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750cc on 91?

Posted by WalshTSI, Nov 29, 2020

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  1. WalshTSI

    WalshTSI Probationary Member

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    Will I have any idle problems with upgrading to 750cc and a new tune to 91 pump gas? Right now I have 560cc with e40 with a 255 walbro running 26lbs on a 68 HTA turbo.
     

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    1995 Eagle Talon TSi
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  2. delta448

    delta448 DSM Wiseman

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    What are you tuning with?
     

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  3. WalshTSI

    WalshTSI Probationary Member

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    Dsmlink V3
     

    Street Build 60  1

    1995 Eagle Talon TSi
    awd · manual · 2G DSM
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  4. delta448

    delta448 DSM Wiseman

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    Should be no problem at all.
     

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  5. WalshTSI

    WalshTSI Probationary Member

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    Well with that answer I'm assuming no problem with 850 as well. So I wouldn't run out of pump as long as I have a proper tune then? Just want to know if I ever want to go back to e85 or e40 which I have now
     

    Street Build 60  1

    1995 Eagle Talon TSi
    awd · manual · 2G DSM
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  6. delta448

    delta448 DSM Wiseman

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    You might be pushing the limits of the pump on a 255lph at 26psi running e85. Make sure the voltage to the pump is as strong as possible and make sure the fuel supply line is without restriction as much as possible. Otherwise upgrade the pump. When you turn the wick up, watch the AFR under higher boost levels to make sure the fuel keeps up and you don't go lean.
     

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    1998 Eagle Talon TSi AWD
    awd · manual · 2G DSM

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    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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    1990TSIAWDTALON likes this.

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