08 civic si reflash

Questions / support for the K-Series ECU re-flash
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Sanmiglite
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08 civic si reflash

Post by Sanmiglite » Thu Jan 29, 2009 3:39 pm

Just got my reflash from church automotive last friday (thanks church automotive). I have aem cai, tbs, tbg, img, strup header, hks sport catback, crank pulley. What i noticed was its seems the car is slower. Before the reflash the car would accelerate faster from 4.5 all the wAy to 8k. Now, it takes a while and i would really have to floor the gas. With all my bolt ons, would the ecu have to relearn everything? Coz i remember when i installed my pulley, header, intake, it took a week before i felt the difference. Thanks.

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Spunkster
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Post by Spunkster » Thu Jan 29, 2009 6:08 pm

You really need to put it on the dyno to see the actual hp change. Because the vtec point has been lowered you may not feel that distinct change in power you used to.

Sanmiglite
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Post by Sanmiglite » Thu Jan 29, 2009 6:48 pm

Spunkster tnx for the reply. Im definitely going to the dyno. Good thing i dynoed my car before the reflash.

Another ? : i was thinking of sending my cylinder head to portflow. Would this have a neg effect coz i have a reflash? Tnx.

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Spunkster
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Post by Spunkster » Fri Jan 30, 2009 5:19 pm

You probably won't see any gains from haveng the head ported with stock cams and no way of tuing the ecu.

Sanmiglite
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Post by Sanmiglite » Fri Feb 06, 2009 5:35 pm

Spunkster,

here are results of my dyno. before and after reflash
Attachments
Before Reflash.JPG
Dyno before reflash
Before Reflash.JPG (214.31 KiB) Viewed 1991 times
After Reflash.JPG
after reflash
After Reflash.JPG (203.29 KiB) Viewed 1991 times

Sanmiglite
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Post by Sanmiglite » Fri Feb 06, 2009 5:36 pm

let me know what you think? are the gains really minimal at peak rpm? thanks for your input

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Hondata
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Post by Hondata » Mon Feb 09, 2009 8:46 am

The dyno result is almost identical to what we found in testing:

(see http://www.hondata.com/reflash_06_civicsi.html)

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Hondata1
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Post by Hondata1 » Mon Feb 09, 2009 3:21 pm

Yes. This is exactly what we say on the reflash page: "Power is gained in the midrange from 4700rpm to 6300 rpm. Power gains above 6500 rpm are negligible, although the higher rev limit will raise average power a little."

Sanmiglite
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Post by Sanmiglite » Tue Feb 17, 2009 12:36 pm

Hello,

If i were to use the 06 tsx cams, would the reflash work? Ive heard ppl using tsx cams on the z3. Thanks.

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Post by Spunkster » Tue Feb 17, 2009 1:20 pm

This is not tested, and is not recommended as the tuning for other cams will be different than the stock cams.

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