Turbos and Mechanical 6.2s and 6.5 Questions

[longbedder]

For some Reason my calculator wasn't working last night. Must have been the operator.

But it reinforces exactly what I said. Putting 10psi on top of 22:1 is hardly hurting it. When 75psi on 17:1 can eat all day.

Yeah, I think I misunderstood what it was you were trying to get at initially.

 

[6.2Blazer]

I don't follow your math there. But the versions I was referring to are 75 psi on 17:1. And 10 psi on 22:1.

I would say there are other factors going on here besides just the boost pressure vs. combustion ratio. Correct me if I'm wrong but would say a 6.2 or 6.5 wouldn't survive long at 75 psi of boost even if the CR was dropped to 17:1.

 

[DEMON44]

No guys. I wasn't saying try to put big boost on a GM diesel. First of all you need The fuel to make boost. But let's not get into that.

The point was @ 10 pounds of boost. It DOEST MATTER IF THE CR IS 22 or 17. You are not going to hurt anything. At all. Pretty much ever.

 

[63chevyll]

No guys. I wasn't saying try to put big boost on a GM diesel. First of all you need The fuel to make boost. But let's not get into that.

The point was @ 10 pounds of boost. It DOEST MATTER IF THE CR IS 22 or 17. You are not going to hurt anything. At all. Pretty much ever.

Agree..good info guys. Thanks for breaking all this down

 

[ilikebmx999]

Hello all.

Anyone have any experience with adding to a turbo to a 6.2 or 6.5 with mechanical pump?

My questions are...

How much did you turn up the pump and Was the adjustment at the pump enough

Marine Injections? Worth it?

Did you advance the pump?

Was the throttle response right away or was there still some lag

Did it smoke excessive? Black?

And last...boost and temps. Anyone monitor exhaust temp VS boost and load?


Thanks in advance, I'm messing with a 6.5 mechanical pump now. And plan on adding a turbo but starting from scratch

This thread went off topic.

I have an m1009 with a 6.5 turbo setup.

I didn't touch the pump at all. It was smoking a decent amount stock at my elevation and most trails are above 8,000ft.

I'll probably go to 6.5 injectors for the clearance at some point. just using stock 6.2's for now.

It's pretty much in a touch of boost off idle. boost climbs pretty reasonably considering.

I have little smoke if any.

Most driving is 2-5psi. extended climbs or getting on it I can hit 10psi pretty easily. My egt's are about 400-500 in normal driving. Will get to 700 if i get on it.

 

[63chevyll]

Thanks for the response. This is what I've been working on.

 

[POORBOYK5]

post some pics of that slug!

 

[63chevyll]

That sum bitch didn't load...tried posting a video...runs bad ass

 

[63chevyll]

This. Still need to work on the distributor

 

[KirsL]

This. Still need to work on the distributor

Looks pretty cool. What's with the distributor though? Trying something new?

 

[Stomis]

Looks pretty cool. What's with the distributor though? Trying something new?

Yeah sarcasm me thinks maybe

 

[POORBOYK5]

Yeah sarcasm me thinks maybe

it houses the glow plug relay and distributes the glow plug wires.

 

[63chevyll]

it houses the glow plug relay and distributes the glow plug wires.

Hey. It distributes something

 

[KirsL]

Well it is something new then if its housing the glow plug relay and such, ha! It will certainly throw a lot of people for a loop when they first see it.