I am new to the whole turbo world. "virgin booster".
Just got done with the 7MGTE swap in my 87 NA. Everything appears to be working normally.
Boost gauge reads about 17 vac at idle. Seems normal. I have read that if you rev the engine in neutral it will not make boost, why not? Because there is not load on the engine right? But still, why? Is it because the engine process the air through it so fast that boost has no time to develop?
Anyhoo, took the supra out for a spin last Sunday (no smog, no registration, no insurance) in first gear I really don't see too much boost but the boost gauge comes up to about zero vac. In second I see some and as i raced the engine up to approx 4,000 rpms the boost gauge maxed out at about 6-7psi (normal for stock), but then the boost started to fall. Why???? Is that normal?
Went home and inspected intercooler plumbing. Found a small tiny crack, got that fixed, but haven't driven it since.
It feels plenty strong as I got her up to about 55 in second gear pretty damned fast with only about 1/2 throttle.
Feel kinda stupid asking about boost, but I am always willing to learn something about cars.
Thanks.
Just got done with the 7MGTE swap in my 87 NA. Everything appears to be working normally.
Boost gauge reads about 17 vac at idle. Seems normal. I have read that if you rev the engine in neutral it will not make boost, why not? Because there is not load on the engine right? But still, why? Is it because the engine process the air through it so fast that boost has no time to develop?
Anyhoo, took the supra out for a spin last Sunday (no smog, no registration, no insurance) in first gear I really don't see too much boost but the boost gauge comes up to about zero vac. In second I see some and as i raced the engine up to approx 4,000 rpms the boost gauge maxed out at about 6-7psi (normal for stock), but then the boost started to fall. Why???? Is that normal?
Went home and inspected intercooler plumbing. Found a small tiny crack, got that fixed, but haven't driven it since.
It feels plenty strong as I got her up to about 55 in second gear pretty damned fast with only about 1/2 throttle.
Feel kinda stupid asking about boost, but I am always willing to learn something about cars.
Thanks.