Awesome guys! Thanks for all your help!
This thing actually seems to spool quicker than I expected. Now that I know what to check I'll see what I have, maybe I did get lucky & have the 18.5cm. I can hear it pretty well with the stock air box. What's the stock boost on the 92? I'm bumping 38psi on my 06 & I know the 1st gens were much lower than that.

 

A stock intercooled truck should be getting between 10-13psi boost.

 

hahahahahah
i see 22psi stock
i see 35psi now

 

You also have to remember the previous owner might have switched the housing, it was (and still is) a common mod back in the day

 

I have the stock housing. In fact, everything on the truck is stock, even has factory exhaust. It shows 246k on the clock by I can't see that kind of wear on the truck. I mean, the factory exhaust should have been long gone. Every hanger & clamp is original so I know it's never been hacked. Has the Chrysler star on the muffler! I believe this to be an all original untampered - with truck. The speedo is wacked, it bounces all over & the odo clicks mileage off like a stopwatch so maybe it's been like that for a long time & racked up a bunch of fictional mileage. I have the stock downpipe from my 06, maybe I can make use of that somehow.......

 

i looked into using teh stock exhaust from my 06 on my 89, its pretty much useless, I went with an expandit 4" straight pipe kit and am happy as can be. There is a write up on here that I did.

 

If the odometer is still working it can't have too many miles.

 

Both the odometer & trip meter still work!

 

Hey if you are looking for a low or no buck up-grade. I took the headlight ring off the passenger side head light. Went under the hood and cut out the radiator support panel around the head light to the turn signal. I then trimmed the air filter air box so that it was still supported but well opened up so that the filter could get all the air it could. Not just that little air horn that it came with from the factory. That was the very first thing I did and exhaust was next~! Then the money began following from my pocket – Smile…

 

A non I/C truck should see more boost. Smaller turbo, bigger injectors, and no intercooler (less restriction) means more boost.

Are you still running the stock H1C? If you are, at 35lbs of boost you are just pushing hot air, you're out of the turbos map range.