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What BHP / ft-lb do you get??

Discussion in 'XJ Technical Chat' started by TeflonTait, Oct 1, 2007.

  1. TeflonTait

    TeflonTait New Member

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    As it says on the tin, What Bhp and Ft-lb do you get from at the rear wheel of your XJ?

    And what engine work you had done? Once i've got my K&N Filters and Stage 3 dynojet fitted I'm thinking of a port and polish of the head, and maybe a lighter crank. Will post some before figures when i get on the Dyno.
     
    TeflonTait, Oct 1, 2007
    #1
  2. dwcopple

    dwcopple Active Member

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    bhp @ the rear wheel would be rwhp...just so you know
     
    dwcopple, Oct 1, 2007
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  3. dinoracer

    dinoracer Member

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    I had my 550 racebike dyno'd about 10 years ago. Engine work done was starting out with a fj600 engine. Tossed out pistons and installed wiesco 652 piston kit ( had to wait a while for them to be made). Engine balanced, Milled .025 off of the head. Intake and exhaust porting and matching of intake boots. Degree'd the cam's, Dynojet stage 3, Yosh and later specII exhaust. Stock FJ 600 carbs (the yosh pipe fell apart). It put out 68 hp on the dyno and do not remember the torque.I think it was in the 47ft lb's, but not sure. The bike did 11.7 seconds 1/4 mile and went thru the lights at 104 MPH. Fastest seca 550 out there............ Wait it was the only seca 550 :)
     
    dinoracer, Oct 1, 2007
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