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Superchargers hate heat!?

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Old Apr 17, 2003 | 03:51 PM
  #1  
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Default Superchargers hate heat!?

I cannot believe superchargers hate heat as much as they do. When I installed and tuned my supercharger it was 40-50 deg. Now that the temp has gone up to 90 deg I can really notice the difference. When it was cold, I would have put my truck against a Z06. Now, I not sure if I could outrun an auto vette.
Has anyone else had this happen? Any suggestions? I will make myself a cold air intake for my truck, the ATI filter is 6 in. from the top of the header.
P.S. I am going to dyno my truck next weekend and post the results.
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Old Apr 17, 2003 | 04:05 PM
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Default Re: Superchargers hate heat!?

Yes, my car does the same thing. When it gets like 90-100 degress out side i can not even tell i have a supercharger on the car.!!! My intake temps were like 160 degress. After i installed my intercooler it made a big dirfference on hot days. my temp stays around 110 degress after some hard runs. And on cooler days the temp stays in the low 90s. Im going to add some watter wetter to the intercooler to see if it helps lower the temps at all. The ice box set up works like ****. it takes about 2 minutes to melt the ice and bake the water. but i could see how it would help on the track.
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Old Apr 17, 2003 | 04:12 PM
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Default Re: Superchargers hate heat!?

I have the intercooler that came with the ATI setup. Maybe I should upgrade my cooler. On a hard run my temps will jump from 75 to the 150s. I made a scoop for the cooler and it helped the temps cruising but, as soon as I deck it the temps still skyrocket.
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Old Apr 17, 2003 | 05:10 PM
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Default Re: Superchargers hate heat!?

i have the vortech air to water aftercooler set up. Before i added the intercooler my car would do the same thing that you are saying. Is your intercooler air to air!!!! I dont have any experiance with them if so. It sounds like the air to air is not cooling it down at all when you jump on it. Any one else have any imput on this???
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Old Apr 17, 2003 | 05:43 PM
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Default Re: Superchargers hate heat!?

I would think that air/air would reduce temps when the car is moving but it would probably never get to ambient.

Anyone have water wetter experience?
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Old Apr 17, 2003 | 06:06 PM
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Default Re: Superchargers hate heat!?

don't for get that the pcm pulls timing ( up to 9 deg i think) when intake temps rise.

try putting the intake away from the header, and if you want to get fancy, put som WOT or rpm activated water misters to spray water on the intercooler when flooring it.
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Old Apr 17, 2003 | 06:06 PM
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Default Re: Superchargers hate heat!?

It's not just Superchrgers. All the turbo cars I've owned also had the problem.

Spraying a little nitrous on the IC helps a lot. But for a daily driver you really need to come up with the right solution.

What's worse are those cars with their compressors up high in the motor. They don't tend to get air across them and they build heat and heatsoak rapidly.

You may actually want to consider some sort of heat exracters also on the hood.
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Old Apr 17, 2003 | 06:32 PM
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Default Re: Superchargers hate heat!?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"><strong> I cannot believe superchargers hate heat as much as they do.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">This is a problem inherent to the concept of forced induction. The supercharger impeller (or turbo) has to work very hard to compress air. This work creates heat, which expands the very air that was just compressed. Thus to some degree, the act of supercharging in and of itself negates the horsepower it was designed to add. Your intercooler is designed to help correct this by cooling the air charge (hence re-compressing it) before it enters the engine. But even the best aftercoolers and intercoolers are fed by air from the outside of the car. If its 95 degrees outside, then even a perfect aftercooler (without ice) could only hope to cool the air to 95 degrees. Likewise, if it was 40 degrees outside. But 55 degrees difference in air charge is a BIG difference in horsepower, definitely enough to feel in the seat of your pants.

It hasn't gotten really hot here in Maryland yet this year, and I've only had my supercharger on for a little over a month. So I'm curious to see how much horsepower I'll loose due to the excess heat.

Best of luck.
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Old Apr 17, 2003 | 07:10 PM
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Default Re: Superchargers hate heat!?

go out and enjoy this nice cool weather once it gets very hot the power starts to drop of big time. After a few street races on a hot summer day, i can feel the car slowing down more and more becasue of the heat soaking. Thats why it is kind of nice to have the ice box, Just add some nice cold ice back in and enjoy for a few more races.
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Old Apr 17, 2003 | 08:10 PM
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Default Re: Superchargers hate heat!?

My air to air intercooler is mounted flat directly under and behind my front bumper. With my scoop and a slight cut between the fog lights it increased the air flow. Cruising at 80 mph the IAT stays about 3-5 deg. above ambient. After a good run the intercooler is about 10-15 deg. cooler with the scoop. I will look into some N20 to spay the intercooler.
I took out the timing adjustment with high IAT.
Although, I am glad to see I am not the only one with this problem.
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Old Apr 17, 2003 | 08:39 PM
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Default Re: Superchargers hate heat!?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Pro Stock John:
<strong>
Anyone have water wetter experience? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I used it in my last blown Fbody's aftercooler (Vortech) and my car ran a touch cooler with it in the mix.
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Old Apr 18, 2003 | 06:15 AM
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Default Re: Superchargers hate heat!?

Is there any benefit to running a small electric fan on the Intercooler/Aftercooler radiator? or does this just simply get in the way and end up blocking further airflow potential at speeds say above a certain MPH. (Depending on what the the Electric Fan is speced for)
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Old Apr 18, 2003 | 10:47 AM
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Default Re: Superchargers hate heat!?

ahhhhhhhh the beauty of water/alky injection.

my car doesn't care if it's 40 degrees or 100 degrees. intake temps are always nice and cool <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

intercooler - schmintercooler <img border="0" title="" alt="[Razz]" src="gr_images/icons/tongue.gif" /> <img border="0" alt="[jester]" title="" src="graemlins/gr_jest.gif" />
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Old Apr 18, 2003 | 02:09 PM
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Default Re: Superchargers hate heat!?

I knew I was going to be facing this in the summer time. So I invested in the SMC alky injection system. I have it installed I just need to tap it into the boost line so that it turn on whenever it detect boost. I have a dual nozzle setup. I got one large nozzle b4 the intercooler that way it will cool the air even further within the intercooler and another smaller nozzle right b4 the throttle body. It should work great. I have herd allot of great thing about this kit.

I costimized the kit so that it uses the windshield resevoir tank as the fluid source. When you open up the hood it isnt even detectible because there is no tank and the line are running underneath the car. It should work great once Iam 100% complete.
<img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
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Old Apr 18, 2003 | 02:19 PM
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Default Re: Superchargers hate heat!?

I Like the sounds of this water injection, where can i get one. and how much does it cost. is their any horsepoewer increase.
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Old Apr 19, 2003 | 11:23 AM
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Default Re: Superchargers hate heat!?

MMS has a real nice intercooler setup they just developed for the Procharger C5 crowd:

MMS C5 Intercooler Upgrade

Hopeing they come out with an f-body version so I can use it on my setup to come...

<small>[ April 19, 2003, 11:29 AM: Message edited by: InvisibleSun ]</small>
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Old Apr 19, 2003 | 07:51 PM
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Default Re: Superchargers hate heat!?

i can throw an example into this thread.

3 weeks ago my best 1/8 was 7.64@89.5, that was with 8psi(no intercooler) and a 35shot, 20deg out!

1 week ago my best 1/8th was 7.66@88.5, that was with 8psi, a 75shot and 100lbs lighter, it was 75degs out!

similar 60' times 1.72-1.75 for all runs.
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Old Apr 19, 2003 | 08:15 PM
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Default Re: Superchargers hate heat!?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by chasgiv3:
<strong> It's not just Superchrgers. All the turbo cars I've owned also had the problem.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Nah. It's not turbos. It's just that centri S/Cs suck... <img border="0" title="" alt="[Razz]" src="gr_images/icons/tongue.gif" />

<img border="0" alt="[jester]" title="" src="graemlins/gr_jest.gif" />

SC-

<small>[ April 19, 2003, 08:18 PM: Message edited by: SS00Blue ]</small>
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Old Apr 19, 2003 | 08:27 PM
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Default Re: Superchargers hate heat!?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 96SCTA:
<strong> I Like the sounds of this water injection, where can i get one. and how much does it cost. is their any horsepoewer increase. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">SMC.

$350

Yes, there is a performance increase due to the suppression of detonation (water), and the addition of denatured (methyl) alcohol, which is an octane boost. These also factor in with a cooling effect on the intake charge.

The hp increase comes from the fact that you can run a boat-load more boost on pump. Just look up the GN guys. They know more than any of the (alky-injecting) people in this forum, except for me and perhaps one or two others.

SC-
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Old Apr 20, 2003 | 11:17 AM
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Default Re: Superchargers hate heat!?

So the Water-alky is actually injected into the flow of air like nitrous? This wouldn't puit us in a dual power adder class would it?

Also since we're not compressing water, how is it injected? Is there a pump that comes along with the system?

BH
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