:driving: Turbo Boost Gauge readings

[nvno1]

Originally Posted by TitaniumTT

you have an engine that produces 85 psi of compression. That is below what Mazda considers the minimum for a running engine to produce. It's no wonder that your engine hunts, idles poorly, and pulls lower than average vacuum. It's becuase the engine is old and tired or improperly rebuilt. My ported RE makes 120-125psi of comp on all 6 faces and pulls ~15" vac at a 750rpm idle and it hunts a little. I bumped the idle to 1000 rpms and she'll pull 19" of vac all day and not hunt around much at all.

I think you're chasing a problem that doesn't exist. How did you run your comp test?

By the way, I noticed that you said you're adjusting things per the gsl-se FSM. That is WRONG! You need to adjust things per the FSM that the engine belongs to. If the motor came from a 86-86 TII car, that's the FSM that you need to be looking at for adjustment.

must be nice to have a freshly built motor...i miss those days (except the break in part)..the way i tested the compression was with a reg compression tester with the valve taken out and cold. i got 3even pulses. A friend of mines who builds motors told me the compression is okay , not great but okay. you noticed i was adjusting things per GSLSE FSM? where did to get that? i have the 86-88 FSM on hand.