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Old 06-26-2016, 09:38 PM   #2801
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We ran it up to 20psi. Only managed 307hp or something. Car was choking up top. Made the same power at 220kpa and 240kpa

Timing was almost spot on. Adding timing didn't help anywhere really.

I'm a little bummed, wanted more out of it.
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Old 06-26-2016, 09:42 PM   #2802
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Thats not bad and nothing to be bummed about.
Let's see the plot, I have a couple theories
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Old 06-26-2016, 09:46 PM   #2803
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I might be able to get the plots tonight. Depends on if they got. emailed to Ed.

We played with VVT. VICS.

Spool also changed significantly since last fall.

I'll see if Ed has the files.
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Old 06-26-2016, 11:36 PM   #2804
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Don't think i will get the files until tomorrow.

I have all my notes, but none of the run files.

The tuner was really helpful on Eds car. We walked through everything, So I wasn't missing anything obvious. Changing timing didn't change power, and adding boost didn't either. It followed the 5* per 5psi rule pretty well. I barely had to touch the timing map I built. Anything we changed on it didn't make power.
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Old 06-27-2016, 08:35 PM   #2805
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Alright I have all the run files. I'll pick a couple out and post up screenshots.

Here is the link to all of them: https://drive.google.com/folderview?...1U&usp=sharing

Nvm. Can't get winpep to install at work. I'll try and get some screenshots up tonight.

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Old 06-27-2016, 08:47 PM   #2806
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Here you can see us adding boost and not gaining power. We actually lost power.

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Old 06-27-2016, 08:50 PM   #2807
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Added 2* in run 62. Very similar curve.

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Old 06-27-2016, 09:18 PM   #2808
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I snagged the files and loaded a comparison with mine at the same boost level. Looks pretty similar except apparently I have a bit more spool and top end.

I've forgotten what turbo this is?



--Ian
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Old 06-27-2016, 09:19 PM   #2809
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2871.

You are also running 100 octane right?
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Old 06-27-2016, 09:22 PM   #2810
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Quote:
Originally Posted by aidandj View Post
2871.

You are also running 100 octane right?
I am, yes. Were you guys ping-limited at 200 kpa, or did it make it to MBT? My car won't make it to MBT at 200 without the race gas.

-​-Ian
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Old 06-27-2016, 09:25 PM   #2811
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We weren't det limited. But we didn't make any more power with timing. I'll try and get my notes out when I get home
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Old 06-27-2016, 09:27 PM   #2812
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Quote:
Originally Posted by aidandj View Post
We weren't det limited. But we didn't make any more power with timing. I'll try and get my notes out when I get home
Looking forward to a post with the timing map, octane, and target AFRs posted along with your notes, all in one post.
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Old 06-27-2016, 09:31 PM   #2813
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Timing map was almost exactly what we went with. Like spot on. Adding timing didn't make power and pulling timing lost power. Posted like last page.

92 octane.

Target afr: 11.3-11.5

Somehow half the tune files didt save. I'm not sure why. So I have some here and there.
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Old 06-27-2016, 09:33 PM   #2814
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Quote:
Originally Posted by aidandj View Post
We weren't det limited. But we didn't make any more power with timing. I'll try and get my notes out when I get home
So yeah, you're at MBT then. If you'd pushed it further you'd see power start to drop off.

I'd expect a 2871 to make more top end though, and if it's not making any more power at higher boost then there's definitely something flow-limiting. Mine made another 40 hp by turning the boost up to 240. I haven't found the flow limit on mine yet, it's ping limited at 240 kpa+ even on straight 100.

What cat is in the car?

--Ian
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Old 06-27-2016, 09:34 PM   #2815
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Quote:
Originally Posted by aidandj View Post
Here you can see us adding boost and not gaining power. We actually lost power.

Quote:
Originally Posted by aidandj View Post
not bad.
it would likely pick up 50hp on e85

which intercooler and piping does he have again?
also we'll need to see vvt plots/logs as well as vics switchovers
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Old 06-27-2016, 09:38 PM   #2816
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No cat.

I think we just were too retarded. I wasn't comfortable adding timing at 240kpa. Mostly because the motor was following the 5* per 5psi rule almost to the T.

Ed will have to give detail about the piping.
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Old 06-27-2016, 09:39 PM   #2817
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Nvm that timing table is wrong. We were 6* at 240kpa.
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Old 06-27-2016, 09:41 PM   #2818
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Old 06-27-2016, 09:46 PM   #2819
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My OCD flips out when I see incompletely scaled rows (240-310)
But otherwise, solid/conservative table for this setup.
Can't wait to see this thing running at MRLS
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Old 06-27-2016, 09:55 PM   #2820
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We stopped making power after like 220kpa. So I didn't touch the ones above.

Here is wastegate tuning.

Run 54: Baseline.
Run 55: Go to 19* at 170kpa. No power gain
Run 56: Go back down to 15*. So -2 from baseline. Power lost.
Run 57: Add 1 from 4k-5k 2 from 5k-6300, 3 from 6700 up. Power Gained



Tuning Spark ~280hp.

Run 60: DC at 35%. No timing changes.
Run 62: Add 2* timing. Slight map changes but overall no power gained. Might have lost power



We messed around with fuel a bit more. Tried playing with VVT and VICS. But couldn't really make any big changes. At this point Ed was ready to get off.

I'd like to go back with e85 and see if it was choking for air, and where we can send the timing too.
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