Supercharged Apex

Srxspec

Srxspec

Your #1 performance shop!
Joined
May 7, 2003
Messages
858
Age
42
Location
Menno, SD
Website
www.ulmerracing.com
Just did the install on an MPI supercharger yesterday. Total time was about 7 hours to install it and I still have a few little things to do yet.
 

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If snow were to get on top of the supercharger could that effect it in anyway? With the airbox gone it leaves that hole in the hood wide open, just wondering.
 
The itnercooler would usually melt the snow because of the heat caused my the SC. But i got to thinking, is there any heat created there allen? I am wondering because it isnt a roots type or inst fed off exhaust like a turbo, so there shouldnt be any superheated air? I know that when air is compressed, the molecules move at a faster rate, thus creating heat, but would it be enough to have to worry about an IC? Just curious on this, as I got to thinking about it, and its now bothering me, LoL Let me know
 
I think i have figured out my own question! You need the IC to cool the heated air, even tho i dont htink it woudl be that much. Because warmer air is more prone to detonation, thus running it through the IC would cool it back down, and make it more dense, and less prone to detonation. So in theory, the snow should melt off the IC from teh air passing through it being warmer than 32* F.
 
Any time air is compressed heat is created. The cooler the air, the more contained per volume.

A pump with 100% adiabatic efficiency will put no extra heat into the system, however we know that this is not possible. I believe roots blowers are only capable of a little more than 50% adiabatic efficiency, while centrifugal supers can get up to nearly 80% adiabatic efficiency. These numbers represent the amount of heat created by the blower.

There is a ton of information out there covering turbos and supers, and for the most part it is some interesting reading.
 
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The supercharger gets upwards of 200* and the air flowing the intercooler gets cooled down to roughly 80*F I believe. The snow that ends up on the intercooler will melt faster than Fat Albert can eat a candy bar. I do have a scoop that will go into that opening in the hood, just haven't had time to put it on yet.
 
Srxspec said:
The supercharger gets upwards of 200* and the air flowing the intercooler gets cooled down to roughly 80*F I believe. The snow that ends up on the intercooler will melt faster than Fat Albert can eat a candy bar. I do have a scoop that will go into that opening in the hood, just haven't had time to put it on yet.
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...wow, I didnt know it got that hot in the SC compressor housing, and 98srx6, your about right on volumetric efficeincy, and I know abit about turbos and SC, just didnt know the centrifical on thh sled got that warm! That really surprises me, but thanks for answering my question spec and 98srx6, I didnt know they got that hot! Thanks again guys!
 
*99sRx700* said:
...wow, I didnt know it got that hot in the SC compressor housing, and 98srx6, your about right on volumetric efficeincy, and I know abit about turbos and SC, just didnt know the centrifical on thh sled got that warm! That really surprises me, but thanks for answering my question spec and 98srx6, I didnt know they got that hot! Thanks again guys!
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Yeah its actually just simple physics, once air is compressed the energy has to disspate in the form of heat. Doesn't matter what compresses it it will always get hot. In fact a turbo with the exhaust turbine sitting at 1200 degrees right next to the compressor housing will add minmial if any heat compared to a SC that has ambient air sitting around it and they will still discharge fairly close outlet intake temps.

Spec - how is the fuel added and controlled on the EFI? How much tuning invloved?
 
Supercharger = not near as much added under hood heat like a front mount turbo, no header to worry about cracking, no lag like on a rear mount and much less install time!
 
Very nice Allen...great job. I have seen way to many Turbo Problem....I must be getting old...stock is looking better every year... LOL
 
Also, to answer your question Kinger, there is a electronic box that plugs into the stock wiring harness to add extra fuel for the supercharger.
 
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