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Under WOT Car feels like it hits a rev limiter at around 4k rpm

posted by  B230FTENTH on  Sat Oct 27 14:50 CST 2018
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

Basic information about the car:
1993 Volvo 940 Turbo Wagon (B230FT) LH 2.4
Motor had a budget rebuild that entailed the following:
All new seals on bottom and top end of the motor
New connecting rod bearings
New Rings
Turbo Rebuilt
Valves Re-Shimmed (Was causing loss of compression

So when i go WOT the car pulls correctly up to around 4k rpm then it feels like it hits a wall and wont shift until i let off the gas. I have done some reading and people say that the fuel system may be the cause? Any help would be greatly appreciated! Thanks








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    Under WOT Car feels like it hits a rev limiter at around 4k rpm

    posted by  james_a_sousa on  Sun Oct 28 19:11 CST 2018
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Thu Oct 23 18:51 CST 2014
    [RELATED]

    Take a look in your air cleaner. In our '90 744 TI, the foam rubber liner in the top of the filter box turned tp powder and clogged the air filter.

    Also, there is a couple of pics of animal nests in air cleaners - this is the right time of year for animal hi-jinks.








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    Under WOT Car feels like it hits a rev limiter at around 4k rpm

    posted by  Chris Mullet on  Sat Oct 27 19:33 CST 2018
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    last visit: Fri Oct 24 09:08 CST 2014
    [RELATED]

    Some people used to report the air duct just downstream of the air filter would collapse under heavy throttle. I don’t know if that was happening on either the turbos, N/As, or both.
    --
    Current rides: 2005 Volvo S80 2.5T, 2003 Volvo V70 2.4NA, 1973 Volvo 1800ES (getting ever closer to road worthiness)







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