Here is my concept of a slide throttle
that I am building for my Kis Cruiser. This for a turbo down stream
from the compressor but I have since decided to make it larger to mitigate
the air friction losses in the long air pipe to the intercooler

Ok, now I am confused (again); we have been talking about 3.125" diameter 

throttles and your slide throttle is 1.75" diameter... but also my 
intercooler is only 1.9" diameter.

It comes down to the smallest component in the pipe, yes?
...Chrissi

Not entirely but mostly yes. Pressure drops add up in a serial
system just like resistors in series. I am changing my slide
throttle to a larger one. Probably three inches.

What intercooler are you using? Sounds a bit small. Sounds like the stock 
2nd gen 13B Turbo Two. 

Have you looked at the Kis area of the ACRE NL web site lately?
The pipe feeding the intercooler in this drawing will be made larger
even though the stock turbo compressor outlet is rather small. this way
I can change the compressor for a larger one and not have to change 
all the rest of the plumbing. BTW Able Ibarra uses about four inch 
plumbing on his turbo 13B 800 HP race engine.

Paul Lamar
 
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