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need someone to double check the build list



bluegtp91 said:
I had 18* in my 3.5" pulley car. Stock injectors. Pump gas with PEM's and a 3" DP.

It took it all day long and went 13.8x with just 1.84 rockers...stock everything else. Didn't knock. I'm sure it could have taken more. And I'm in KC...not much flatter than that...on average I think from 700-1000 feet.
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so, are you proving my point or what?
 
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.
 
bluegtp91 said:
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.
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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.
 
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.
 
Sure...could it be faster with a custom tune...very much so.
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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?

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.
 


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
 
05grndprix said:
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
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I can probably live tune it for less than 3800 performacne can mailorder you one for.
 


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.
 


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