HELP - Turbo ID

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Is there any way to determine what size housing is installed without tearing the system apart? The numbers are between the 2 housings and I can't get a good angle to read them. Tried a small mechanics mirror but it wouldn't work either. I bought the truck used and it has a Banks Power Pack installed but I'm not sure what all that involves. I plan on getting PW injectors soon and may need to also change the housing.
Any Suggestions? Is there any way to measure the different sizes from the outside? What exactly is different on these things? Is it the inside deminsions or the housing itself? As you can tell, I am just learning about some of this stuff.

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Stan
93 2WD extended cab, Banks Power Pack, K&N Air Filter, Auto w/4. 10 rear with gear locker, US Gear Exhaust Brake, 3. 5" Exhaust, 5K air bags, Boost/Pyro/Tach Gauges, Green/Silver, 146K

 

[Archive]

If it is a Banks system the housing will be a wastegated 14 cm2.

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90 W250, 5-speed, isspro gauges, 16 cm2, K&N, Borgeson shaft

 

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No waste gate visible.

Stan

 

[Archive]

Well, OEM would be 18 cm2.

[This message has been edited by Matt S (edited 09-15-2000). ]