Idle tip-in/throttle blip knock

[Clipdat]

Lol wtf moment from my old/previous FR-S and the 91oct OTS tune: https://www.ft86club.com/forums/show...postcount=7814

[tomm.brz]

well i guess 91oct is really shitty

[Clipdat]

Haha, at least around here it sure is!

[Nfsundrgrnd]

Got a log with the updated v4 tune, this time with WOT. (gear status is inaccurate)

https://www.dropbox.com/s/395087a3j5...date..csv?dl=0

[Nfsundrgrnd]

Got this video of the engine bay as well. First 2 blips were without DI and then you can hear them kick in after the 2nd blip.


https://youtube.com/shorts/BeruCnskKoU?feature=share

[tomm.brz]

will take a look at log (even if it s a pita with the phone, you should upload it to datazap.me )

is the sound changed to you? from this video it doesn t sound super bad (i m with the phone and audio is bad though, can t hear good until tomorrow) seems simil stock, dont understand if it s regular sound or loud popping sound like the video with oring destroyed honestly

[Clipdat]

Super subtle on the first rev, didn't hear it on the second rev, clearly heard it on the third rev with DI on, clearly heard it on fourth rev.

[tomm.brz]

Originally Posted by Nfsundrgrnd

Got a log with the updated v4 tune, this time with WOT. (gear status is inaccurate)

https://www.dropbox.com/s/395087a3j5...date..csv?dl=0

sorry should have said before, can you log a full throttle. pull in 3rd gear from 2000 rpm. to redline?

[tomm.brz]

log it s not so bad, advance dropped at a time but not in the log

Which air filter do you have? just trying to understand why almost sits around - 10% ltft

[Nfsundrgrnd]

Originally Posted by tomm.brz

log it s not so bad, advance dropped at a time but not in the log

Which air filter do you have? just trying to understand why almost sits around - 10% ltft

that's actually a good question, drove the car through the winter so it might be clogged up. I'll check to see how the filter looks.

[Clipdat]

Hopefully a squirrel didn't make a walnut collection in there.

https://www.tmj4.com/news/local-news...is-nephews-car

[Nfsundrgrnd]

Originally Posted by tomm.brz

sorry should have said before, can you log a full throttle. pull in 3rd gear from 2000 rpm. to redline?

I'm a little paranoid of lugging the motor in low rpms since my last one threw a rod bearing. I could probably do a 2500 and up and see how it takes it and go from there if that works.

[Ultramaroon]

Originally Posted by Nfsundrgrnd

I'm a little paranoid of lugging the motor in low rpms since my last one threw a rod bearing. I could probably do a 2500 and up and see how it takes it and go from there if that works.

Pull from 1500 is fine. Any odd sounds you hear will be coming from transmission rattle due to firing pulses and an already light stock flywheel.

Please learn to use datazap.me for tomm. Understand how much valuable knowledge he is sharing, and effort he is putting into your case.

[Clipdat]

Yeah. That.

It's free to sign up for an account, and it makes reviewing the data really easy. You can even set up data streams (gauges) to view on the left hand side and then "play" back the data and get a great understanding for what was going on in real time. It's just way easier to read/view than a straight CSV file.

It's also just a cool way to extrapolate the data into something that makes more sense for the uninitiated (people like me).