profec B boost contoller
#1
Hey guys I just got here from the rx7 scene. I just bought the profec b and installed it. When I went to set the profec b it acted very wierd. First of all I never had to move the control nobsfor the high and low settings. All I had to do was adjust the balance. Also when I got into fifth gear the car would over boost to 1 bar(13 psi). I called a couple of shops about this and they told me that there were two things I could do. One open my wastegate 20%to 30% above stock. Two go with a slightly larger turbo with an external wastegate. I was thinking and wanted to know if I could just increase my fuel. If so will I need larger secondaries, a pump, and afuel controller or just a pump for now? Thanks in advance. Any help is appreciated.
#6
Yes, it wil allow me to control the boost, but only to increasee it above stock not to decrease it. With the way it is now the only thing that I can do is increase becuase it is at the min. setting in high and low boost positions.
#7
Originally Posted by 7mech' date='Jun 17 2002, 01:45 PM
Soory guys didn't mean to confuse you. I have a 90 TII. I have an N1 exh., air intake, a rb downpipe( waiting to install), fcd, and turbo timer.
#8
My max boost was at stock level (8.5psi) I believe. You see I couldn't be sure because all I had was the stock boost guage before I installed it. I got the boost guage a day after installation so that I could set it. Although I do think that even w/o the profec b I was overboosting in 5th gear.
#9
Originally Posted by 7mech' date='Jun 18 2002, 12:07 AM
My max boost was at stock level (8.5psi) I believe. You see I couldn't be sure because all I had was the stock boost guage before I installed it. I got the boost guage a day after installation so that I could set it. Although I do think that even w/o the profec b I was overboosting in 5th gear.
#10
I'm not familiar with electronic boost controller but i do know if you make the vacuum line too long from the waste actuator to the stepped motor or what ever greddy uses you'll have more spike and creep.
For example, i have a turboxs manual boost controller. When I made the vacuum line too long with the controller i would get spikes and a huge creep on fifth gear. The shorter the line between the signal and the actuator is , the better the boost control.
Does that unit have fuzzy logic? or that the profec a
C
For example, i have a turboxs manual boost controller. When I made the vacuum line too long with the controller i would get spikes and a huge creep on fifth gear. The shorter the line between the signal and the actuator is , the better the boost control.
Does that unit have fuzzy logic? or that the profec a
C