I have recently decided to switch from the Jon Lund "box" tune and contacted Shaun with AED since I have heard nothing less than great things about him. I've done my data logging, sent it away and he explains it is logging a Massive Knock, the absolute maximum knock allowed is being pulled. I live in Houston and ALWAYS put 93 octane, mainly conoco (very convenient with business card) and Shell SOMETIMES. I have to redo my logging and I have to "find better fuel" in order for him to tune it, which makes perfect sense. I just want to know you guys thoughts on the matter, if it is a very good chance its the fuel causing this. And If any of you in here have had this problem with their boss. I have no check engine lights, took it to Ford and they said everything is reading find. I look forward to working with him, He has been very helpful so far and easy to work with. I appreciate any feedback very much.
'13 Boss AED Tune
- Thread starter EliteSweep
- Start date
here is something to check. if you can, run as much gas out of your tank as you can, and put as much race fuel back in as you can find / afford and relog and check the knock sensors. just make sure it's the fuel that's the issue.
I only say this because I'm in the same boat right now. I had 93 from the gas station that the guy I had tuning my car always goes to and it was pulling so much timing from knock that it was like I had bad 87 in it. My plan is to put about 5 gallons of 110 in the tank and see if the knock sensors are still picking up anything. I've seen on a forum to two that the knock sensors will pick up noise from exhaust (like long tubes and offroad mid pipes). not sure if that's true or not, but I want to make sure fuel really is the issue before I start changing things around.
I'll be checking mine as soon as I get back home, I've been out of town for work since the last time I datalogged with the 93.
I only say this because I'm in the same boat right now. I had 93 from the gas station that the guy I had tuning my car always goes to and it was pulling so much timing from knock that it was like I had bad 87 in it. My plan is to put about 5 gallons of 110 in the tank and see if the knock sensors are still picking up anything. I've seen on a forum to two that the knock sensors will pick up noise from exhaust (like long tubes and offroad mid pipes). not sure if that's true or not, but I want to make sure fuel really is the issue before I start changing things around.
I'll be checking mine as soon as I get back home, I've been out of town for work since the last time I datalogged with the 93.
Surprising you are switching from a Lund tune to an AED tune...but thats another topic
I live up here in Waco and from time to time see the same issue especially with the Trackey. Is all the gas you are using E10? I have been considering the switch to the corn sauce but only 1 station in a 30 mile radius here that carries it = not rational
Do it again with race fuel, or a quart of Torco Accelerator for 10 gals of premium.
Could he not in theory mix in a little E85 to the tank to help raise the octane? Total speculation on my part...
Probably not a good idea since I thought it burns different.
i can't speak for the OP, but i know that if it indeed turns out to be a fuel issue on my end, i will be going with a return setup and E85.
if it's not a fuel issue, i have no idea what to do next. but i'll cross that bridge when i get there.
if it's not a fuel issue, i have no idea what to do next. but i'll cross that bridge when i get there.
I dumped Trackey about 6 months ago to go with AED tune on my 2013 Boss. Nothing but great things to say about Shaun. I'm also in Houston, and Shaun was able to complete my tune, but the fuel was "borderline". In speaking to some folks, Houston pump gas has some issues, and its been not so great recently. I used to run Shell 93 exclusively, but have been trying some others.
I've never thrown a light, but have become a little less impressed with Shell than I once was.
Best of luck, and welcome to Club AED. I am doing a Cobra Jet Intake in the next couple of weeks, so will be running new datalogs for Shaun. I hope I have better luck with the fuel!!!
I've never thrown a light, but have become a little less impressed with Shell than I once was.
Best of luck, and welcome to Club AED. I am doing a Cobra Jet Intake in the next couple of weeks, so will be running new datalogs for Shaun. I hope I have better luck with the fuel!!!
If you have E85 in the area... that's the way to go!
i wish shaun would buy a cape house and summer out here on the east coast. (with some custom dyno tunes in his free time)
I'm in the Dallas Fort Worth Area and I just had the same problem. Bought the AED performance/drag/lopey . We did the data logs on Valero 93 and Shaun said it was knocking and bad fuel.
Drained the tank (less than 1/4) and put in Shell 93. Came back with a fuel knock, but not as bad. Shaun adjusted the tune for the gas. The car runs great and with a definite increase in power.
I'll try to have a Dyno done to see what power I actually have.
Drained the tank (less than 1/4) and put in Shell 93. Came back with a fuel knock, but not as bad. Shaun adjusted the tune for the gas. The car runs great and with a definite increase in power.
I'll try to have a Dyno done to see what power I actually have.
http://www.svtperformance.com/forums/2011-2014-mustangs-354/935105-sucks.html
This was my thread from a couple of months ago as I went through this same thing. Long story short, I tried fuel from several different sources and still couldn't produce a data lot without knock. I ended up pouring in a full can of torco accelerator in ten gallons of 93 octane Shell fuel. I then datalogged in the cool night air for low iat and got a log where the knock value stayed negative all the way to the redline. Well that was obviously good enough and Shaun sent me my base tune. I then installed my o/r xpipe and loaded the base tune. Damn it felt good...it sounded positively nasty and felt very strong. as well. I datalogged the new tune, also in the cool night air and the sensors started to pick up knock againl.
Shaun said he had done all he could and pulled a degree of timing off the big end and richened the mixture a bit of my final tunes. The car still feels and sounds like a million bucks but I can't help but wonder what it woulda been like if he didnt have to pull timing and add fuel on my final tune.
Please post your findingss as you move along. I'd sure like to to know if it is piciking up false knock and what can be done about it.
Dave
This was my thread from a couple of months ago as I went through this same thing. Long story short, I tried fuel from several different sources and still couldn't produce a data lot without knock. I ended up pouring in a full can of torco accelerator in ten gallons of 93 octane Shell fuel. I then datalogged in the cool night air for low iat and got a log where the knock value stayed negative all the way to the redline. Well that was obviously good enough and Shaun sent me my base tune. I then installed my o/r xpipe and loaded the base tune. Damn it felt good...it sounded positively nasty and felt very strong. as well. I datalogged the new tune, also in the cool night air and the sensors started to pick up knock againl.
Shaun said he had done all he could and pulled a degree of timing off the big end and richened the mixture a bit of my final tunes. The car still feels and sounds like a million bucks but I can't help but wonder what it woulda been like if he didnt have to pull timing and add fuel on my final tune.
Please post your findingss as you move along. I'd sure like to to know if it is piciking up false knock and what can be done about it.
Dave
Will do. I decided not to worry about "what power am I missing?" It's definitely better and sounds great. Except the decels with AED tune now is causing my side pipes to not just bark and crack; but they deliver full on backfires that sound like cannons going off. I'll probably end up going with an X pipe!!!
so for all you gas in Texas that have been finding 93 Octane that is having some knock issues have any of you guys tried draining the tank an going with 91 octane an data log to see if the knock is there with the lower octane? us guys in CA only have 91 with E10 in the gas now an we don't seem to have the knock issues you guys are having.
I saw a video of the backfire on decel and was stunned, it actually did sound like a gunshot. I might be wrong but I don't think an xpipe will fix this. Mine cracks and pops a bit when I come off of the gas, but I like it and wouldn't change it if I could.
I've never used anything but 93 as that is not even available here. We only have 87,89 and 93 here. If good quality E85 were readily available, here, I'd just switch to that and be happy about it.
I'm not knowledgable enough to explain the exhaust gas flow/gathering, etc. But my source/installer does know the difference between the H pipe set up with side exhaust (OEM on Boss) and the X pipe. X pipe will not have the side exhaust backfire (side exhaust gone) nor will it gather to explode out of rear exhaust pipes.
Exhaust experts chime in?
Guys call me crazy but if so many of you have the same issue, it sounds to me like these tunes are a bit to aggressive for pump fuel. I understand fuel can vary, but with so many of you with the same issue from different parts of the country... maybe these tunes need to be dialed back some!
The problem is I've been seeing this on bone stock cars on the factory tunes.
Since Winter blended fuel ended, I (and other tuners) have been seeing high knock values from 91-93 octane all up and down the East coast and Mid West. This was not the case 1 year ago. I can't help but think there has been a regional blend change causing the issues, or perhaps a huge volume of sub-par fuel?
The only thing similar out here we've found is Chevron 91 tends to take 2-3 degrees less timing than 76/BP/Shell. 76 being our 'preferred' fuel.
I've seen logs from places where only 90 octane is available and no knock logged, at the same time as I'm receiving logs with Knock on 5.0's with 93 in the tank. There is far more to the anti-detonation properties of fuel than *just* octane. Octane (in general) is a good indication of a good anti-knock fuel, but it does not mean as much as people think.
The only other thing we can think of is 'false' knock from either Loose, or faulty knock sensors, but we've not had a car in Northern CA with any logged knock problem (that has not been resolved with better fuel) to test this theory.
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