17psi...in first gear!!! :)
11-20-2006, 11:41 AM
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Drive-by provocation guy
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17psi...in first gear!!! :)
Yep, gotta love the cold air 
Was about 45-50 degrees here so I got on it a little this morning. With the few cold days we get down here I think everyone with a turbo'd car goes out to drive when ever they can when it's cold.
So I run 18-19psi and was just curious to see how much boost I could build in first gear with the cold air and right at redline I saw 17psi.
Was about 45-50 degrees here so I got on it a little this morning. With the few cold days we get down here I think everyone with a turbo'd car goes out to drive when ever they can when it's cold.
So I run 18-19psi and was just curious to see how much boost I could build in first gear with the cold air and right at redline I saw 17psi.
11-20-2006, 01:37 PM
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15psi here in 40 degree weather yesterday! Got 16 in 4th and I normally have it set at 15 so I may need to dial it down a bit. Of course I'm going to change the oil tonight and put it in winter storage tomorrow. 
11-20-2006, 02:04 PM
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Originally Posted by Zero10
17psi at redline....
I want your car
I get 5
I want your car
I get 5
Even when stock setup and no MAF and in the cold I could get 15, when I was running 18 like I am now.
11-20-2006, 02:05 PM
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Originally Posted by SD Porsche Fan
15psi here in 40 degree weather yesterday! Got 16 in 4th and I normally have it set at 15 so I may need to dial it down a bit. Of course I'm going to change the oil tonight and put it in winter storage tomorrow.
Colder air is denser; turbo and IC run more effeciently with colder intake air and colder air flowing over them.
11-20-2006, 03:27 PM
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Well, IIRC you can run 1 additional psi for every 15 degree drop in intake temps and not need to make any a/f changes or octane etc.
So if they are like -50 below, that is possible?????????????
So if they are like -50 below, that is possible?????????????
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11-20-2006, 03:41 PM
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Originally Posted by special tool
Wow - great thread.
I just burned down the Sawmill Parkway - I was getting 29 psi in 4th at redline (7000)
It IS cold today..........
I just burned down the Sawmill Parkway - I was getting 29 psi in 4th at redline (7000)
It IS cold today..........
Well, you run 25psi right? So your getting about 4 more from the cold?
11-20-2006, 03:48 PM
#11
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LOL!
No, I wouldn't even tell someone that joking, because they might not know any better and try it!
I ran 24-25 on my old car, I actually ran 30psi once to see what would happen...
This new one is still sitting in the driveway waiting for lots of work to be accomplished on it.
No, I wouldn't even tell someone that joking, because they might not know any better and try it!
I ran 24-25 on my old car, I actually ran 30psi once to see what would happen...
This new one is still sitting in the driveway waiting for lots of work to be accomplished on it.
11-20-2006, 04:04 PM
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When you were running 24-25, was that daily driver and/or you car at those levels on a steady basis? or just a once in a while thing
11-20-2006, 04:08 PM
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Originally Posted by toddk911
Are you serious????
Well, you run 25psi right? So your getting about 4 more from the cold?
Well, you run 25psi right? So your getting about 4 more from the cold?
Totally serious.
Been running 28 costantly for almost 4000 miles now - just to break in the new turbo.
11-20-2006, 05:03 PM
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Originally Posted by toddk911
When you were running 24-25, was that daily driver and/or you car at those levels on a steady basis? or just a once in a while thing
11-20-2006, 05:07 PM
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I guess if we all had unlimted supplies of Xylene we would also
Well, I guess not with stock head/studs though....right?
What is most you run with pump?
Well, I guess not with stock head/studs though....right?
What is most you run with pump?