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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 08-20-2007, 11:08 PM   #1
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Default After supercharger air

How much does the supercharger heat up the air with all the squeeeeezing through the rotors? Temp? Wouldnt all other mods benifit more from IC early in the mod stages? Turbo guys gotta due to using exhaust gases, of course. Would fabbin up an air/air IC, after the filter/before TB, benifit any sort of gains for the lower price? Trying to drop pre supercharger temps more so SC wont have as much of effect.
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Old 08-20-2007, 11:15 PM   #2
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The only car here with a post-rotor temp sensor is 2000Silverbullet. He can give you some comparisons.

How can an air-air intercooler before the TB reduce the temps any when the air being pulled into the filter will be cooled by the same air?

To better understand how pre-cooling the air wil be self-defeating, I'll tell you the greatest temperature rise is actually due to the inlet.

Do a search on 'thermal analysis' with me as the author.
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Old 08-21-2007, 12:29 AM   #3
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i will do....
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Old 08-21-2007, 12:44 AM   #4
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I don't know the temp after a Gen3 SC only my Gen5.

Normally under 0 boost conditions when the bypass is open, my air is heated from 50 F IAT to 120 F.....or from 80 F to 150 F so about a 70 F rise.
Under boost when the bypass closes, the temp rises another 50 F for a total of 120 F rise over intake air temps.......so if the IAT is 50 F, at full boost I am seeing 170 F after SC temps.
This is with a 3.2 pulley at 13 psi boost.

If you draw your intake air from the 130 F engine bay, your after SC temp could be 240 F. ..............and this is with a Gen5 and 160 stat.

I can only guess that a Gen3 with 180 stat would be 20 - 30 F ??? warmer.

Flesh scalds at 140 F.

I believe that Bill Boost also runs an after SC temp sensor but he has not given up any info......that I have read.

....remember that for every 10 F lower temp you will produce 1% more power, so if you can reduce the temp by 80 F you will gain 8% more power.

....but more importantly, you will be able to drop pulley size for more boost pressure and more power. I think 1 psi is worth about 5 hp.

The PCM will advance timing for more power. 1 degree is 3 hp.

It'* all additive.

It'* all good.
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Old 08-21-2007, 08:40 AM   #5
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Quote:
Originally Posted by willwren
The only car here with a post-rotor temp sensor is 2000Silverbullet. .

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Old 08-21-2007, 09:26 AM   #6
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Boosty, that looks like an ECT, and the last I heard, you didn't have it working yet. Paul is the only member here who has ever produced any numbers and data from his.
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Old 08-21-2007, 09:41 AM   #7
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Yes.. it is originally an ECT and will work for the temps I am seeing at a much lower overall cost than the unit Paul uses.

I have a sensor, no data to share at this moment though.
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Old 08-21-2007, 09:50 AM   #8
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Quote:
Originally Posted by BillBoost37

I have a sensor, no data to share at this moment though.
Which is why I stated what I did orignially. Paul is the only one with a post-rotor temp setup on this Forum, and the only one capable of answering the questions in this topic with hard data.
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Old 08-21-2007, 01:10 PM   #9
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Hurry up and get that temp sensor working Boosty.

I want to compare numbers

.....you may be quick with your mods but slow with your results. :P
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Old 08-21-2007, 02:20 PM   #10
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......still researching......
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