Quote from: 802SHO on November 20, 2018, 01:04:01 PM
Quote from: AJP turbo on November 20, 2018, 12:59:42 PM
Yeah a boost leak and massive throttle closures...but that is a good thing...actual boost pressure never exceeded normal amount so that is good but the turbo was probably spinning pretty fast
Sounds like it remained safe which is the most important thing anyone could ever ask for in a tune with any type of engine issue. Lol of course with an issue you shouldnt take a few passes at the track! Haha but who knew beforehand!?
Quote from: TopherSho on November 20, 2018, 02:02:40 PM
Count me in the club as well. mine was popping off under tune but not stock. EVERY boosted line is now clamped that i could reach.
It did remain safe. I will go into detail on my findings along the way to finding the blown off line. About two weeks ago I was driving to Cali (about a 360 mile drive for me). Along the way I was notice my BOV's were acting off. They were very active, and blowing off at very light throttle (first sign). However, on the street I don't run the car over 90 mph (unless I am datalogging in Mexico) so I didn't have a reference in my perceived loss of the big end speed. With my license plate, I inflict most heartbreak street light to street light. I emailed Brad and he said send me the logs and check the oring's in the BOV's.
I dragged my feet on the logs and checking the BOV's. I have been stupid busy at work. I went home and checked the BOV's and the orings were good. I looked over the top end and somehow missed this line. I am kinda embarrassed because I have owned many turbo cars and usually don't miss things like that. I went to Mexico, got my data, and went home. I sat and reviewed the logs and did notice the difference between turbo and MAP boost pressures (second sign). Hind sight rearing its head. I sent him the logs late Friday night.
Went to the track early Saturday afternoon/evening. I got 3 passes. 12.68, 12.61, 12.56 all with MPH under 109 (third sign). It went faster with less mph in my head because my sixty foot was getting better. 1.88, 1.81, 1.77 for the passes. I replaced the brakes the weekend before and it now holds the line with more rpm and I am seeing boost before I launch now. However, the big end didn't feel right (another sign).
On the way home Brad literally emailed me and told me not to drive the car hard. OOPS. He saw what I saw in the logs and instantly knew what was happening. I fixed the issue, went back to Mexico, top end returned, and I have to email the new logs to Brad. Getting to the track in the next month will be rough, so new results probably will not be until early next year.
Ideally, if Brad thinks we can turn her up a little bit more I am also game. I want to hit the dyno again (it is much cooler now) and see if we can crack 400 AWHP on this revision. I want that 400 AWHP and sub 12.50 tune only. After that, I will down the car for custom DP's, 3rd Cat delete, and if a certain intercooler becomes available. I really want something like these DP's and I have a guy that can do it..so...wish me luck.
https://www.ecoboostperformanceforum.com/index.php/topic,9506.0.html