S2000 Under The Hood S2000 Technical and Mechanical discussions.

Top End w/ VAFC & Bolt Ons

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Old Jan 16, 2005 | 12:19 AM
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Default Top End w/ VAFC & Bolt Ons

I have a stock 01 s2000, you know how 5.5-7 it really pulls, and when you get close to 8000-9000 it seems to somewhat level off, but still pulling?

I was curious with Bolts ons (I/H/E, not cat) and a vafc tuned if hat would be enough to resolve that?


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Old Jan 16, 2005 | 06:39 AM
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Here are my results:

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Old Jan 16, 2005 | 10:35 AM
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A well tuned V-AFC would fix that by itself. The other bolt-ons won't. The factory fuel map is very rich at high RPMs, so power drops off significantly. By leaning out the mixture up top, you can easily gain 15-20 HP at 8900 RPMs on a stock engine. By comparison, you may be able to get an additional 5 HP from an extra $5000 in bolt ons.
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Old Jan 16, 2005 | 10:54 AM
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BTW, if you have an '00-'01 ECU, you will benefit greatly from a V-AFC if it is tuned by someone good (like Shawn Church).
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Old Jan 17, 2005 | 05:16 PM
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i am thinking of taking it to either XS Engineering or Dynamic autosports, the tuner at XS used to work at apex, but where can get in contac twith Mr Church?
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Old Jan 17, 2005 | 05:59 PM
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www.churchautomotive.com i believe tymour.


Parker
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Old Jan 17, 2005 | 07:53 PM
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Originally Posted by gernby,Jan 16 2005, 11:54 AM
BTW, if you have an '00-'01 ECU, you will benefit greatly from a V-AFC if it is tuned by someone good (like Shawn Church).
Whats different about the 00-01 ECU that benefits better from a V-AFC?
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Old Jan 17, 2005 | 09:08 PM
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the 02-03 ecu was modified a little.... (for the better).... which is what the vafc will do to the 00-01...
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Old Jan 17, 2005 | 09:59 PM
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I got an '02. It dyno'd at 202.7hp and 136.3tq. 1st run.

202.4hp & 136.0tq 2nd run
Cooled it down with a fan to the manifold and then...

205.9hp and 139.2tq...ALL STOCK

www.batlground.com in ATL is where it was done.


Getting I/H/E with VAFC tuning done. Can't wait to see results...
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Old Jan 18, 2005 | 04:57 AM
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Originally Posted by billyblast,Jan 18 2005, 12:59 AM
Getting I/H/E with VAFC tuning done. Can't wait to see results...
You will be disappointed with the results of the I/H/E. All together they might gain you 5 HP more than the V-AFC alone.
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