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Thread: Beppe London JDM DC5 Type R K20A JRSC 7.8psi

  1. #31
    Senior Member Turpid Porpoise's Avatar
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    Quote Originally Posted by beppe View Post
    Just ordered a Mercracing Aftercooler and 2.8in pulley from Jose

    should be around 11psi on the DC5 R crank pulley

    how much psi and stock sensor see?

    how much power gain you guys think it will give? only on 7psi now and dynoed at around 280whp
    At 11 psi with his aftercooler I could see you around 320-330 whp with a good tune. The stock map sensor can see 14 psi I believe. I might be wrong.

  2. #32
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    The stock sensor on the 8th gens maxed at 10-11 psi. A competent tuner should be able to make the stock sensor work even if it goes above 11 psi a tad since it's a supercharger and all linear.

  3. #33
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    thanks Guys..

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    ...
    Last edited by beppe; 05-30-2014 at 07:07 AM.

  6. #36
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    I don't think that's all that inaccurate. The stage 2 supercharged 8th gens at dyno days I've been to usually make around 290hwp, and that's with a bit more than 7.5 psi, they're closer to 9-10, so I think that's pretty spot on.

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    Last edited by beppe; 05-30-2014 at 07:07 AM.

  8. #38
    Senior Member bluEP3_SC's Avatar
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    Stock map sensor isnt going to work above 10psi- not accurately at least. Id upgrade to a 3-4 bar map sensor along with a better IAT sensor relocated to the manifold for when you get the aftercooler- both will provide more precise readings for a stronger tune. I would say 315-320 @ 11psi on a aftercooled jdm k20a is about right.


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  9. #39
    I <3 Purpul Shocker
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    I guess the posts were removed by beppe, but I agree 315-320 @11psi is a good range for an aftercoooled k20a. Assuming on 91/93 pump and not running meth.

    "As I lay rubber down to street, I pray for traction I can keep. But if I spin and begin to slide, please oh please protect my ride."

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  10. #40
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    japshow pics

    Update from japshow didnt run my car as took aircon out and now getting belt slip so gonna put aircon back on as jrsc doesnt get much belt grip as belt route without aircon.. shame really as wanted to better my 12.8 run..

    Still waiting for after cooler & smaller pulley from mercracing.. been 3 months.. come on jose.. lol






    New Radiator..




    Avid engine mount broke

    Last edited by beppe; 07-07-2014 at 10:02 AM.

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