Td5 nanocom readings and boost adjust

[muddymatt]

Hi all,
I got my nanocom this week and after turning off the annoying auto locking and single point entry I went for a drive and got these readings.... first three pics
all these are peak figures.


So I adjusted the waste gate a couple of turns until I got to this.. last pic

By my maths, I have gone from 125.34 kpa to 137.93
or 18.17 to 20.00 psi

Can anyone take a look at the other readings and let me know if they are in the normal range?
the injector numbers show a bit of variation and I don't know what a good or bad reading for waste gate modulation is.

Thanks:)

[sierrafery]

An air flow readibg would have been good too... the cylinder roughnesses are not the best especially if it was at idle... also at that high idle speed error i presume it's remapped

[muddymatt]

An air flow readibg would have been good too... the cylinder roughnesses are not the best especially if it was at idle... also at that high idle speed error i presume it's remapped

I did look at air flow, I was too slow to photo it.
idle was 55 is with peak of 600 from memory.
cylinders are within 2 or 3 points at idle.
the photo shows peak readings after a full throttle, full boost run.

It's not remapped as far as I know. nnn ecu tho.
what ecu program code should it have?

[bsperka]

I did look at air flow, I was too slow to photo it.
idle was 55 is with peak of 600 from memory.
cylinders are within 2 or 3 points at idle.
the photo shows peak readings after a full throttle, full boost run.

It's not remapped as far as I know. nnn ecu tho.
what ecu program code should it have?

Why didn't / don't you write it to file and view it with td5 viewer / editor (can't remember the program bame right now ) ?

[muddymatt]

Why didn't / don't you write it to file and view it with td5 viewer / editor (can't remember the program bame right now ) ?

haha cos I couldn't find a spare SD card!

[bsperka]

haha cos I couldn't find a spare SD card!

I've used one of my mp3 sd music cards that's in the ashtray before so yeah sometimes a spare card isn't around.

[CU55TM Disco]

228Kpa, thats 33 PSI! Ive never seen mine about aprox 120Kpa...

Balances are a bit rough, never seen over 6.

[muddymatt]

228Kpa, thats 33 PSI! Ive never seen mine about aprox 120Kpa...

Balances are a bit rough, never seen over 6.

I understood the manifold pressure reading to be absolute. ie atmospheric pressure plus boost pressure. that's why I subtracted the atmospheric pressure in my calculations.
is that correct?

what are typical cylinder balance readings?

[CU55TM Disco]

I've only seen as high as 6 as a cylinder balance figure. I Spose as the engine ages more, the figures increase to compensate for wear and tear.

Maybe u wanna put a mechanical boost gauge on ur truck just to confirm what boosts ur getting, I was under the impression that there was a boost cut at 20psi. But u may have a boost box or similar.

Like I said, I've only seen 120 odd on my own nanocom, but maybe the displays can be configured a different way?

[sierrafery]

I understood the manifold pressure reading to be absolute. ie atmospheric pressure plus boost pressure. that's why I subtracted the atmospheric pressure in my calculations.
is that correct?

what are typical cylinder balance readings?
Yes, correct cos MAP = Boost + AAP, anyway, those readings are dependant on some electronic factors too also the so called "turbo pressure" displayed by nanocom is calculated by it's software not some real thing, IMO for boost the only 100% accurate thing is a pressure gauge

the best for cylinder roughness is to be between +/- 4.

[discorevy]

Have a look at your cylinder balances at or near idle and see what they are then

[muddymatt]

Yes, correct cos MAP = Boost + AAP, anyway, those readings are dependant on some electronic factors too also the so called "turbo pressure" displayed by nanocom is calculated by it's software not some real thing, IMO for boost the only 100% accurate thing is a pressure gauge

the best for cylinder roughness is to be between +/- 4.

Is that cylinder roughness an idle reading or taken at full noise?

[sierrafery]

At idle cos it's hard to find a pattern at different revs

[muddymatt]

Have a look at your cylinder balances at or near idle and see what they are then

I will check again at idle and report back.
thanks

[patchyfaun]

Hi all,
I got my nanocom this week and after turning off the annoying auto locking and single point entry I went for a drive and got these readings.... first three pics
all these are peak figures.


So I adjusted the waste gate a couple of turns until I got to this.. last pic

By my maths, I have gone from 125.34 kpa to 137.93
or 18.17 to 20.00 psi

Can anyone take a look at the other readings and let me know if they are in the normal range?
the injector numbers show a bit of variation and I don't know what a good or bad reading for waste gate modulation is.

Thanks:)

just wondering after doing ur mods, how many threads where left on the wastegate arm? just trying to tweak mine but don't wanna go to far... (ive got a boost box too)