S2000 Under The Hood S2000 Technical and Mechanical discussions.

aem stand alone question

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Old Jul 4, 2007 | 05:53 PM
  #11  
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My friends car made 220whp with those headers and a fujitsubo exhaust and 4.77's. stock tune tho. You should retune on stock cams..
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Old Jul 4, 2007 | 08:45 PM
  #12  
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The sort of variances we're talking about are insignificant and less then the difference you'd get on different dynos.

Do you really think 216rwhp out of 2L NA is low? What other car does that?

The reason it seems low is because the S is 190-200 stock. But the minimal increase isn't because your mods aren't any good, it's because the stock parts are so good in the first place.
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Old Jul 5, 2007 | 05:18 AM
  #13  
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I don't know, Aus... the AEM ECU alone has been shown to get a good 20+ hp out of a stock setup. Add in a more free-flowing header/ehaust and intake and I would expect to see closer to 230hp on his ride. Though he may have just gotten a pig from the factory to begin with...
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Old Jul 5, 2007 | 06:50 PM
  #14  
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Originally Posted by N2oExpresS2k,Jul 4 2007, 09:04 AM
Correct me if i'm wrong bue the s2k comes with 345cc injectors from the factory. That would support pretty much anything you could come up with for an n/a setup. Unless you're going forced induction you would definately not need a fuel system upgrade. You dont even need that fuel pressure regulator that you're running
370cc injectors from the factory and they will support at least 300+whp.
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Old Jul 6, 2007 | 05:18 PM
  #15  
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if i get an aem what header, cams and system would you all recommend.

sound is good, power's better though
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Old Jul 6, 2007 | 05:29 PM
  #16  
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LoveFab header with a big turbo on it.
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Old Jul 6, 2007 | 05:58 PM
  #17  
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Originally Posted by s2k jesus,Jul 4 2007, 09:57 AM
yeah have headers on there so the cam should b work good
Will people please stop calling them "headers"! There is only ONE, I repeat, ONE header on the S2000. If it were a v6 or v8 or some other v configuration then we have 2 headers.



As far as your dyno numbers go: What kind of dyno were you on? Some are pretty stingy. What gear was it pulled in? Should be in fourth. How hot was it? What is the elevation?

I just got back today from dynoing a '91 Camaro on a Mustang Dynameter and it laid down 354HP. It was 104*F outside. The same car in April on a DynoJet Dynameter across town, temp was 68*F with no other changes to the car laid down 381HP. See what I am saying. This is probably the most extreme case I have seen in along time but it just magnifies the fact that there are millions of variables involved. Not just a bunch of parts!
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Old Jul 6, 2007 | 07:32 PM
  #18  
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ditch the cam and get a retune. aftermarket cams don't work on s2000. my friends turbo s lost like 40whp with cams
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Old Jul 7, 2007 | 03:37 AM
  #19  
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Originally Posted by batikan,Jul 6 2007, 10:32 PM
ditch the cam and get a retune. aftermarket cams don't work on s2000. my friends turbo s lost like 40whp with cams
Your friend lost power so cams don't work?

Cams work fine, if you understand what they're doing for the engine and make the appropriate changes... slapping them on an engine and asking "where are my huge gains?" is naive. FI creates a LOT of flow, and with no understanding of where and when that flow happens is a surefire recipe to choking it off at the wrong time, hence a loss of power. Talk to g_s2k in Boston who is currently running 300 whp NA, partially due to cams.
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Old Jul 7, 2007 | 05:06 AM
  #20  
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Originally Posted by MacGyver,Jul 7 2007, 06:37 AM
Your friend lost power so cams don't work?

Cams work fine, if you understand what they're doing for the engine and make the appropriate changes... slapping them on an engine and asking "where are my huge gains?" is naive. FI creates a LOT of flow, and with no understanding of where and when that flow happens is a surefire recipe to choking it off at the wrong time, hence a loss of power. Talk to g_s2k in Boston who is currently running 300 whp NA, partially due to cams.
well it was not just him. no one made power with the cams and the vendor even accepted all the returns. stock cams are good up to 500whp. that is why %99 percent of this board uses stock cams
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