Lol.....

Say no to crack

The logging and viewing on holley is fantastic

No filtering, give me a break

 

Compared to likes of Motec i2 or Syvecs/Life Racing log viewers....the Holley log viewing is ****.

 

I was about to say what is so different about these?



Then this:




Not saying Motec isn't great, but every Motec system I've seen costs more then my entire engine bay. Comparing Motec to to a <$1000 Holley box seems kinda silly, but I think the logging is just fine.

 

Please oh elightened one, i need examples


You didn't even think holley had filtering so you don't have a clue about it


2gb on boad, every single parameter logged, at chosen speed, that sucks

Lets get the can logger out

 

I didnt speculate as to whether it did or did not have filtering, I clearly said I did not know.

And you simply need to use the systems to appreciate the difference. Of course I will say I am not familiar with the Holley, but the few brief times I did look at it, it was nowhere near as intuitive or informative.

And 2gb is fantastic memory, I certainly wont argue there.....although as much as I do love logging it actually seems excessive when you can log loads of items even at 1000Hz if needed for hours...with much less memory.
But better having it than not having it. Memory is so cheap these days, there is little excuse for other systems not to have an abundance of it.

 

cmon guys keep on track with solving OP's issue, take the "best" EM wars to correct section

 

It's one of those things that will be incredibly difficult to diagnose remotely.

A few important things have been asked for that would be helpful to see how it is all performing.

 

Here's one I didn't see asked yet.

OP, how dirty is the inside of your intake manifold and how blued are your header primaries assuming you have tubular headers?
Perhaps there's such excessive backpressure you're seeing full exhaust reversion under load causing exhaust to flow back into the intake then sucked back into the chamber thus killing power despite more boost.
Since the normal stuff has been covered I'm jumping into the rare instances I've seen with turbo diesels lol

 

Inside of intake is perfectly clean, don't really see any color change in the header tubes

 

Reversion is definitely at play. Takes quite a while for intake discoloration due to presence of exhaust, but it is happening no doubt. I think I'd focus on figuring out that backpressure signal before diving any further into other diagnosis. Doesn't look like a raster rate issue to me.

 

I'm going back to the dyno today or Saturday, I'm going to yank some v bands off my downpipes and see what happens

 

Hi LMT, with your stated 24xe Crankshaft Target Wheel you should be ably to "log" each tooth, a total of 48 counts per cycle and to log the 1/2 moon Cam Target.
I would log at over 200 Hz Rate.
I would view the log with respect to cylinder's location, the number.
I would then be able to qualify EACH Cylinder's Acceleration Rate, a rate that should be EVEN.
I would be able to view the Cam 1/2 moon event AND BE SURE it is within a Crank Tooth, if NOT this could effect the Spark Instant

This is what I do with my ECU-882C, MUCH BETTER the using a Knock Sensor.

When you view miss-fire/ detonation, you will FIND the Crankshaft Acceleration Rate is LESS for the bad cylinder(s).

One other item, did you TDC the front pulley/verify the Spark Advance ?

Lance

 

I did verify timing on the balancer, it's within a degree which could easily be my setup. Are you talking about verifying cam timing?

 

it has been said several times that both spark and cam timing should be checked.

 

I did verify spark, cam timing may not be quite so easy. Have to pull a bunch of stuff apart. Went to dyno last night. Tried throwing timing at it, did nothing, pulled exhaust off at the downpipes and picked up over 200hp at the a same boost level. My downpipes are 3 inch which are also a bad restriction i believe. I guess my backpressure data is bs

 

Wow. I bet you are pretty happy to find those 200 ponies!

 

What was your exhaust setup?

 

I think it's still low on power, everyone thinks I should see around 1400. Maybe my 4l80 is eating some but I think my downpipes are the remainder of the problem. Exhaust is dual 3 inch downpipes( very tight bends off turbos) back behind motor merging into a single 4 inch out the back

 

Hi LMT, the best cam timing is Split Overlap, in most cases.

This IS an EASY Check, as you know the #1 & #6 pistons are "up"
One will be on firing, the other at overlap.

Thus an easy check of Rocker Arm Position by measurement.

Lance

 

the backpressure data was correct at time/location of measurement.

Obviously any measurement pre-turbine, has to include anything post turbine too.

So a restrictive post turbine will mean less energy to drive the turbo and more restriction. By removing the post turbine restriction, you've just made it much more efficient, and no doubt it's making the same boost target much easier now too ?

200hp is a good gain ! Could you move to larger downpipes etc ?