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4500+ RPM problems FD

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Old 09-06-12, 07:27 PM
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4500+ RPM problems FD

Ok, so since I purchased my 1993 FD its had a problem when I take it over 4500rpm, this happens in every gear. Once I go WOT it runs 10 psi of boost then around 4500 it drops to 7 psi then drops again to 5 and bounces between 5-6 psi till i shift. Does anyone have any insight on what the problem might be, Here is a video of it doing it because I'm sure seeing it will be easier to understand then me trying to explain in.

http://imageshack.us/clip/my-videos/...jebeqiujv.mp4/
Old 09-07-12, 11:15 AM
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No one has any insight on this? I could really use the help
Old 09-07-12, 12:34 PM
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Sounds like it could be a leak in a line of your secondary turbo. I'm not an expert but since you're pulling 10 until about when the secondary kicks in then it doesn't build past that, it could be a leak in the lines. Just my .02 but wait for someone smarter to input.
Old 09-07-12, 02:48 PM
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Ok thanks and when you say a line can you be more specific on the type of line?
Old 09-19-12, 01:50 PM
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Pretty new to FD's, but sounds like a boost leak somewhere.
Old 09-19-12, 04:06 PM
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From the 3rd Generation FAQ stickys.......

Troubleshooting

Turbo / Boost Problem Troubleshooting

https://www.rx7club.com/3rd-generati...-stuff-802060/

https://www.rx7club.com/3rd-generati...ambers-900195/
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