hey guys, just have a quick question, does anyone know if a 2.4 intake manifold from a cobalt would fit on a 2003 2.2 cavalier?
Thanks to all!!
AT
Yes crate engine depot sells the kit.
Tinkles
2003 Cavalier 1SV
Bagged and Blown
do u know if it is a direct fit or is there some modification required?
if I'm not mistaken, it does require very little modification. I might be wrong, but I'm looking into this as well to help give me some more air for the turbo set up.
here is the link to the High Output manifold, it seems like its a 2.2 IM but its High Output and something better then the stock one you have now, also its for the 05-07 delta bodies, but I'm positive its very very simliar to our 03-05 j-bodies.
null
Thats the 2.4 manifold.
For a turbo setup i would use a "log" type intake manifold. Like this:
http://www.vulcanturbo.com/intakemanifolds.html
Edited 1 time(s). Last edited Tuesday, April 21, 2009 8:25 PM
Tinkles
2003 Cavalier 1SV
Bagged and Blown
Nice! Hey Tinkles, is that street legal though? I want to get a E-check eventually lol
thanks guys! i'm getting mine in two days, ill put it on and let u know how it fits and if there is any modification required.
Alex T wrote:thanks guys! i'm getting mine in two days, ill put it on and let u know how it fits and if there is any modification required.
you need to drill a hole in the throttle body adapter for the IAC valve to breathe through. It isn't there for the cobalts because they have electronic throttles.
this has been beaten to death, search for ecotec manifold and it brings up plenty of requests, with pictures.
You need to make a TB adaptor plate...although some people don't, and risk having the gasket blow or bulge out the sides...this plate is not the easiest thing to make if you don't have the tools or know-how...AND this mod requires ECU tuning, it's not a simple bolt on part unless you have a L61 Cobalt which has different tuning and the different air sensor. No tuning and you risk detonating your engine, someone on here had that happen... bye bye engine. Especially at WOT... also if you don't tune you won't get maximum gains from this mod.... you SHOULD also run greentop cobalt 33lb injectors, as this mod is enough to near max out the stock injectors....again, you need ecu tuning to run the bigger injectors, and raising revlimitor to 7000rpm takes advantage of the extra power the manifold makes (makes power through 6500rpm)...I got a kit, sitting on it as I might be piecing together a LSJ SC kit.
Don't buy from MANTAPART!!
You also need a few things, clamps, hose, duel ended barb, etc... the adaptor plate is most important so I would buy the kit unless you find a manifold for cheap,,,search google, there is tons of how-to's for this mod...with tuning you are looking at a dyno proven 15-20hp gain! worth doing for sure and the manifold is what gives the 2.4L engine most of it's power over a 2.2.
Don't buy from MANTAPART!!
FastFireTwoTwo wrote:You need to make a TB adaptor plate...although some people don't, and risk having the gasket blow or bulge out the sides...this plate is not the easiest thing to make if you don't have the tools or know-how...AND this mod requires ECU tuning, it's not a simple bolt on part unless you have a L61 Cobalt which has different tuning and the different air sensor. No tuning and you risk detonating your engine, someone on here had that happen... bye bye engine. Especially at WOT... also if you don't tune you won't get maximum gains from this mod.... you SHOULD also run greentop cobalt 33lb injectors, as this mod is enough to near max out the stock injectors....again, you need ecu tuning to run the bigger injectors, and raising revlimitor to 7000rpm takes advantage of the extra power the manifold makes (makes power through 6500rpm)...I got a kit, sitting on it as I might be piecing together a LSJ SC kit.
Who blew their engine? I doubt this was strictly from running the 2.4 mani without tuning; there must have been other factors involved like continuous abuse.
Tuning is needed on the Jbody eco with this mani because without it you will not be taking advantage of the increased flow. It's not dangerous to run this mani untuned per say, just not productive.
Everything else i agree on; if you're going to run this mani and tune - get larger injectors and rev to 7k...
LMFAO, YOU are the one that told me that someone blew their engine with the 2.4L intake untuned, I still have your PM's in my inbox back when I was asking you some questions about the 2.4 intake...if that's not true, then I'm bolting on this sucker TODAY.
Don't buy from MANTAPART!!
Dom stop being so lazy and put that manifold on!!
QUIET! You IMPERTENT FOOL! If you weren't a Jbody God, I would smite thee!
Besides, no point putting it on if I go charged.
Don't buy from MANTAPART!!
FastFireTwoTwo wrote:LMFAO, YOU are the one that told me that someone blew their engine with the 2.4L intake untuned, I still have your PM's in my inbox back when I was asking you some questions about the 2.4 intake...if that's not true, then I'm bolting on this sucker TODAY.
Hmmm i don't remember saying someone did blow their engine. I may have said, if you tune for a lower AFR you'll need injectors or you risk clipping, and possibly blowing it. I dunno...
I cracked a ringland when I didn't tune with that manifold. I tuned hastily (and not correctly) and leaned out at the track and the #3 piston ringland broke off and smashed the gap on my spark plug. Still had good compression after I fixed the plug, but I knew what had happened (right after the bash '07).
jbody ecu doesn't compensate for flow changes. Stock ecu will probably get away with it for a while, but ultimately you need to upgrade the injectors and tune the car for a proper AFR with that manifold or you'll pay a pretty nasty price.
FastFireTwoTwo, the Crate Engine Depot kit is complete. All you gotta do is shell out the cash for that and you're pretty much done. Only extra step for the jbody guys is to drill a hole for the IAC to breathe through (and make sure you have upgraded injectors and tuning software -aka- HPT)
Yeah I was just referring to those that can grab the manifold only.
Don't buy from MANTAPART!!
There is no easy ways to get HP, no magic box or gizmo... And if you get more hp, there's no way to make your car still behave and sound like a stock one. More hp usually makes your car louder, more vibrations and harder to drive...but still people hope or think maby there's some magic way to have it all, comfort, stock sound and drive.
got a link for this place? i want to do what i can with out boosting the car.
ShowOff Customz
03 Cavalier
73 Beetle
68 Fairlane 500
JokerAKA Showoff03LS wrote:got a link for this place? i want to do what i can with out boosting the car.
cobalt 2.4 manifold swap
____________________________________________________________________________
my carDomain updated 3/13/09 Forged by B-day!
cool
ShowOff Customz
03 Cavalier
73 Beetle
68 Fairlane 500
Now when using this manifold I found out reving to a 7k redline was good to do. But I didnt think the stock cams would make much power over 6k, and is there any other damage thats possible from doing this? It would be tuned with bigger injectors also but I just thought that the cams wouldnt make any power over 6k. Im still learning.
Jason Brantner wrote:Now when using this manifold I found out reving to a 7k redline was good to do. But I didnt think the stock cams would make much power over 6k, and is there any other damage thats possible from doing this? It would be tuned with bigger injectors also but I just thought that the cams wouldnt make any power over 6k. Im still learning.
not really. the problem is the manifold will probably reach an optimum RPM range at a different time than the cams.. just feel it out. I've had a stock L61 up to 7100 before. Just don't bounce it off the limiter for long periods of time up there or something stupid like that.
if you want to really get the car to move in upper rpm, upgrade the valvesprings and the cams at the least. if you get the head ported in tandem with 0.5mm+ oversized valves the car will move out with some serious authority.
tuning is the most important factor at this point. The jbody ecu cannot compensate for load/flow changes, it uses an alpha-n fueling scheme. You have to tune the car with HPTuners in order to make it run ok with the LE5 manifold (as well as the larger injectors). If anything, the tuning software should be first on the list.
the only other way around it is to get a megasquirt system to control your fueling. If you do that, you'll have full control over it.. a little less user friendly though, but a lot cheaper.
im running a saab kit and im using lsj injectors and a cartech adjustable fmu for fuel would this be sufficient tuning for the manifold? i know the vulcan manifold is gonna need more tuning to make it work right so i dont wanna go that route
