All Things Chev

[PeeBee]

The guys over in the states run these, they include water trap and aeration removal

https://pureflowairdog.com/

https://fassride.com/

https://www.thetruckstop.us/forum/th...-decide.12100/

Thanks Ralph, I have had a look and I think I am on top of the filtration, just need to mull over the fuel delivery system.

Now, finally tracked down Bullet cars as they had a Telstra outage last week, hence why no phone calls or emails, and here is what they have told me

1) the 300hp pump is actually closer to 275

2) boost ranges are dia 65 pulley - 18psi, dia 70 pulley - 14-15psi, dia 75 pulley 10-12. I am going with the 14-15psi option.

3) no body lift required - they are 100% certain of this

4) they have been supercharging these engines for 8 yrs and never had any feedback re engine reliability. They do still get warm though as would be expected and I am ready for that.

5) torque is 900NM at 14psi boost

[MB]

That’s all great news mate, happy days!
900Nm through your 85% reduction gears and you’ll be able to rip some tracks D9 styling




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[PeeBee]

The guys over in the states run these, they include water trap and aeration removal

https://pureflowairdog.com/

https://fassride.com/

https://www.thetruckstop.us/forum/th...-decide.12100/

@poindexter, I had a look and thats really interesting about the entrained air into the fuel. I think I might just pick up one of the Raptor pumps -don't have room for the air/water separator system, and whilst this unit does not remove entrained air, it would I think limit the turbulence inside the fuel lines that form cavitating air pockets I think. great bit of info. Thanks.

[poindexter]

What fuel pressure do you think you will run?

[PeeBee]

What fuel pressure do you think you will run?

I am guessing 5-8 psig at WOT to ensure there is no negative load on the pump. I am basing this on an idle condition now where i have 8, that falls to zero at redline revs and the engine is running out of punch, which might be normal, but am thinking it would be better to have a constant pre-charge on the injection pump right thru the range. So, if I base this on what I have now, I would want a pump that has a capacity of say 15psig and yet to know what the flowrate is though. My Optimiser taps out at 52lpHR. What do you think? This would basically give me a constant 8psi pre charge on the injection pump right thru the rev range.

Or better still a constant pressure pump at 8psig, but no doubt more expensive.

[poindexter]

I was thinking that 8psi may be a bit low. Some of the US guys run 25psi.
Have you any recommendations from Bullet or BD?
What will you do for the exhaust?

[PeeBee]

I was thinking that 8psi may be a bit low. Some of the US guys run 25psi.
Have you any recommendations from Bullet or BD?
What will you do for the exhaust?

Nothing about pressure from BD, only flow increase but Greg is playing that close so he can supply a pump I recon! I can ask the question of Bullet and let you know. Regards exhaust I am probably going to increase from where the cross over pipes join, and flare up to 4" from 3". I think there is a company in Aust - pacemaker? that makes a set of headers for this motor, so that will come later I reckon.

[poindexter]

I was thinking of doing exhaust design like this. Which is the same as what Marks 4wd sells for the LS conversions
AdvanceHeadersPatrolGU_01.jpg

[PeeBee]

That looks great. I doubt I would have the room though to be honest - GQ is very skinny. I will start off with the 3" then do the 4" expansion as noted.

[threedogs]

Hi all just talking with a mate who just brought a brunswick diesel GU 6.5 TD.
he asked me if he needs to laminate the front diff?
Plus as hes only had it a week it overheated last week when it was hot any suggestion?
Any imput would be great, TID|A