[zomski101]

Originally Posted by 335e92tx

Retards on Cyls 1 and 5 dont look good in higher gears. Is this thing using any oil? It might be getting some in those cyls. Id start with a compression check and expecially see if those cyls are out of range with the others.

Looks a little lean. But not bad. I would try to get load target in there along with actual.

Are these stock heatrange plugs?

Maybe try the v7 e30 map.

Car uses 1.5 quarts of oil every 5k miles. I just changed the valve cover w/ gasket and new bolts. There was a ton of oil in the spark plug well and a visible oil residue on the downpipe. Stock plugs, but I just purchased some NGK 95770 from fcp and will gap to .022. It'd be ashame if the engine would need work with only 72k.

[Jerain]

Hi guys,

If someone with knowledge has the time to look at these. I'm switching between V7 and V8 map sometimes, here's the logging. Mods in my signature. I'm mixing 1to3 pure 95% bio ethanol with 98RON fuel. My IAT is going high pretty fast isn't it?

The timing in V8 is higher, boost about the same. V8 feels a little stronger but sometimes a slight hesitation when pedal down. V8 also has a bit more timing pulls and throttle closures. V7 logs look cleaner?

V7:
https://datazap.me/u/jerain/v7-e25?log=0&data=3-20

V8:
https://datazap.me/u/jerain/v8-e30?log=0&data=3-20


2 More from today when it's a little bit colder outside, no throttle closures and timing pulls anymore on the V8 E30... Which one is making more power you think? I like it how with the V7 in 4th gear the boost begins at 18psi and almost stays there, car feels very fast being a lightweight manual coupe.

V7:
https://datazap.me/u/jerain/v71-e25-...og=0&data=3-21

V8:
https://datazap.me/u/jerain/v8-e30-1...og=0&data=3-21

[NoGuru]

My target boost and boost are off by as much as 3-4 PSI at a few spots. Is this normal?
https://datazap.me/u/noguru/review?log=0&data=3-5-13-22

[cristy7610]

Could anyone take a look on my log and tell me if my HPFP and LPFP looks good?
I have MHD stage 2+ and yesterday I heard a metallic noise when I started the engine...the sound comes before the engine starts, is like the starter make some noise or something related, or maybe my HPFP is on the way...
The engine runs very smooth and the power is there, but I have this noise and maybe someone here could tell me what is the problem.

https://datazap.me/u/cristy7610/mhd-...g=0&data=12-21

[335e92tx]

Originally Posted by NoGuru

My target boost and boost are off by as much as 3-4 PSI at a few spots. Is this normal?
https://datazap.me/u/noguru/review?log=0&data=3-5-13-22

A little larger delta than I would expect. Normally 1.5 to 1.8 psi is common in the upper ranges. It is also why you are a good bit below load targets. Try to check boost sels and vacuum hoses.

[335e92tx]

Originally Posted by Jerain

Hi guys,

If someone with knowledge has the time to look at these. I'm switching between V7 and V8 map sometimes, here's the logging. Mods in my signature. I'm mixing 1to3 pure 95% bio ethanol with 98RON fuel. My IAT is going high pretty fast isn't it?

The timing in V8 is higher, boost about the same. V8 feels a little stronger but sometimes a slight hesitation when pedal down. V8 also has a bit more timing pulls and throttle closures. V7 logs look cleaner?

V7:
https://datazap.me/u/jerain/v7-e25?log=0&data=3-20

V8:
https://datazap.me/u/jerain/v8-e30?log=0&data=3-20


2 More from today when it's a little bit colder outside, no throttle closures and timing pulls anymore on the V8 E30... Which one is making more power you think? I like it how with the V7 in 4th gear the boost begins at 18psi and almost stays there, car feels very fast being a lightweight manual coupe.

V7:
https://datazap.me/u/jerain/v71-e25-...og=0&data=3-21

V8:
https://datazap.me/u/jerain/v8-e30-1...og=0&data=3-21

It looks a little lean, I dont see short term trims logged..
You prob want to turn off timing for cyls 2-6.

[335e92tx]

Originally Posted by cristy7610

Could anyone take a look on my log and tell me if my HPFP and LPFP looks good?
I have MHD stage 2+ and yesterday I heard a metallic noise when I started the engine...the sound comes before the engine starts, is like the starter make some noise or something related, or maybe my HPFP is on the way...
The engine runs very smooth and the power is there, but I have this noise and maybe someone here could tell me what is the problem.

https://datazap.me/u/cristy7610/mhd-...g=0&data=12-21

eh, they dont look bad consistently, but they do drop a low on occasion. If it does goes too low consistently the trims will go to zero and it will go lean. I do see short term trims are 0 for a couple of events at the top of 4th.. near 5300

[cristy7610]

Originally Posted by 335e92tx

eh, they dont look bad consistently, but they do drop a low on occasion. If it does goes too low consistently the trims will go to zero and it will go lean. I do see short term trims are 0 for a couple of events at the top of 4th.. near 5300

Thank you for your time, mate!
So, what I have to change in the newer future?
-HPFP or LPFP with upgraded one stage 2.

[Jerain]

Originally Posted by 335e92tx

It looks a little lean, I dont see short term trims logged..
You prob want to turn off timing for cyls 2-6.

Can you explain this a bit more please?

[NoGuru]

Thanks Tex, will look for leaks this weekend.

[335e92tx]

Originally Posted by cristy7610

Thank you for your time, mate!
So, what I have to change in the newer future?
-HPFP or LPFP with upgraded one stage 2.

i would create another log. Maybe drop to 93 octane map and see if pump preasures change more than say 15 percent. That would tell me you are at fuel limits.

[335e92tx]

Originally Posted by Jerain

Can you explain this a bit more please?

There is timing retards and advance. The latter is not really as significant. You want timing corrections . The ones for timing cyl - crk* 2-6 you dont need, It will free up some log variable data . The max in 30 at one time and short term trims will add 2 back for both banks, And it would be nice to have the waste gate DC at least for one bank also.
i am not at a point i can do a screen shot too easy - at a campground in maine.. with my other 6cyl turbo.

[cristy7610]

Originally Posted by 335e92tx

i would create another log. Maybe drop to 93 octane map and see if pump preasures change more than say 15 percent. That would tell me you are at fuel limits.

This log is already on 93 oct...93 oct-98 Ron.

[Jerain]

Originally Posted by 335e92tx

There is timing retards and advance. The latter is not really as significant. You want timing corrections . The ones for timing cyl - crk* 2-6 you dont need, It will free up some log variable data . The max in 30 at one time and short term trims will add 2 back for both banks, And it would be nice to have the waste gate DC at least for one bank also.
i am not at a point i can do a screen shot too easy - at a campground in maine.. with my other 6cyl turbo.

Uh I can see the timing corrections for the 6 cylinders in my graph, in the last two there almost are none thats all...?
I wil change the timing crk to just log cylinder one and log wgdc.

[335e92tx]

Originally Posted by cristy7610

This log is already on 93 oct...93 oct-98 Ron.

I dont like how the low pump is already in the 60s on just fuel. If that happens up high the HP pump will be more likely to not have enough capacity and drop ... you have a few 900 lb readings on it. but they dont coincide. I would start with replacing the LP pump with just a stage 2 and see if that gets you some solid 70s. Then watch the HP pump close. If it still shows lower than 1200 i think it might be getting tired.. but they generally dont fail that way (progressive degradation), they just break.

[335e92tx]

Originally Posted by Jerain

Uh I can see the timing corrections for the 6 cylinders in my graph, in the last two there almost are none thats all...?
I wil change the timing crk to just log cylinder one and log wgdc.

see if you can try another fuel provider. And look for something different in a log.

[-JrHatch-]

So my car feels awesome at the top end, not making quite as much boost as it feel it should, maxes out at high 17psi when running mhd stage 2+ and I thought it should be higher.
My bigger concern however is my low end power, the car feels very laggy, if I go full throttle the rpms sit for a second or two and then start to climb and when it does it feels sluggish.

I noticed in my logs im at negative boost psi well into being on throttle and my low end PSI is well below target where as the top end is fine.

Let me know what you guys think,
Thanks

https://datazap.me/u/jhatch15/log-15...&data=2-3-5-23

[Jerain]

Originally Posted by 335e92tx

see if you can try another fuel provider. And look for something different in a log.

This is on Total RON98 mixed with 30% pure ethanol and I almost see no timing corrections in the last 2 graphs... Nevermind

[studio54]

Originally Posted by -JrHatch-

So my car feels awesome at the top end, not making quite as much boost as it feel it should, maxes out at high 17psi when running mhd stage 2+ and I thought it should be higher.
My bigger concern however is my low end power, the car feels very laggy, if I go full throttle the rpms sit for a second or two and then start to climb and when it does it feels sluggish.

I noticed in my logs im at negative boost psi well into being on throttle and my low end PSI is well below target where as the top end is fine.

Let me know what you guys think,
Thanks

https://datazap.me/u/jhatch15/log-15...&data=2-3-5-23

Hello,

i have the exact same feeling with stage 2+ map (i should try anothers maps like 1 or 1+ to check).

"Slow" spooling feeling, lag, kind of delay to make it really pull.

The psi being negative prior to throttle is normal, it's the vacuum. It's also normal to be under target during the initial spool, cause it takes a bit of time for turbo to spool it can be instant.

The thing i notice is that you have the WGDC bank drop, the spike down from 55% to 30% just prior/during WOT. I got it too, i don't know it's totally normal or not and if it has to do something with the lag. (i replaced boost solenoids and vacuum lines and still have it)

What's your exact setup ? intake, fmic, dp ...
Do you have wastegate rattle?

[cristy7610]

Originally Posted by 335e92tx

I dont like how the low pump is already in the 60s on just fuel. If that happens up high the HP pump will be more likely to not have enough capacity and drop ... you have a few 900 lb readings on it. but they dont coincide. I would start with replacing the LP pump with just a stage 2 and see if that gets you some solid 70s. Then watch the HP pump close. If it still shows lower than 1200 i think it might be getting tired.. but they generally dont fail that way (progressive degradation), they just break.

Thanks mate!! Definitely I'll upgrade LP .As you said, LP must be the culprit.

[-JrHatch-]

Originally Posted by studio54

Hello,

i have the exact same feeling with stage 2+ map (i should try anothers maps like 1 or 1+ to check).

"Slow" spooling feeling, lag, kind of delay to make it really pull.

The psi being negative prior to throttle is normal, it's the vacuum. It's also normal to be under target during the initial spool, cause it takes a bit of time for turbo to spool it can be instant.

The thing i notice is that you have the WGDC bank drop, the spike down from 55% to 30% just prior/during WOT. I got it too, i don't know it's totally normal or not and if it has to do something with the lag. (i replaced boost solenoids and vacuum lines and still have it)


What's your exact setup ? intake, fmic, dp ...
Do you have wastegate rattle?

Thanks for the feedback, Im FBO with
VRSF 5in stepped intercooler
Raceland Catless downpipes
DCI
VRSF Charge pipe with Tial Blow off

I have done Walnut blast, spark plugs, coils (not trying to fix the issue just had done them recently) and my turbos were replaced under warenty about 60k miles ago, havent noticed any waste gate rattle

[studio54]

Originally Posted by -JrHatch-

Thanks for the feedback, Im FBO with
VRSF 5in stepped intercooler
Raceland Catless downpipes
DCI
VRSF Charge pipe with Tial Blow off

I have done Walnut blast, spark plugs, coils (not trying to fix the issue just had done them recently) and my turbos were replaced under warenty about 60k miles ago, havent noticed any waste gate rattle

Ok, on mine (also 6sp manual from 2007, 7.1 stage 2+ and same fuel oct 93) :

Forge FMIC
Wagner catless DP
DCI
ER charge pipe & Forge DVs

I haven't noticed waste gate rattle on mine aswell.

Replaced boost solenoids (yesterday) & vacuum lines (silicone veracious), no changes in the lag feeling.

Your spooling time to hit 15.6PSI : 1.81 second & 640 rpm
(from 2375rpm)

My log : https://datazap.me/u/studio54/log-15...og=0&data=3-23

My spooling time to hit 15.4PSI : 1.47 second & 661 rpm
(from 2687rpm)

I would like to know what are the standard times for healthy oem turbos on N54.

You should spool faster in seconds too if you started from 2600, so it looks like we have similar results. And we have the same WGDC drop that occurs. I didn't find any explanation yet.

Next steps for me would be checking IC couplers, and maybe trying adjusting rear wastegate arm to see if it helps in spooling.

Do you always felt this lag? i think it has been always present on mine since tuned i has way more power top end but lag feeling in the low rpm initial spool, i will try to flash stage 0 to test someday.