S2000 Under The Hood S2000 Technical and Mechanical discussions.

~VAFC tuning resulted in 9hp gain on Abzug's car~

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Old 06-26-2003, 06:17 AM
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This is typical especially with earlier MY.... what was your average A/F ratio.
Good numbers......
Old 06-26-2003, 06:32 AM
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Is there any way to tell if your running too lean? Second question, does the pressure tell you anything ie. whats the typical pressure?
Old 06-26-2003, 06:48 AM
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1.I think high 14's is pushing stoic .... you can phisically tell if your running lean by the tip of your exhaust... typically it should be white instaed of black (rich).
2. don't know
Beroz
Old 06-26-2003, 08:08 AM
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[QUOTE]Originally posted by gernby
[B]I think the V-AFC would provide the most gains on a stock car.
Old 06-26-2003, 10:13 AM
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Does tuning the car w/ V-AFC make the car more likely to detonate in bad weather? Will it make the engine pull timing earlier/harsher in hot weather.

Also, if you got a V-AFT tuned in summer, would you need to retune it in winter to keep from running lean?
Old 06-26-2003, 10:40 AM
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If you are pushing stoic .and you live in a place of extreme weather changes from winter to summer it should not be a problem....
Old 06-26-2003, 11:39 AM
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Okay, lets bench tune for a second here. How would I do with a V-AFC on my supercharged 01? I have the comptech kit, and that dyno interests me. I have a very nasty soft spot right before the vtec crossover. I'd like to do something about smoothing out the power delivery.

What are typical gains at the wheels for a blown s2k? Anyone have before and after dyno sheets?
Old 06-26-2003, 12:23 PM
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[QUOTE]Originally posted by Pakisho
[B]Okay, lets bench tune for a second here. How would I do with a V-AFC on my supercharged 01? I have the comptech kit, and that dyno interests me. I have a very nasty soft spot right before the vtec crossover. I'd like to do something about smoothing out the power delivery.
Old 06-26-2003, 12:44 PM
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Hmmm.

I think I'll wait till the aftercooler/exhaust and any other final mods are on there, then.
Old 06-26-2003, 01:06 PM
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[QUOTE]Originally posted by damcgee
[B]Does tuning the car w/ V-AFC make the car more likely to detonate in bad weather? Will it make the engine pull timing earlier/harsher in hot weather.


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