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Front Mount Intercooler for C/S

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Old Feb 9, 2005 | 06:00 AM
  #11  
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How could air to air will drop below ambient temp? unless supplying air is specially "air conditioned"?

in "real" world, SC adds more friction and robs HP of the engine to make more HP. as pressure increses in pipe, SC will have harder time turning thus adding more friction/resistance which equals robbing more power.

So far anyone I talked to or article I've read, says AC is for SC and IC is for turbo.
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Old Feb 9, 2005 | 10:36 AM
  #12  
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i don't know... the car feels a billion times faster with the air to air on. i lost .5psi to 1 psi from supercharger to intercooler to throttlebody.

i'm going to guess i'm either where i'm at "pre intercooler" or faster. i need to get on a dyno and see for my self but my guess is that its faster. i mean even in the early winter times w/o the intercooler it felt really slow, now with it on the car seems a lot faster.


in comparison between the two, i don't know how much more power and effiency the air to water has over the Air to air but i know in drag racing with ice water its more efficient. I'm guessing in daily driving the air to air is more efficient.


i dont' know if that made any sense. I just pulled an all nighter studying. i'll make a better report of the air to air + comptech later.
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Old Feb 9, 2005 | 03:43 PM
  #13  
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Originally Posted by BLOWNJROCK' date='Feb 10 2005, 05:36 AM
i don't know... the car feels a billion times faster with the air to air on.
I'm sure there is a psychological term for this but for now I am just going to have to call it (no offence intended).

Charge cooling, whether AC or IC of our superchargers does not increase performance. It does increase safety margin and hence allow you up boost but by itself it does very little.

If you really are feeling an increase in performance I would suggest it is for one of two reasons. It is possible your charge air was so hot before that the ECU was sensing it and pulling timing. This would really only be the case if you have upgraded from no charge cooling to an IC.

The other possible reason is that as you are pumping the same amount of air but it is exerting less pressure your FPR is adding less fuel. In which case you would be running lean. Yes, this will result in more power, but not for long.

There is another possible explanation for this apparent phenomenon. Perhaps the extra pipe length is resulting in delayed pressure (lag) but when it comes on you feel the sudden surge as extra performance.

Any way you look at it, it ain't a 'billion time faster'.
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Old Feb 10, 2005 | 05:26 PM
  #14  
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Originally Posted by AusS2000' date='Feb 9 2005, 06:43 PM

Charge cooling, whether AC or IC of our superchargers does not increase performance. It does increase safety margin and hence allow you up boost but by itself it does very little.

If you really are feeling an increase in performance I would suggest it is for one of two reasons. It is possible your charge air was so hot before that the ECU was sensing it and pulling timing. This would really only be the case if you have upgraded from no charge cooling to an IC.
this actually does make sense. i did install it in the winter time, and the time i was driving it around it was still pretty hot over here. so that could be the difference maker.
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Old Feb 13, 2005 | 05:04 PM
  #15  
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i think corky bell says it best,
" the air to air intercooler will have greater simplicity, GREATER THERMAL EFFICIENCY at higher speeds, greater reliability, lower maintenance and lower cost.
" the air to water unit will have greater efficiency at lower speeds, better throttle responce on a mass flowmeter equipped efi system is present, lower boost loss and less compressor surge.

so lets narrow this down.

---when you are in boost are you going slow?, i hope not, if you are there is something wrong. so throw the low speed efficiency factor out the window, plus on a heatsoaked water to air system i would venture to say temps are higher than an air to air unit.

---we dont have a mass flowmeter equipped vehicle, so no throttle response plus --no brainer

---yes lower boost loss but a hotter air charge, no brainer- cooler air charge better, safer hp. this would explain the reason for 1psi boost loss on BLOWNJROCK's car but more hp from the butt dyno. his car will respond to a high boost pulley better and safer


lastly why are 90% of the intercoolers in use air to air???
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Old Feb 13, 2005 | 05:13 PM
  #16  
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I don't think anyone is arguing which is the better design in general. The question is which is better for our application.

The Air-Air is more efficient but both are more than adequate for this application.

So it's a judgement as to whether the complexity/cost etc of an Air-Water is worth the shorter air path. In the case of a low boost SC I would say yes, and so do Vortech and Comptech.

BTW, you do boost when you are going slow. That's how you end up going fast.
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Old Feb 13, 2005 | 08:43 PM
  #17  
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Originally Posted by AusS2000' date='Feb 13 2005, 06:13 PM
I don't think anyone is arguing which is the better design in general. The question is which is better for our application.

BTW, you do boost when you are going slow. That's how you end up going fast.

True. I spend 100% of my time as a daily driver. That means, that if/when I boost, it's in first or second. Slow?
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Old Feb 13, 2005 | 08:47 PM
  #18  
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I'm sure both are very effective as everyone metioned, but one of the main reasons I went with the A/C is so when I'm parked, people cannot tell that I'm running boost. Also why my gauges black out when the cars off. Keeps the attention away when Im in parking lots. Also the main reason why I havent upgraded to the Tech 2 radiator.
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Old Feb 13, 2005 | 08:58 PM
  #19  
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what gauges do you have? defi?

i like the bling factor, but you really have to look to notice the intercooler


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Old Feb 13, 2005 | 09:37 PM
  #20  
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You can't hide that thing from me.

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