2004 6.0 replaced truck manifold with 2009 corvette L3 manifold with 39lb injectors

[oldgreaser]

2004 6.0 replaced the truck stock manifold with 2009 corvette L3 manifold with 39lb injectors and 90 MM throttle body. I couldn't close the hood on the classic car I'm working on. Has anybody one installed this manifold on their 6.0 truck engine? Would anyone have the injector data or a tune for this setup. Any help would be appreciated.

[SiriusC1024]

Did you put rec port heads on the 6.0?

[oldgreaser]

It has the stock 317 heads.

[oldgreaser]

Installed the rec to cathedral adapters.

[Alvin]

Installed the rec to cathedral adapters.

Those seem to get by on a NA application but they are a terrible choice for this.

Have you considered a LS2 car manifold? same thing as what you are doing and ports are already correct.

[SiriusC1024]

Those seem to get by on a NA application but they are a terrible choice for this.

Have you considered a LS2 car manifold? same thing as what you are doing and ports are already correct.

I'm interested in seeing what the VE table looks like with the ls3 adapted.

[blindsquirrel]

I think I see where this is headed...

Attachment 156483

[Alvin]

VE from cammed 4.8 with LS3 manifold and adapter plates. Swapped into a lexis SC400 used in 7-24 hour races in that Lucky dog racing league.

I think undoubtedly it would perform better with a LS2 or FAST cathedral manifold but it did put down reasonable numbers. Unlike using the adapter plates with LSA swaps it did not have any of the odd severe tip cold stumbles/intake backfires.

I don't choose the parts customers bring in.. They would be a lot better off if they let me.. but it is what it is.

Capture.JPG

This VE is pretty flushed out.. Customers like this will often see periods of say 6000 RPM at super light 20-40kpa while racing.. Everything has to be right.. not just what people normally see driving aggressively on the street.

[SiriusC1024]

When I had that image opened I tried panning it around lol. Nothing about the adapters stands out in that VE does it? I was thinking certain rpm's would show signs of air stalling. They seem to work decently.

Thanks for the post.