24 pounds

[billy_vk]

Just curious what people are seeing as a boost number on their JB4. I consistently am seeing 24 pounds on E30 Map 4. Excessive? I don't know so I gotta ask.

 

[GennyGuy]

Just curious what people are seeing as a boost number on their JB4. I consistently am seeing 24 pounds on E30 Map 4. Excessive? I don't know so I gotta ask.

I don't like for my car to really be above 22 psi. I think the fastest Stingers/G70s are 19-21 psi iirc.

 

[Corleone1]

I don't like for my car to really be above 22 psi. I think the fastest Stingers/G70s are 19-21 psi iirc.

I have the same experience. My is fastest With peak 20 and 18@6000.

To small turbos = backpressure and also lower timing make it slower.
It isnt just about boost. Less boost, more timing = cooler exhaust, less backpressure

 

[GennyGuy]

I have the same experience. My is fastest With peak 20 and 18@6000.

To small turbos = backpressure and also lower timing make it slower.
It isnt just about boost. Less boost, more timing = cooler exhaust, less backpressure

Agreed. To piggyback on this, what's also just as important is HOW that boost is delivered. Smoother, more linear delivery will usually run faster.

 

[Corleone1]

Agreed. To piggyback on this, what's also just as important is HOW that boost is delivered. Smoother, more linear delivery will usually run faster.

Yes, peaks gives also heat and I can feel that shifts be faster not to have peaks around.

 

[billy_vk]

Yeah, I may need to ask Burger for a little help.

 

[Corleone1]

Just curious what people are seeing as a boost number on their JB4. I consistently am seeing 24 pounds on E30 Map 4. Excessive? I don't know so I gotta ask.

To go down in boost you change FF from 50 like to 40 and test. You find it at Map6 a bit down. It affects boost in every Map