sean05

iTrader: (13)

hey guys. ive been looking at all the supercharged cars, threads, stickies, all over the internet researching all about supercharging. I ran across slamd maxs cardomain and saw this pictures:


Im very curious about why this setup was done this way. Please excuse me if this is a total retarded question. I just thought it would be best to get the air to the TB. Maybe im missing something with this design. Hopefully slamdmax or on of the other FI gurus will chime in.

Last question was i ran across this picture googling.





How beneficial is the powercooler for street use?

Thanks guys

Sean

ewuzh

iTrader: (20)

In the first pic, the piping was done that way to keep the pipes and charge air temperature cooler. The stock stillen charge pipes route right over the exhaust manifolds, heating up the piping (and the charge temps). However, by extending the length of piping down in front of the bumper to decrease temps, it is done at the expense of some boost pressure.

The second pic is i30krab's car I believe. The PowerCooler is an Air-to-Water charge air cooler. ptatohed and The_Wizard both installed AWIC's on their boosted max's. I believe they both saw a 30F degree decrease in charge temperature, maybe more or less, I can't remember. Perhaps they can chime in with their input.

sean05

iTrader: (13)

What kind of temp drop was seen when the pipes were routed down through the bumper? How much pressure was lost? With the powercooler a 30F drop is significant correct?

Tatanko

iTrader: (34)

Wasn't slamdmax's car was also done that way in preperation for a FMIC?

sean05

iTrader: (13)

i think so. Because on his cardomain hes got this..

Flava_24/7

iTrader: (46)

When Slamd first did the front piping it wasnt in preperation of the FMIC, he just did it to reduce the temperatures such as Stephen Max did.
Stephen later did a FMIC and so did Slamd shortly after.

Stephen Max's setup


Stephen said air temp at the throttle body was only 10 deg F higher than air going into the blower with a 1.5 psi loss in boost pressure due to the FMIC
http://forums.maxima.org/showthread....ht=intercooler
I now have Slamd's piping setup now and will be using a smaller intercooler on my setup once I get a full weekend to dedicate to it.

sean05

iTrader: (13)

thanks flava. Stephens intercooler looks awesome.

abci30

iTrader: (11)

those are some HUGE intercoolers

sean05

iTrader: (13)

does anyone know the sizing on slamdmax or stephens intercooler? just for future reference

Flava_24/7

iTrader: (46)

Slamds was a 30.5x12x3 and Stephens was 24x12x3

mforrest100

iTrader: (24)

Don't know but I think those are too big. I think something smaller will have less boost loss. I would probably go with a 24 X 8 X 3 if you could find one.

Nealoc187

iTrader: (23)

I had a big explanatory post typed out and then my browser deleted it for some *******ed reason. So I'll type the short and dirty version here. Those intercoolers are far too big for the power both of those guys are making, massive overkill, and diminishing returns.

AWICs setups are great charge coolers UNTIL such time as the water in it becomes heatsoaked. At that point, because water is both harder to heat and harder to cool than air, it will take much much longer for that now heated water to cool down again. AWICs are typically used in setups where space considerations dictate their use, or when maximum cooling is needed for periods of time where heatsoak is not able to occur because the car just isn't running long enough.

ptatohed

iTrader: (12)

I like my AWAC (Air-Water-AfterCooler). http://forums.maxima.org/showthread.php?t=453847
But, like Nealoc said, when the water heats up, it's all over. If I start the car, and drive, everything is great. At normal driving, the intake temp is 10-20^F above ambient. At full boost, the intake temp is about 40^ less than the temp. before the AWAC. But as soon as I hit some stop and go/red lights and/or park (for even 5 minutes), the intake temps rise (to about 30-40^ above ambient). But, even after heat soak, the intake temp is always lower at full boost than the temp. upstream of the AWAC. The fun part is using ice. The Wizard and I went to the track the other night and I brought a chest of ice with me and I would drop ice in after each run. My temperature delta at full boost was consistently 60^! Nice. (180^ upstream, 120^ downstream). Right now my AWAC runs right over my exhaust manifold so I think that is killing me. I wrapped my AWAC in some water heater blanket (what I had at home) which helped a little but I am looking into some better thermal insulation. DEI makes some cool (no pun intended) stuff. http://www.designengineering.com/products.asp
I am also looking into buying little 12V fans and stratigically placing them. Overall, the AWAC is definitely worth having. Even on the hottest of days and after mega heat soak, my boost intake temp is 30^ less than the upstream temp. The worse case scenario is your non-boost intake temp. is the same upstream and downstream.

sean05

iTrader: (13)

thanks ptato. i will efinitely be considering this farther down the line

iansw

iTrader: (7)

Has anyone to date shown any dynos demonstrating either an increased total curve or peak power increases with a S/C and FMIC or AWIC?

ptatohed

iTrader: (12)

I think Vortec has some pretty good literature comparing the two. You might check out their website and read about their water-to-air charge cooler.

The Wizard

iTrader: (43)

Or you could dyno your car already.....

ptatohed

iTrader: (12)

That doesn't tell us how it compares to an air-to-air though.

Sure, find me a dyno for no more than $50-60, no more that 20-30 miles away and you have a deal.

The Wizard

iTrader: (43)

At least we could see what number you put down and how beneficial the AWAC really is.... Stephen Max added an IC, lost psi, and dynoed pretty much exactly the same HP's. Of course, he has safer boost levels blah blah blah. So, it a sense, it will show how it compares to an air-to-air setup.

Now get dyno-ing man