996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Which boost on which rpm / gear on a 996TT X50 (stock)

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Old Jan 24, 2009 | 06:11 AM
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Which boost on which rpm / gear on a 996TT X50 (stock)

Hi guys,

I think I have a boost problem...
According the boost gauge, the car hits only 0.7-0.8 bar in the first two gears, after 6000rpm. The 0.9 bars I haven't seen for a long time now...

Does anyone know, which boost the car should reach per rpm / gear?

thx in advance,
R
 
Old Jan 24, 2009 | 06:17 AM
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If your stock, you should see .7 to .8bar by around 3000rpms or so. If you're flashed, you should see .9-1.2bar, (depending on flash) by about the same rpm. In both cases, it should hold to redline. If not, boost leak or wastegate problems?
 
Old Jan 24, 2009 | 11:03 AM
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Originally Posted by Rainman_II
Hi guys,

I think I have a boost problem...
According the boost gauge, the car hits only 0.7-0.8 bar in the first two gears, after 6000rpm. The 0.9 bars I haven't seen for a long time now...

Does anyone know, which boost the car should reach per rpm / gear?

thx in advance,
R

Normal..0.9 sometimes in 3rd, 4th or when cold outside
 
Old Jan 26, 2009 | 08:48 AM
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Hm...I have to check that...thx for the replies.
 
Old Jan 26, 2009 | 09:26 AM
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What is the normal value for a non X-50 car in a cold day?
 
Old Jan 26, 2009 | 03:04 PM
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a stock car should see .7, in colder weather it might go up .1 or so but not much more.
 
Old Jan 26, 2009 | 03:32 PM
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my car is stock and i've seen it hit 1.2bar. Is that normal? Sometimes when its cold out just before shifting it hits 1.2bar. Does that mean the car is flashed and I dont even know it? It doesn't seem very fast.. i can easily get spanked by most V8's and other 6cyl+ turbo cars..
 
Old Jan 27, 2009 | 02:27 AM
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@ split

if you see 1.2 bar the ecm is hardly stock. A stock tt should go to ~ 0.7 bar and a x50 to 0.8/0.9
Probably you're not only flashed...
 
Old Jan 27, 2009 | 05:12 AM
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my car has been doing 0.9 bar in 20-30 deg weather..
 
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