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I havent seen this posted here yet...so...

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Old 12-13-2004, 12:04 PM
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Default I havent seen this posted here yet...so...

<ul><li><a href="http://www.teamfc3s.org/info/articles/fcd/diy_fcd.htm">Map Clamp</a></li></ul>
Old 12-13-2004, 12:53 PM
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Default Should only be done on a big turbo if you need more boost then 21psi.

Also should not be done without using some kind of MBC or EBC. The requested and actual boost levels must match other wise the ecu will close the throttle anyway. On the dbw car the ecu does not cut fuel but instead it shuts the throttle plate as a safety if the boost is too high.

I have been running a cap(diode/resister) on my boost sensor signal line since the end of 2002. As you can see you dont need all the parts on that guys parts list. If you look on the S4 forum you can find a bunch of owners there that are running the same thing I have.
Old 12-13-2004, 02:43 PM
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Default the method they have works exactly like the simple diode cap...

it just gets its own power instead of drawing off the sensor. think of it as an active cap instead of a passive one. it definately is more elegant, and better than, a simple diode cap.
Old 12-13-2004, 03:49 PM
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Default Well I always thought the simple was is the best way.

Been running the simple cap in my car for 3 years now and it still allows me to run as much boost as I want without closing the throttle.
Old 12-13-2004, 07:40 PM
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Default question about clamping in general....

there really isnt a need to clamp unless you've made fueling and turbo upgrades...correct?

i guess you could use a clamp to mask a boost spiking problem...but that would be stupid.
Old 12-14-2004, 07:44 AM
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Default Correct. No one should use a clamp unless they are running a larger turbo

with larger injectors.
Old 12-14-2004, 12:42 PM
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larger injectors + software right?
Old 12-14-2004, 01:22 PM
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Yes.
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