Found this old thread on LS1 Tech forum...
35HP with IC Spray alone on BONE STOCK TC !

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Her Cobalt has 15k miles on it and is BONE stock with a K&N filter. There is no tune of any kind in the car. Check out the gain on the last pull, we chilled the intercooler with a nitrous bottle just for the hell of it. Needless to say, we were all pretty shocked... I am still kicking myself for selling my spare bottle... I think this car is in need of a spray bar or a 50-75hp dry shot.

Dyno and discussion (interesting)>>>
Dynoed the G/F's 08 Cobalt SS/TC - LS1TECH

 

care to elaborate??

 

Such a waste of nos, its better to spray it into the engine not onto the intercooler. But nice gains nonetheless.

 

What about spraying water into it instead of No2? I know the newer STI's come with an intercooler spray, and when I rode in my buddies, it seemed to make quite a difference especially after a few pulls.

 

one guy said to use CO2 instead

 

Spraying CO2 can work well, assuming you can avoid any injestion into the engine. Any accidental CO2 injestion will result in noticably power loss so it can be a little iffy

 

he said to use it because its alot cheaper and easier to get.

 

lol.. I understand that. However cost doesn't change the fact of the issue I was refering to

 

Just surprised to see that much gain with this technique. Also, there wasn't any *learn down* on this either..that's a surprise. The ECU hasn't been touched.

 

Water can only cool down a hot ic back to ambient temps, nitrous on the other hand can freeze it.

 

water also can't be used at a drag strip for obvious reasons.

 

CO2 cheaper and easier to get

 

I've seen water, and co2 combined. Spray water then spray co2 icing the intercooler.

 

buy a can of duster, turn it upside down then spray it on your IC before you run might work lol

 

I'm pretty skeptical about those results. A couple HP I would believe, but not 30+. There is just no way that's accurate.

If this were the case, every single person on here would have a spray bar on their intercooler. To the best of my knowledge, no one does...

 

i am too... if its stock it still has the learn down feature

 

but wouldnt icing the intercooler decrease air flow through the fins?

 

Won't matter if that icing cools down the IC a TON more than ambient air flow would thru the IC.

 

Subd

 

Hey, the results are pretty clear in that dyno. They used Nitrous bottle... we don't know how much or how applied. Maybe that's not practical. I know CO2 is used, but that may not be as effective as blasting the IC with a bottle of Nitrous.

 

I personally had the CRYO2 intercooler spray on my Hahn IC (saturn sky redline).






CO2 and Nitrous gases will have similar results, when sprayed on IC.

I gained only 5whp using it on the dyno.

I don't use it to get more power, but to avoid heat soak during drag race.......and also for car show purposes.

I removed and sold it this year.

With the amount of money you'll use with a CRYO2 kit, I'll go with a water/meth kit instead. You can get A LOT MORE WHP, and can use it on a daily basis, unlike cyro/nos IC kit which is very costly if you use it all the time.

 

That dyno graph is nothing more than a picture on an internet forum right now. The guy could be lying, or the dyno may have also givin' an inaccurate reading on that run. We don't know...

What I do know is that it is not a true representation of a stock SS/TC with just the IC sprayed. No logical person can argue that.

 

Maybe the car ingested some of the nitrous they were spraying the IC with.... that might give you a 30 hp jump lol.

 

He had *no axe to grind* with those results....I mean...what would they get out lying on this? The results without the spray came out AS EXPECTED, so we know that part is correct and this lends more credence to the IC results. It was an unexpected result as the OP stated. Anyway..take it for what it's worth. Maybe someone here can try to replicate the results?

 

That wouldn't happen unless there was a hole in the intercooler. Hole in intercooler = boost leak = no power haha

I agree, he has no reason to lie. Therefore I am going with an error on the dyno. We've all seen them before, they aren't unheard of.

I have been considering getting a spray bar for a while to see how they work. The systems are relatively cheap and the purge is also a bit of fun! When and if I get one, I will do a comparision.