"Y" Orifce Verification

[Jerryl]

I think this is a very overlooked part and realize this has been covered before.
Yes, I located the threads.
But, ........ does anyone know what the actual size of the orfice is on a HA car and post a pic?

My understanding is that this is a different PN on a HA vs an IC'd car.
IC'd cars are listed at 0.050 and the TA was smaller.

Anyway ...... reason is .... I am still questoning everything the previous "Duffus" did on this car.

To me, it makes sense to have a slighly larger orfice to have a more even boost increase to combat the "no lag instant HA boost". Weird that anyone would consider "slowing the rate of boost increase" just a tiny bit .... :biggrin:

 

[BRAD_PADGETT]

Jerryl- I can verify the the measurement you need but I have no clue as to what is a Y orafice. Specify and I will get your measurement. Brad

 

[Jerryl]

Jerryl- I can verify the the measurement you need but I have no clue as to what is a Y orafice. Specify and I will get your measurement. Brad

Thanks Brad!
The "Y" orifice is the plastic "Y" with the restrictor that is connected to the WG diaphram. It is indicated by the letter "Y" in the picture.

 

[BRAD_PADGETT]

Jerryl- Call me at 847-334-6225. Thanks- brad

 

[tb3]

Interesting. Is that measurement critical? Please post dimension so I can double check mine. Is it wise to "upgrade" to a larger one?

 

[Jerryl]

Interesting. Is that measurement critical? Please post dimension so I can double check mine. Is it wise to "upgrade" to a larger one?

The measurement is somewhat critical. It is my understanding that the orifice sizes for the HA, IC'd cars and TTA's were all different.
In my mind, a slightly larger orifice will provide some "traction control", among other benefits. :biggrin:

Some will argue this theory since the RJC boost controller does the exact opposite, but, these folk have access to bigger turbo's. If you run a larger turbo, you may want a smaller hole to reduce lag. With a smaller turbo and high converter, you may want a larger hole. It would be easy enough to try out this theory on a HA.
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