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

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Old Dec 6, 2010 | 10:28 AM
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Mafless

Hello,
Did someone try to run mafless 996tt?
Thanks.
 
Old Dec 6, 2010 | 11:18 AM
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Originally Posted by Tony@epl
We have done a few cars this way...but really do not recommend it.

Despite what other way say, there is zero support for speed density in the dme. Do to the lack of airflow calculation (load) you are more or less tuning timing alpha-n and letting the wideband "fix" fuel.
Thank you Tony,the choice of the Ford maf or Hitachi solution is more efficient than the stock one on modded cars?
 
Old Dec 6, 2010 | 02:25 PM
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Originally Posted by autodynamics
Hello,
Did someone try to run mafless 996tt?
Thanks.
There is a mafless Protomotive car running around Houston now that is really strong. Went for a ride in it last week. From what I gathered Todd is looking to do this setup with a few more cars in the near future.
 
Old Dec 6, 2010 | 04:07 PM
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Originally Posted by bmoores
There is a mafless Protomotive car running around Houston now that is really strong. Went for a ride in it last week. From what I gathered Todd is looking to do this setup with a few more cars in the near future.

Listen to Tony, even if cars run strong with this, there is no substitute load value for the ECU when the MAF signal is absent.
 
Old Dec 6, 2010 | 04:12 PM
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There are pros and cons for both and it truly depends on what your goals are for your car.
I hope this helps
Robert
Protomotive 1200 HP
 

Last edited by robmd99; Dec 6, 2010 at 04:15 PM.
Old Dec 6, 2010 | 04:16 PM
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We tried on mine and found no benefit ... the blow thru works well on my car...
As Tony said, not a good idea....
just my .02
markski
 
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Old Dec 6, 2010 | 04:32 PM
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Originally Posted by robmd99
There are pros and cons for both and it truly depends on what your goals are for your car.
I hope this helps
Robert
Protomotive 1200 HP
Is that bhp or whp?
 
Old Dec 6, 2010 | 06:38 PM
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Originally Posted by Shotcaller
Is that bhp or whp?
Whp he put down something in the 1160range on Todd k's conservative dyno
 
Old Dec 6, 2010 | 06:53 PM
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Originally Posted by OS Inspector
Whp he put down something in the 1160range on Todd k's conservative dyno

I believe that was a 5th gear run and rwd.

Im running mafless and no problems so far.
 
Old Dec 6, 2010 | 06:55 PM
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todd uses a dynapak , as for as i know and read they(dynapaks) are far from conservative.
 
Old Dec 6, 2010 | 06:56 PM
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Originally Posted by unvmy996
todd uses a dynapak , as for as i know and read they(dynapaks) are far from conservative.
Yup...hub dyno's. They arre great for tuning though.
 
Old Dec 6, 2010 | 07:01 PM
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Correct jags, what boost did you put down 1350 with ?
 
Old Dec 6, 2010 | 07:04 PM
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Originally Posted by OS Inspector
Correct jags, what boost did you put down 1350 with ?
2 bar and I put down 1109 at all four wheels.
 
Old Dec 6, 2010 | 07:58 PM
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Originally Posted by OS Inspector
Whp he put down something in the 1160range on Todd k's conservative dyno
I think he ment to say that Todd is very conservative when it comes to tuning cars and not the Dyno. He never pushes your car just to get a large number.
Robert
 
Old Dec 6, 2010 | 09:16 PM
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Originally Posted by Tony@epl
We have done a few cars this way...but really do not recommend it.

Despite what other way say, there is zero support for speed density in the dme. Do to the lack of airflow calculation (load) you are more or less tuning timing alpha-n and letting the wideband "fix" fuel.
Well said
 
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