A different approach to modding your cobalt
I would say that's what pm's are for but you've already figured that out! lol
I honestly believe that our cars can be just as ***** to the wall fast as high turboed cars. We are starting to get the resources now and I am glad I didn't jump on the bandwagon like some people on the site.
I honestly believe that our cars can be just as ***** to the wall fast as high turboed cars. We are starting to get the resources now and I am glad I didn't jump on the bandwagon like some people on the site.
I get newbs pm'ing me ALL THE TIME. But you gotta help them out, that's why they're newbs, they don't know much about these cars and they are trying to find out.
yea, but I didn't go around pm'ing everyone. lol, I just read all the threads available to read. Interesting enough, I found tons of info on the redlineforums, but I found most of it to be terribly wrong.
you just answered why some people like myself like to ask questions. You're in the military just like me, so you know how bad problems can be when it comes to hearsay. I was patient and tried to weed out those who I could tell understood what they are talking about. I read the forums also but information is just that: information, what you read isn't going to have a marker that says "truth" or "I think this is right". Most will say that what they post is right, even if they get it from someone else that is most likely wrong themselves. You can tell the difference between someone who is hungry to learn, and someone who is lazy and wants everyone else to do all of the work.
Ok, here's a good question. The molecules of air moving through the supercharger are heated up and forced together. As it makes it's way to the intake manifold where the laminovas help to cool the air, does the molecular velocity slow because of less energy, and create denser air? I guess I want to make more sense of the previous discussion.
hey, I honestly couldn't explain it. But now that I've been schooled, It makes perfect sense.
That I don't know. Maybe Joe from kincaid could help us. He is the one offering the killerchiller.
Ok, here's a good question. The molecules of air moving through the supercharger are heated up and forced together. As it makes it's way to the intake manifold where the laminovas help to cool the air, does the molecular velocity slow because of less energy, and create denser air? I guess I want to make more sense of the previous discussion.
Last edited by ralliartist; Jul 11, 2008 at 05:38 PM. Reason: Automerged Doublepost
Ok, here's a good question. The molecules of air moving through the supercharger are heated up and forced together. As it makes it's way to the intake manifold where the laminovas help to cool the air, does the molecular velocity slow because of less energy, and create denser air? I guess I want to make more sense of the previous discussion.
As a side bar, the sooner in the process you begin cooling the air, the more it will increase your mass (but not volume) flow. He who flows the highest mass of air with the most efficiency will make the most power.
UPDATE:
Okay, I'm scraping the idea of 12's on stock pulley, yea I think I can do it, but I got bigger and better things to accomplish than proving a bunch of people wrong. I'm also holding off on the direct injection meth for a little while as I just won't have the money to attempt it. The killer chiller was the big secret but it is still in the works. Soooooo.....
I'm adding a 2.9 pulley, pacesetter header, custom downpipe to the 2.5" cutout, and a lot of port work and extra cooling mods.
First up, Pacesetter header porting: believe it or not, lots of people have modified a pacesetter header and out flowed a lot of other header on the market. It has a few design flaws that can be easily fixed. Best think about it, you can pick one up for cheap! I got mine for 40 bucks!!!! Not bad for a budget builder. So what you do is, you cut off that shitty ball flange and you can have the exhaust shop just weld on a new one. You also use a dremel to grind the welds out that are inside the collector. In doing so, the flow is increased quite a bit. As for my downpipe, it'll be a custom mandrel bent 2.5" catless down to the cutout. after the cutout will be stock exhaust. I like to maintain a quiet car when I'm not at the drag strip.
Second, Intake manifold porting/cooling: Lots of stuff here. There has been a huge development of a lot of people starting to do this, and with everyone assuming that the intake manifold is the biggest restriction, it's a good idea to go ahead and try it. Supposedly big gains can be had. So, I intend to cut it open, port the slots out to 15mm, and gasket match the runners to the intake manifold gasket on the head. I also intend to convert my manifold to a single pass design, it's already been done and I'll show you a sneak peek just to prove it. But I'm not showing more than that.
Sneak Peek

Third, Head porting: not really doing a whole bunch here, but there can be a lot to be gained from only a little. Basically just gasket matching both the intake and exhaust sides. The bigger gains will be shown on the exhaust side as those ports are tiny, but I'm sure the intake side will see gains too as there are 2-3mm of metal that can be shaved off.
4th, more cooling: Hatrickstu wasn't the first to come up with his mod, but it's a really good idea and I'll just name it after him. So the Hatrickstu mod will be performed. It really is just a variation of the option B. But you don't use the tank as an overflow, you actually let the coolant flow through it, and in doing so, you can use it like an ICE box. This will help big time on track days. You can ICE down your IAT's and actually pick up a few hp. Cobra guys have been doing this for years with good results and even showing 10-20whp gains on the dyno.
Last but not least, Tuning: By far the most important thing. Area 47 will be tuning me. Should see some decent gains just from getting bry to do the tune. Probably up the meth mix to 75-25, but we'll see.
So, with all that done, what do I expect for my gains to be??? Honestly I don't know. But I would expect at a minimum of a 50whp gain. I'm trying to be realistic, but I know there is a lot to be gained from the specific mods that I'm doing. I dynoed 222whp before all this, so I'm expecting at least 272whp after. Anything more than that and I'll be excited. With my slicks, I should finally have enough power to turn them over (I've clearly been underpowered for 10.5" slicks) and I'm expecting mid 12's @ 106-108mph.
Now for the good questions for all the budget guys that have been following this thread.
How much money am I spending on the new mods? No more than 500 bucks.
How much money will I have invested then in cooling and performance mods? 1000 dollars
How much money for the slicks set up? 400 dollars
How much money total? $1400
Car should be plenty reliable, I did take some short cuts, with the DIY mounts and the cheap pacesetter header, and the cutout, but I did all this with my wallet in mind. I also did all the porting and stuff myself, only going to pay a machinest to do the welding on the manifold, and make the downpipe.
When I get back from this deployment, I'll be sure to post up dyno graphs and track times next month, October.
Okay, I'm scraping the idea of 12's on stock pulley, yea I think I can do it, but I got bigger and better things to accomplish than proving a bunch of people wrong. I'm also holding off on the direct injection meth for a little while as I just won't have the money to attempt it. The killer chiller was the big secret but it is still in the works. Soooooo.....
I'm adding a 2.9 pulley, pacesetter header, custom downpipe to the 2.5" cutout, and a lot of port work and extra cooling mods.
First up, Pacesetter header porting: believe it or not, lots of people have modified a pacesetter header and out flowed a lot of other header on the market. It has a few design flaws that can be easily fixed. Best think about it, you can pick one up for cheap! I got mine for 40 bucks!!!! Not bad for a budget builder. So what you do is, you cut off that shitty ball flange and you can have the exhaust shop just weld on a new one. You also use a dremel to grind the welds out that are inside the collector. In doing so, the flow is increased quite a bit. As for my downpipe, it'll be a custom mandrel bent 2.5" catless down to the cutout. after the cutout will be stock exhaust. I like to maintain a quiet car when I'm not at the drag strip.
Second, Intake manifold porting/cooling: Lots of stuff here. There has been a huge development of a lot of people starting to do this, and with everyone assuming that the intake manifold is the biggest restriction, it's a good idea to go ahead and try it. Supposedly big gains can be had. So, I intend to cut it open, port the slots out to 15mm, and gasket match the runners to the intake manifold gasket on the head. I also intend to convert my manifold to a single pass design, it's already been done and I'll show you a sneak peek just to prove it. But I'm not showing more than that.
Sneak Peek

Third, Head porting: not really doing a whole bunch here, but there can be a lot to be gained from only a little. Basically just gasket matching both the intake and exhaust sides. The bigger gains will be shown on the exhaust side as those ports are tiny, but I'm sure the intake side will see gains too as there are 2-3mm of metal that can be shaved off.
4th, more cooling: Hatrickstu wasn't the first to come up with his mod, but it's a really good idea and I'll just name it after him. So the Hatrickstu mod will be performed. It really is just a variation of the option B. But you don't use the tank as an overflow, you actually let the coolant flow through it, and in doing so, you can use it like an ICE box. This will help big time on track days. You can ICE down your IAT's and actually pick up a few hp. Cobra guys have been doing this for years with good results and even showing 10-20whp gains on the dyno.
Last but not least, Tuning: By far the most important thing. Area 47 will be tuning me. Should see some decent gains just from getting bry to do the tune. Probably up the meth mix to 75-25, but we'll see.
So, with all that done, what do I expect for my gains to be??? Honestly I don't know. But I would expect at a minimum of a 50whp gain. I'm trying to be realistic, but I know there is a lot to be gained from the specific mods that I'm doing. I dynoed 222whp before all this, so I'm expecting at least 272whp after. Anything more than that and I'll be excited. With my slicks, I should finally have enough power to turn them over (I've clearly been underpowered for 10.5" slicks) and I'm expecting mid 12's @ 106-108mph.
Now for the good questions for all the budget guys that have been following this thread.
How much money am I spending on the new mods? No more than 500 bucks.
How much money will I have invested then in cooling and performance mods? 1000 dollars
How much money for the slicks set up? 400 dollars
How much money total? $1400
Car should be plenty reliable, I did take some short cuts, with the DIY mounts and the cheap pacesetter header, and the cutout, but I did all this with my wallet in mind. I also did all the porting and stuff myself, only going to pay a machinest to do the welding on the manifold, and make the downpipe.
When I get back from this deployment, I'll be sure to post up dyno graphs and track times next month, October.
well, I've asked a lot of people for advice and what not, and some people gave me BIG estimates, while others were really LOW estimates. So I took a happy medium. I KNOW what that gain should be, and it should definitely be OVER 50whp. But if I only gained 50, I would be fine with that.
108 mph is around 300 whp at full weight. So, if you hit that then you will have your 300 on the stock blower.
I'd like to see how the head porting does for you. I plan on doing headwork this winter, it should be even more pronounce with the turbo.
I'd like to see how the head porting does for you. I plan on doing headwork this winter, it should be even more pronounce with the turbo.
i still find it so funny that ralliartist the lowest whp in the dyno thread and is #45 yet jam's out some nasty times in the 1/4 with not that much power. ether this is a nasty idea to build up a car then start to slowly give it more whp. or ralliartist you are a sick nasty driver. i venture to say probably both.
good luck with your future goals. i for sure see you dishing out some 12's in your future. :thumbsup:
good luck with your future goals. i for sure see you dishing out some 12's in your future. :thumbsup:


