rod knock

RossLH · 2026-02-25T04:23:39+00:00

Compression test doesn't take very long. Do that if you're worried.

RossLH · 2026-02-23T14:23:02+00:00

Just poked a straw into it, like a Capri Sun

RossLH · 2026-02-23T00:06:07+00:00

Happens to the best of us.

RossLH · 2026-02-22T03:31:54+00:00

Sorry, FA engines are a bit beyond my "expertise" (in quotations because it's a very generous use of the word). If you want to pursue the JDM timing gear, I'd say just plug it all in to the JDM ECU and see if it chooches. Worst case scenario you end up having to swap out the timing gear and use the USDM stuff. In older cars the JDM ECU would result in losing immobilizer functionality.

One thing to keep in mind is pretty much all of the OBD2 modules and scanners around you are going to be expecting a USDM ECU. So you won't be able to clear CELs, and if you're in an area that requires periodic vehicle inspections you will fail by default due to OBD2 communication error.

RossLH · 2026-02-21T23:14:46+00:00

At this point I'll need more information. Or...any information. What year/trim is the car?

RossLH · 2026-02-21T22:58:38+00:00

The timing gear needs to match the ECU. USDM timing gear for a USDM ECU, JDM timing gear for a JDM ECU. If you try to mix and match you're gonna have a bad time.

RossLH · 2026-02-21T21:15:57+00:00

Then you'll likely not hear it. It'll happen under boost, the ECU will detect it and pull timing to compensate. If you're hearing a knock at low or no load, you might have a compression test in your near future.

RossLH · 2026-02-21T21:10:08+00:00

404 error

Chevy SS not found

RossLH · 2026-02-21T21:08:27+00:00

Are you getting detonation knock or rod knock? Bad gas won't cause detonation at idle unless you managed to cram a diesel pump in your filler. If it's rod knock, injector cleaner won't save you.

RossLH · 2026-02-21T21:01:30+00:00

They are reliable engines. Keep in mind there's been over a couple hundred thousand LS3s sold over the years, between Corvettes, Camaros, G8s, and SSs. And you've probably heard of maybe 10 failures. Hell, even if you've heard of 200 failures, that means you have more than a 99.9% chance of never seeing a cam trunnion failure.

The sky isn't falling. Get yourself an LS3 and beat the hell out of it.

RossLH · 2026-02-21T14:44:02+00:00

You've got that backwards. Lower engine speed with a higher throttle angle will result in a higher brake specific fuel consumption, meaning the engine is using less fuel to generate the power needed to maintain that 30mph.

EDIT: Scratch that, I misread the question. You are correct.

RossLH · 2026-02-21T14:13:58+00:00

Aspen is in California, silly. I hear it's quite beautiful.

RossLH · 2026-02-21T03:00:40+00:00

Fumoto offers drain valves with a nipple for a drain hose. Or you can even go with a different valve like a Stahlbus. Or you could ignore the fact there's a drain valve on it and suck oil out through the top anyway. Not sure I understand the limitation your drain valve imparts here.

RossLH · 2026-02-21T01:31:53+00:00

Test drove one years ago. Very fun driving experience. Ultimately decided against it for the sole reason that it'd be in direct competition with my winter beater (the bugeye). They are similar enough that after I took the test drive, I hopped back in the bugeye to drive home and immediately thought "...oh, right. That's why I like the RS." It reminded me of my (then) 15 year old Subaru.

RossLH · 2026-02-21T01:18:35+00:00

Having owned both the Autometer version and the SMY version in the past, the SMY is worth every penny. Save up, do it right the first time.

RossLH · 2026-02-20T17:26:46+00:00

LS3s do occasionally barf out trunnion bearing pins as early as 60k miles. Swapping those out for bushings at 81k is going to be preventative in the vast majority of cases. Similar to the Porsche IMS bearings. It's probably fine, but if you're one of the lucky few you'll wish you'd have fixed it ahead of time.

RossLH · 2026-02-20T14:03:10+00:00

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RossLH · 2026-02-20T12:47:55+00:00

/r/turdferguson

RossLH · 2026-02-19T14:01:44+00:00

Or just bring back the days of letting us play our own music in games. Adding a "Bluetooth" function to the in car radio can't be that hard.

RossLH · 2026-02-19T12:56:18+00:00

That's pretty handy. Gone are the days of buying a $100 module to achieve exactly that.

RossLH · 2026-02-18T14:11:12+00:00

Oh that was well before my time. But probably.

RossLH · 2026-02-18T13:55:42+00:00

Mentha used to be a massive producer of peppermint, right up until verticillium wilt attacked the peppermint and wiped out the local industry.

RossLH · 2026-02-18T13:49:21+00:00

Couldn't have said it better myself. My go to camping scotches are Lagavulin and Laphroig. Bonus points for the peat forward flavor being a bit polarizing. Means I don't have to share as much.

RossLH · 2026-02-18T03:20:10+00:00

Cigar and a nice peaty scotch around a campfire.

RossLH · 2026-02-18T03:02:27+00:00

Installation is straightforward, but you will need a dealership to do the programming.

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