The track in nebraska is like 3000 ft above sea level.
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08-12-2011
The track in nebraska is like 3000 ft above sea level.
______________________SMGPFC #99_______________________
08-12-2011
so, are you proving my point or what?Originally Posted by bluegtp91
08-12-2011
No...your saying you don't need to tune cars...and I'm saying that's wrong at any level because there is always room to improve on a stock tune.
08-12-2011
or you could have put a 3.4 pulley on, and left 16 degrees of timing... and been fine?
Again, mechanical issues are not the pcm's fault. Stock timing works well for unintercooled stuff..... Fueling not so much, but you can fix that a few ways without a pcm tune as well.
08-12-2011
I do understand that higher timing creates more heat...but as long as it's knock free and the injectors aren't maxing out IPW's I don't see the issue with running higher than stock timing. It helps the pull up top, where these cars lack regardless. I'm sure with no knock on 18*...and a 3.5"...a tenth of an inch wouldn't have made any difference really. Only reason I had a 3.5" was because it was a press-on and at the time I had no need for an MPS...since I didn't think, like everyone...that I was ever going to get this deep into modding this car. Could you run stock timing on a 3.4", knock free and be fine? Sure...could it be faster with a custom tune...very much so.
That's what I'm getting at.
08-12-2011
Ok, so what if it knocks when you try to run 17 degrees of timing? What happens if it knocks going from 10.8 to 11.0 afr?Sure...could it be faster with a custom tune...very much so.
The issue is you can get the edge mechanically with pulley... stock timing and on the edge boost makes more power than less boost and more timing in reality.
08-12-2011
i think im just going to get a 3800 performance... then in a few months i will buy hptuners and screw around with it.... i cant really afford the $500 right this second with other things i want to buy
08-12-2011
I can probably live tune it for less than 3800 performacne can mailorder you one for.
08-12-2011
yea but getting a day i can drive to Michigan isnt the easyest
08-12-2011
OP needs more patience.
______________________SMGPFC #99_______________________
08-12-2011
I slapped an intercooler and a pulley four sizes smaller and the tune wasn't far off at all.
08-12-2011
Timing>boost
08-12-2011
Always will be.
08-12-2011
Turns out the tune is SNAFU.
10.3 AFR at WOT?
08-12-2011
Which means you win.
And stock tunes fail...horribly.
08-14-2011
I hate all the BS the large vendors include with their 3.4" pulley PCM.
Fans on for 2 minutes after shutdown.
Raised shift points.
Fans always on under 40MPH.
Raised rev limiter.
08-14-2011
I like that stuff?
______________________SMGPFC #99_______________________
08-14-2011
Hopefully sarcasm?
08-14-2011
No? I benefit from all of those things except fans on under 40mph.
______________________SMGPFC #99_______________________
08-14-2011
I'm talking without valvetrain work. No benefit to the features I mentioned above.
Edit: Or if you find benefit, please tell.
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