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528HP 491TQ.... BUT have you ever seen a graph like this!?!

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Old 10-23-2009, 05:19 PM
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whats going on with your kpa values? 85kpa under boost?
Old 10-23-2009, 09:01 PM
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Are you clutch or a4..wonder if it could be slipping clutch or slipping auto trans? Would think it should pull to 6500 or so.
Old 10-23-2009, 09:24 PM
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Originally Posted by MY99TAWS6
Are you clutch or a4..wonder if it could be slipping clutch or slipping auto trans? Would think it should pull to 6500 or so.
its an auto and it is slipping a little but not that much, mainly right after it shifts and it doesn't shift on the dyno....
Old 10-23-2009, 09:29 PM
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Originally Posted by Jditlfm
whats going on with your kpa values? 85kpa under boost?
I guess im not understanding your question..... ?????

my KPA values will be a little different because i am running 317 heads at around 8.5 compression..... not stock heads and compression
Old 10-23-2009, 09:33 PM
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What is the turbo rated for airflow max?
Old 10-23-2009, 09:34 PM
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Originally Posted by edcmat-l1
If it ain't valve float, it's blowin out the spark. What's the plug gap? Did you crank up the coil dwell any?

no i didn't mess with coil dwell.....

I am gonna try switching to tr7's tomorrow and see how it runs (on the street, cant afford to dyno again for a while)

MSD pug wires should be here soon also...
Old 10-23-2009, 09:46 PM
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I think you have to delete your map sae pid in your scanner and insert 2bar map. You need to delete normal maf sae pid and map sae pid.

So does i sound like its breaking up at the higher rpms..??normal tr8 might foul out in normal driving. any machine gun or other misfiring noise..
I think tr7 will be lots or tr7ix .You can run the iridiums colder heat ranges without fouling. .028 to .030 should fire that boost level pretty easily if things are ok with your coils and wire and the plugs are not fouling out. Have you looked at any of the tr8s?
I was planning to go to tr8ix in my car next year if go to around 15psi or so max. Been running autolite 103 at .028 no problems and many run them to high boost like 15,18 ,they also don't foul out that easy.
Too cold might be your problem.
Old 10-23-2009, 10:14 PM
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Originally Posted by MY99TAWS6
I think you have to delete your map sae pid in your scanner and insert 2bar map. You need to delete normal maf sae pid and map sae pid.

So does i sound like its breaking up at the higher rpms..??normal tr8 might foul out in normal driving. any machine gun or other misfiring noise..
I think tr7 will be lots or tr7ix .You can run the iridiums colder heat ranges without fouling. .028 to .030 should fire that boost level pretty easily if things are ok with your coils and wire and the plugs are not fouling out. Have you looked at any of the tr8s?
I was planning to go to tr8ix in my car next year if go to around 15psi or so max. Been running autolite 103 at .028 no problems and many run them to high boost like 15,18 ,they also don't foul out that easy.
Too cold might be your problem.
ya with the PID thing... my pcm is the shitty 98 so i have to do it a little different. but i am loggin all the way up to 210kpa... not sure what he's getting at with the 85kpa deal, im confused lol.

i mean yes i can hear a difference in the motor in the upper rpms but not
real bad... i can deffinetly feel a difference in the pull though.

i will be able to tell if its the plugs when i pull them tomorrow and install the 7's.
Old 10-24-2009, 12:38 AM
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Its just the way it is set up. in log hpl 4 you kpa values are different in from your chart display and your table display. I was reading your chart display values which say 85kpa but in your table its 170's... I think its just the way its setup
Old 10-24-2009, 03:42 AM
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Originally Posted by Jditlfm
Its just the way it is set up. in log hpl 4 you kpa values are different in from your chart display and your table display. I was reading your chart display values which say 85kpa but in your table its 170's... I think its just the way its setup
thats wierd.... my computer is showing the same on the chart and table....

IDK, someone else check the log file and see if they match up.....
Old 10-24-2009, 09:34 AM
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ive not looked at the file..no hpt on my desktop ill load it in a bit though....im assuming you are using the 2 bar custom os....and it didnt fry your pcm....im wanting to upgrade to it but have heard mixed reviews...haha
Old 10-24-2009, 10:52 PM
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3000 - 43KPA, 47*, 1.00 lambda, IAT 66
3200 - 88KPA, 33*, 1.02 lambda, IAT 66
3500 - 91KPA, 32*, 0.91 lambda, IAT 66
4000 - 97KPA, 28*, 0.87 lambda, IAT 66
4300 - 101KPA, 26*, 0.86 lambda, IAT 66
4500 - 110KPA, 22*, 0.78 lambda, IAT 66

4600 - 120KPA, 22*, 0.78 lambda, IAT 66
5000 - 146KPA, 22*, 0.75 lamdba, IAT 66
5200 - 160KPA, 22*, 0.75 lambda, IAT 66
5400 - 171KPA, 22*, 0.75 lambda, IAT 66
5500 - 167KPA, 22*, 0.77 lambda, IAT 66
5600 - 179KPA, 22*, 0.78 lambda, IAT 66
5700 - 177KPA, 21*, 0.78 lambda, IAT 68
5800 - 176KPA, 21*, 0.77 lambda, IAT 72
5900 - 179KPA, 21*, 0.76 lambda, IAT 73
6000 - 175KPA, 21*, 0.76 lambda, IAT 75
6100 - 171KPA, 21*, 0.75 lambda, IAT 79
6200 - 164KPA, 21*, 0.75 lambda, IAT 81
6300 - 157KPA, 21*, 0.74 lambda, IAT 81
6400 - 174KPA, 21*, 0.74 lambda, IAT 84

IDK, figured i would write everything out so it was easier to compare to the dyno graph...... instead of off the log file....

I got the second walbro set in today.... I still have to wire the hobbs pressure switch and relay.

My MSD plugs also showed up today and i went and bought some autolite 103's.....

I will try to get everything installed and see if fixes it tomorrow....
Old 10-24-2009, 10:58 PM
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had a ta witrh similar graph showed no kr on dyno but did with a predator hand held changed knock sensors picked up 60 horse on dyno .
Old 10-24-2009, 11:16 PM
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whats your trim on your turbo it migh be the right volume or size but not making optimum but past 5500 rpms might need a higher trim number
Old 10-24-2009, 11:19 PM
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Originally Posted by edunegan
had a ta witrh similar graph showed no kr on dyno but did with a predator hand held changed knock sensors picked up 60 horse on dyno .
I logged the runs in HPtuners and nothing shows up for KR, I am aslo getting my commanded timing during the run....
Old 10-24-2009, 11:21 PM
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Originally Posted by z28lt1rocket
whats your trim on your turbo it migh be the right volume or size but not making optimum but past 5500 rpms might need a higher trim number
Master Power T70/.96AR, should be good for more than 530hp on a 5.3 I would think
Old 10-25-2009, 06:36 AM
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What are the comments about the post #5 from Tony Mamo???

Christian
Old 10-25-2009, 07:21 AM
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way too small of a turbo.

USually peaks around low 500ish.
Old 10-25-2009, 10:50 AM
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Originally Posted by toretto
way too small of a turbo.

USually peaks around low 500ish.
I thought the MP t70 would make more than 500hp... and though it would push a reliably up to 16psi.
Old 10-25-2009, 10:52 AM
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Hmm thought read they could do low 600s rwhp.And why can't you also run it higher boost like 18 to 20psi?

Be curious to see if the plugs and wires help the problem.


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