-mods/21814-k-n-intake-filter.html Sun, 29 Aug 2010 05:06:29 GMT so my filter to my intake is FILTHY! i have had it on for a year and a half and havent cleaned it once. so i was wondering should i get the K&N recharge kit and clean it like that or would it be better to go and buy a new one? i took it off today to look at it and my hands were black instanly ]]> Engine Mods cobalt08ls http://www.yourcobalt.com/forums/engine-mods/21814-k-n-intake-filter.html http://www.yourcobalt.com/forums/engine-mods/21805-quiet-exhaust-systems.html Sat, 28 Aug 2010 17:08:38 GMT Ok. so i wanna new exhaust very very bad but my damn parents will not let me cause they are *****ing about it being to loud and me getting tickets. ... Ok. so i wanna new exhaust very very bad but my damn parents will not let me cause they are *****ing about it being to loud and me getting tickets. i want the performance end of it i could care less bout the sound.

are there any systems out there that are quiet but still will give me a performance plus???

thanks guys ]]> Engine Mods mortisi http://www.yourcobalt.com/forums/engine-mods/21805-quiet-exhaust-systems.html http://www.yourcobalt.com/forums/engine-mods/21798-unplugging-maf.html Sat, 28 Aug 2010 04:31:40 GMT Ok I know this is a dumb question but how do you unplug the MAF sensor? There's a white piece on top where I can unclip but it just loosens. I don't wanna yank the plug.

I've unplugged maf's in the last few Fords when cleaning the sensors but this one's tricky.

Reason: to someday install a GMPP intake. Otherwise I'd just already unclipped the airbox for checking the air filter. ]]> Engine Mods Cliff http://www.yourcobalt.com/forums/engine-mods/21798-unplugging-maf.html http://www.yourcobalt.com/forums/engine-mods/21797-camshaft-mod.html Sat, 28 Aug 2010 04:25:23 GMT what do you guys think about grinding/machining our stock cams to work like stage 1, 2, or 3 cams? what do you guys think about grinding/machining our stock cams to work like stage 1, 2, or 3 cams? ]]> Engine Mods JoZaY http://www.yourcobalt.com/forums/engine-mods/21797-camshaft-mod.html http://www.yourcobalt.com/forums/engine-mods/21787-build.html Fri, 27 Aug 2010 21:23:26 GMT Build comming soon. tvs? turbo? twincharged? Build comming soon. tvs? turbo? twincharged? ]]> Engine Mods ThinkRusty87 http://www.yourcobalt.com/forums/engine-mods/21787-build.html http://www.yourcobalt.com/forums/engine-mods/21746-zzp-header-dp.html Thu, 26 Aug 2010 03:01:08 GMT I recently purchased the GMPP Performance exhaust. I plan on getting a ZZP Header/DP combo to use with it but I'm unsure what DP I should order. Could someone help? ]]> Engine Mods Spikes111 http://www.yourcobalt.com/forums/engine-mods/21746-zzp-header-dp.html http://www.yourcobalt.com/forums/engine-mods/21742-lsj-l61.html Thu, 26 Aug 2010 00:37:56 GMT So, I went to day and updated my L61 Header and Downpipe to an LSJ. I've seen alot of posts about this being "a cheap upgrade mod". And it is. I got my Header and DP for $125, and with a little machining work to the studs, and all new Gaskets, I have $200 in a better exhaust.

There are some major differences between the L61 and LSJ Header.

DownPipe: Flange to Cat:
L61: 2-1/4"
LSJ: 2-3/4"

Downpipe: Cat to o2 Sensor:
L61: 1-7/8"
LSJ: 2-3/4"

Downpipe: After O2 Sensor:
L61: 2"
LSJ: 2-3/4"

Header to Downpipe Port opening
L61: 1.9" x 1.6" D shaped
LSJ: 2 1/4" Round

L61 Header:



LSJ Header:



Comparison:



LSJ to L61 Downpipe:



It sounds louder and lower exhaust note. This is hooked to a GMPP Cat back.

I will be dyno'ing the car Saturday, at which time I will be able to list whats gained, as my car was last ddyno'd in April, and this is the only performance mod since then. ]]> Engine Mods Foximus http://www.yourcobalt.com/forums/engine-mods/21742-lsj-l61.html http://www.yourcobalt.com/forums/engine-mods/21740-help-my-build-please.html Wed, 25 Aug 2010 22:47:59 GMT im going to be getting these parts. i read the fourm about all of it, but im still confused. i have a 06 ls sadan 2.2 tsudo cat back cobalt... im going to be getting these parts. i read the fourm about all of it, but im still confused. i have a 06 ls sadan 2.2

tsudo cat back
cobalt performance 4:1 header/downpipe

will the tsudo mount onto the downpipe?
i will be getting the cat back first. then the header and downpipe.

after the cat back and header is done i plan on getting a CAI. i was looking at the k&n but i think im going to go with fujita CAI.

i plan on getting new motor mounts soon also

After all of this i want to start getting into the fule. im not sure what TB i should get or fule injectors. i know you start getting into the computer and stuff. and thats somthing i know i will have problems with. i actually dont know where to start with all of that. chips and stuff.

please post replys with sugestions or comments. yes im a noob.

---------- Post added at 02:47 PM ---------- Previous post was at 02:29 PM ----------

what does coating a header do for performance/cooling or anything ]]> Engine Mods xppcxthekid http://www.yourcobalt.com/forums/engine-mods/21740-help-my-build-please.html http://www.yourcobalt.com/forums/engine-mods/21731-flowmaster.html Wed, 25 Aug 2010 14:52:47 GMT so ill be getting a cobalt in the next few days. I have a flo master super 44 muffler sitting in my room nevrr used. Anyone have one on thier cobalt?... so ill be getting a cobalt in the next few days. I have a flo master super 44 muffler sitting in my room nevrr used. Anyone have one on thier cobalt? Sound? Performence? Thanks guys! ]]> Engine Mods hazynighthawk http://www.yourcobalt.com/forums/engine-mods/21731-flowmaster.html http://www.yourcobalt.com/forums/engine-mods/21718-fusebox-cover.html Tue, 24 Aug 2010 17:58:49 GMT So now that I have my cover thanks to Foximus, I also wanted to get one of the stainless steel covers as well. The problem is ive only found them on... So now that I have my cover thanks to Foximus, I also wanted to get one of the stainless steel covers as well. The problem is ive only found them on mrzperformance and the shipping theyre offering, at least the reasonably affordable options, seem to require a longer wait than id prefer.

I googled around a little and didnt find much, do any of you know other sites that sell these same items? Im going to go through the vendor list here, but was curious if anyone knew of any off hand.

Just for reference, this is what im talking about:
Stainless Steel Fuse Box Cover - Chevy Bowtie - 2005-2006: by Parts - Engine Bay Covers and Caps - Fuse box Cover for Cobalt G5 05- - Car Performance Parts And Auto Accessories | MRZ Performance ]]> Engine Mods GpB311 http://www.yourcobalt.com/forums/engine-mods/21718-fusebox-cover.html http://www.yourcobalt.com/forums/engine-mods/21717-b-m-shift-plus.html Tue, 24 Aug 2010 15:56:47 GMT should i get it? i know a little bit about it but some people say even when it is turned off that it still feel that its on should i get it? i know a little bit about it but some people say even when it is turned off that it still feel that its on ]]> Engine Mods cobalt08ls http://www.yourcobalt.com/forums/engine-mods/21717-b-m-shift-plus.html http://www.yourcobalt.com/forums/engine-mods/21704-heatshield.html Tue, 24 Aug 2010 02:30:48 GMT so im looking to buy just a heatshield like the ones they use on the gmmp intake anyone know where i could buy one from? so im looking to buy just a heatshield like the ones they use on the gmmp intake anyone know where i could buy one from? ]]> Engine Mods night_throne http://www.yourcobalt.com/forums/engine-mods/21704-heatshield.html http://www.yourcobalt.com/forums/engine-mods/21698-hows-30-score.html Mon, 23 Aug 2010 22:00:55 GMT Image: http://i34.tinypic.com/2u7wvnm.jpg Craigslist FTW!! The guy I bought it from told me that his kid bought it for his Cobalt a few months...

Craigslist FTW!! The guy I bought it from told me that his kid bought it for his Cobalt a few months ago and then sold the car. He's gone to college now and the Dad wanted to make room in the garage so he had it on CL for $40. I didn't know that it was Injen until I got there and as soon as I saw the red box I knew it was mine! I'm not sure if he didn't know what he was selling or he just didn't care. Either way, it's mine now for the sweet, sweet price of $30!!


Commence the relentless bashing!!:nuts: ]]> Engine Mods Mephisto http://www.yourcobalt.com/forums/engine-mods/21698-hows-30-score.html http://www.yourcobalt.com/forums/engine-mods/21686-please-help-before-i-lose-daylight.html Sun, 22 Aug 2010 23:23:39 GMT so i wanna paint my valve cover! i got everything unbolted and disconected... but its hard to pull off! how do i go about prying it open?????... so i wanna paint my valve cover!

i got everything unbolted and disconected...

but its hard to pull off! how do i go about prying it open????? :blink: ]]> Engine Mods JoZaY http://www.yourcobalt.com/forums/engine-mods/21686-please-help-before-i-lose-daylight.html http://www.yourcobalt.com/forums/engine-mods/21666-header.html Sun, 22 Aug 2010 01:48:22 GMT I'm looking for a header for my car, its a 2.2L auto...I've bought one from Ebay and it didn't even come close to fitting properly and the company (X3 Racing) havn't been returning my emails and now I'm out almost $300 including labor for taking my old one off and having to put it back on. I asked the local performance shop where I live and he couldn't find one either, I even checked Summit Racing with no luck either. I have however found one by Pacesetter on another site, is this one legit? Will it actually fit my car? Thanks in advance \m/ ]]> Engine Mods Eyesore http://www.yourcobalt.com/forums/engine-mods/21666-header.html http://www.yourcobalt.com/forums/engine-mods/21665-exhaust-system-questions.html Sun, 22 Aug 2010 00:44:20 GMT Ok when i first got my cobalt i wasnt that much into tuning and wasnt to sure on whatto do so i took my car to a local muffler shop. They took some... Ok when i first got my cobalt i wasnt that much into tuning and wasnt to sure on whatto do so i took my car to a local muffler shop. They took some pipeing and welded it to the hole on my catalytic converter flange and ran the pipe to the end of my car and put a 3a racing muffler on it. The car sounds good but i'm thinking of changein it so i was wondering would i have to have a new flange installed on my catalytic converter if i wanted to get a bolt on exhaust system? ]]> Engine Mods 09silverbalt http://www.yourcobalt.com/forums/engine-mods/21665-exhaust-system-questions.html