Thinking about some mods...

[hyperlitenerd]

Let me re-word what is happening to make sure we are talking about the same thing. It usually happens in 4th gear at highway speeds, it will go up to like 14psi, and if I keep my foot in it, it will drop down to about 11psi.

[Kane]

Originally Posted by hyperlitenerd

Let me re-word what is happening to make sure we are talking about the same thing. It usually happens in 4th gear at highway speeds, it will go up to like 14psi, and if I keep my foot in it, it will drop down to about 11psi.

And you want to keep it at 14 PSI right? BTW - that is not called spiking/overboost (assuming you want 14 PSI) - that is boost fall off.

If that is the case; then a BC is for you.

[hyperlitenerd]

Originally Posted by Kane

And you want to keep it at 14 PSI right? BTW - that is not called spiking/overboost (assuming you want 14 PSI) - that is boost fall off.

If that is the case; then a BC is for you.

I guess I should have said that my car is 94 rx7 with a downpipe. I am trying to stay at the stock boost level of 10psi.

[Kane]

Originally Posted by hyperlitenerd

I guess I should have said that my car is 94 rx7 with a downpipe. I am trying to stay at the stock boost level of 10psi.

Ahhhh - now the problems start to come out - the second turbo is spooling too fast for the stock PCM settings.

Assuming all of your wastegate lines are stock and working correctly; an Apexi PFC or the like is going to work way better than a BC. A BC cannot take anything away - only add.

Sorry man.

[hyperlitenerd]

Originally Posted by Kane

Ahhhh - now the problems start to come out - the second turbo is spooling too fast for the stock PCM settings.

Assuming all of your wastegate lines are stock and working correctly; an Apexi PFC or the like is going to work way better than a BC. A BC cannot take anything away - only add.

Sorry man.

Really?? I was under the impression that it took over the waste gate control, so that you could change their function. I've seen people who have set them up to run 8psi on the stock twins. Now I am thoroughly confused.

[Kane]

Originally Posted by hyperlitenerd

Really?? I was under the impression that it took over the waste gate control, so that you could change their function. I've seen people who have set them up to run 8psi on the stock twins. Now I am thoroughly confused.

I am not an expert by any means; I have only removed 'em on the FD myself.

I know you can set them to run parallel; and it stands to reason you could sever all of the solenoids that control the wastegate and plumb it all through the BC... I am just not exactly sure how to do it wihtout running them in parallel.

[hyperlitenerd]

I saw this on the "other site"