Springfield Flyer.

[tauruck]

Tech question on my build.

We all have these plenum chambers with the turbo pressure coming from one end.
I'm a student at this stage because turbocharging is new to me.

Air is forced in and the cylinders at the back will run lean because air doesn't make sharp 90* turns because we require it.
Is it a case of things stabilizing once full pressure is reached and the lean situation just a temporary issue?.

I'm a fan of Ardeema Braun and on countless occasions they've had the rear cylinders running lean on their nitrous v12.
They found out why but have persisted with the same plenum configuration.

Is there a baffle system solution to try at least alleviate the lean condition out back or are fuel maps adjusted to compensate?.

I'm in the process of building my plenum and once done I can't just make version 1, 2 and 3. One shot deal here.

Thanks in advance.

[Dynoroom]

You will find those with different opinions or ideas, but in a nut shell, this engine will have electronic fuel injection. This adds fuel at the base of the intake manifold at the inlet port opening. It is far easier to turn air than air/fuel, so even IF the air didn?t turn as well as you?d like the engine will run richer in those cylinders, not leaner. Remember, less air, same fuel = richer.
The bottom line is don?t worry, there are many turbocharged engines running a plenum manifold with a throttle body in the front, or even the side & the rear cylinders are not starved for fuel.
Mechanical fuel injection, & nitrous can cause other issues air flow wise, as you mentioned, but generally speaking, efi affords you the opportunity to correct any air fuel problems you may encounter.
The type of fuel (methanol, E85, nitro) you are running can cause more problems if you do not take care of the complete fuel system. These fuels are very corrosive, so make sure all fuel system components are stainless steel or anodized. If you ?pickle? the fuel system after each use this is less of a problem, and is good procedure no matter the type of materials you are running in the fuel system.
Carry on?

[fissionspeed]

Is there a baffle system solution to try at least alleviate the lean condition out back or are fuel maps adjusted to compensate?.

Most turbo LS guys just richen up the back two cyls a smidge. Some even pull a little timing.

[tauruck]

You will find those with different opinions or ideas, but in a nut shell, this engine will have electronic fuel injection. This adds fuel at the base of the intake manifold at the inlet port opening. It is far easier to turn air than air/fuel, so even IF the air didn?t turn as well as you?d like the engine will run richer in those cylinders, not leaner. Remember, less air, same fuel = richer.
The bottom line is don?t worry, there are many turbocharged engines running a plenum manifold with a throttle body in the front, or even the side & the rear cylinders are not starved for fuel.
Mechanical fuel injection, & nitrous can cause other issues air flow wise, as you mentioned, but generally speaking, efi affords you the opportunity to correct any air fuel problems you may encounter.
The type of fuel (methanol, E85, nitro) you are running can cause more problems if you do not take care of the complete fuel system. These fuels are very corrosive, so make sure all fuel system components are stainless steel or anodized. If you ?pickle? the fuel system after each use this is less of a problem, and is good procedure no matter the type of materials you are running in the fuel system.
Carry on?

Thanks Michael. You just saved me a bunch of stupid design work. I'll go with what I have.🙏🏻👊🏻👊🏻👊🏻👍🏻

[tauruck]

Is there a baffle system solution to try at least alleviate the lean condition out back or are fuel maps adjusted to compensate?.

Most turbo LS guys just richen up the back two cyls a smidge. Some even pull a little timing.

I watch Steve Morris on YouTube. He just plays with the settings but I create crazy stuff in my head. Thanks man. Much appreciated.

[tauruck]

Got to skinning my intercooler box.
There was no way I was making another one off mould.
I shaped the plug and used it as a male mould.

I came out with a few high and low spots but you fill and sand.

I looked for Carbon thinking I might still have some.
I found 3 rolls.

Here's a few pics of the faqbric draped over the box before skinning.

[tauruck]

No long stories here.

This is the semi finished part.
It needs a few layers of resin, sanding and decals.
The lid will be skinned next.

[kiwi belly tank]

I think you need some more diagonals in the cage area M8!
  Sid.

[tauruck]

 
Yeah.

[Stainless1]

Nice work Mike 

[floydjer]

Looks ready for gel coat..... ( one in every group)

[tauruck]

Nice work Mike 

Thanks Bob. God Bless you my brother.🙏🏻

[tauruck]

Looks ready for gel coat..... ( one in every group)

Jer, You could have waited until Friday. 🤣🤣🤣🤣🤣🤣🤣🤣

Love you and your humour.

[tauruck]

Intercooler box.

I gave the sucker two coats of Epoxy over the weekend.
Needs to be dry sanded. A tip for anyone attempting this deal.
Wet sanding fills pinholes with white powder you'll never get rid of.
When it's close enough it's ready for clear.
The lid needs Epoxy because I use peel ply on wraps. It gives a great surface finish and no sanding is required when adding additional
Epoxy or Clear Coat.

After that I'll drill the holes and mount the hardware.

[tauruck]

The hardware.

I made these collars by hand.
In short I used the drill press, sand paper and my trammelled vision to create a plug (modified O ring plug), a mould and the four parts.
These collars will be drilled and countersunk, slid over the stainless steel tubing and bonded to the tubes back and front as well as bolted
with some nice stainless steel hardware.

Some guy I asked for sponsorship said he couldn't see any "project" in what I'm doing. He as a six figure a month job. Must be Ray Charles.
I'm a good guy these days but brother I'd invite you to three rounds in the ring. I hope he's 6'1" and 200???. That's my fighting weight. I love them
like a crackhead with his pipe.