The project

[84 Sleeper]

I am having trouble trying to figure out what size turbo this is. Is there any markings that can tell me size and type? Any info would be helpful thanks

 

[84 Sleeper]

I'm also having an issue with the boost. My gauge is reading 15 and it seems like its got nothing left. Any suggestions would be appreciated. Thanks

 

[lrayzer]

Looks to be the Factory turbo, should be good to 20 PSI with good gas and right chip, It has been awhile but i think 15 is where the factory limited it with a stock chip.

 

[TType85]

Looks like a stocker. upgraded TA (stock appearing) turbos have a bit different inlet bell.

 

[84 Sleeper]

Would there be a marking on the turbo to specify size?

 

[SHADOWII]

The turbo appears to be stock w/an ext. gate d/p. What are you trying to accomplish? Get the most out of what you have, or upgrade? As stated previously, you can get 20 to 22#'s by adjusting the w/g. However, raising the boost w/o good fueling and ability to monitor is the road to disaster.
15-16#'s is usually max w/o engine knock/damage. Race gas or alchy is needed along w/good tuning for higher boost.
I don't remember a p/n on the stock turbo, only casting #s. Bison may remember the stock turbo size.

 

[84 Sleeper]

The turbo appears to be stock w/an ext. gate d/p. What are you trying to accomplish? Get the most out of what you have, or upgrade? As stated previously, you can get 20 to 22#'s by adjusting the w/g. However, raising the boost w/o good fueling and ability to monitor is the road to disaster.
15-16#'s is usually max w/o engine knock/damage. Race gas or alchy is needed along w/good tuning for higher boost.
I don't remember a p/n on the stock turbo, only casting #s. Bison may remember the stock turbo size.

Ya just trying to get the most out of it right now. I have knock gauge fp regulator and fr gauge and scanmaster getting ready to go in. I just wanted to know the limitations and see where to go next.

 

[SHADOWII]

Ok, now we have an idea of what you are looking for and can better guide you. Continue to ask questions as you move forward and don't get over-aggressive as you make your gains. Which can be difficult to do. The knock det. is your friend. W/o a wideband it's difficult to maintain a proper a/f ratio, so pay close attention to it and if you see it going red get out of it.