Help me read my logs

[Scott4957]

Looking at the logs it seemed similar I guess. I had not looked but mine was as stated, on the shift, the load went up and fuel pressure dropped. He is seeing it drop in the 4k rpm range if I remember correctly.

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[StealBlueSho]

Looking at the logs it seemed similar I guess. I had not looked but mine was as stated, on the shift, the load went up and fuel pressure dropped. He is seeing it drop in the 4k rpm range if I remember correctly.

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I apologize, poor choice of words. Not a similar problem but similar characteristics. However, looking at all the datalogs that have been posted, everyone sees a dip in fuel pressure around 4700-5000 rpms when the load is highest. The snowflake I am seeing in mine is the drop in first gear as someone mentioned earlier.

[Scott4957]

Any idea on what it could be? One of the in tank pumps is the first thought that came to my mind. Fuel filter?

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[ZSHO]

If you guys want, I can move this to his section and maybe have an actual dialogue...

I was hoping not to bother Torrie. Really.. I was hoping someone more familiar with reading datalogs would look at mine and have an "Ah Ha!!" moment. Especially since Scott was having a similar problem. I hate snowflakes....

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There are some members that have had over 20+Revisions from Torrie and IMO would not hesitate to contact him especially if you think its a fuel system related issue because thats where customer service comes to play. Z 

[ElvenSho]

Just got my revision #17 and the car feels beasty like it gained a lot of hp or something for sure! The weird thing is there isent much noise from the turbos like before so that probably means boost was turned down but the car pulls harder!

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[AJP turbo]

Steal blue sho your WOT from a stop is kinda interesting.....Your throttle is closing Id say because you are overboosting and load must be exceeding a torque limit....I'm not sure why you are going so much over your desired boost...You are targeting about 202 kpa but your were boosting to 225 and even 250kpa

Your throttle closings are weird tho, the timing is weird...Your throttle closed before you hit 2nd...Usually your boost spike won't happen til after the shift and then your throttle would close a bit

Some things are hard to deduce because only torrie knows what he is doing in the tune.

And you are leaning out a little more than I would like to see...Surprisingly though, there wasn't much knock sensor acivity....Your fuel pressure isn't terrible for the load you were spiking to. You drop to around 1300 psi fuel pressure which should be enough to maintain AFR but you went to .88 and .90 lambda which I wouldn't like....I've had fuel pressure as low as 700 psi and maintained AFR. You don't and your STFT's spike. So I don't know why you went lean. You were commanding .80 lambda....That is LAMBSE. So if you have fuel pressure, and you do, you should be pretty close to what's commanded and you aren't.

[AJP turbo]

ElevenSHO,

Torrie is commanding boost completely different than steel blue sho....Look at your desired TIP...It is high right after the upshift then it tapers down when you get to redline...I don't know why the difference...You are maxed out on spark for your fuel.....You have knock sensor readings the whole run...I could live with that. The ambient temps were warm so your IATs were also I'm sure which contributes to the knock retard.

Your fuel pressure dips on the big load surge but your STFT's don't spike and you hold afr fine during the pull unlike steal blue sho's.....You guys can also log FUEL REAR PRESSURE DESIRED. That way you can see the pressure the ECU is commanding and what's being delivered

ElevenSHO you aren't actually hitting the targeted boost which is kind of a good thing because you are commanding 230 KPA after the 1-2 and 2-3 shift.....200 kpa is about 15 psi....A lot of other unleashed guys' logs I've seen seem to be targeting about 205 kpa...That's all I got for ya

[AJP turbo]

Scott, boost is pretty low in 1st and 2nd gear and really tapers off at redline. down to almost 150kpa and really short shifted 1-2 and 2-3......5600 rpm?

Id say you are done with spark....Knock retard the whole run...Not bad just on the edge

3rd and 4th gear have nice boost curves though..Nice and flat. Your fuel pressure was fine...But I wouldn't expect to see otherwise, your load never exceeded 1.77.

But scott I would say that your logs are the most uneventful lol

If anyone thinks their fuel pressure is low and think there is a problem look at your load. If it exceeds 1.8 or so expect to see it at 9ish MPA or 1300 psi. And also look to see what is being desired. But High load will always lower fuel pressure when pushing a fuel system to the max.


I'd be curious what you guys are getting for desired fuel rear pressure when you are dipping down to 9 MPA because I bet you are commanding 13ish...Just goes to show that the fuel pump is trying but can't supply it.....In the case of my tune, you wouldn't know there is a pump deficiency because I lowered my desired fuel pressure to match what is being delivered. It keeps the ECU happy because actual mactches commanded instead of the big discrepancy...So it just looks like I'm commanding less because I am

[StealBlueSho]

If you guys want, I can move this to his section and maybe have an actual dialogue...

I was hoping not to bother Torrie. Really.. I was hoping someone more familiar with reading datalogs would look at mine and have an "Ah Ha!!" moment. Especially since Scott was having a similar problem. I hate snowflakes....

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There are some members that have had over 20+Revisions from Torrie and IMO would not hesitate to contact him especially if you think its a fuel system related issue because thats where customer service comes to play. Z 

I asked Torrie, and he seemed unsure as to why my car is acting the way it is. He mentioned looking at HPFP, LPFP, and Fuel Filter. His customer service is outstanding and I have been happy with what he has provided. When I asked for info it was more along the lines of I am not sure what I am looking at, Torrie mentioned several possible issues, and before I started throwing hundreds of dollars at the car I thought it might be worth asking the community if anyone has seen or experienced the same problem.

I think I have found my answer which is that no one has a similar issue and I have learned a lot along the way.

Torrie is awesome, and I hope no one takes my seeking for an answer to what appears to be a complicated problem as a slight towards Unleashed.

[SHOdded]

Knowing that sticking/broken wastegates do occur on these EB's, would that explain any of the abnormalities in StealBlue's logs, AJ?

[ElvenSho]

If you guys want, I can move this to his section and maybe have an actual dialogue...

I was hoping not to bother Torrie. Really.. I was hoping someone more familiar with reading datalogs would look at mine and have an "Ah Ha!!" moment. Especially since Scott was having a similar problem. I hate snowflakes....

Sent from my Nexus 6P using Tapatalk
There are some members that have had over 20+Revisions from Torrie and IMO would not hesitate to contact him especially if you think its a fuel system related issue because thats where customer service comes to play. Z 

I asked Torrie, and he seemed unsure as to why my car is acting the way it is. He mentioned looking at HPFP, LPFP, and Fuel Filter. His customer service is outstanding and I have been happy with what he has provided. When I asked for info it was more along the lines of I am not sure what I am looking at, Torrie mentioned several possible issues, and before I started throwing hundreds of dollars at the car I thought it might be worth asking the community if anyone has seen or experienced the same problem.

I think I have found my answer which is that no one has a similar issue and I have learned a lot along the way.

Torrie is awesome, and I hope no one takes my seeking for an answer to what appears to be a complicated problem as a slight towards Unleashed.

This new tune I got back from Torrie last night and it made a big difference in the feel of the car. Can you take a look at it and give me some details? Torrie said to leave it where it is and to keep an eye on KR and also always use the best fuel possible. Apparently this is a pretty hot tune as he is not able to do more to it. He said towards the end there is a lot of KR, what exactly does that mean? How can I combat this KR, would adding a gallon of e85 to a full tank help? Should I buy some additive from auto parts that boosts the octane? He does not give too much info and I need everything spelled out otherwise I will mess up and blow the thing.

[AJP turbo]

ElevenSHO, You should be pretty happy with that...Should feel beastly. Torrie really changed the boost you were commanding...Not sure why your tunes were so different....You were targeting about 15.6 psi the entire pull through the gears. You are maxxed out on the spark. You had knock sensor activity the entire time but I would live with it...You are getting the most power for the fuel you have....The knock sensor will do the work. Fuel pressure looked good

You never droped below about 15 psi at redline so that's pretty good I think...Big boost spikes at upshifts but that's the nature of this beast unless you want to use the throttle to regulate it, but that's not Torrie's approach. You didn't knock excessively or have fuel pressure drops so I wouldn't worry

I'll be curious to see how well that tune runs at the track.

[SHOdded]

Fomoco would advocate you calling up Brian at BND and getting some ACES love for your SHO, Elven

[FoMoCoSHO]

Fomoco would advocate you calling up Brian at BND and getting some ACES love for your SHO, Elven

I would like to see if it drops his KR....

[ElvenSho]

ElevenSHO, You should be pretty happy with that...Should feel beastly. Torrie really changed the boost you were commanding...Not sure why your tunes were so different....You were targeting about 15.6 psi the entire pull through the gears. You are maxxed out on the spark. You had knock sensor activity the entire time but I would live with it...You are getting the most power for the fuel you have....The knock sensor will do the work. Fuel pressure looked good

You never droped below about 15 psi at redline so that's pretty good I think...Big boost spikes at upshifts but that's the nature of this beast unless you want to use the throttle to regulate it, but that's not Torrie's approach. You didn't knock excessively or have fuel pressure drops so I wouldn't worry

I'll be curious to see how well that tune runs at the track.

Good to hear! I will be at the track on the 23rd and will let you know how it does compared to the previous tune that had me run 12.8@108. Torrie is having me try a gallong of e85 with the full tank to see if it helps with the KR, will actually do a log with that today and send to him. I can post it on here also if you are interested?

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