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Help with 08 Civic Si Tune

Posted: Sat Jan 29, 2022 10:45 pm
by Devoix
Hey guys I had someone help me on here before with my tune and He was AMAZING and i was stupid and offended him by accident but, Im def. a different person now then i was 2 years ago. If he shows up on here and comments, im truly sorry ! but, i do still however need help if possible and i have all of the tunes from prior and data logs for what i have now...

The things done to the car are follows...
New plugs Iridium (suggested OE plug and gap) and new COP boots
Short Ram intake Dry filter (no oil)
Stock Cat
Aftermarket cat back exhaust slightly oversized im pretty sure it's 3in i can measure right now...
Fresh exhaust gaskets ensuring no leaks for the read from the o2 sensors
tune on car from prior
no stickers on car (i just thought it was funny every one adds 50hp you know! haha jk jk)
Stock Headers
Urethane motor and trans mounts
New clutch and throwout bearing

I have the ability to data log from the Hondata and PC and already did some pulls tonight if someone can help!

Again, i apologize if i had offended anyone from before but, like i said im a different person then i was 2 years ago...

Re: Help with 08 Civic Si Tune

Posted: Sat Jan 29, 2022 10:52 pm
by Devoix
the last data log...

Re: Help with 08 Civic Si Tune

Posted: Mon Feb 07, 2022 10:26 pm
by keto06
post the tune

Re: Help with 08 Civic Si Tune

Posted: Wed Feb 09, 2022 4:42 am
by Devoix
My bad the tune is on the other one but not this one hang on

Re: Help with 08 Civic Si Tune

Posted: Wed Feb 09, 2022 4:50 am
by Devoix
ok there ya go :)

Re: Help with 08 Civic Si Tune

Posted: Wed Feb 09, 2022 3:05 pm
by keto06
It needs some work, but its not bad.

No knocks. AFR stays mostly in the safe range during WOT.

Id prefer 3rd gear pulls to 1-2-3 but this is a start.

What was your concern?

Re: Help with 08 Civic Si Tune

Posted: Thu Feb 10, 2022 3:02 am
by Devoix
Well last time I had exhaust leaks and all kinds of things I just want to clean it up a little someone said that my afr was all over the place when they looked and I can do different pulls today and post that on my way to work !! But I just wanted some help making fine adjustments to :) if Possible !!

Re: Help with 08 Civic Si Tune

Posted: Tue Feb 15, 2022 1:25 pm
by keto06
Just made a few changes.

Get me a long datalog with at least a couple good 3rd gear pulls

Re: Help with 08 Civic Si Tune

Posted: Wed Feb 16, 2022 1:42 am
by Devoix
I’ll load it first thing in the AM and data log that :)

Re: Help with 08 Civic Si Tune

Posted: Wed Feb 16, 2022 2:42 am
by Devoix
I wanted to thank you again for your help taking time out of your day to make sure my car is ok :) that means a lot to me, thanks!!

Re: Help with 08 Civic Si Tune

Posted: Wed Feb 16, 2022 2:26 pm
by keto06
no problem.

Let me know how it goes.

Re: Help with 08 Civic Si Tune

Posted: Wed Feb 16, 2022 2:28 pm
by Devoix
I can tell you it ran totally different lol

Re: Help with 08 Civic Si Tune

Posted: Wed Feb 16, 2022 2:39 pm
by Devoix
i'll do a long one now but in the mean time here....

Re: Help with 08 Civic Si Tune

Posted: Wed Feb 16, 2022 4:12 pm
by keto06
Were these pulls all done back to back?

If so, you can really see the impact (heat soak) from the short intake: First pull IAT was ~48F, 4th pull IAT was ~91F

At 91F the AF curve is pretty flat, but at 48F you have a massive spike around 5750. (ECT was similar throughout)

I am going to adjust the IAT comp a little and add a bit more fuel in that area so it should be good regardless.

Not making any major adjustments yet, but I think the Cam Angles, particularly on the top end, could use some fine tuning.

Quick Update

Re: Help with 08 Civic Si Tune

Posted: Wed Feb 16, 2022 4:15 pm
by keto06
New file attached