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A friend who has the Profec B has overboosting in winter, might be his setup.
My Blitz DSBC type R runs the same boost between summer and winter, 100F to 50F here in Houston. I did discover that taking my pressure source from after the IC instead of from the turbo outlet results is better and smoother boost control. Have not tried it after after the throttle even though I have seen this in some installation diagrams. To reduce pressure pulsations and even up the boost readings to what the map sensor sees, I take my boost reading from the almost adjacent nipple to the map sensor nipple. |
Has anyone tried that AEM boost gauge/controller??
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Rich, you should try and set it to normal mode instead of the Overboost mode and post your findings!!! ;)
And Untill i can get my hands on the Blitz Unit, I guess I will stick with the good all Profec-B since its easy to use and works well with 2 solenoids... I will also hook up the lines on mine like in the diagram I posted above, since that seems like a good setup with vacuum presence for the side of the wastegate!!!:/ |
Rich,
Did you try and run the Profec on Normal External Wastegate Mode Yet??? Insted of the Overboost Mode!!! You should be the test Dummy:) and try it...report to see if the boost builds faster!!! |
Originally Posted by Max_Spd
Rich,
Did you try and run the Profec on Normal External Wastegate Mode Yet??? Insted of the Overboost Mode!!! You should be the test Dummy:) and try it...report to see if the boost builds faster!!! |
Originally Posted by FrankV702
Has anyone tried that AEM boost gauge/controller??
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Ok Rich, I am in the same boat here, its like snowing/raining and roads are full of sand and salt...but let me know once you try the Normal Mode, and report the spool up time and all that good stuff...Thanks...
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Originally Posted by GoodfellaFD3S
Use the greddy profec b instructions on their webpage, look at the 4th page down for install instructions for an external wg:
http://www.greddy.com/img/PHP/products/pdf/687.pdf For the 'IN' nipple on the solenoid, run a line to a boost/pressure source (I used a 1/8npt nipple on the pipe right off my compressor) and T that with a line to the side of the wg. For the 'OUT' nipple on the solenoid, run a line to the top of the wg. In this larger version of my current sig picture, you can see the boost/vac source I used, the solenoid is tucked in by the ABS in the pass rear corner of the engine bay. You can't see the wg lines, they are both s/s and run from the solenoid down to the wg. I used some monster zip ties to snug the lines on the subframe to keep them away from the manifold runners. https://www.rx7club.com/attachment.p...hmentid=214267 I see that you install a "T" from the side of your wastegate to the pressure/boost source of the turbo compressure. IS THIS CORRECT? |
Originally Posted by andre sinclair
Maybe this is what I'm doing wrong...the side of the wastegate on my install is going to vacuum of the intake manifold.
I see that you install a "T" from the side of your wastegate to the pressure/boost source of the turbo compressure. IS THIS CORRECT? |
profec B spec II sucks ass!! i dont know why but every single one i've seen or installed always seem to want to overboost? but the profec B on the other hand has always been great!
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Originally Posted by GoodfellaFD3S
I'm not a big fan of AEM electronics. I've seen enough problems with their ignition amp and ecu to stay away.
on topic, as far as MBCs go, I really like my Hallman rx-pro. Right now I don't have any reason to adjust boost other than its current setting of ~15psi. I think for 80 dollars you can't really go wrong. |
i would go with the apexi AVC-R. Mainly because of traction issues you tend to get with RWD powered cars especially if you are running increase boost. The function of setting boost by gears or by rpm will obviously help you to gain some traction of the line.
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