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Old Nov 30, 2006 | 04:40 PM
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ecu flash and top speed

does a reflash eliminate the top speed restriction on our cars....assuming i am making around 320hp??? (290whp on the dyno) what would the top speed be on my car roughly speaking. its an 05 evo 8 gsr so 5spd.
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Old Nov 30, 2006 | 05:16 PM
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The top speed limit on USDM Evos is faster than you will likely ever go in a car. You may be able to push your car to 160-165 at your power level.

-Paul
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Old Dec 1, 2006 | 10:24 AM
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yeah dont plan on trying out the top speed at all but was curious
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Old Dec 5, 2006 | 01:34 PM
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Top speed is set to 510 kmh. In effect, we have a top speed limiter, but Mitsu chose not to use it.
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Old Dec 5, 2006 | 09:53 PM
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Originally Posted by zeus1
does a reflash eliminate the top speed restriction on our cars....assuming i am making around 320hp??? (290whp on the dyno) what would the top speed be on my car roughly speaking. its an 05 evo 8 gsr so 5spd.
I had what felt like very mild fuel cut or maybe it was mild boost drop at around 150mph once... after changing the boost limit settings and my boost maps etc, it hit 165 and still had a little left with zero restrictor. It took a lot of room to get there. If I would have had my mirrors folded in it might of hit 170 or so given enough space. My STi has a very distinct fuel cut at around 147.

Here's a data log blip from a high speed run; not a 160+ run but close... still revs left.
Attached Thumbnails ecu flash and top speed-speed-run1.gif  

Last edited by Dus10; Dec 5, 2006 at 10:09 PM.
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