2015 Z06 low side dropping, failing pump or anything else?

[TriPinTaZ]

And why should you not have to navigate the labyrinth of tunnels like we did? Hell I even gave you a compass. This is the exact reason most of the guys, that know what they are doing, simply don't post on here anymore. We have done all of the leg work researching, discussing, testing and POSTING on this forum. Then along comes someone with a problem that has been discussed and solved before, but doesn't want to go search and find the info. They just want a fast easy handout. Invest some of your own time and find the answers that are here already rather than expecting others to do it for you.

The question you have has been discussed and solved. I even gave you the PID's and the math equation to use. It would literally take you 60 seconds to create it. And if you can't figure it out, its already posted on the forum somewhere. The search feature is your friend.

As for tunes? I don't lock my tunes and I'm sure my tunes are floating around, heck I even posted a couple on the forum somewhere. Pretty sure my Gen V config files are posted too. They aren't special. Any tuner that knows how to tune and how engines work etc, is going to tune very similarly. I've seen plenty of other guys tunes. Most of the time the logic is slightly different but the end result is the same. So I'm not concerned with protecting my tune files or my custom configs at all. I just will not support the attitude that you should get something without effort because you feel entitled to have it. It's like college kids these days, they want $350,000/yr jobs right out of college, with no work experience, and then want their student debt excused.

[kenand1988]

And why should you not have to navigate the labyrinth of tunnels like we did? Hell I even gave you a compass. This is the exact reason most of the guys, that know what they are doing, simply don't post on here anymore. We have done all of the leg work researching, discussing, testing and POSTING on this forum. Then along comes someone with a problem that has been discussed and solved before, but doesn't want to go search and find the info. They just want a fast easy handout. Invest some of your own time and find the answers that are here already rather than expecting others to do it for you.

The question you have has been discussed and solved. I even gave you the PID's and the math equation to use. It would literally take you 60 seconds to create it. And if you can't figure it out, its already posted on the forum somewhere. The search feature is your friend.

As for tunes? I don't lock my tunes and I'm sure my tunes are floating around, heck I even posted a couple on the forum somewhere. Pretty sure my Gen V config files are posted too. They aren't special. Any tuner that knows how to tune and how engines work etc, is going to tune very similarly. I've seen plenty of other guys tunes. Most of the time the logic is slightly different but the end result is the same. So I'm not concerned with protecting my tune files or my custom configs at all. I just will not support the attitude that you should get something without effort because you feel entitled to have it. It's like college kids these days, they want $350,000/yr jobs right out of college, with no work experience, and then want their student debt excused.

Man you certainly do have a chip on your shoulder. You're making a lot of false assumptions about me, my intentions and my character. FYI the boost pid I use and your solution of map hi res - baro yield the same result. I was also never asking a question about boost. I was telling the other person I dm'd them so we could exchange numbers since they were helpful.

[TriPinTaZ]

You're kind of right, I got on my high horse with a pet peeve that I see on here often. For what is is worth though, your original question in the first post, I've seen 2015-2016 Z06's have weak low side pumps. They work OK on pump gas, but as soon as you put some E in them, the low side plummets. Where as the 2017-2018's rarely if ever have this issue. And the 2019's have the ZR1 low side and hold up the best. I've seen 2015 low side drop 45psi before on 93 pump when COT kicks in. The early model Z06's just seem to have weak low sides. Not saying I am right, but that is the trend I've seen personally.

2015-2016 cars I always recommend a low side solution if you ever plan to run E85 blends. Most of them I can't get to handle much more than E30-E35 with bolt ons and stock pulleys. The 2017+'s usually have no issue holding E50 with the same mods. Add a low side to any 2015-2018 and you can get to E60 easy.

Also as a note, a stock Z06 would hit around 550gs on the MAF at peak boost. If you're overly rich with the MAF config and COT kicks in, I imagine the car would go way rich and tax the fuel system. I'd replace the high side feed pipe with the newer version for good measure as well and install a DSX low side. Then you will have no more worries.

[kenand1988]

You're kind of right, I got on my high horse with a pet peeve that I see on here often. For what is is worth though, your original question in the first post, I've seen 2015-2016 Z06's have weak low side pumps. They work OK on pump gas, but as soon as you put some E in them, the low side plummets. Where as the 2017-2018's rarely if ever have this issue. And the 2019's have the ZR1 low side and hold up the best. I've seen 2015 low side drop 45psi before on 93 pump when COT kicks in. The early model Z06's just seem to have weak low sides. Not saying I am right, but that is the trend I've seen personally.

2015-2016 cars I always recommend a low side solution if you ever plan to run E85 blends. Most of them I can't get to handle much more than E30-E35 with bolt ons and stock pulleys. The 2017+'s usually have no issue holding E50 with the same mods. Add a low side to any 2015-2018 and you can get to E60 easy.

Also as a note, a stock Z06 would hit around 550gs on the MAF at peak boost. If you're overly rich with the MAF config and COT kicks in, I imagine the car would go way rich and tax the fuel system. I'd replace the high side feed pipe with the newer version for good measure as well and install a DSX low side. Then you will have no more worries.

As I found out after installing the wideband the car without cot on was dropping to 10:1. I think partially because I moved power enrich to be very early and it's only using the maf. The car thought it was hitting 83 lb min of air but when corrected to a 12:1 afr it was only around 64-65. This freed up a lot of fuel. I now have a 9% lower halltech intake and running e30 but you're right I don't think it could handle e50. The only thing Ive noticed that I would like to change is when I go wot it takes a little long for the fuel to transition from normal to high flow this causes the high side to run on lower pressure for a second and pw goes to 5.2 I was thinking about messing with setting the high flow status to kick on earlier or change the rate of change. Do you have a suggestion.

[TriPinTaZ]

As I found out after installing the wideband the car without cot on was dropping to 10:1. I think partially because I moved power enrich to be very early and it's only using the maf. The car thought it was hitting 83 lb min of air but when corrected to a 12:1 afr it was only around 64-65. This freed up a lot of fuel. I now have a 9% lower halltech intake and running e30 but you're right I don't think it could handle e50. The only thing Ive noticed that I would like to change is when I go wot it takes a little long for the fuel to transition from normal to high flow this causes the high side to run on lower pressure for a second and pw goes to 5.2 I was thinking about messing with setting the high flow status to kick on earlier or change the rate of change. Do you have a suggestion.

There are some settings that can help this. email me your latest file and I'll edit and send back.

[kenand1988]

There are some settings that can help this. email me your latest file and I'll edit and send back.

Will do!