High flow intake manifold***picking off where rebel stopped**
Yes! Your not the only person to have tested one and not all m62's are installed on ecotecs... Air to air on m62 powered K20's is very common...
I personally want a water to air and it's my belief, after years of experience with the lsj and k20's using the the m62 that an air to air just isn't the best option.
An air to air can be made to work and work some what well with the m62 and even the tvs, but what happens when a much smaller pulley on the tvs or a large twin screw is used? "Some" people will need more and air to water becomes a better choice.
Example: I enjoy drag racing much more than autocross. As such I need my car to be able to drag race effectively. When I had an air to air on an M62 powered K20 the temps would stay low throughout the run but when I pull into the pits and wait for the next run, the temps will rise rapidly!!! Heat soak will happen!!! On my mostly stock LSJ M62 air to water setup with pump and fan bypass wiring, I can run the pump and fans while i'm waiting and maintain a much lower iat2 temperature and my lsj has a 2.8 pulley while the old k20 had a 3.1...
I also think an air to water will be easier to sell to the lsj community as most have spent between 400 and 800 on cooling mods already....
All that would be needed for an air to water "kit" for the average litely modded Lsj would
be the manifold with IC core attached... No Front Mount, no piping, no bs.
I personally want a water to air and it's my belief, after years of experience with the lsj and k20's using the the m62 that an air to air just isn't the best option.
An air to air can be made to work and work some what well with the m62 and even the tvs, but what happens when a much smaller pulley on the tvs or a large twin screw is used? "Some" people will need more and air to water becomes a better choice.
Example: I enjoy drag racing much more than autocross. As such I need my car to be able to drag race effectively. When I had an air to air on an M62 powered K20 the temps would stay low throughout the run but when I pull into the pits and wait for the next run, the temps will rise rapidly!!! Heat soak will happen!!! On my mostly stock LSJ M62 air to water setup with pump and fan bypass wiring, I can run the pump and fans while i'm waiting and maintain a much lower iat2 temperature and my lsj has a 2.8 pulley while the old k20 had a 3.1...
I also think an air to water will be easier to sell to the lsj community as most have spent between 400 and 800 on cooling mods already....
All that would be needed for an air to water "kit" for the average litely modded Lsj would
be the manifold with IC core attached... No Front Mount, no piping, no bs.
Manifold is done, here it is, has thermal coating on it, the last pic is dirty lol, everyone was man handlin the manifold with their dirty as hands :p working on charge piping right, due to there being a oil filter right under the manifold, the hto charge air has to go to the side instead of down like intended...working on other things for this car next...as i see everyone is mad about the water/air being dropped, i apologize...but had we continued with it, the cost would of been way out of what anyone would be willing to pay, despite w/e gains it may provide...one thing is true to cobalt owners...we're cheap...we want good part for cheap prices, and i honestly believe a single pass intake manifold would be the best route, unless we can get a damn IC core small enough to fit in the tiny bit of room thats available






Thats looks like a very quality piece! Congrats!
A couple questions tho,
What size piping is being used to feed the front mount? It looks like 2.5 inch?
Will you have an option to purchase without the thermal coating?
Any idea on very rough price for the kit? ballpark?
Can someone just buy what you have pictured above and not the front mount or piping and supply there own setup?
Thanks!
Yes! Your not the only person to have tested one and not all m62's are installed on ecotecs... Air to air on m62 powered K20's is very common...
I personally want a water to air and it's my belief, after years of experience with the lsj and k20's using the the m62 that an air to air just isn't the best option.
An air to air can be made to work and work some what well with the m62 and even the tvs, but what happens when a much smaller pulley on the tvs or a large twin screw is used? "Some" people will need more and air to water becomes a better choice.
Example: I enjoy drag racing much more than autocross. As such I need my car to be able to drag race effectively. When I had an air to air on an M62 powered K20 the temps would stay low throughout the run but when I pull into the pits and wait for the next run, the temps will rise rapidly!!! Heat soak will happen!!! On my mostly stock LSJ M62 air to water setup with pump and fan bypass wiring, I can run the pump and fans while i'm waiting and maintain a much lower iat2 temperature and my lsj has a 2.8 pulley while the old k20 had a 3.1...
I also think an air to water will be easier to sell to the lsj community as most have spent between 400 and 800 on cooling mods already....
All that would be needed for an air to water "kit" for the average litely modded Lsj would
be the manifold with IC core attached... No Front Mount, no piping, no bs.
I personally want a water to air and it's my belief, after years of experience with the lsj and k20's using the the m62 that an air to air just isn't the best option.
An air to air can be made to work and work some what well with the m62 and even the tvs, but what happens when a much smaller pulley on the tvs or a large twin screw is used? "Some" people will need more and air to water becomes a better choice.
Example: I enjoy drag racing much more than autocross. As such I need my car to be able to drag race effectively. When I had an air to air on an M62 powered K20 the temps would stay low throughout the run but when I pull into the pits and wait for the next run, the temps will rise rapidly!!! Heat soak will happen!!! On my mostly stock LSJ M62 air to water setup with pump and fan bypass wiring, I can run the pump and fans while i'm waiting and maintain a much lower iat2 temperature and my lsj has a 2.8 pulley while the old k20 had a 3.1...
I also think an air to water will be easier to sell to the lsj community as most have spent between 400 and 800 on cooling mods already....
All that would be needed for an air to water "kit" for the average litely modded Lsj would
be the manifold with IC core attached... No Front Mount, no piping, no bs.
i know where your comming from and i see how that makes sense and i can respect your opinion. but dont say something wont work when its been proven to work
Thats looks like a very quality piece! Congrats!
A couple questions tho,
What size piping is being used to feed the front mount? It looks like 2.5 inch?
Will you have an option to purchase without the thermal coating?
Any idea on very rough price for the kit? ballpark?
Can someone just buy what you have pictured above and not the front mount or piping and supply there own setup?
Thanks!
ps this is not the ecotec manifold...this is the LD9 one, while air/air could be done for the eco crowd, the eco one has not begun yet...although from what we ran into on the ld9 one, i can say we wont be using a garret water/air core like we had hoped for...
from what i have seen in the ld9 crowd our only compettion at the momment is OEM, who is trying to make a water/air set up

although i have tried to help them by telling them tube alone wont do it, and they dont have nearly enough to help cool down charge temps, and adding fins would help transfer heat, idk if they took my advice or not, i even made the suggestion to go dual pass or single on it
Last edited by Jn2; Sep 3, 2009 at 07:11 PM. Reason: Automerged Doublepost
we'll know how this set up does once wade gets his car back...its got forged internals, so its ready for boost, currently on a 2.9" pulley so we will see what his IAT2's looks like vs those of a cobalts, yes diffrent engine but IAT'2s are measure before it reaches the engine...so it doesnt make much of a diffrence...
i have thought about using a water/air set up using a barrel style IC like this one:
http://www.frozenboost.com/product_i...377bc40c0e8a93
there is a lot of possiblilites when it comes to cooling
http://www.frozenboost.com/product_i...377bc40c0e8a93
there is a lot of possiblilites when it comes to cooling
all i was saying is that it works, i know im not the only one to have done it. i know diff cars do diff things but you said in your original post it wont work on a car with a 2.6 or 2.7 and we have put them on cars with those pulleys and had results similar to the one on my tvs... thats all i was saying.
i know where your comming from and i see how that makes sense and i can respect your opinion. but dont say something wont work when its been proven to work
i know where your comming from and i see how that makes sense and i can respect your opinion. but dont say something wont work when its been proven to work
The whole deal with both the SC 4cyls I have been involved with has been frustrating.
The K20 M62 with air to air was a nice setup but we pushed it's limits and at the end of the day, it couldn't be relied on at the drag strip. It created way to much heat and was only on a 3.1 pulley and a high compression 4cyl.
Now with the LSJ I'm seeing the same issues. A lower compression and water to air has helped greatly and allowed a 2.8/2.7 inch pulley but even then with plans for much more than an m62 I doubt the setup will be able to handle it.
I'm still looking for an effective aftermarket air to water setup that will be flexible enough to handle any SC I want to throw at it but maybe it's time to rethink the lsj with an SC or try an air to air again...
I'm curious, what size piping is being used to feed the front mount?
Any idea when your air to air LSJ (Ecotec) setup will be available?
Last edited by leviticus88; Sep 3, 2009 at 07:34 PM. Reason: Automerged Doublepost
i believe its 2.25" or 2.5" i will have to double check on that, and a ecotec set up wont be available for a while, need a cobalt at the shop to work on, and almost every cobalt driver uses it as their DD...we do have a lsj intake manifold...so we can make one to make sure it al lines up right but w/out a car here we can make sure it will all fits correctly....
i believe its 2.25" or 2.5" i will have to double check on that, and a ecotec set up wont be available for a while, need a cobalt at the shop to work on, and almost every cobalt driver uses it as their DD...we do have a lsj intake manifold...so we can make one to make sure it al lines up right but w/out a car here we can make sure it will all fits correctly....
I have to say I am alittle disappointed in this project. I was hoping for a water to air in the worst way. Now I'm trying to beat a dead horse here but what about garrett cores gets you guys off? I'm sure there's a core out there that'll work perfectly. I do have to say though, the thought of the air having more than just a foot to travel does excite me. If you could get a manifold that has that inlet and outlet on opposite sides and a water to air intercooler that'll sit somewhere around the oil filter/pump area I'd be very interested. If this is going to be strictly an air to air project though I'm making my own.
I have to say I am alittle disappointed in this project. I was hoping for a water to air in the worst way. Now I'm trying to beat a dead horse here but what about garrett cores gets you guys off? I'm sure there's a core out there that'll work perfectly. I do have to say though, the thought of the air having more than just a foot to travel does excite me. If you could get a manifold that has that inlet and outlet on opposite sides and a water to air intercooler that'll sit somewhere around the oil filter/pump area I'd be very interested. If this is going to be strictly an air to air project though I'm making my own.


