| Go back to previous topic | | Forum name | Turbo/Nitrous Tech | | Topic subject | MBC or Wastgate Actuator (About earlier hesitation problem) | | Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=21831 |
21831, MBC or Wastgate Actuator (About earlier hesitation problem)
Posted by JustOne, May-10-02 04:06 PM
Ok I was getting a hesitation at WOT and at max boost. I changed my plugs and wires. Replaced the fuel filter and checked everything else I could think of.
Today I truned the boost down from 10psi to 7psi. And walla no more hesitation. So, this means that the MBC or the actuator was causing it. How the hell would the MBC cause my car to do that?
I also still have the 5lb actuator on the turbo. Should I upgrade to the 9lb or is it ok to run the 5lb and just turn it up w/ a better boost controler?
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21832, RE: MBC or Wastgate Actuator (About earlier hesitation problem)
Posted by Manek1, May-10-02 04:12 PM
i ran into a problem with MBC not bening consistent. just bought a new spring for my wastegate.....go with like the 10lb-14lb spring (you'll drop some psi from the actual rating).
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21833, RE: MBC or Wastgate Actuator (About earlier hesitation problem)
Posted by DarkOne, May-10-02 08:19 PM
Generally, the stutter is (*GASP!*) pulled timing, knock, and extremely lean conditions-induced. Basically, if it stutters, it's *BAD*.
I don't think there is anything wrong with either your MBC or your wastegate, i think you are running too much boost for your current setup of stock injectors and BVROG (boost-variable rate-of-gain) fuel pressure regulator.
Get yer injectors, retune yer DFI, GO!
Out-of-the-box STAR setups on 96+ cars SUCK.
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