Softronic 992
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Semper Fi!
Scott
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Softronic - Porsche Performance Software Tuning
Faster than a speeding bullet.
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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 along with teamed owned Tudor ,World Challenge , PCA, IMSA and others in an exclusive with Softronic.
Porsche PCA racing binary check by Softronic for compliance.
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What I did find were these posts from LN Engineering and PCA stating that because gasoline is a solvent, a rich mixture can actually "wash" the cylinder walls of any remaining lubricating oil, actually increasing wear.
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I'm curious what part of Scott's rationale seemed solid to you? He told me that the cold-start procedure's rich fuel mixture lubricated the piston skirts, which prevented bore-scoring. However, I can't find any technical evidence to back this up, and when I asked Scott for some supporting evidence (beyond his own personal beliefs) he couldn't provide any.
What I did find were these posts from LN Engineering and PCA stating that because gasoline is a solvent, a rich mixture can actually "wash" the cylinder walls of any remaining lubricating oil, actually increasing wear.
What I did find were these posts from LN Engineering and PCA stating that because gasoline is a solvent, a rich mixture can actually "wash" the cylinder walls of any remaining lubricating oil, actually increasing wear.
Perhaps when I have the time I will publish another article on it since I'm now the Tech expert for the 2012 and newer engines. I used to be yet did not have the time for the Cayman, Boxster and Carrera GT cars in their entirety years ago to continue.... Most of all the Q&A was lost in a server crash yet many of the articles are still in the Panorama , Car and Driver, Excellence, Christophorus and various books etc.
There are differences in opinions and advertisers to experts in the field.
Semper Fi!
Scott
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I'm curious what part of Scott's rationale seemed solid to you? He told me that the cold-start procedure's rich fuel mixture lubricated the piston skirts, which prevented bore-scoring. However, I can't find any technical evidence to back this up, and when I asked Scott for some supporting evidence (beyond his own personal beliefs) he couldn't provide any.
What I did find were these posts from LN Engineering and PCA stating that because gasoline is a solvent, a rich mixture can actually "wash" the cylinder walls of any remaining lubricating oil, actually increasing wear.
What I did find were these posts from LN Engineering and PCA stating that because gasoline is a solvent, a rich mixture can actually "wash" the cylinder walls of any remaining lubricating oil, actually increasing wear.
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You have a 981 GT4 and I explained why it was used and its on my site. I also mentioned that while I would lower the RPM I wouldn't also remove the fueling and you could return it for a full refund. I'm sure another tuner will do it for you.
Perhaps when I have the time I will publish another article on it since I'm now the Tech expert for the 2012 and newer engines. I used to be yet did not have the time for the Cayman, Boxster and Carrera GT cars in their entirety years ago to continue.... Most of all the Q&A was lost in a server crash yet many of the articles are still in the Panorama , Car and Driver, Excellence, Christophorus and various books etc.
There are differences in opinions and advertisers to experts in the field.
Semper Fi!
Scott
Perhaps when I have the time I will publish another article on it since I'm now the Tech expert for the 2012 and newer engines. I used to be yet did not have the time for the Cayman, Boxster and Carrera GT cars in their entirety years ago to continue.... Most of all the Q&A was lost in a server crash yet many of the articles are still in the Panorama , Car and Driver, Excellence, Christophorus and various books etc.
There are differences in opinions and advertisers to experts in the field.
Semper Fi!
Scott
Scott, if you could explain why cylinder wall washing doesn't happen for the 9A1 when running a rich fuel mixture at startup when this seems to be a well-known occurrence in the automotive world when a motor is running rich (even beyond Porsche), that would be helpful. Sharing technical sources beyond your personal opinions/beliefs would be helpful in building the credibility of this position.
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Based on the Softronic 981 GT4 product page stating "While Softronic can it does NOT recommend Cold Start Elimination" I was under the impression removal could be done upon request, but I guess that isn't the case. I will be getting a refund as Scott mentioned since cold-start removal was my primary driver for getting a tune.
Scott, if you could explain why cylinder wall washing doesn't happen for the 9A1 when running a rich fuel mixture at startup when this seems to be a well-known occurrence in the automotive world when a motor is running rich (even beyond Porsche), that would be helpful. Sharing technical sources beyond your personal opinions/beliefs would be helpful in building the credibility of this position.
Scott, if you could explain why cylinder wall washing doesn't happen for the 9A1 when running a rich fuel mixture at startup when this seems to be a well-known occurrence in the automotive world when a motor is running rich (even beyond Porsche), that would be helpful. Sharing technical sources beyond your personal opinions/beliefs would be helpful in building the credibility of this position.
I work on facts and data and not personal opinions in which anyone can post an article as either as we get it from the news all the time and it all gets mixed up in what is or isn't. I do have my own personal opinions yet not when it comes to tuning or building race engines that I know are an issue.
I think we can agree to disagree
Semper Fi!
Scott
Last edited by Softronic; Jul 14, 2025 at 05:15 PM. Reason: It to in ......
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There is a big difference from washing down a cylinder with extra fuel that will then go into the oil and contaminate it compared to a proper controlled amount. Should the washing be that bad it will add literally to the oil level over time unless burnt at the same rate. All engines require more fueling for cold starting. We used to call them chokes in if they were manual or automatically controlled and the fuel inj cars use several different types in principle in how it works. This would range from the older RSR mechanical, CSI, Motronic and so on. The newer cars have 4 levels for the inj in fuel control and its not just based off of a time duration for a given fuel pressure as the older port injection and progressive DFI cars have gone through.
I work on facts and data and not personal opinions in which anyone can post an article as either as we get it from the news all the time and it all gets mixed up it what is or isn't. I do have my own personal opinions yet not when it comes to tuning or building race engines that I know are an issue.
I think we can agree to disagree
Semper Fi!
Scott
I work on facts and data and not personal opinions in which anyone can post an article as either as we get it from the news all the time and it all gets mixed up it what is or isn't. I do have my own personal opinions yet not when it comes to tuning or building race engines that I know are an issue.
I think we can agree to disagree
Semper Fi!
Scott
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From the additional information provided by Scott, it sounds like in a cold start situation Porsche might have enough fueling control to avoid washing, so perhaps the extra fuel doesn't cause bore scoring. The second part I'm curious about is the assertion that the rich fuel during the cold-start procedure lubricates the piston skirts, actually preventing bore scoring. I haven't been able to find any technical documentation (or personal opinions beyond Scott's) supporting this hypothesis, which is why I asked for additional information in the first place.
FWIW, the links I shared above weren't from some rando forum post. They were from LN Engineering (seems credible) and was also posted on the PCA website, which also seems like a credible organization, and I assume anything posted there would be peer-reviewed.
FWIW, the links I shared above weren't from some rando forum post. They were from LN Engineering (seems credible) and was also posted on the PCA website, which also seems like a credible organization, and I assume anything posted there would be peer-reviewed.
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I'm curious what part of Scott's rationale seemed solid to you? He told me that the cold-start procedure's rich fuel mixture lubricated the piston skirts, which prevented bore-scoring. However, I can't find any technical evidence to back this up, and when I asked Scott for some supporting evidence (beyond his own personal beliefs) he couldn't provide any.
What I did find were these posts from LN Engineering and PCA stating that because gasoline is a solvent, a rich mixture can actually "wash" the cylinder walls of any remaining lubricating oil, actually increasing wear.
What I did find were these posts from LN Engineering and PCA stating that because gasoline is a solvent, a rich mixture can actually "wash" the cylinder walls of any remaining lubricating oil, actually increasing wear.
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From the additional information provided by Scott, it sounds like in a cold start situation Porsche might have enough fueling control to avoid washing, so perhaps the extra fuel doesn't cause bore scoring. The second part I'm curious about is the assertion that the rich fuel during the cold-start procedure lubricates the piston skirts, actually preventing bore scoring. I haven't been able to find any technical documentation (or personal opinions beyond Scott's) supporting this hypothesis, which is why I asked for additional information in the first place.
FWIW, the links I shared above weren't from some rando forum post. They were from LN Engineering (seems credible) and was also posted on the PCA website, which also seems like a credible organization, and I assume anything posted there would be peer-reviewed.
FWIW, the links I shared above weren't from some rando forum post. They were from LN Engineering (seems credible) and was also posted on the PCA website, which also seems like a credible organization, and I assume anything posted there would be peer-reviewed.