6V92 Rebuild and hotrod thread

[Jimadams57]

You know it blows out of the south most of the time
So the trees are stronger that way when it come from an odd direction look out!
Some of the big one we have the branches are 12” in diameter and they’ll go throw your roof as well
Might think about building a roll cage cage over the bed
Or in the tractor world it would be a ROPS

[78bbird]

delete

[StarChief]

Originally Posted by Jimadams57

You know it blows out of the south most of the time
So the trees are stronger that way when it come from an odd direction look out!
Some of the big one we have the branches are 12” in diameter and they’ll go throw your roof as well
Might think about building a roll cage cage over the bed
Or in the tractor world it would be a ROPS

That’s why most of the problems I’ve seen in my area were from rare northerly winds, especially after neighbors had cleared some trees and left others exposed. Most of our trees up here have big rootballs w/ no tap root.
I just remembered the rare northwest tornado they had in Port Orchard back in 2018 that damaged a number of houses, but that was nothing compared to the devastation I saw in Washington, Illinois while I was visiting friends in Peoria a number of years ago. WOG members on here had their FC blown over in that storm.

[bwinter1946]

Glad to hear the damage is not real bad but, even a little damage is expensive and time consuming. Hope for better luck in the future.

[1984Lodge]

Glad the damage was not too bad, hopefully you can keep on your project!

An observation I came up with recently after working on a 6v in an 85 PT, I put jakes on this bus so I went through the whole setting the injectors and exhaust valves. I also had the up pipes off and noticed no leaking. This engine did not have the blue option tags on it, only the main tag and it says it is rated at 350hp. I looked at the injectors and they are 9B90s, the same as my bus that was rated at 330hp. So here is my observation, while driving my bus boost pressure will shoot up over 20, around 24 max. The 85 would never get to 20, max 18. My thought is the difference is the bypass blower? If you are reading boost pressure between the turbo and the blower then mine is peaking higher because it cannot get past the blower fast enough? This is my thoughts, I wish I had the blue data tag to confirm this, but I know someone else that has a 350hp 6v and I am going to see if he will get me a picture of his option tags, hopefully this will confirm my suspicions.

[mose]

Originally Posted by 1984Lodge

My thought is the difference is the bypass blower? If you are reading boost pressure between the turbo and the blower then mine is peaking higher because it cannot get past the blower fast enough?

Interesting thought. I read somewhere that the bypass just removes load from the blower which reduces parasitic HP loss. But that never made sense to me since a pressure drop across the blower shouldn't 'load' the blower but rather spin it.

You could temporarily move the boost gauge to an airbox drain (before check valve) and see what the boost is in the air box to confirm your suspicion.

[badandy]

The only difference is the bypass blower, I'm 94% sure of that after studying all the tags I could find in my photos I've taken as well as the ones on the internet. You're also going to get different boost levels with different turbos.

Now there's this:

[Big Al]

Yes the weather is finally going to get better. About time.

[1984Lodge]

Originally Posted by badandy

The only difference is the bypass blower, I'm 94% sure of that after studying all the tags I could find in my photos I've taken as well as the ones on the internet. You're also going to get different boost levels with different turbos.

Now there's this:

Gotcha, yea I was thinking the turbos also had something to do with it.

I need to look really good and see where the boost pressure line is connected. I really have never seen it while I was crawling around in there but I was not really looking for it.

[1984Lodge]

Originally Posted by mose

Interesting thought. I read somewhere that the bypass just removes load from the blower which reduces parasitic HP loss. But that never made sense to me since a pressure drop across the blower shouldn't 'load' the blower but rather spin it.

You could temporarily move the boost gauge to an airbox drain (before check valve) and see what the boost is in the air box to confirm your suspicion.

That’s a good idea Mose. That should tell me what I want to know.