2018 GT A10 Upgrade questions

Discussion in 'V8 5.0L Engine / Mods: Bolt-ons, Exhaust, Tuning' started by Mike9865, Sep 28, 2018.

  1. OP
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    Mike9865

    Mike9865 Member

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    You're welcome! Ordered the tune/cai last night. Added the Corsa Cat-Back tonight. Just the headers left, will wait on those until next month.
     
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  2. Jayme

    Jayme DoggystyleRacing®

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    No dealer will install "off road" headers. Huge EPA liability there.....
     
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    Mike9865

    Mike9865 Member

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    Parts received and installed! Working with Lund on the tune, revising the base 93 tune before starting on the E85. The Corsa Sport sounds amazing, I can't recommend it enough! For those on the fence, it is very loud at WOT and quiet when operating at low rpm. Best of both worlds in my opinion.

    Encountered one issue, however, with the JLT intake. My IAT's are waaaaay higher than they used to be with the stock intake when parked or in traffic. I am seeing upwards of 160+ degrees when the ambient temps in Houston are around 95 degrees. Temps drop to within 3 degrees of ambient after cruising at 50+mph for a minute or two.

    Unfortunately in Houston a lot of my time is spent commuting in stop and go traffic. Cylinder head temps were much higher as well due to the increased IAT. What temps CHT temps are dangerous? Think they rose to 230+ at one point yesterday.

    I assume the open box design is allowing engine heat to enter the intake. I used the foam provided by JLT but it doesn't seem to be working. Has anyone else encountered these issues? Did I install something incorrectly? Is there a way to seal the box? Should I switch to the Roush CAI?
     
  4. Noggles

    Noggles Well-Known Member

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    From reading here your temps sound normal for open filter intake setups. Most would say to switch back to the stock intake to keep cooler but others say that idling temps don't really matter as long as they cool off after you start moving again. I am in the stock intake crowd until someone can prove the gains people are talking about can be attributed to an aftermarket CAI of any type.
     
  5. AZ18yote

    AZ18yote Well-Known Member

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    This was one of the primary reasons I had avoided after market CAI and ultimately went with a Steeda closed box design. But from what I have seen those IATs align with what others have experienced.
     
  6. Rjames18

    Rjames18 Well-Known Member

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    If you're on E85 then IAT's aren't going to mean much at all as most tuners have it where it doesn't pull any timing till 150+.
    Temps dont change much for e85
     
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    Mike9865

    Mike9865 Member

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    I have received my E85 and flex tunes. I am down to 12 miles remaining on my current tank of 93. Will it be an issue to go to the e85 tune with about half a gallon of 93 left in the tank?
     
  8. AZ18yote

    AZ18yote Well-Known Member

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    On flex no. On straight e85 youd want almost empty.
     
  9. OP
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    Mike9865

    Mike9865 Member

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    Good to know. I will take the long way to the gas station.
     
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