Aidan's loose oily bunghole actually runs a track lap
They tell me that when you hear it, you'll know it.
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Thread Starter
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
BUT I DONT KNOW WHAT IM SUPPOSED TO HEAR.
I'm pissed at myself for not running them sooner. They are in the car and ready to go. I was just too excited to hook them up.
I'm pissed at myself for not running them sooner. They are in the car and ready to go. I was just too excited to hook them up.
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Joined: Sep 2010
Posts: 8,146
Total Cats: 1,087
From: Lake Forest, CA
Should have had me listen to them, I know what DET sounds like lol
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Thread Starter
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Going to go "borrow" one of these: https://www.harborfreight.com/High-R...der-60695.html
Probably wont work, but I'd like to take a peak down the spark plug holes. Even if it will just make me sad.
Probably wont work, but I'd like to take a peak down the spark plug holes. Even if it will just make me sad.
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The det cans I know are hearing protection muffs with stiff woven plastic tubing to both ears if using a Y through the firewall to a short piece of flattened over copper pipe bolted to the block. Detonation is said to sound like dry rice rattling around in a can or well, knock I guess. Kind of scary to be road tuning wearing earmuffs I suppose, but AFAIK knock sensors really are not that good as far as performance tuning is concerned. I don't really know how or why OEMs use them but I guess they are alright for stock engines and ECUs.
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I would describe the knocking I've heard (on my high compression subaru, so who knows if this will help you) as a large wooden maraca filled with a few small ceramic *****. Imagine this maraca shaking, and the little ceramic ***** hitting the inside walls of the hollow wooden maraca.
went to full time e85, never knocked again, and it was tuned very aggressively. i miss that car.
went to full time e85, never knocked again, and it was tuned very aggressively. i miss that car.
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Joined: Sep 2010
Posts: 8,146
Total Cats: 1,087
From: Lake Forest, CA
This would've been good to know before I sat you in the right seat of my car to listen for det with my headset.
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Thread Starter
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Lol. I meant I've heard the video before. I never heard knock (or what I assume knock sounds like) on your car. But the BPs all sound noisy.
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Have you laid out all four knock cylinders in MLV on the same chart? This is how I differentiate between real knock and engine noise when I'm setting the noise filter on a new build.
On det cans/headphones, valvetrain and engine noise is rhythmic. Detonation is not. That's the easiest way to differentiate.
On det cans/headphones, valvetrain and engine noise is rhythmic. Detonation is not. That's the easiest way to differentiate.
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Thread Starter
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Yes I am overlaying them. And I found a few places that I believe to be knock. Thanks for all the advice guys. I think I just rushed into everything. Boost bug hit hard and I needed more.
I have reset back to wastegate pressure. Have fresh plugs and Det cans. I'll be starting from the beginning and working my way back up.
No e85. I've gone through 50 gallons of gas in 2 weeks let alone e85.
If I can get to 20psi without Det I'll be happy. That was plenty fast.
I have reset back to wastegate pressure. Have fresh plugs and Det cans. I'll be starting from the beginning and working my way back up.
No e85. I've gone through 50 gallons of gas in 2 weeks let alone e85.
If I can get to 20psi without Det I'll be happy. That was plenty fast.
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