check out my log. new turbo (evo3 16G)

Korndogg · Jul 17, 2005

hey guys
i put my evo3 16G on last weekend, with 580's and a 190lph. (more details in profile)
i gave it the 500 recommended miles with minimal boosting, which i hit tonight

so, i of course brought it up to 19PSI (where i want it for now) tonight and started tuning a bit.

first of all, i adjusted my low-throttle by adding the STFT and LTFT and bringing them to zero. i was surprized to see that i ended up having to put my low-throttle settings at -9 all the way across the board on my safc2. doesn't that seem fairly rich for 580's?

anywho, this is the log i ended up with tonight. i'm still running a bit rich. i'll work on it a bit more tommorrow.

RPM(rpm).............SPARKADV(deg)....O2S11 (V).......SHRTFT11(%)
3248..........................14.5..........................0.96..........................0
3328..........................9..........................0.98..........................0
3436..........................4.5..........................0.98..........................0
3564..........................2.5..........................0.98..........................0
3716..........................4.5..........................0.98..........................0
3836..........................5.5..........................0.98..........................0
4008..........................7..........................0.98..........................0
4144..........................7..........................0.98..........................0
4280..........................6.5..........................0.98..........................0
4432..........................7..........................0.98..........................0
4608..........................7.5..........................0.98..........................0
4732..........................8.5..........................0.98..........................0
4872..........................8.5..........................0.98..........................0
5032..........................9..........................0.98..........................0
5172..........................9..........................0.98..........................0
5316..........................9..........................0.98..........................0
5460..........................9.5..........................0.96..........................0
5556..........................12..........................0.98..........................0
5712..........................13..........................0.96..........................0
5852..........................14.5..........................0.96..........................0
5972..........................15.5..........................0.98..........................0
6112..........................16..........................0.96..........................0
6232..........................16..........................0.96..........................0
6356..........................16..........................0.96..........................0
6472..........................16..........................0.96..........................0
6564..........................16..........................0.96..........................0
6676..........................17..........................0.96..........................0
6784..........................17..........................0.96..........................0
6892..........................17..........................0.96..........................0
6980..........................18.5..........................0.96..........................0

the car doesn't feel especially fast until almost 5000rpm, at which point it takes off very well. i suppose this is my timing, which should be brought up a bit once i'm leaner?

my safc hi-throttle settings are as follows
1000 -15
1600 -15
2200 -15
2800 -16
3400 -16
4000 -17
4600 -17
5200 -16
5800 -16
6400 -15
7000 -15

just thought i'd share. any input on the fact that my car boggs until 5k rpm? (full boost around 3k or so) i'm thinking it'll get better when i lean it up a bit

thanks guys

spyderturbo007 · Jul 18, 2005

As long as your FT's are around 0% you are ok on the low throttle settings. FT's are dependant on a lot of things like: PCV valve, VC vents, MAS issues, intake leaks, etc.

You might want to replace your PCV valve and check for leaks. My low throttle setting for my 650's are around -14%.

Ok, on to your log. I see by your profile that you are at 19psi, is this still the case?

What was your peak airflow during the run? You timing is consistently increasing during the run, but the ECU should be shooting for over 20 of timing advance. I an guessing on that because I don't know your peak airflow, by I highly doubt that you are over 2.1g/rev.

I am guessing that you are at full boost around 3500rpm, is that the case? You timing drops too low when you reach full spool.

To give you an example here is a log that I did the other day (it still has some issues but it freakin' rained all weekend

and I didn't get to do anything else with it).

You must be logged in to view this image or video.

What gap are you running on your plugs? At my airflow level assumption, you should have them gapped around 0.028.

Did you step down a temperature level with the new turbo? You should be running bpr7es instead of the stock bpr6es.

Wow, that was fun..... :thumb:

I really have less information than I need to help you, but those are some good things to check.

Let us know!

CanadianTSi · Jul 18, 2005

Your rich until 6k, try leaning it out some.

Also who told you not to boost a new turbo for 500 miles :confused:

Korndogg · Jul 18, 2005

hey
thanks for the input guys

spyder - yes, 19PSI. sorry. and i actually hit that by 3200rpm or so (yeah, i was noticing my timing there too... not sure on that one)

i was considering running a cooler plug. what does that help exactly? is the intake temp still hotter with the evo even though i have a fmic now? just curious.

i'm going to go lean it out a bit and see what that does

and canadiantsi.. i'm not sure, i've seen it around a couple of times and figured what the hell is 500miles to extend the life of my turbo? *shrug* i can try to find it if you're real curious

thanks guys

Korndogg · Jul 18, 2005

hey guys
log is looking a bit better, but the car doesn't seem to be running that much faster

i must say so far i'm somewhat disappointed. it's faster than my T25, but it's not amazing. i should find a dyno around here and see what i'm putting down.

also, my safc2 is reporting 1990hz max air flow after several runs... doesn't this seem low?

i'm wondering because i have a 2.5" exhaust..

let me know what you guys think

thanks

CanadianTSi · Jul 18, 2005

I was seeing right around 2000hz in my AWD when trapping 110mph with my Evo 3...

Korndogg · Jul 18, 2005

hm, cool

thanks a lot for that info

much appreciated

Burnett03 · Jul 18, 2005

Korndogg said:
hey guys
log is looking a bit better, but the car doesn't seem to be running that much faster

i must say so far i'm somewhat disappointed. it's faster than my T25, but it's not amazing. i should find a dyno around here and see what i'm putting down.

also, my safc2 is reporting 1990hz max air flow after several runs... doesn't this seem low?

i'm wondering because i have a 2.5" exhaust..

let me know what you guys think

thanks

your afc will show lower HZ numbers because you are leaning out the car to compensate for injectors.. Leaning out VIA safc lowers the HZ number the ecu sees

Korndogg · Jul 18, 2005

the safc isn't smart enough to know what it's taking away in the first place? i figured that the hz that i was viewing was the unmodified signal (input to the safc) and then it modifies it and sends it back to the ECU.

why would you want to know what hz you are telling the ECU? why doesn't it make sense to see the actual frequency?

*shrug*

maybe i'm crazy

spyderturbo007 · Jul 19, 2005

Korndogg said:
i was considering running a cooler plug. what does that help exactly? is the intake temp still hotter with the evo even though i have a fmic now? just curious.

Definately go with a colder plug. Basically all that means is that the plug dissipates heat faster than a hotter plug. And we all know that less heat in the combustion chamber = less chance of knock!

Korndogg said:
i'm going to go lean it out a bit and see what that does

Might want to get that low timing issue resolved first. If you can take care of that and get the timing curve looking good, I would just turn up the boost since you have all the supporting mods.

Korndogg said:
is the intake temp still hotter with the evo even though i have a fmic now? just curious.

The IAT sensor on your car reads IAT before the turbo/intercooling/etc. So the world may never know

. Actually, the larger the turbo, the more efficient it is at producing boost. Remember psi=heat.....airflow=power. The EVO III 16g coupled with the FMIC should give you a lower intake charge temp than you had with the SMIC and the T25.

What was your peak airflow, as read from the logger in lbs/min, during that run?

Also, make sure you take car of that plug gap.......at higher airflow, you can actually blow out the spark. Normally results in a nasty hesitation.

Korndogg · Jul 19, 2005

hey
about turning up the boost....
i was told by another member on the board that 20psi = safe, but at about 23 you are running a risk of "lifting the head" and blowing the HG with the stock head studs.

what do you think of that?

this is my daily driver.. i can't be blowing out my HG or anything...

thanks for all of the info!

spyderturbo007 · Jul 19, 2005

There are different "theories" associated with what is required to lift the head. Most of what I hear is around the 23 - 24 psi range, but I have also heard others speaking in terms of airflow (or more accurately air mass) and not psi.

I have never read any concrete evidence associated with either, so I really can't comment.

You could always drop in some ARP head studs.

Korndogg · Jul 19, 2005

hey spyder
i didn't notice before...
you have an e3 16g and you're only puting down 240hp? why is that? what PSI was that at?

let me know.. very curious

spyderturbo007 · Jul 20, 2005

That was at 17psi.

I am still on the SMIC, stock cat back & stock UICP LOL

! which I'm sure is killing me.

I should be close to 290-300 CHP using the assumption that 1lb/min airflow = 10hp. I am getting, before the SAFC correction about 30.6lbs/min.

I just seem to have this "thing" against replacing the cat back. I just don't like the noise/look associated with an aftermarket.

As far as the SMIC, I am planning on installing a single nozzle water injection and an UICP next month. I am also going to remove the 8" section of the exhaust directly after the cat and replace it with a larger diameter pipe. I noticed that the exhaust necks down pretty hard at that section and I wanted to open it up.

I am planning on having it dynoed after all that is installed and see where I'm at.

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check out my log. new turbo (evo3 16G)

Korndogg

spyderturbo007

CanadianTSi

Korndogg

Korndogg

CanadianTSi

Korndogg

Burnett03

Korndogg

spyderturbo007

Korndogg

spyderturbo007

Korndogg

spyderturbo007

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