ip intall??

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Mar 16, 2011 | 11:08 PM

#61

84-6.9L

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From: Princeton MN

It has stayed above 1200 for no more then about 5sec. But pulling the tractor its hovers between 900 and 1050 at 55

Mar 17, 2011 | 10:12 PM

#62

Coalroller

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From: Hagerstown, Md

where is your pyo located at 84?

Mar 17, 2011 | 11:00 PM

#63

84-6.9L

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From: Princeton MN

Right after the right exhaust manifold on the turbo up pipe.

Mar 17, 2011 | 11:11 PM

#64

wreckinball

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From: Malahat/Cowichan Valley

wow so yeah at 1200, you are scorching in the cylinder.

Mar 18, 2011 | 09:22 AM

#65

84-6.9L

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From: Princeton MN

Not nessesarily. Sure the exhaust gets hot because it only gets the hot gasses. The piston can handle more heat then you think because it cools slightly with the fresh air charge and that piston is not at the same temp as the exhaust gasses. When i took it apart there was no evidence of scorching our melting. I'm not saying it is good for it but i think it can take it. The few times we have had pyros in our pulling tractors as soon as you leave the line the pyro pegs at 1600 and stays there til you idle them back at the end. I know it cant be good for them but we have never stuck a piston. I've never seen a melted piston the real danger is sticking a piston and that happens when they get hot and expand in the cylinder and the tollerances get to tight. I've seen manifolds so hot you could see right through them and the pistons are just fine but those have been honed out to be loose to allow for expantion.