Dyno results 997 4s tiptronic on Maha Dyno...
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Dyno results 997 4s tiptronic on Maha Dyno...
I made a dyno test for my car on a mama dyno and i was disappointed because my car made around 330-336 hp on the motor and the car have
- softronic ECU
- headers x51
- 200 cel cats
- PSE exhaust
- IPD plenum
- BMC filter
After that i saw in the dyno i call a friend that have the same car but stock 100%
and the results was the some 336-340 hp ....
I am trying to find what is going on because this is crazy to put all this things in the car and don't have any increase in the power...all the people that i spoke the tell me that the program of softronic is the problem (that is no good..)because all the other things that i have put in the car are the most right and tested that everyone that he want to increase a little the power of the car put them (headers,cuts,plenum...).
I am thinking to put again the stock program and made a dyno test again to see what will see....
What is you opinion?
- softronic ECU
- headers x51
- 200 cel cats
- PSE exhaust
- IPD plenum
- BMC filter
After that i saw in the dyno i call a friend that have the same car but stock 100%
and the results was the some 336-340 hp ....
I am trying to find what is going on because this is crazy to put all this things in the car and don't have any increase in the power...all the people that i spoke the tell me that the program of softronic is the problem (that is no good..)because all the other things that i have put in the car are the most right and tested that everyone that he want to increase a little the power of the car put them (headers,cuts,plenum...).
I am thinking to put again the stock program and made a dyno test again to see what will see....
What is you opinion?
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Joined: May 2008
Posts: 562
From: CT
Rep Power: 103
I made a dyno test for my car on a mama dyno and i was disappointed because my car made around 330-336 hp on the motor and the car have
- softronic ECU
- headers x51
- 200 cel cats
- PSE exhaust
- IPD plenum
- BMC filter
After that i saw in the dyno i call a friend that have the same car but stock 100%
and the results was the some 336-340 hp ....
I am trying to find what is going on because this is crazy to put all this things in the car and don't have any increase in the power...all the people that i spoke the tell me that the program of softronic is the problem (that is no good..)because all the other things that i have put in the car are the most right and tested that everyone that he want to increase a little the power of the car put them (headers,cuts,plenum...).
I am thinking to put again the stock program and made a dyno test again to see what will see....
What is you opinion?
- softronic ECU
- headers x51
- 200 cel cats
- PSE exhaust
- IPD plenum
- BMC filter
After that i saw in the dyno i call a friend that have the same car but stock 100%
and the results was the some 336-340 hp ....
I am trying to find what is going on because this is crazy to put all this things in the car and don't have any increase in the power...all the people that i spoke the tell me that the program of softronic is the problem (that is no good..)because all the other things that i have put in the car are the most right and tested that everyone that he want to increase a little the power of the car put them (headers,cuts,plenum...).
I am thinking to put again the stock program and made a dyno test again to see what will see....
What is you opinion?
I would like to mention that the car was originally flashed in 2009 and many things can change in almost 6 years. When you dyno a car you should use it as a reference and not as an end result. The car if you wanted to check for gains should be run as all stock first. Then you could make your modifications and run it to check for gains or losses. I would recommend it for each mod in general if possible and under the same conditions as they can skew the results. Running a 997 on a dyno with the deck lid open or closed will make a considerable difference in your results as an example.
I recently had a GT3 that was making less power than a stock one should have on the same dyno. When flashed it improved yet not to where it should be. The first thought was it made less powered so it must have been the software. What it was , was a couple of mods that were not allowing the car to run properly. These were removed and the car then ran with the increase power stock and tuned. So in this case with the original and tuned file it couldn't perform as required. This is not to say mods are no good yet other issues affect how the car will perform.
Other items will also affect the car such as age and maintenance. Putting the Original file in would not correctly check the base running of the car as a whole at this point. Should that even show no change it still would beg the question why is the car then still lower in HP than your friends? and with those mods? It wouldn't as a base run of your car as all stock on that dyno would be more informative. Another question is has the car been to the Dealer in the last 6 years? Perhaps they updated the file.
Best,
Scott
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Softronic - Porsche Performance Software Tuning
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Cayman | Boxster | 911 | Cayenne
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Softronic - Porsche Performance Software Tuning
Faster than a speeding bullet.
Cayman | Boxster | 911 | Cayenne
Many 24HRS Daytona Winners programmed by Softronic! along with 1 lap of America and more.
Porsche Interseries programmed ,World Challenge,PCA,IMSA and others in an exclusive with Softronic..
Porsche PCA racing binary check by Softronic for compliance.
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Hello Ilias,
I would like to mention that the car was originally flashed in 2009 and many things can change in almost 6 years. When you dyno a car you should use it as a reference and not as an end result. The car if you wanted to check for gains should be run as all stock first. Then you could make your modifications and run it to check for gains or losses. I would recommend it for each mod in general if possible and under the same conditions as they can skew the results. Running a 997 on a dyno with the deck lid open or closed will make a considerable difference in your results as an example.
I recently had a GT3 that was making less power than a stock one should have on the same dyno. When flashed it improved yet not to where it should be. The first thought was it made less powered so it must have been the software. What it was , was a couple of mods that were not allowing the car to run properly. These were removed and the car then ran with the increase power stock and tuned. So in this case with the original and tuned file it couldn't perform as required. This is not to say mods are no good yet other issues affect how the car will perform.
Other items will also affect the car such as age and maintenance. Putting the Original file in would not correctly check the base running of the car as a whole at this point. Should that even show no change it still would beg the question why is the car then still lower in HP than your friends? and with those mods? It wouldn't as a base run of your car as all stock on that dyno would be more informative. Another question is has the car been to the Dealer in the last 6 years? Perhaps they updated the file.
Best,
Scott
I would like to mention that the car was originally flashed in 2009 and many things can change in almost 6 years. When you dyno a car you should use it as a reference and not as an end result. The car if you wanted to check for gains should be run as all stock first. Then you could make your modifications and run it to check for gains or losses. I would recommend it for each mod in general if possible and under the same conditions as they can skew the results. Running a 997 on a dyno with the deck lid open or closed will make a considerable difference in your results as an example.
I recently had a GT3 that was making less power than a stock one should have on the same dyno. When flashed it improved yet not to where it should be. The first thought was it made less powered so it must have been the software. What it was , was a couple of mods that were not allowing the car to run properly. These were removed and the car then ran with the increase power stock and tuned. So in this case with the original and tuned file it couldn't perform as required. This is not to say mods are no good yet other issues affect how the car will perform.
Other items will also affect the car such as age and maintenance. Putting the Original file in would not correctly check the base running of the car as a whole at this point. Should that even show no change it still would beg the question why is the car then still lower in HP than your friends? and with those mods? It wouldn't as a base run of your car as all stock on that dyno would be more informative. Another question is has the car been to the Dealer in the last 6 years? Perhaps they updated the file.
Best,
Scott
Scott knows his stuff and have only had excellent experiences with his tunes!
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Registered User
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From: Greece
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Hello Ilias,
I would like to mention that the car was originally flashed in 2009 and many things can change in almost 6 years. When you dyno a car you should use it as a reference and not as an end result. The car if you wanted to check for gains should be run as all stock first. Then you could make your modifications and run it to check for gains or losses. I would recommend it for each mod in general if possible and under the same conditions as they can skew the results. Running a 997 on a dyno with the deck lid open or closed will make a considerable difference in your results as an example.
I recently had a GT3 that was making less power than a stock one should have on the same dyno. When flashed it improved yet not to where it should be. The first thought was it made less powered so it must have been the software. What it was , was a couple of mods that were not allowing the car to run properly. These were removed and the car then ran with the increase power stock and tuned. So in this case with the original and tuned file it couldn't perform as required. This is not to say mods are no good yet other issues affect how the car will perform.
Other items will also affect the car such as age and maintenance. Putting the Original file in would not correctly check the base running of the car as a whole at this point. Should that even show no change it still would beg the question why is the car then still lower in HP than your friends? and with those mods? It wouldn't as a base run of your car as all stock on that dyno would be more informative. Another question is has the car been to the Dealer in the last 6 years? Perhaps they updated the file.
Best,
Scott
I would like to mention that the car was originally flashed in 2009 and many things can change in almost 6 years. When you dyno a car you should use it as a reference and not as an end result. The car if you wanted to check for gains should be run as all stock first. Then you could make your modifications and run it to check for gains or losses. I would recommend it for each mod in general if possible and under the same conditions as they can skew the results. Running a 997 on a dyno with the deck lid open or closed will make a considerable difference in your results as an example.
I recently had a GT3 that was making less power than a stock one should have on the same dyno. When flashed it improved yet not to where it should be. The first thought was it made less powered so it must have been the software. What it was , was a couple of mods that were not allowing the car to run properly. These were removed and the car then ran with the increase power stock and tuned. So in this case with the original and tuned file it couldn't perform as required. This is not to say mods are no good yet other issues affect how the car will perform.
Other items will also affect the car such as age and maintenance. Putting the Original file in would not correctly check the base running of the car as a whole at this point. Should that even show no change it still would beg the question why is the car then still lower in HP than your friends? and with those mods? It wouldn't as a base run of your car as all stock on that dyno would be more informative. Another question is has the car been to the Dealer in the last 6 years? Perhaps they updated the file.
Best,
Scott
The example that you said about the lid if it is open or close the lid was open and we have put a turbine to send air..the same think to both cars.
The think is that and other 997 s cars that they make dyno runs and ware stock the made the same result 335-340 so i dont think that my car will saw as stock less power than this ...but we will see.
I want to tell you that i was thinking to do is that this week to make the car stock again ( cats,plenum...)and Put the stock file and go to dyno to make a run to see what happens and after to make run with the tune softronic file .
What is your opinion Scott?
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Joined: Apr 2013
Posts: 502
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My one observation is that the intake temperature is far above the ambient. This seems to hint that Scott's deck lid observation came into play to explain part of it, the deck lid must have been closed (?) and there was no fan moving air over the car like you see during real movement on the road. Air temperature can make quite a power difference due to the decreased density of warmer air.
I realize that still doesn't explain the comparison with the friend's car, unless the intake temperature in his case was a lot lower (deck lid opened maybe or just a colder day)?
I'd also agree that the first thing you need to do is verify that the tune is still in place and the dealer's service dept. didn't remove it. I don't know how to tell though.
I realize that still doesn't explain the comparison with the friend's car, unless the intake temperature in his case was a lot lower (deck lid opened maybe or just a colder day)?
I'd also agree that the first thing you need to do is verify that the tune is still in place and the dealer's service dept. didn't remove it. I don't know how to tell though.
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Posts: 502
From: Austin, TX
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Just for the heck of it I did some calculations using the difference between the ambient when you did your test and the intake temp. At that intake temperature the engine loses around 2.8% of the power it would have had if the intake temperature was close to the ambient the report shows... or around 9 HP in your case. That still doesn't add up to the big gain you were looking for, but it is good to be aware of the effect of temperature.
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I would look for a tunner local in your area. Have them tune the car car on the dyno. There could be more power in it, or maybe not.
With NA engines, Porsche didn't leave much on the table. They knew exactly what they were after, and designed the engine for it a intended output.
I have seen a pretty decent gains in 996-997 engines, with putting on a bigger throttle body and manifold. The headers, and exhaust will give very little power gain, for the cost. The air box stock is a excellent design, don't mess with it.
With the ECU tunning, timing and fuel are the key factors, no different than working with old carbs and distributors.
With NA engines, Porsche didn't leave much on the table. They knew exactly what they were after, and designed the engine for it a intended output.
I have seen a pretty decent gains in 996-997 engines, with putting on a bigger throttle body and manifold. The headers, and exhaust will give very little power gain, for the cost. The air box stock is a excellent design, don't mess with it.
With the ECU tunning, timing and fuel are the key factors, no different than working with old carbs and distributors.
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