ct 26, whats the stock psi for a ct26 Options

[jcaron9gt4]

hey guys...i was just wondering what the stock psi is set at for a ct26...ive heard its at 7, but then ive also read somewhere that its in the 5psi range. does anyone know for sure?

[x_itchy_b_x]

Exactly

And the TVSV can only raise boost from what the WG is set at.
It can't lower it.

sorry,
I havent experimented with my mbc since it doesnt currently work. Ok, so if you use the tvsv and either turn it on or off, manually, then you would stay at 5 psi.

If your WG actuator is set for 8 PSI, you can't go below that, period.

You CAN boost below 8 psi. when the tvis is activated it wont allow the car to boost past 5 psi. This is called SAFE mode. As ive heard it called. When the engine detects knock or cold temperature of the coolant temp.

Your a little confused. its ok though. OK whatever the WG is set to is the lowest possible boost you can run.
when "safe mode" activates it turns off the stock boost controller TVSV and you run W/e the WG spring is.
when "safe mode" isn't on, normal driving conditions it bleeds off air so the actuator opens later, thus upping boost.
i suck at explaining things.

[alltracman78]

For a while I was swapping the damn things in my sleep.....

Exactly

And the TVSV can only raise boost from what the WG is set at.
It can't lower it.

sorry,
I havent experimented with my mbc since it doesnt currently work. Ok, so if you use the tvsv and either turn it on or off, manually, then you would stay at 5 psi.

If your WG actuator is set for 8 PSI, you can't go below that, period.

You CAN boost below 8 psi. when the tvis is activated it wont allow the car to boost past 5 psi. This is called SAFE mode. As ive heard it called. When the engine detects knock or cold temperature of the coolant temp.

Your a little confused. its ok though. OK whatever the WG is set to is the lowest possible boost you can run.
when "safe mode" activates it turns off the stock boost controller TVSV and you run W/e the WG spring is.
when "safe mode" isn't on, normal driving conditions it bleeds off air so the actuator opens later, thus upping boost.
i suck at explaining things.

Actually you explained it perfectly.

Look, here's the deal.
I don't know EXACTLY what the WG actuator is set to.
It will differer between cars regardless.
Elevation, barometric pressure, humidity, age, wear and tear, heat, air temp, and production differences ALL will effect exactly when it opens. And how fast it opens.

The BGB states stock pressure is from 8 - 11.8 PSI. Most completely stock ones I've see are right around 8.
My 93 Alltrac NEVER ran 5. It was 100% stock [except for a boost gauge], and always topped out at 8 [give or take. Maybe it was 7.5 in actuality, or 8.5].
When I ran the WG vacuum line to the intake manifold it bumped to 10. And stayed there.
All the way to 173xxx miles.

Adding a larger exhaust, a DP, or an intake will raise the actual boost pressure without you using a BC.
So will a better ic. Cold air does this as well.
A buddy of mine has a 90 Alltrac. He put a full Aussie 3" exhaust, a ARC TMIC, and an intake.
He was hitting fuel cut without a BC.
He was rather unhappy with that.

Don't worry exactly what it's supposed to be.
As long as you are 8 - 12 stock you are fine.
12 won't blow your engine either. Assuming everything is good of course.
I had my 92 @ 14 for a long time [some 92/93 ECUs are set to ~14PSI fuel cut]. Part of it on a Supra CT26.
Never had problems. Stock ATA TMIC.