992 Carrera OBD Flashing
#946
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Costco gas is generally a gas associated with higher knock than other brands. If you were to fill up with that gas, a quick datalog and analysis could tell you how much knocking is going on and you could compare this to other fill-ups. Another cool thing about our product!
Try each gas and log each one, the empirical data will let you know which is better, and we are happy to review logs for free from our software.
-Charles@M
Try each gas and log each one, the empirical data will let you know which is better, and we are happy to review logs for free from our software.
-Charles@M
#947
Costco gas is generally a gas associated with higher knock than other brands. If you were to fill up with that gas, a quick datalog and analysis could tell you how much knocking is going on and you could compare this to other fill-ups. Another cool thing about our product!
Try each gas and log each one, the empirical data will let you know which is better, and we are happy to review logs for free from our software.
-Charles@M
Try each gas and log each one, the empirical data will let you know which is better, and we are happy to review logs for free from our software.
-Charles@M
#948
Costco gas comes out of the same hose at the distribution point as shell and Exxon gas. The only difference between brands is additives added into the tanker for the specific station it’s going to. Walmart, a lot of grocery store brands etc have no additives. Exxon has a different additives package than Shell. The gas is all the same.
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dixonk (08-19-2022)
#949
Great shop!!
#950
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How realistic / safe is it to frequently switch between E85 and 93? I live where both E85 and 93 are readily available but often travel with the car to places that E85 is not (rural Tennessee, etc).
#951
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Switching between the different fuels is fine to do as many times as you like. Since these cars don't have active flex fuel, you do need to make sure you are letting the tank get low so that when you switch tunes you haven't diluted things too much. For example, you wouldn't want to fill up on e85 if you have a 1/4 tank of 93 left in the car. Your e85 would be diluted to like an e50 or something and would not be compatible with the tune (that being said, we can make tunes for blends as well. For the 992 Turbo we have an E30 tune since the HPFP can't support full E85 on that car).
Different gas brands most certainly can make a difference and is noticeable in datalogs looking at knock events. When we have clients with excessive knock in their logs we sometimes recommend trying another brand or station and that sometimes does the trick if the gas was in fact the issue. The gas comes down to age, ethanol content, additives, etc. There are lots of variables going on.
-Charles@M
Different gas brands most certainly can make a difference and is noticeable in datalogs looking at knock events. When we have clients with excessive knock in their logs we sometimes recommend trying another brand or station and that sometimes does the trick if the gas was in fact the issue. The gas comes down to age, ethanol content, additives, etc. There are lots of variables going on.
-Charles@M
#952
Rennlist Member
Switching between the different fuels is fine to do as many times as you like. Since these cars don't have active flex fuel, you do need to make sure you are letting the tank get low so that when you switch tunes you haven't diluted things too much. For example, you wouldn't want to fill up on e85 if you have a 1/4 tank of 93 left in the car. Your e85 would be diluted to like an e50 or something and would not be compatible with the tune (that being said, we can make tunes for blends as well. For the 992 Turbo we have an E30 tune since the HPFP can't support full E85 on that car).
Different gas brands most certainly can make a difference and is noticeable in datalogs looking at knock events. When we have clients with excessive knock in their logs we sometimes recommend trying another brand or station and that sometimes does the trick if the gas was in fact the issue. The gas comes down to age, ethanol content, additives, etc. There are lots of variables going on.
-Charles@M
Different gas brands most certainly can make a difference and is noticeable in datalogs looking at knock events. When we have clients with excessive knock in their logs we sometimes recommend trying another brand or station and that sometimes does the trick if the gas was in fact the issue. The gas comes down to age, ethanol content, additives, etc. There are lots of variables going on.
-Charles@M
#953
Switching between the different fuels is fine to do as many times as you like. Since these cars don't have active flex fuel, you do need to make sure you are letting the tank get low so that when you switch tunes you haven't diluted things too much. For example, you wouldn't want to fill up on e85 if you have a 1/4 tank of 93 left in the car. Your e85 would be diluted to like an e50 or something and would not be compatible with the tune (that being said, we can make tunes for blends as well. For the 992 Turbo we have an E30 tune since the HPFP can't support full E85 on that car).
Different gas brands most certainly can make a difference and is noticeable in datalogs looking at knock events. When we have clients with excessive knock in their logs we sometimes recommend trying another brand or station and that sometimes does the trick if the gas was in fact the issue. The gas comes down to age, ethanol content, additives, etc. There are lots of variables going on.
-Charles@M
Different gas brands most certainly can make a difference and is noticeable in datalogs looking at knock events. When we have clients with excessive knock in their logs we sometimes recommend trying another brand or station and that sometimes does the trick if the gas was in fact the issue. The gas comes down to age, ethanol content, additives, etc. There are lots of variables going on.
-Charles@M
Also, should we change spark plugs to a colder plug or gap them differently to optimize E85 running?
#954
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We always recommend running stock plugs gapped to .022 as this works best for prevent spark blow out.
We haven't seen any issues arise yet on cars running e85 for long periods of time. That said, it's not good for ethanol to sit for long periods of time, so if you don't drive your car often I wouldn't leave it sitting with e85 in it. E85 is meant to be driven on.
-Charles@M
We haven't seen any issues arise yet on cars running e85 for long periods of time. That said, it's not good for ethanol to sit for long periods of time, so if you don't drive your car often I wouldn't leave it sitting with e85 in it. E85 is meant to be driven on.
-Charles@M
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AlterZgo (08-19-2022)
#956
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Stage 2 is upgraded link pipes.
Here are the official map notes: https://m-engineering.atlassian.net/...ibration+Notes
-Charles@M
Here are the official map notes: https://m-engineering.atlassian.net/...ibration+Notes
-Charles@M
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dixonk (08-19-2022)
#957
Stage 2 is upgraded link pipes.
Here are the official map notes: https://m-engineering.atlassian.net/...ibration+Notes
-Charles@M
Here are the official map notes: https://m-engineering.atlassian.net/...ibration+Notes
-Charles@M
#958
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A catback is still Stage 1.
Sorry, I realize those map notes are a bit vague but our official wording needs to be.
Stage 2 would be upgraded link pipes. This would be upgraded high flow cats or better.
-Charles@M
Sorry, I realize those map notes are a bit vague but our official wording needs to be.
Stage 2 would be upgraded link pipes. This would be upgraded high flow cats or better.
-Charles@M
#959
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Just installed my Soul Sport Cats and the stage 2 tune. Very nice improvement. I haven’t tried out a launch on it yet but I was able to increase acceleration by .10 g. Had to run a couple different versions to get rid of a pesky CEL but Scott got it taken care of.