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When I jumped up to 200/30's from stage 2 split shots i tried Gearhead tuning first...........talk about total dissapointment. There was no power and noisy as heck, very little customer sevice and I was told Tony does not tune 7.3's anymore and a local guy comes in and does it. From there I cut...

The 180/80 is oil hungry and is known to be hot and smokey so honestly if you change injectors the 200/30 or 200/80 hybrid is probably the best choice.

Work Turbo made me a custom GT4288R which has a 63.5/88 billet 11 blade compressor wheel. It spools about 300 rpm quicker than the GT4294R which has a 70/94 cast compressor wheel. Of course any custom GT42R turbo is not cheap but its well worth the money. Honesty it all comes down to what you...

Keep us updated i'm curious if more efficiency and power can be gained.

I have always wondered about those B code springs but the more I researched the more confused I got. Most responses were you lose power, driveabilty, and etc, very confusing.

The KC300x will work great but you most likely will need to detune the 238's a little bit. Please don't take as the only turbo that will even remotely work is a T4 based turbo. Any turbo can be made to work with those 238/80's including the stock turbo, it just takes some tuning adjustment and...

Some of us don't even have a sxe or give a rats ass about them but they have their purpose and do a great job at it. I do know that 238/80's do not play 100% well with drop in style turbos. Now with that said the 238/80's can be pulled back to work just fine with the drop in turbos. In this case...

If turbo response is number one on your list then the 364.5 is your best choice, if not then use the 366. Plus you have a manual trans which will work better with a smaller turbo.

Honesty at that point the T4 based 364.5sxe is a great choice.

For sure go the 364.5/366 T4 route. I run a GT4294R with .90 housing it starts coming on at 1700 rpm on my daily driver setting. For sure its a little lagy up to 1700 rpm but clears up the 238/80's to a light grey haze on the drag ripper setting and the power is just plain nuts.

Don't see how that will fit in our trucks.

You need air and fuel to make power plain and simple, any time you can add more air and burn more fuel you make more power. I remember back in early 90's when turbochargers and superchargers were getting popular with the fox mustangs, many experts claimed ported heads and aftermarket heads do...

One company has a CNC program for $1800.00 but I don't know the specifics about it.

I agree aluminum heads would be nice but 5-6K is way low considering how small of a market it is and how much it costs to brink that kind of a product to production.

For sure will be interesting to hear what the BB cartridge does for response and noise.

The GT42R has a decent whistle also, not the 38R noise but not quiet over 2000 rpm. It sounds like a stock turbo whistle but slightly louder. I'm sure it spools quicker than your 472 but I don't see the BB giving you the gain you want out of the 472.

My GT4294R(70mm inducer) with .90 turbine housing spools decent but is still slightly slower than the 38R with light pedal effort. If you give it some decent pedal it comes on good but light pedal is for sure laggy.

Looking for a set of 7.3 headers in good shape. [email protected]

Heck my Swamps 200/30's smoke like mad and idle rough at start up here in Michigan. They clear up really quick once moving and idle smooth.

Love the 05-07 front conversion and hope to convert my 2001 soon.