Need help to understand what to do reach max speed on 91 SHO+

Discussion in 'Engine, Intake, Exhaust and Drive Line' started by mavericksav, Nov 4, 2018.

  1. mavericksav

    mavericksav SHO Member

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    stock exhaust, run only one way (it was hi-way) to my home
     
  2. mavericksav

    mavericksav SHO Member

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    215/55/16 I used GPS to check speed
     
  3. mavericksav

    mavericksav SHO Member

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    why? top power is at 6200 rpm and my top speed only at 5400-5500 rpm
     
  4. luigisho

    luigisho SHO Member

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    Unless you increase output substantially or reduce the physical characteristics of the vehicle itself (weight,shape/aero, etc) the extra whatever is missing is not enough to get you to 160. You need close to 300hp without changing the vehicle.

    https://robrobinette.com/top_speed.htm
     
    SHOdded likes this.
  5. zak

    zak SHO Member

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    The newer (96 to 07) SHOs have a bottom engine cover. Should bolt on if you've already done the Gen 3 subframe upgrade. You will need to also cover the space from the lower bumper bottom edge to the bottom cover. Take the windshield wipers off, tape all the seams, etc.
    Also, the rear bumper cover is like a parachute on these cars, might fashion a cover there as well

    Also, to sperold's comment on Ernie's engine, it was a 90 mm overbore of a 3.0 L block (not a 3.2L) that he "cheater destroked" by using undersized rod bearings and doing a slight offset grind, this got him back down to 29XX cc's which he needed to be legal in F Production
     
    Last edited: Nov 19, 2018
    SHOMON and SHOdded like this.
  6. firebat45

    firebat45 SHO Member

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    You must either mean 96-99 SHO or 96-07 Taurus
     

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