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Need opinion on a tune


vr4hotness
New Daddy
436/2000


Galant VR-4 org Post #: 1215793 posted 09/02/15 11:08 PM     Remind Me!  Send Private Message   Edit Post      
Need your opinion plz

Tuner said it was crappy 91 octane gas

I was getting really bad knock at 4k and above,
Look at the graph

Mods
E3turbo
880cc
Full bolt ons
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3g lifters
Multi layer head gasket
Aem tru boost
Ecmlink v3
Ets fmic


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GSTwithPSI
A hole
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Galant VR-4 org Post #: 1215806 posted 09/03/15 06:31 AM     Remind Me!  Send Private Message   Edit Post      
Output looks low for the boost level.

I need a log...Preferably one from the dyno pull. Any 3rd gear pull from ~3k to redline will work, though.



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CutlassJim
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912/1000


Galant VR-4 org Post #: 1215809 posted 09/03/15 07:43 AM     Remind Me!  Send Private Message   Edit Post      
And not hitting 18lbs until 4000 rpm? Either you have some mechanical issues or that's a poopy tune. I find it suspect too that the A/F ratio isn't also on the graph with the boost. Post a log please.



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OldHairyBastard
I take bottom on trannies


Galant VR-4 org Post #: 1215811 posted 09/03/15 07:57 AM     Remind Me!  Send Private Message   Edit Post      
Jim's right about the air fuel mixture. Without being able to see where your air fuel is in the RPM it will be hard to give good advice an the tune you have. I do find it a bit strange that your torque is that much higher than your HP. It would be nice to see where your timing is set to across the RPM range. What type of waste gate and exhaust do you have?



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1999 Toyota Camry 3.0L V6-200M
2008 Toyota Sequoia 5.7L V8-113M
2013 Toyota Tundra 5.7L V8-82M
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vr4hotness
New Daddy
436/2000


Galant VR-4 org Post #: 1215815 posted 09/03/15 08:23 AM     Remind Me!  Send Private Message   Edit Post      
I will try and get a log set up today, I've never done one on ecmlink before.


2.5inch exhaust and a evo3 wastegate



852/2000 (sold

436/1000 rust free



(Beer is living proof that god loves us and wants us to be happy)- Benjamin Franklin

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toybreaker Galant VR4.org Moderator
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Galant VR-4 org Post #: 1215822 posted 09/03/15 08:49 AM     Remind Me!  Send Private Message   Edit Post      
102 degrees Fahrenheit ambient air temperature is not optimal conditions to try and set up / optimize a tune.

... with no changes other than a drop in ambient temperature, I bet you find some missing ponies

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vr4hotness
New Daddy
436/2000


Galant VR-4 org Post #: 1215839 posted 09/03/15 10:45 AM     Remind Me!  Send Private Message   Edit Post      
Ya was super hot, but that a big loss in power across the band.


What values should I capture in the log ?



852/2000 (sold

436/1000 rust free



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OldHairyBastard
I take bottom on trannies


Galant VR-4 org Post #: 1215859 posted 09/03/15 12:55 PM     Remind Me!  Send Private Message   Edit Post      
With or without a CAT? Also what MASS/MAF are you using if any?

Quoting vr4hotness:

I will try and get a log set up today, I've never done one on ecmlink before.


2.5inch exhaust and a evo3 wastegate





1990 G-GSX-RS Conversion-138M
1999 Toyota Camry 3.0L V6-200M
2008 Toyota Sequoia 5.7L V8-113M
2013 Toyota Tundra 5.7L V8-82M
2017 VW Passat 1.8L Turbo-16M



Edited by OldHairyBastard (09/03/15 12:57 PM)

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r4pt0x
Member


Galant VR-4 org Post #: 1215862 posted 09/03/15 01:23 PM     Remind Me!  Send Private Message   Edit Post      
I have overpressure from ~1800rpm and easily >1bar at 3000rpm with an evo3 16g, stock Galant RS cams ('92 model) and a little over 9:1 CR (1.8l head). peak+hold boost is ~1.5-1.6 bar (~24psi). Only knock events are at ~2800-3000rpm which are mostly only harmonics from the engine missing its balance shafts.

Are you using any boost control or driving direct wastegate-pressure? Latter one could fit your very slow boost builtup.

Your torque is accordingly quite low, especially considering the cams which should get much more air into the cylinders (if timing is set up properly...).

What are the 880cc injectors for? You're planning on using E85? I was running on stock evo9 injectors (560cc) and they weren't even close to be maxed out... I only switched to 1000cc PTEs for E85 and later engine&turbo upgrades.


The logs should include: rpm, TPS, load, ignition, AFR map and WB02 and eventually boost, which is/should be (in kPa) roughly identical to the load value anyways and hence isn't terribly important unless your MAF scalings are way off...
If you use ECU-based boost control, wastegate-duty might also be interesting to clarify the slow boost built-up.

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vr4hotness
New Daddy
436/2000


Galant VR-4 org Post #: 1215867 posted 09/03/15 01:55 PM     Remind Me!  Send Private Message   Edit Post      
No cat

Evo8 maf sensor



852/2000 (sold

436/1000 rust free



(Beer is living proof that god loves us and wants us to be happy)- Benjamin Franklin

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EfiniX
Member ++
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Galant VR-4 org Post #: 1216029 posted 09/06/15 02:48 PM     Remind Me!  Send Private Message   Edit Post   
Quoting GSTwithPSI:

Output looks low for the boost level.

I need a log...Preferably one from the dyno pull. Any 3rd gear pull from ~3k to redline will work, though.




THIS

I would expect you closer to 280hp at that boost level. You must be running fairly low timing or something else is wonky...



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