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Old 08-18-2006   #1
Gravy
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Join Date: Apr 2006
Location: Saint Cloud
Drives: 91 Dodge Stealth RT/TT
Posts: 743
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FMIC Pipe Question

I pulled a Conquest FMIC from a car not long ago, and after installing it on the vehicle, running the pipes. There seems to be a noticable longer lag period. I know the longer pipes, and being rubber doesn't help.

But i want some expert advice as to what i'm feeling is just the extra space in the system having to fill up, or maybe a boost leak.

To state the obvious, i mounted the FMIC on the front of the car, more twards the passengers side, so the edge of the intercooler is right at the divider on the 1g's for the pasengers side fog light. I took the hose from the turbo, routed it through the small hole right next to the radiator overflow bottle, or where it should be(dropped the overflow bottle 2 inches). I then put the air right into the passengers side entry to the intercooler. I used the metal U pipe off of the Conquest, it's more of a C shape, but with 4 inches of ruber hose from the turbo outlet it conects to the metal pipe, runs behind the headlight(don't ask) and down to the intercooler. The return line i ran under the bumper suport and around to the stock location all with rubber hosing from the stock eclipse piping, and the Conquest. I checked all hoses for leaks or cuts and found nothing.

The problem, the car boosts to 12 PSI at around 4,100 rpm and doesn't creep up at all. Before i was pushing around 15 psi on the stock SMIC all day long. Take of is a noticable change, but top end seems to be more pepy. I figured the FMIC is cooling better then the stock system, and seeing small results from this. But why such a large turbo lag? Could i be having a boost leak somewhere and just not know about it? Or is the extra piping around to the stock location really causing the trouble?

I'm not set in stone on my path for the pipes. If anyone has a better idea, please let me know. I"ll try and get pics up on sunday or monday to give a better idea of what i'm talking about.
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