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i plan on installing a midpipe and catback in a few weeks, right before i go to the strip. i doubt i'll have time to port the wastegate before going to the strip, and i was worried about boost spike w/ the midpipe and a non-ported wastegate for a few runs. should just leave the midpipe off until i port the wastegate? since i have a PFC (able to control boost), i would think it would be fine for a few days as long as i didn't up the boost with the commander, right? i will have more than enough time to port the wastegate after the races, so that is definitely going to get done. i just don't want to take any chances with my engine while i'm pushing it hard. TIA
mods so far: downpipe, and one lardass sitting in the driver's seat trying to lose weight. |
if you only have a dp mp than the boost should be ok, if you add an intake or cat back and it might be kinda borderline
mike |
kahren has dp .mp, stock catback and its fine
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had full exhaust with tuned pfc on blacky..
and only saw 1psi of intermittent spike at wot.. id work on fuel before concerning yourself with the wastegate |
thanks for the input guys. I just have a limited amount of time before i go to the strip (less than 2 days), and i didn't want to start something that i couldn't finish in time.
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I have intake, D.P., M.P., Racing Beat cat back(which is pretty conservative as far as exhausts are concerned) and a PFC. I was worried about the same issues so I turned the boost down to like .70 from .85 and I turned the wastegate cycle % setting (can't remember what it's called) way down also. Mine has CREPT to like .94. no noticeable spikes though. KAHREN has a set up for this problem but I haven't decided between that or a pop off valve yet. just thought I'd let you know.
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Originally Posted by jackdhammer' date='Apr 10 2003, 06:33 PM
I have intake, D.P., M.P., Racing Beat cat back(which is pretty conservative as far as exhausts are concerned) and a PFC. I was worried about the same issues so I turned the boost down to like .70 from .85 and I turned the wastegate cycle % setting (can't remember what it's called) way down also. Mine has CREPT to like .94. no noticeable spikes though. KAHREN has a set up for this problem but I haven't decided between that or a pop off valve yet. just thought I'd let you know.
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I don't have the Datalogit. I guess I can right all that **** down though. If anyone has a spread sheet for the maps that would be killer.
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That be cool man. https://www.nopistons.com/forums/pub...#>/biggrin.png
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What kind of car do you have? Is this a FC or a FD? I don't want to make the wrong assumptions
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