Time to resurrect this thread, if anyone is interested.
So to re-cap, drove an old 07 into the ground and decided to do an engine build.
Spent last summer tuning it/and breaking the engine in. No major track days or drag days. Here was the last datalog from last year before I parked the car for the winter.
Not looking too bad. No way to say with confidence what the correct value is, but I would be surprised if it is off by more than +/- 10%. Seat Dyno says that number feels about right.
Anyways, what I want out of the build after all is reliability and longevity, so figuring out what my output is really isn't my number one priority.
I've also been doing UOA with blackstone. Here were the first two results,
So not good news, but not panic inducing either. Probably just the turbo wearing in still, or the engine is taking longer to wear in than expected.
Here is where it gets complicated again. So I unfortunately I had to move in the early spring for a temporary job, so I didn't have much time or opportunities to have fun with the vehicle or really iron out what this issue was. What I did do however was pull my oil in the spring, and set aside that sample for testing, knowing that I might have an Aluminum issue. Then I did something stupid, and I lost the sample. Oh well no worries right? It was probably nothing anyways. So I kept driving the car, in particular long commutes on weekends to be with the GF. At this time, car was pulling like stink, putting alot of smiles on the faces of a few people when I had a chance to show off.
Note the grip of death from the blond in the back.
Actually, on that drive I hit a pothole, destroyed my right wheel, right suspension, and right CV axle. Too much weight I guess and time for new suspension. But that's another story.
So after getting a temporary fix in place 1300$ later, the next week, on a whim, I had a free afternoon and I went to the autoclub and decided that it was a good time to do a compression test, as I hadn't done one since I got the engine in, and not only should I get a baseline, I really should make sure there are no issues.
Horror of horrors, here were my results;
Cyl 1 - 125 150W
Cyl 2 - 115 130W
Cyl 3 - 120 140W
Cyl 4 - 155 160W
I'll just let that sink in.
Come to think of it, I had to top up my oil.... I mean, I knew I had a slow leak, one of my buried tubes probably just not tight enough, and when I checked the valve cover it needed tightening, not to mention I'm using 5W40 and I know that it seeps through seals in how weather..... then I remembered that Aluminum issue from Blackstone.....
To be continued.....
[doublepost=1501955048][/doublepost]So after one very sleepless night, I went to the local hardware store and bought a new compression tester.
Here were the new results;
Cyl 1 - 185 185W
Cyl 2 - 165 170W
Cyl 3 - 165 170W
Cyl 4 - 185 185W
I also made sure my battery was fresh (I have a golf cart battery after all) as last time I'm pretty sure it was getting weak during testing.
So thank god looks like a bad tester. There is a possibility that the head gasket is leaking a little, as you can see 2 and 3 are both low by about the same amount so the leak could be between them.
Spark plugs are also showing a little on the lean side. Probably due to my tune being more for fall temps and not summer. So I'm still pretty spooked needless so say, so I pretty much put a moratorium on my right foot.
Some more good news, that oil sample I pulled in April has re-appeared, and I have another summer oil change to add to it. Oil leak also seems much slower after tightening the valve cover back down, so that is good.
Well, after two weeks of waiting, here are the two new results from Blackstone,
Okay. Panic can finally end. Looks like everything is on track after all.
Got some new purchases on the way to celebrate now that I know I don't have a lemon. JBR coilovers and a EONON head unit. Once in it's time for some more data logging (I can't do them ATM due to the bad right front side suspension, I'm getting tons of wheel hop so it's not safe/accurate anyways)
