How different is the 1994/5 TBI 454 from the older models?

[Sam454]

I know that the fuel pressure is 26-32 PSI which is much higher than the pre 1994's ~14 PSI. are there any other major differences? I am looking at turbocharging it for better power and fuel economy in the mountains around my area, so I need to know how it will react to around 7psi of boost. all of the turbo TBI motors that I have seen are pre-1994.

 

[PlayingWithTBI]

I am looking at turbocharging it for better power and fuel economy in the mountains around my area, so I need to know how it will react to around 7psi of boost. all of the turbo TBI motors that I have seen are pre-1994.

I would think, with the smaller 94 - 95 injectors at that pressure, it would run even better since you'll have a higher differential between boost and TB pressures but, I may be wrong.

 

[Sam454]

I would think, with the smaller 94 - 95 injectors at that pressure, it would run even better since you'll have a higher differential between boost and TB pressures but, I may be wrong.

do you think the motor would handle the boost well? it already out tows the 6.5 so all im going for with the turbo is fuel economy

 

[GoToGuy]

How are you getting fuel economy? The intent is stuffing more air and fuel for an equal gain in horsepower.
It's a balanced equation. If you add more air you must add more fuel. Not enough fuel what happens= lean out, burn down. Are you wanting gross horsepower increase? Or do you want a flat rated power? Having 300 horsepower at sea level then climbing hills , gaining altitude turbo compensates to have 300 HP even at or over 6,000 ft.?
Have read any of the turbocharging books.

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