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    Fox No Boost And Stumped

    Well, the ending was bittersweet and short lived. Long story short - the tune has made a huge improvement (thanks Steve), but yet the car has not been living up to its full potential. It's down on power. It feels about 100-150 hp short. I checked compression dry and wet on cylinders 1-4 (5-8 are...
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    Fox No Boost And Stumped

    Yeah, I'll get there once I have a chance to clean her up a bit.
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    Fox No Boost And Stumped

    Yep, never had a MAF on this setup. The MS ECU is speed density based... wanted to do away with the MAF.
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    Fox No Boost And Stumped

    "I would like to report that when you lifted at 2800rpm you were at 2psi. looks like it was just a blip of the throttle in half a second you had them spooled up into boost. :nice:" Nice! I was really going easy with the throttle.
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    Fox No Boost And Stumped

    It was a long time coming, but I'm thrilled that it's now in order. Reignites my passion for the project which I technically started about 7 years ago when I picked up the Cobra bone stock. Had a vision for what I consider the ultimate Fox body. It's probably 85% there now. After tuning, I want...
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    Fox No Boost And Stumped

    Got a break an unexpected break in my schedule today so did a quick trip around the block. And for those who grew up in the 80's or were old enough to know this one, you'll appreciate it...
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    Fox No Boost And Stumped

    Before any meaningful data logs, I just want to see it make boost... and I'm sure I can restrain myself from making too much boost. I've never done a hard pull with this car yet. Any time I start to make power, it feels wrong so I get out of it pretty quickly.
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    Fox No Boost And Stumped

    Foiled by a $2 part...
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    Fox No Boost And Stumped

    Looking forward to it. It all adds up when you think about it.... FPR was not seeing boost so not increasing FP and ECU was thinking it was down in low load area of the map so not adding fuel or pulling timing like it should have had it known the engine was getting boost
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    Fox No Boost And Stumped

    Yeah, that was the selling point for me, plus I always liked the idea of a factory like setup with the turbos down low and tucked in... downside are the plugs. #6 is horrible to get to. I'm an old school centrifugal supercharger guy, but over the years and a number of turbo cars brought me to...
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    Fox No Boost And Stumped

    The sensors were working fine but since they're fed with the tree and the tree is sourced by the manifold with a check valve in the way they had no hope in seeing boost. I always thought the car felt like it was getting some boost but never understood why I wasn't seeing any. With two gauges...
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    Fox No Boost And Stumped

    I have yet to verify this, but I think I just figured out the problem with not building boost!! Or should I say not seeing boost on the gauges. I was messing with the vac lines to trace the boost gauge/MAP sensor source and then leaned a bit further to get a look at the back of the intake...
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    Fox No Boost And Stumped

    Point I was making about the sensor is that there's a MAP sensor (inside the megasquirt) and a mechanical boost gauge (Autometer). They both say the same thing so I'm not questioning the MAP sensor being bad.
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    Fox No Boost And Stumped

    Of course... but I just want to make some boost first and then I'll hook it back up. :)
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    Fox No Boost And Stumped

    Steve - It definitely advances when I rev it, I've seen that before. I'm not convinced there's a disty problem, but wondering if someone saw some freak thing like that before tied to boost... yeah, I'm digging because I'm so lost here. I can try capping the turbo outlet. I have a cap with a...
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    Fox No Boost And Stumped

    Fastdriver... the gates are closed by the internal springs normally. It takes boost to open them which is why you need to run the vac lines to them. Without a vac source, they will remain closed and you will see boost all day long. But I am not which is the issue. As for my sensor - it and my...
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    Fox No Boost And Stumped

    I just went through my old emails with Matt Cramer over at DIY Auto (few years back) and it appears that I wasn't able to adjust timing properly when the TFI module was firing the MSD so I wired the MSD white wire direct to pin #36 and it worked. It's been like this since. This has me wondering...
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    Fox No Boost And Stumped

    And I've had massive boost leaks on my other turbo cars and they are very audible and I still get some boost.
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    Fox No Boost And Stumped

    madmike - I've been through all of that many times. The driver side gate is safety wired shut. The passenger gate is shut and there's no vac line connected. I also know it works as I previously supplied pressure and it opened at the set pressure (10 psi or thereabouts as I recall). Even still...
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    Fox No Boost And Stumped

    I fired it up, let it idle for maybe 5 minutes and started checking each log and they were all within 10-15 deg of each other (~400 F) so it would appear all cylinders are lit. As for ignition, I recall dealing with the guys at DIY Auto shortly after I purchased the MS ECU... we were having...