Anyone heard of GT Pro?

[MustGoFaster]

1,000,000!!!!!!!!!

[tpunx99GSX]

Shane won! lol JK
Tuning had to be rescheduled to today due to the tuner being sick.
So the voting is still open.

[tpunx99GSX]

Well it was lower then what i was expecting. But there were a couple reasons...
1)DSMLink kept bugging out where the log would pause at around 5-6k rpms, and would pause until he let off the gas. Not sure what could be causing this so if anyone has heard of this please assist.
2) We were getting 3 different readings from the wideband, My AEM Uego was reading one thing, The DSMLink was showing another (using the same wideband) and the dyno wide band was showing something different as well. so we picked the dsmlink one and tuned using that.
3) The head being non ported was choking out the turbo and not flowing enough. (Will be dropping my old RRE head to him for more porting, new valves etc.)
4) We are using the crappiest gas on earth, California 91 Emmissions control gas.

So on to the numbers.
We started off the night turning the boost way down to 15 psi and put down 245.44 AWHP and 214 Tq
After turning up the boost to 24 PSI and leaning the pig out and working with timing etc....
the final numbers of the night were... (drum roll please)



333.68 AWHP and 293.33 Tq. (way too many threes in there.)


p.s we didnt have time to do the Race Gas tune. Im gonna get the above mencioned taken care of then we will tune for that.

[JET]

You weren't out flowing the stock head, that is bullshit. The stock head will start to hold you back about 450whp on a dynojet. Why were you trying to run 24 psi on 91 octane? 21 psi should be about right. Are you running meth?

I am sure there is some sort of conversion factor in DSMlink to calibrate it to your wideband. I don't know if I would trust him if he was telling you the head was holding you back, there is obviously something else wrong.

[Super Bleeder!!]

Non-ported head holding you back = LAWLZ.

Anyone who tells you info like that just wants your money.

[tpunx99GSX]

Originally Posted by JET

You weren't out flowing the stock head, that is bullshit. The stock head will start to hold you back about 450whp on a dynojet. Why were you trying to run 24 psi on 91 octane? 21 psi should be about right. Are you running meth?

I am sure there is some sort of conversion factor in DSMlink to calibrate it to your wideband. I don't know if I would trust him if he was telling you the head was holding you back, there is obviously something else wrong.

Ill post the logs and the dyno sheet tomorrow.
Well we were running rich as fuck so we kept turning the boost up to try and get that to lean out. plus try and get it up to at least 350.
The DSMLink bugging out really pissed me off. Nothing like getting up to 6k rpm knock usually appears and find out that dsmlink flat out just dies.

[Matt D.]

Originally Posted by tpunx99GSX

Well we were running rich as fuck so we kept turning the boost up to try and get that to lean out.

Because boost is the only adjustment you have that can lean it out, right?

[A//// Guy]

I was close.

[niterydr]

Originally Posted by tpunx99GSX

Well it was lower then what i was expecting. But there were a couple reasons...
1)DSMLink kept bugging out where the log would pause at around 5-6k rpms, and would pause until he let off the gas. Not sure what could be causing this so if anyone has heard of this please assist.
2) We were getting 3 different readings from the wideband, My AEM Uego was reading one thing, The DSMLink was showing another (using the same wideband) and the dyno wide band was showing something different as well. so we picked the dsmlink one and tuned using that.
3) The head being non ported was choking out the turbo and not flowing enough. (Will be dropping my old RRE head to him for more porting, new valves etc.)
4) We are using the crappiest gas on earth, California 91 Emmissions control gas.

So on to the numbers.
We started off the night turning the boost way down to 15 psi and put down 245.44 AWHP and 214 Tq
After turning up the boost to 24 PSI and leaning the pig out and working with timing etc....
the final numbers of the night were... (drum roll please)



333.68 AWHP and 293.33 Tq. (way too many threes in there.)


p.s we didnt have time to do the Race Gas tune. Im gonna get the above mencioned taken care of then we will tune for that.

1)Common, usually re-booting the computer fixes that (labtop).

2)They don't trust their own dyno wideband? Where was it plumbed? That is scary news.

The dsmlink reading would probably be the most off as that is calibrated off your aftermarket wideband and then fed into the dsmlink.

You should beable to lean out 950's enough on dsmlink, but if the wideband was off, etc..if you are curious tom, send me your tune file/log sales@lseperformance.com and I will look at it tonight at the shop.

3)Thats bullshit. I highly doubt the head is holding you back at this point (as Jet stated). I mean it would help, but lets address the rest of the vehicle first, send me that log so I can take a peak at it, get you some constructive input.

4)91 sucks, but it isn't impossible to tune on.

Oh and adding boost would add airflow signal which would ADD fuel if your mas still had reading.

Fundamental property of a mas based system, again scary information...

[Shane@DBPerformance]

Hahaha. Man, you need go somewhere else and maybe check the car over. I guess the final numbers aren't totally out of the question bad though, even though I have seen numbers like that with 50-trim turbos at 18psi on a Dynojet.

But Josh hit everything on the head.

#1 sounds like a laptop problem.

#2 He should have used the dyno sensor. The one in DSMLink would be the most likely to be wrong, since you get resistance that effects the readings across the wire from the gauge to the ECU and you normally have the calibrate it to read right in the ECU to match the gauge.

#3 You don't have to port any DSM head 1G or 2G to make all kinds of power. It is more likely to see a DSM with a ported head make less power. I thought you had a Pruven Performance head on it though?

#4 We do 91 all the time here. BP doesn't sell better than 91 here anymore. And I do a lot of cars from WI and IA that can't find anything better than 91 from any gas stations near them. I personally probably wouldn't have tried 24psi on 91 if it really is bad at all out there. 24psi is pretty damn high for 93 octane.


Turning up the boost on a DSM does not lean it out. It makes it richer!!!! The only time it should lean it out is when the fuel pump, injectors, or MAS start maxing out. There are a good 3 ways to lean out a car with DSMLink. If fuel trims seemed ok at part throttle, but it went stupid rich under boost and changing the main table wasn't helping enough, then you have a boost leak.

[tpunx99GSX]

Thats the other thing i forgot about. He said the MAS was likely causing some problems as well.
He was able to use the main table to lean it out but we just werent making crap for power at the lower boost. I attached my log. sorry all i have is the screwed up ones, but this is the run when it did the "max" Power.
The bug has happened on two different laptops, the last laptop i had which was when i was at a different company.
The current laptop is a Dell Latitude D510 with 1.25 gig of ram.

[niterydr]

Originally Posted by ecoli

Hahaha. Man, you need go somewhere else and maybe check the car over. I guess the final numbers aren't totally out of the question bad though, even though I have seen numbers like that with 50-trim turbos at 18psi on a Dynojet.

But Josh hit everything on the head.

#1 sounds like a laptop problem.

#2 He should have used the dyno sensor. The one in DSMLink would be the most likely to be wrong, since you get resistance that effects the readings across the wire from the gauge to the ECU and you normally have the calibrate it to read right in the ECU to match the gauge.

#3 You don't have to port any DSM head 1G or 2G to make all kinds of power. It is more likely to see a DSM with a ported head make less power. I thought you had a Pruven Performance head on it though?

#4 We do 91 all the time here. BP doesn't sell better than 91 here anymore. And I do a lot of cars from WI and IA that can't find anything better than 91 from any gas stations near them. I personally probably wouldn't have tried 24psi on 91 if it really is bad at all out there. 24psi is pretty damn high for 93 octane.


Turning up the boost on a DSM does not lean it out. It makes it richer!!!! The only time it should lean it out is when the fuel pump, injectors, or MAS start maxing out. There are a good 3 ways to lean out a car with DSMLink. If fuel trims seemed ok at part throttle, but it went stupid rich under boost and changing the main table wasn't helping enough, then you have a boost leak.

Usually you beat me to these threads

[Matt D.]

Beating a dead horse here, but GT who? Should have went to RRE.

[Shane@DBPerformance]

I don't think RRE even has a dyno.

[Matt D.]

Originally Posted by ecoli

I don't think RRE even has a dyno.

Well, where ever Scott Gray spends his time and/or whoever the Mueller folks are.

[carltalon]

Not bad Power for 91 I could never get anything out of my 61 till I switched to E-85

If the tuner is using the airflow sliders to try to change your W.O.T. A.F.R. you need to find a different tuner. The airflow sliders should only be used to compensate for a hacked maf or adjust part throttle A.F.R. Your coolant temps are pretty hight you should get a lower temp thermostat and turn your fans on all the time.

Timing looks pretty good for 91 probly just lean it out with the FUEL sliders and add boost.