and have hp tuners. i have a suggestion to try. since we don't have access to timing per gear. find peak torque on a dyno, be it 4800 or whatever. about 5-600 rpms after thise, start bringing the timing down, say .5 or 1 degree per 1k rpms after this.

why am i suggesting this? well, just a hunch actually. the engine itself doesn't need that much timing uptop to sustain it making power at a contiuing increase so to speak.

this might or might not show up as a loss on a dyno. that is not what is important here. it's a simple idea that works. you should see an increase in mph, why? car is making more power. why won't this show up on a dyno? not enough resistance. a dyno can only load a car so much.

go try this, i bet you might be suprised


this is your one freebee

 

intresting, how far did you back your car down timing wise. what kinda gains we talking about

 

i have always done this. it shows up as a loss on the dyno, but it shows up as a gain at the track.

every car is different so it's more or less an experiement to find out what it likes and what it does. there is a point of going too far.

 

so after peak tq lower timing a couple degrees and adjust from there eh.. i might use this next time out in the spring

 

mine from 5888 on up is dropped .5 of a degree per section.

detonation is not the reason why someone does this.

 

Your my favorite tuner. Just wish you were closer

 

I'm going to go sit in the corner and play with my fuel tables...

 

Where is K.C.?

 

lol

i knew that was comming.

did i lose ya with this one?!?!?


kc is kansas city missouri. or kansas, depending on which part you want to be in. same city.

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not everyone goes looking into the tuning section of the board. this is WHY i put it in the lsj tech section.

 

So by lowering the timing after peak tq, does it allow it to have a smoother more linear tq curve or something? I'm actually dyno tuning my car soon...gonna be my first time using a dyno to tune. Should be interesting

 

No, I got the theory. I have just not gotten around to driving around with my timing histos to see what does what. Once I get that down, I will have a better idea of what's going on. If timing was based on a VE table, I would be fine.

What is taking Paul so long with those 60s stats? I am dieing over here!!

 

it won't show up as a gain on a dyno due to the lack of the loading ability of said dyno.

a mustang dyno "might" be able to do it. it will actually increase power. hence the gain in mph up top. this also will most likely hurt the lower gears, IE 1st 2nd, but for some of us who have zero traction in those gears, it might help.


steve. smack em!!!

im sure i could give you a better explanation when i figure out what the hell im doing. hehehehe


timing is easy for me. go figure.

 

Mine is set up this way pretty much , took a lil more out though . 23* @ wot scaled back to 21 above 5K . Nice advice .

 

injector tables FTW! paul is kinda busy last i heard. although it doesnt matter to me right now since im waiting on new 60#s again damnit i want injectors that work so i can finally pulley the **** down

ok im gonna go do this timing trick and check my maf and load cells now.

 

Hey Bika. How come you have not volunteered to help me with my research on the 42s? You are still running 42s right?

Sorry to thread-jack, Bryan.

 

interesting idea.
ill be sure and make 2 different tunes 1 with this done, 1 without and try it.

 

yeah im back to running 42s again goddamn old ass 60s must have been clogged or soemthing

i didnt know you needed help with 42# research. let me know man. only problem is i dont have a w/b run through hpt, so i cant do VE tuning. but otherwise let me know what u need. i'll be on the 42s for a lil while until my next set of 60s come in.

 

Yea, if you click the red link in my sig, it explains the help I need. I wouldn't want you to do this without a WB or a dyno though. At least not until I can get a base MAF and VE that I know is good to go.

 

so basically your saying around the time when your car starts to drop off on torque, and increase HP (5252? ), you start to slowly back off the timing up to redline?

 

yeah i cant do VE. i have a good MAF tho. i probly put way too much effort into MAF.
when you get a VE done let me know. i'm down for whatever testing u need broh!

or i can just get off my ass and do the w/b o2 already. i am just really reluctant to hack my dash up for the gauge and make a mess of wires.

 

Yea, the problem is you've been tuning MAF with stage 2 fueling tables that are WAY off. That means your MAF will be hosed. I mean, I will send you the tune, if you want to give it a try and let me know how the MAF tuning goes with it. Just be careful.

Do you still have my email addy? I can't find yours. Send me an email. I will reply with the tune.

 

Can't you tune ve using stft and ltft's? I know it's not the best way to go, but couldn't you tune it using those parameters just for the time being?

 

anom. pretty much. second gear in my car doesn't put enough load on it to log it right {wheel spin} and it's hard to find a road that's not busy at 7 pm at night to try third. so im kinda hosed right now.

 

Well, yes you can, but if you saw the difference between the stage 2 fueling tables and the actual correct tables, you will see that the MAF will likely be pretty far off. Since the car goes OL at WOT you run the risk of running really rich or really lean there, and that could be dangerous. The only way around that would be to tune the CL portion of the tune untill it's dead nuts and use that data to extrapolate the rest using 3rd order polynomial equations. Anyone know how to do that?

And, really, we should be talking about this on my thread (see sig). We are jacking the hell out of Bryans very usefull thread. (Sorry again bro)

 

it's ok man, i just vented in the hpt thread.