hey guys,

ever since i put my gauges in my boost pressure has always been wierd. I mean sometimes it will be 28 psi and others it will be 32 psi under the same conditions. Am i just not checking my boost right or ist my gauge messed up.

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p.s.
it's never been dynoed but i'm guestimating that it's putting out about 300-325 hp
the tranny's stock.

there is also an 89 dodge 2 wheel drive on diesel power mag called project rust bucket. i have almost the same performance parts than them but there are a few(like 2) that i don't have and there boost pressure is in the high 30's low 40's.

 

Rustbucket also runs nitrous, which is why their boost is probably higher than yours. He also has an 18.5cm housing, while your truck being a '92, most likely has a 21cm housing.

The first thing I would do is test the gauge to make sure that isn't the problem.

When you are seeing less boost, does it feel like the truck has less power as well? I would plan on tranny work soon as well. If you have 300rwhp with a stock tranny (I doubt you do) it is robbing a whole lot of horsepower, and making a lot of heat.

 

ok thanks, i put a 16 cm housing on my truck and like i said it has never been dynoed but by the parts i put on i was just guestimating and thanks for the help i will start planning on what i should do for my tranny rebuild.
prb said they gained 4 psi of boost just from a new canvertor and rebuilt trany