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

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Old Dec 27, 2008 | 09:49 PM
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I had these questions for quite sometimes, can anyone please educate me… again?

If two TTs having everything equal except for the size of the turbo (one bigger and one smaller); both are hitting 1.0 bar. Are they generating the same number of HP?

If two TTs having everything equal except for the piping (one has bigger boost hose, headers, ICs, exhaust…). If both are hitting 1.0 bar; are they generating the same number of HP? I believe the answer for this one is No. A good example is the output of water is much less from the same faucet using a smaller diameter garden hose than a bigger one.

If a high HP TT (800+ hp) and a lower HP TT, both are hitting 1.5 bars; are they putting the same stress to the engine?

Why can we run higher bar with higher octane gas?

Thanks.
 
Old Dec 27, 2008 | 10:16 PM
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Originally Posted by MY996TT
I had these questions for quite sometimes, can anyone please educate me… again?

If two TTs having everything equal except for the size of the turbo (one bigger and one smaller); both are hitting 1.0 bar. Are they generating the same number of HP?

If two TTs having everything equal except for the piping (one has bigger boost hose, headers, ICs, exhaust…). If both are hitting 1.0 bar; are they generating the same number of HP? I believe the answer for this one is No. A good example is the output of water is much less from the same faucet using a smaller diameter garden hose than a bigger one.

If a high HP TT (800+ hp) and a lower HP TT, both are hitting 1.5 bars; are they putting the same stress to the engine?

Why can we run higher bar with higher octane gas?

Thanks.
1) No

2) No, but probably not for the reasons you believe.

3) Depends on the build.

4) As octane goes up so does detonation resistance. Boost increase heat, if octane isn't high enough, detonation will occur.
 

Last edited by cjv; Dec 27, 2008 at 10:23 PM.
Old Sep 10, 2018 | 09:12 AM
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Those temps and pressure levels seem to be pretty much what I see on my turbo S.

I've added 1 QT of oil for 4000 miles.
 
Old Sep 19, 2018 | 11:30 AM
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Originally Posted by Paul Rathjen
Those temps and pressure levels seem to be pretty much what I see on my turbo S.

I've added 1 QT of oil for 4000 miles.

holy 10 year bump thread revival batman....


trying to get your post count up?
 
Old Sep 22, 2018 | 09:51 PM
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Originally Posted by lennon31987
holy 10 year bump thread revival batman....


Trying to get your post count up?
 



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