Hptuners Log data translation help required !

[2boosted]

Hi guys,

I'm needing some help in translating some data from a yesterday pass log I made from my truck.

I attached 2 pics that show the data on the verge of changing gear, 1st to 2nd and 2nd to 3rd.

I commanded in my tune to make the gear change at 6000 rpm. Thing is 1-2 gear change always comes at 5500 +/_

Also I'm running pump gas, so what do you think about timing? will upping some timing help me go faster?
I have a low timing cause I am always afraid from one batch of fuel to another in the gas station.

The IAT water injection system seems to be working right. From 67C at idle it lowers the iat temp in 1st gear to 54C and in 2nd gear is about 39C IAT temp.

The MAP2 reading, I can't understand how much full boost I am hitting at high gear...I am targeting 8 psi with a turbosmart manual boost controller but is a guessing job, just hearing clicks and test. Am I close to my target psi?

Thanks in advance for all the help guys.

[kerrige]

Can you please post screen shots of your shift tables?

[2boosted]

Can you please post screen shots of your shift tables?

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yes sure....as soon as get to my laptop I''ll post pics.

any tab in particular?

[George C]

for shifts

mph and rpm both have to be met in order to make a shift true....if rpm isnt being met then compare shift mph vs actual mph.. raise mph till it matches the rpm



with 8 psi you can easily get away with 1degree of timing deduct per psi...so figure what your motor NA would normally see and start removing timing from there. on 8psi you can run 20* timing easily with a AFR of 12.0

[farmtruc]

dont forget compression ratio has to do with timing as well. if you see hints of KR dont push it with pump fuel

[kerrige]

dont forget compression ratio has to do with timing as well. if you see hints of KR dont push it with pump fuel

This.^^^ I generally start adding timing a little bit at a time until I start to see even slight KR. I then remove some to stay safe. Timing will help build more power. This is coming from a tuning newb by comparison to these other guys. I might be a little over my head.

[2boosted]

Can you please post screen shots of your shift tables?

for shifts

mph and rpm both have to be met in order to make a shift true....if rpm isnt being met then compare shift mph vs actual mph.. raise mph till it matches the rpm

Here you go guys,

Looking at my mph vs rpm, mph are much lower, but on both cases, so according to that, shifting will ocour at whatever is first, mph or rpm.

Only 1 to 2 is going like that, 2-3 is going by rpm even tho the mph are lower !!!!????


Now, to resume, getting some more timing will make my truck faster at the same boost level?

And what is my boost level??? I see 157 kpa, how that translate to real world psi.

Remember I'm trying to target 8 psi.

[kerrige]

First thing I would try is raising the mph for the shift I am wondering if the tps vs rpm vs shift table is off somehow. In theory yes adding timing will increase your power at the same boost level as long as you get no KR. No a gauruntee, but yes in theory you should. 157kpa on a basic converter translates to almost 23psi but you need to Factor in ambient kpa which should be about 105. You are in fact just barely north of 8lbs maybe 8.1

[George C]

set the mph/rpm to correspond to eachother!!!

in HPtuners there is a conversion tool up top. in there it will translate KPA to psi, just remember 1 bar is 105 kpa=14.5 psi

i like to use the correct amount of timing per boost level in any platform

something to start doing is looking at the plugs for the mark on the strap. Also switch over to a cooler plug
the lightning is currently on BR7ef plugs at 16psi
the silverado is using Br8 at 18psi

Here you go guys,

Looking at my mph vs rpm, mph are much lower, but on both cases, so according to that, shifting will ocour at whatever is first, mph or rpm.

Only 1 to 2 is going like that, 2-3 is going by rpm even tho the mph are lower !!!!????


Now, to resume, getting some more timing will make my truck faster at the same boost level?

And what is my boost level??? I see 157 kpa, how that translate to real world psi.

Remember I'm trying to target 8 psi.

[farmtruc]

No need to shift at a higher rpm if your truck isn't making power up top.
Put the truck on the dyno, hp is probably peaking at 5300--5400rpms, which is typical.
Truck is loosing boost up top because the system can't flow.
I'm always for all the rpm you can turn an engine, but not when it's lacking power.

I think I had several dreams about this already, lol.