CK5
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6.2 What's it good for? Just about everything.
- Thread starter sreidmx
- Start date
Still love it! Changed the oil and air filter. This air filter is larger somehow?? But it's quieted the engine down some or changed the resonance, and the new oil always makes the engine way quieter, I wonder if this bent oil pan is causing it to raise the level enough to burn off some of the oil. I only had to add maybe a quart or less in 3-4K miles..
Well, since my truck was only running a down pipe off the turbo, I haven't heard the clackitty clack of the 6.5 for months now. But my package is arriving tomorrow to help with the exhaust noise.
How loud is it open down pipe?
Honestly, not as bad as you would think.
My whole fleet of 6.2/6.5's is straight piped , except the little red 83
I would rather have straight piped. The down pipe dumps under the cab, and creates a lot of drone. But I have full 4" exhaust showing up today.
Finished my exhaust last night. I can finally hear myself think, and I can hear my truck think lol. I've missed that clattery noise. It's soothing.
Like two skeletons ****ing on a tin roof ! Lol
So here is something odd that happened. Let me explain.
So while waiting for exhaust to get here, I was driving the truck with JUST a down pipe. Yes noisey, but tolerable. I thought I was having PMD issues due to the CEL coming on, as well as loss of power. After putting the exhaust on last night, the CEL went off and the truck is driving great now with normal power. Are these things related? Or just coincidental? I know some engines require back pressure, but I wasn't sure about these ones.
So while waiting for exhaust to get here, I was driving the truck with JUST a down pipe. Yes noisey, but tolerable. I thought I was having PMD issues due to the CEL coming on, as well as loss of power. After putting the exhaust on last night, the CEL went off and the truck is driving great now with normal power. Are these things related? Or just coincidental? I know some engines require back pressure, but I wasn't sure about these ones.
Engines do not, have never, nor will ever require backpressure
So just a coincident that I was having issues? I still have a new PMD, I just need the relocation kit.
With no exhaust you were most likely over boosting and throwing a code
But wouldn't the waste gate controller adjust itself accordingly?
@GWeakland620, do you have a boost/pyrometer gauge set yet? If not, get one.
That makes a lot of sense. I'll get a scanner on it tonight and check it out.
But wouldn't the waste gate controller adjust itself accordingly?
@GWeakland620, do you have a boost/pyrometer gauge set yet? If not, get one.
No not yet. I do have it, just not installed yet.
no, and by overboost it's just a quick spike before the wastegate pops it's enough to throw a code , and possibly throw into limp mode .
I don't mess with electronic 6.5's a whole lot , but changing the exhaust on any turbo 6.2/6.5 can vastly change the spool rate . smokey and pattys blue burn are both identical motors, same pump , same injectors , same turbos . The only difference between them is exhaust size the Smokey has the "stock" banks exhaust with no muffler
Pattys burb has a custom built 4" straight
Smokey will hit 15 psi where as the Burb will do nearly 20 psi
Wow, didn't realize exhaust effected the turbo that much.
