Max Boost

[RUFFSTUFF]

2019 GT2
JB4 w/fuel wires
BMS intake
Denso Plugs (.022)
JB4 Connect Bluetooth

What max boost would be expected on Map 0, 1, or 2 via the JB4 connect app?

Thanks.

 

[Terry@BMS]

That depends on your stock boost at the moment, which will vary based on weather, charge air temp, and other factors.

 

[RUFFSTUFF]

That depends on your stock boost at the moment, which will vary based on weather, charge air temp, and other factors.

Terry, I want numbers!

 

[Shrikecorp]

As Terry noted, it's dependent on multiple factors. For one real world example, I often get logs with 15-16 psi for lengthy bursts while on Map 2. Map 3 a bit higher. Weather in 40s-50s, near sea level. Mods noted in my sig. YMMV.

 

[Tonkabob]

That seems low for a 92/93 octane map. Seems it should be 17-18 PSI.
Is map2 only +2 psi?

 

[brancky3]

That seems low for a 92/93 octane map. Seems it should be 17-18 PSI.
Is map2 only +2 psi?

Most Stingers run about 11-12 psi stock. But, that can changed based on weather and all that

 

[Shrikecorp]

That seems low for a 92/93 octane map. Seems it should be 17-18 PSI.
Is map2 only +2 psi?

I'm also not often able to keep my foot in it... open road is a rare commodity around here.

 

[Tonkabob]

Most Stingers run about 11-12 psi stock. But, that can changed based on weather and all that

I've seen 12-14 PSI stock (cold temps 12, 14 hot) when measured with gauge. My reading on my stock dyno run was just a hair under 14.

 

[Terry@BMS]

No shortage of JB4 customer logs posted around, the N54tech thread probably has thousands of them.

 

[Shrikecorp]

I've seen 12-14 PSI stock (cold temps 12, 14 hot) when measured with gauge. My reading on my stock dyno run was just a hair under 14.

I've seen bumps up to that range without JB4, but not consistent. Typical little roll-on log: