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Thread: Added Boost - What Fuel Pressure?

  1. #1
    Inactive Member kobe 8's Avatar
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    Will be installing Jim's MVM stepper pulley next week w/ RC310's. What fuel pressure should I be at (idle/static)? See mods in sig.

    Any replies will be appreciated [img]graemlins/thumbs_up.gif[/img]

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    Senior Hostboard Member JRCivic's Avatar
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    Wink

    36 psi static. Your rise rate should be about 3:1.

    <font color="#a62a2a" size="1">[ March 13, 2004 12:29 AM: Message edited by: JRCivic ]</font>

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    Inactive Member kobe 8's Avatar
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    I will drill a 1/32" on the stock fpr to lower the static to ~36psi.

    I know that the JR is a 5:1 rise rate from factory but how do I know what the rise rate for the Cartech 2025 is? How can I adjust the Cartech to get the 3:1 rise rate? I'm confused.

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    Inactive Member cpa's Avatar
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    You should have a fuel pressure gauge and a boost gauge. Measure your max fuel pressure and you max boost. Then compare this to static. Subtract the difference in FP then divide by your max psi. That will tell you what rise you you have. As for adjusting the Cartech, search the forums, it's been covered a million times, or check their website for the instruction manual.

  5. #5
    Inactive Member kobe 8's Avatar
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    Thanks for the clarification on the rise rate calculation. It makes sense now. That was my only question. The Cartech adjustments is simple [img]graemlins/thumbs_up.gif[/img]

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