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Thread: Question about JR boost upgrade kit?

  1. #1
    Inactive Member 93SolSi/GSR's Avatar
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    my bad I was miss lead it is the whole crank pulley, I called JR and talked to them about it, I can buy just the crank pulley and it is $270, I am gonna call around and see if anyone I know can get a better deal on it. does anyone her get discounts from JR or someone who carries them? the part # is 988-135

  2. #2
    Inactive Member BoostedEX's Avatar
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    JRCivic (Jim) on this board has developed a Stepper pulley to increase boost..... which is A LOT cheaper than the JR crank pulley.

    Give him a call:

    Motorvations Motorsports
    (205) 661-3600

  3. #3
    Inactive Member 93SolSi/GSR's Avatar
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    I have heard but I don't think i want that much boost.

  4. #4
    Inactive Member 93SolSi/GSR's Avatar
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    Anyone ever buy this? what psi does the pulley put out, I am thinking about it because I heard (not 100% sure yet) that is is 8 PSI, which is what I am looking for and all I have to replace is the SC pulley, but i'll have to remove the SC to change it but none of the other ass. will be affected, and it comes w/ everything, my only question is will the 94-01 fuel pump fit in my delsol?

  5. #5
    Senior Hostboard Member JRCivic's Avatar
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    My pulley makes approximately 2.5 to 3 psi MORE boost than you have now on a "B" series kit. Keep in mind that the larger the engine is, the LOWER the boost increase will be.

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