WH 8.1L Throttle Body Spacer, does it help?

[alvinc]

Q1: Has anyone put a throttle body spacer on the 8.1L WH engine? Did you notice an improvement?

Q2: Is there any benefit in conjunction with the Brazel UltraPower upgrade? Mike have you guys dyno'd any of the spacers (AirRaid, Trans-Dapt, etc)?

[alvinc]

Q1: Has anyone put a throttle body spacer on the 8.1L WH engine? Did you notice an improvement?

Q2: Is there any benefit in conjunction with the Brazel UltraPower upgrade? Mike have you guys dyno'd any of the spacers (AirRaid, Trans-Dapt, etc)?

[Brazels RV Performance]

Alvin,
We have not seen a huge improvement on the 8.1L running the spacers.If you do install one,plan on cutting the radiator shroud for clearance.

[strikeagle]

Got a trans-dapt from manufacturer for great price could not turn it down. Seems to go up hills with less effort and less throttle.
Have not tried it towing my liberty yet. But seat of the pants feels slight more torgue.
Did not have to cut the fan shroud but i did have to trim corners off the fan blades when i did my DIY air intake.

[TandW]

Charge-air passages that are common to two or more cylinders should be minimized in length to lessen the effect of detrimental supercharging on the system. Ideally, there would be a throttle plate and MAF sensor and filter at each cylinder instead. Because the air rushes to, and then suddenly stops at each cylinder, shock waves are propagated that can and will add and subtract or compound or degrade the charge pressure front at any or all cylinders at any rpm and any load. It cannot be controlled except by shortening the column of moving air. An analogy: think of the water hammer present in some homes that originates at clothes or dishwashing machine fill solenoid valves. When a tap is open at a sink the flow can be observed to suddenly change rate as a distant solenoid valve is cycled. Now think of 8 solenoid valves. Now think of how length of pipe alters the mass that is moving. And yes, air has mass. Save your money!!