[mrsmoke515]

How do my logs look? Both on v10 stage 1+ basic bolt ons for a stage 1+ car

91 tune with 93 gas
https://datazap.me/u/mrsmoke335xi/lo...0jjs068spx2c9t

93 tune with 93 gas
https://datazap.me/u/mrsmoke335xi/lo...0hjs06zurc8uef

[TunafishE93]

Your 93 tune has alot of corrections for your 93 gas. I would stick with 93 gas and 91 tune.

[mrsmoke515]

Originally Posted by TunafishE93

Your 93 tune has alot of corrections for your 93 gas. I would stick with 93 gas and 91 tune.

Do you think the gas is causing it?

[TunafishE93]

I didn't make the tune so its hard to say. I would say they made the tune on 91/93 without ethanol. So with ethanol you would have to inject more gas to compensate for the loss of energy from straight gas. Do a pull with 93 gas on the 91 tune and see if your corrections claim down. This will tell you if the issue is the gas.

[mrsmoke515]

Originally Posted by TunafishE93

I didn't make the tune so its hard to say. I would say they made the tune on 91/93 without ethanol. So with ethanol you would have to inject more gas to compensate for the loss of energy from straight gas. Do a pull with 93 gas on the 91 tune and see if your corrections claim down. This will tell you if the issue is the gas.

The first log is on 91 tune with 93 fuel. I’ll try a ethanol free 93 next time I get gas and see if that makes a difference.

[TunafishE93]

Originally Posted by mrsmoke515

The first log is on 91 tune with 93 fuel. I’ll try a ethanol free 93 next time I get gas and see if that makes a difference.

Your logs are not horrible, ideally no correction but i do suspect gas quality for the logs provided. What intercooler you running? its doing a good job not raising temps under pull, unlike factory intercoolers.

[mrsmoke515]

Originally Posted by TunafishE93

Your logs are not horrible, ideally no correction but i do suspect gas quality for the logs provided. What intercooler you running? its doing a good job not raising temps under pull, unlike factory intercoolers.

Its a vrsf 7.5” fmic, a little much for now but i figured buy once rather than re do it all again later on. I want to try more ethonal realistically but Iv had people tell me im nearly maxing my trims and e would probably make it worse. So maybe im just stuck with what i have for now. Maybe a custom tune would help?

[TunafishE93]

Originally Posted by mrsmoke515

Its a vrsf 7.5” fmic, a little much for now but i figured buy once rather than re do it all again later on. I want to try more ethonal realistically but Iv had people tell me im nearly maxing my trims and e would probably make it worse. So maybe im just stuck with what i have for now. Maybe a custom tune would help?

Custom will either lower boost or take out some timing, both will lower power output. The mhd tunes are pretty solid, i would just go with ones that gives you minimum correction.

[lookalikehuuh]

This likely isn't the root cause of the problem, but your low pressure fuel pump is starting to get pretty weak. Its dropping down to 41PSI at times, which IMHO is too low. A healthy pump will hold above 60psi, and target ~72psi.

When is the last time you did spark plugs and coil packs on your car?

[mrsmoke515]

Originally Posted by lookalikehuuh

This likely isn't the root cause of the problem, but your low pressure fuel pump is starting to get pretty weak. Its dropping down to 41PSI at times, which IMHO is too low. A healthy pump will hold above 60psi, and target ~72psi.

When is the last time you did spark plugs and coil packs on your car?

I did oem plugs and coils as well as walnut blast about 1000-1250 miles ago. I also thought it was the pump but Iv had tuners say otherwise

[lookalikehuuh]

Originally Posted by mrsmoke515

I did oem plugs and coils as well as walnut blast about 1000-1250 miles ago. I also thought it was the pump but Iv had tuners say otherwise

well the fuel pump won't cause timing corrections, but could cause fuel starvation in you get to a point where the HPFP runs out of fuel. Its a bit low for my personal taste.

What brand of fuel are you using?

[TunafishE93]

So i have only tuned the n55, does the n54 have different specs for the fuel psi? Cause what i see is in spec on the n55 platform

[mrsmoke515]

Originally Posted by lookalikehuuh

well the fuel pump won't cause timing corrections, but could cause fuel starvation in you get to a point where the HPFP runs out of fuel. Its a bit low for my personal taste.

What brand of fuel are you using?

It’s mavricks ie kum and go 93 octane. Iv been running it for a while now and I didn’t have issues before.

[mrsmoke515]

Originally Posted by TunafishE93

So i have only tuned the n55, does the n54 have different specs for the fuel psi? Cause what i see is in spec on the n55 platform

Im honestly not to familiar with the n55 platform they say anything below 50 is bad bad but they also say if it doesn’t affect your hpfp it’s probably not the problem.

[TunafishE93]

Maverick gas is the worst gas. Try some Chevron or if you have a mobil one around.

[mrsmoke515]

Originally Posted by TunafishE93

Maverick gas is the worst gas. Try some Chevron or if you have a mobil one around.

Unfortunately I don’t have either. Here we have mavricks and amoco and then 45 minutes away we have a Costco. That’s why I was thinking maybe a octane booster might help but I’m not really sure it’ll make a difference

[TunafishE93]

Octane boosters dont do much to be honest. Better to tune for the gas you have. Do you have a log of a stage one 91 pull? See if that cleans up the corrections.
Hows the car feel to you, does it pull well?
I was in the same situation as you with crappy gas (still am), we only have 91 around here. I tried the octane boosters (boostane) and even at their 100 octane calculation i didnt notice much improvement. Still have a few quart of that crap. I ended up getting into meth which did clean up the corrections BUT after about 20k miles started to get rod knock. Cant confirm the cause but this time around i am not gonna test the limits and live with the power i got.
Did you go one step cooler with your plugs? Its a good idea when pushing these engines, not saying that will clean up the corrections but it won't hurt. I ran one step cooler before tuning so no first hand experience how they effect the timing but maybe something to look into.

[mrsmoke515]

Originally Posted by TunafishE93

Octane boosters dont do much to be honest. Better to tune for the gas you have. Do you have a log of a stage one 91 pull? See if that cleans up the corrections.
Hows the car feel to you, does it pull well?
I was in the same situation as you with crappy gas (still am), we only have 91 around here. I tried the octane boosters (boostane) and even at their 100 octane calculation i didnt notice much improvement. Still have a few quart of that crap. I ended up getting into meth which did clean up the corrections BUT after about 20k miles started to get rod knock. Cant confirm the cause but this time around i am not gonna test the limits and live with the power i got.
Did you go one step cooler with your plugs? Its a good idea when pushing these engines, not saying that will clean up the corrections but it won't hurt. I ran one step cooler before tuning so no first hand experience how they effect the timing but maybe something to look into.

I think I posted a 91 log in there too and it definitely cleans them up but not as much as I’d like still get -3 in 3 or more at times. I’m still on oem bosh plugs and elder coils. Ken at Wedge recommended I swap over to 1 step colder plugs and s55 coils. so maybe that and the fuel pump and see if that affect anything? With a walbro I should be able to run more e and that should help with corrections too no?

[TunafishE93]

Yeah ethanol is where the power is if you have a good source, nothing in my parts, obviously fuel pump and tune for the extra fuel you will be pumping in on ethanol. Ethanol on a gas tune will help with corrections BUT you will actually loose out on power, cause it doesn't have the energy density that gas has.
By the 91 tune, I mean stage 1 without the plus. Would be hitting about 14 psi vs the 16 psi on the plus tune.

[mrsmoke515]

Originally Posted by TunafishE93

Yeah ethanol is where the power is if you have a good source, nothing in my parts, obviously fuel pump and tune for the extra fuel you will be pumping in on ethanol. Ethanol on a gas tune will help with corrections BUT you will actually loose out on power, cause it doesn't have the energy density that gas has.
By the 91 tune, I mean stage 1 without the plus. Would be hitting about 14 psi vs the 16 psi on the plus tune.

I do not. Iv never ran anything but the stage 1+ and stock maps. I’ll give it a try as well, can’t hurt. I know stock map I get very little timing pull. I also did not have this problem a couple months ago on the same 93 tune with the same 93 gas.

[TunafishE93]

What changed a couple months ago?

[lookalikehuuh]

yeah sure sounds like you have somes junk fuel in the car. I woudl strongly suggest going with Shell VPower, its the fuel that I have gotten the least amount of corrections with to date.

Chevron coming in 2nd place for me.

Mobil/76 coming in close 3rd for me.

If none of those fuel stations are around, I woudl rather tow my car to a proper fuel station. Fuel quality makes a HUGE difference on a tuned car.