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fuel pump overboost defeat..readjust it.
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Posted by Hairbear (more from Hairbear) on Mon, 6 Feb 2006 17:54:29 Share Post by Email
In Reply to: Re: my mistake on the PT!, Landjet [Profile/Gallery] , Fri, 3 Feb 2006 20:47:39
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As you probably know by now, it can be reached through the speaker grille and just turn is clockwise a few turns.

You can also remove the knee bolster to get under there and physically remove the overboost fuel pump cut switch and usind a mityvac on pressure, recalibrate the overboost switch to cut out at say 18psi.
Along the way, you prob need to upgrade to 24# (I've got 30# injectors to install from SPG9) injectors and a rising rate fuel pressure regulator. I highly recommend a remote fuel pressure gauge (I use a stewart warner electric). SPG9 has a drilled/tapped banjo bolt for the fuel rail or you can drill and tap one yourself...you'll need a 1/8" pipe tap.

Other than that, if you really want to start boosting the baby, you'll need a wide range O2 sensor to see where the lean parts are over the engine operating range. And if you get much over 220 hp I understand the clutch needs strengthening, the car could use a torsen or locking center diff, and, well you get the idea. Speed costs money...how fast do you want to go!

Good luck!

posted by 68.55.24...

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