Suggestions on base tuning for pte 50 trim??

[amlos]

Well, I just finished my installation month, mostly at least. I just installed a pte 50 trim, extremepsi fmic, 680cc injectors, 2g maf, hks bov, kyb agx/eibach pro kit, aeromotive sx fpr, hks tt, and apexi safc2 and I am tired.... Anyway, I'm looking forward to extracting some power out of it but want suggestions for my base tuning. Any information anyone wishes to bestow on me would be greatly appreciated. Anyone have a similar setup? Thanks!

 

[jdmawd]

Set your fuel pressure at 38 psi. A good place to start on the safc is -18 across the board on the high and low table. Set boost to 15-17 psi and Buy a logger. Now began to tune the car. When you are done you should be at around 22-24 psi with a knock count of no more then 3-5 counts.

This is assuming you have a health well running motor. No boost leaks proper base timing,and proper tuning tools.


EDIT: base timing should be 4* if you plan to run more then 23 psi on unleaded fuel.

 

[amlos]

Thanks for the info . I forgot to mention that I have a pocket logger. We've been tuning the car all night with 43psi on the afpr and ~18 on the turbo (lowest it will go) and had some problems with high knock count and very little timing retard. On our crappy 91 octane we were getting 20 counts of knock with only -15 on the afc high and -10 low above ~4000 rpm. We think it's from the maf voltage being too low for the computer to properly detect load so we lowered the fuel pressure a little while ago and have yet to test it out. Do you think we were right? I'll try your suggestions and see how they work out. Thanks again

EDIT: Any suggestions on what throttle points to set the high and low on the afc?

 

[sqhopeful]

not much help, but I have read several places to the Hi/Lo at 80%/30% that is where I have mine. I really just wanted to subscribe to this thread, I should have my 50trim in a moth or two.

KC

 

[NOSLO2PT0]

why should base timing be set at 4*? Mine is set at 5-6* and I run a LOT more boost on pump gas than that. Is that bad?

 

[jdmawd]

Originally posted by NOSLO2PT0
why should base timing be set at 4*? Mine is set at 5-6* and I run a LOT more boost on pump gas than that. Is that bad?

I have found that when running 24-25 Psi on pump the ECU will advance timing to much. I was seeing over 24* of advance which was causing 14+ counts of knock at the top of 3rd and 4th.

Once I lowered base timing to 4* down from 5-6, I no longer had that problem. You run a LOT more boost on pump then 23 psi congratulations.

 

[NOSLO2PT0]

The ECU will actually retard timing when you turn up the boost. More boost = more airflow, which in turn makes the ECU retard timing. Only way to get that timing back up is to lean the mixture out via AFC. Well, doesn't make a lot of sense to lean a car out when you run more boost, usually you have to richen it up.

I've ran 23psi on pump before, and had 0 knock. I've also ran 26psi on pump as well, with 0 knock. I think you just need to set the timing back to stock (5*) and learn how to tune better.


It still kills me how people with no performance #'s to speak of, still give other people advice on how to tune. How the hell do they know that what they are doing is right???

Amlos: listen to someone that's done that, been there, like me. If you need any specific tuning questions answered, PM me.

Mike

 

[jdmawd]

Originally posted by NOSLO2PT0
The ECU will actually retard timing when you turn up the boost. More boost = more airflow, which in turn makes the ECU retard timing. Only way to get that timing back up is to lean the mixture out via AFC. Well, doesn't make a lot of sense to lean a car out when you run more boost, usually you have to richen it up.

I've ran 23psi on pump before, and had 0 knock. I've also ran 26psi on pump as well, with 0 knock. I think you just need to set the timing back to stock (5*) and learn how to tune better.


It still kills me how people with no performance #'s to speak of, still give other people advice on how to tune. How the hell do they know that what they are doing is right???

Amlos: listen to someone that's done that, been there, like me. If you need any specific tuning questions answered, PM me.

Mike

You are one arrogant pain in that ass Aren't you? A lower base timing will result in lower total timing advance, At any given rpm and boost level.

It still kills me how someone on the other side of a computer can determine what someone has and has not done. I apologize if I don't post every time I wipe my ass on dsmtuners. congratulations for posting your life story.

How the hell do they know that what they are doing is right???

That's true you don't, I tune my car with data from my logger and wide band. I run 25 psi everyday with 3-5 counts of knock purposely tuned in. im not sure exactly how performance number are relevant to tuning. I can only guess this is your way of blowing you're own horn.

In regard to our last discussion when you suggested that I tune my car to 12:1 a/f and see how it runs. It runs awesome go have a Cooke for you accomplishments.

 

[jdmawd]

Originally posted by NOSLO2PT0
I've also ran 26psi on pump as well, with 0 knock. I think you just need to set the timing back to stock (5*) and learn how to tune better.

Originally posted by NOSLO2PT0
That would be 26psi on pump gas I had a touch of knock in 4th gear, nothing in 3rd. The knock was a little more than I would have liked to see. I believe I got up to about 10-12 knock sum and my timing dipped down to about 15-16 degrees in 4th gear.

:laugh: you cant even lie right get out of here with you're bullshit. Are we supposed to crown you the pump gas grand wizard now because you ran 11 seconds on pump gas go grab another cookie for your trouble.

 

[NOSLO2PT0]

Here in the real world of tuning and racing, we like to measure our abilities by timeslips. That means we measure our performance against the equipment we have on the car. If the car doesn't perform as well as the equipment installed should make it, then that usually either means, mechanical malfunction somewhere, or driver/tuning error.

We will assume everything on your car works ok. Now, how about taking that car out and getting some timeslips to back it up? If you run a good time (that's in accordance to avg. 50 trim times), then I'll leave you alone. However, on more than 1 occasion, you have been proven to be a very persistant tool.

All I'm suggesting to you is this.... go get some performance #'s to SHOW that you know what the hell you are doing, then I will start to respect your tuning advice that you give. Because running 20psi on a dinky turbo with 3-5 counts of knock is fine. Get the most out of the motor. But when you get into the land of bigger turbos and higher boost (such as 25psi and 50 trim) you sure as hell don't want ANY knock unless you want to rebuild the motor very soon.

And yes, for now, I am very high and mighty on my perch. When you can run mid 11's on pump gas, I'll gladly allow you to sit next to me on my perch

 

[NOSLO2PT0]

It's called TUNING runs. The run with 26psi and NO knock, the car went 11.69@107 (due to letting off before the finish line) so i took out a touch more fuel. Next run was 11.50@119. The 2% of fuel I took out resulted in some knock in 4th gear.

Us real racers like to actually SEE/MEASURE how our changes in tuning affect the performance of the car, and not rely on our ASS to do that. And yes, I have a BIG plate of cookies to choose from. When you do something nobody else has done, then you can gloat as well.

I won't include the nut-swinging you did with Extreme Turbo only to have it fail miserably on ya. I'm sure lots of people did that too. J/K

 

[jdmawd]

Originally posted by NOSLO2PT0
Here in the real world of tuning and racing, we like to measure our abilities by timeslips.

You are as stupid as you are arrogant. So let me get the right. In you're stupid little dsm bubble you call reality. tuning is only validated by a time slip:laugh: So I guess Dre is an idiot because he has gone what 11.7 but has tuned has car to over 460whp on pump gas.

I guess SW is an idiot to if he does not go out and run an 8 flat in his supra, because he dyno tuned it to over 1000 Hp. Are you a complete moron. time slips have shit to do with properly tuning your car.

All I'm suggesting to you is this.... go get some performance #'s to SHOW that you know what the hell you are doing, then I will start to respect your tuning advice that you give. Because running 20psi on a dinky turbo with 3-5 counts of knock is fine.

:laughu. I could careless if I get keyboard respect from you, but I know to some people the respect is more important right Dominic:laugh:

But when you get into the land of bigger turbos and higher boost (such as 25psi and 50 trim) you sure as hell don't want ANY knock unless you want to rebuild the motor very soon.

i run that now IDIOT

Dude seriously get a clue your arguments are pretty damn stupid.

 

[NOSLO2PT0]

I hope your motor lasts longer than your Mutt turbo did.

 

[jdmawd]

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[jltcat]

Cant we all just get along?

 

[TwoLiterV8Eater]

JDMAWD: Do you have either dyno plots OR timeslips to back up your supposed great tuning? If not I suggest you lay off on the insults to the people like NOSLO2PT0 that actually DO have timeslips. You mentioning Dre was rather amusing also, because he DOES have dyno plots to back up his HP numbers, and i would damn sure take a tuning tip from him rather than someone like you that has nothing to offer but insults.

 

[jdmawd]

Originally posted by TwoLiterV8Eater
JDMAWD: Do you have either dyno plots OR timeslips to back up your supposed great tuning?

amlos asked for base tuning suggestions,and i gave him that. If you dont like it oh well

 

[TwoLiterV8Eater]

"Don't give any technical advice unless you have first-hand experience on the subject."

Maybe that quote should be changed to "Don't give technical advice unless you have GOOD, PROVEN, first hand experiance on the subject"

This quote from you alone is enough to make me think you have no clue what you are really doing.

"I tune my car with data from my logger and wide band. I run 25 psi everyday with 3-5 counts of knock purposely tuned in. im not sure exactly how performance number are relevant to tuning.

There is no reason to PURPOSELY tune for some knock. that is rediculous. If you can't see how a good performance number is relative to good tuning, maybe you should step away from the DSM, buy a commuter car leave it stock.

 

[jdmawd]

There is no reason to PURPOSELY tune for some knock. that is rediculous

:laugh:

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That is some hilarious shit right there.