Some observations fighting IAT's with JLT CAI

Discussion in 'V8 5.0L Engine / Mods: Bolt-ons, Exhaust, Tuning' started by pgonza2723, Jul 12, 2019.

  1. jmeiers

    jmeiers Well-Known Member

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    That is exactly what I am getting next, the Velossa Tech Big Mouth. I already have Cervinis upper/lower grilles so I have plenty of air flow into the inlet. I just need something to stop radiator backwash. Just wish I knew about it before I installed the grilles because I will have to pull the bumper again.
     
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  2. Bluemustang

    Bluemustang Well-Known Member

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    Excellent. Please report your findings. I am doing the Velossa tech as soon as I man up and remove the bumper again lol. It was removed for my APR splitter and one or two of plastic clips broke... So I bought quik latch connectors for when I go to do it - I can line up the bumper gap.
     
  3. bootlegger

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    Let's not get too crazy here. While intakes like the JLT do get hot sitting at idle in summer, there is absolutely no doubt that they flow much better than the stock system.
     
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  4. cib24

    cib24 Well-Known Member

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    Does the stock system really flow all that bad though?
     
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  5. Zinc03svt

    Zinc03svt Well-Known Member

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    I think the advantage is minimal in the warmer months. I ran a JLT cobra jet on my 14. There are ways to improve flow on the stock system. Deleting carbon trap, opening up grill area, and dry flow filter all helped via my logged maf counts. ;).
     
  6. AZ18yote

    AZ18yote Well-Known Member

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    On the 18+ no. Previous years was more of an issue.
     
  7. bootlegger

    bootlegger Enginerd

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    It's not that they flow poorly, just that they could flow better. The cone filter and larger diameter piping/MAF area do make a difference in the right conditions. The only real downside is heat. Personally, I will never likely be a drag racer, so having the fastest launch isn't my goal.
     
  8. cib24

    cib24 Well-Known Member

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    I just think on a N/A car things like intake and even headers aren't really needed given the power you can make from a quality remap and 93 or E85 (if you have it). You have a lot more to gain from modifying the gearing to 4.09s, 4.30s or 4.56s and upgrading the associated suspension and drivetrain for drag race or road course use as you see fit.

    Now, if you are going to add a blower then of course the bolt-on mods make sense so you would certainly want to add an intake, headers, mid pipe, whatever to make the most power. Having said that however, these cars make shit loads of power with just a blower and nothing else anyway so I'm not even sure you need the bolt-ons, as at such a high power level the better driver with 700hp is going to beat the guy with 800hp that can't launch or shift anyway.

    If you care about bragging in the pub about your car's dyno horsepower and theoretical performance which you can't even legally use on the road, then I guess add everything and sleep better at night knowing your car is potentially faster than someone elses. .
     
  9. bootlegger

    bootlegger Enginerd

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    I would never want 4.09s or higher in this car. Traction down low is already limited. Since catless headers are worth 20+whp, I would say they are well worth doing. Intakes are more for engine bay clean-up, better sound, and slight power gain. Blowers are not the best mod for road course work, given the propensity for these cars to overheat.
     
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  10. cib24

    cib24 Well-Known Member

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    Fair enough. In the UK we are stuck with 3.55s and the gears suck as they are too long. Catless headers are illegal in many places, so not interesting to several people around the world and in States that have real emissions laws (I am aware that several US States simply don't care about pollution), and thus the gains provided by header solutions don't make any sense as changing out the stock mid pipe resonator gives you about 10 of that 20 hp anyway without touching the stock catted headers.

    Agree with you on the blower point but others drag race or simply want to be the "cool" guy at the pub that can claim big hp. If you really want big power for those few moments on the street or strip that you can floor it for 5-10 seconds and not get in trouble, then Nitrous is simpler and switchable.
     
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  11. Bluemustang

    Bluemustang Well-Known Member

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    Absolutely. I've proved that to myself over my datalogs. The most I saw with the stock 15 intake was 42 lbs/min, 45 with the JLT intake. After the ported 18 manifold, 49.5.

    I am sure the stock 18 intake flows more because it has a larger diameter than the 15 one does. But let's not kid ourselves - The aftermarket intakes exist to flow more air. And generally speaking more airflow = more fuel = bigger bang, more power (up to a point). According to things I've read - this is usually limited by the volumetric efficiency of the engine.
     
  12. BmacIL

    BmacIL Enginerd

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    Engines are air pumps that happen to burn fuel to do mechanical work. The more air they can pull and push through, the more power they make.
     
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  13. Mikthehun1

    Mikthehun1 Well-Known Member

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    Soooo... strap fans to my grill. Got it. Hold my beer.
     
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  14. BmacIL

    BmacIL Enginerd

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    If those fans can make actual pressure differential ;)
     
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  15. Furious18

    Furious18 Well-Known Member

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    Colder air is more dense obviously, which changes things

     
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  16. Mikthehun1

    Mikthehun1 Well-Known Member

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    I forgot to mention the vacuum cleaner on the exhaust.
     
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  17. Zinc03svt

    Zinc03svt Well-Known Member

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    I went from 47-48 lb per minute on stock box filter to 51.27 maf counts with stock box mods stated above. Data...
     
  18. cib24

    cib24 Well-Known Member

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    That's great that the MAF reads higher but it sounds like a pub brag to your mates. Who really cares about such a small difference on a N/A car? You won't feel 5, 10 or even 15 and arguably 20 hp in a nearly 4,000 lb car.

    Anyway, striving for more efficiency with a better air box is definitely a good idea, but not at the cost the JLT or any other maker wants to charge you. In that case, the stock box is fine and put the $350-500 towards gears for more effective acceleration.
     
  19. bootlegger

    bootlegger Enginerd

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    You definitely feel 20whp. If you buy an intake with a power package sale, it is usually $300 or less. I was already going to clean up the engine bay, this was just a cheap and easy addition to that. If you are paying over $350 for an intake, you are getting hosed. Remember, many of us on here already have 3.73 gears, which is just fine for this car in autoX or road course racing. I understand that intakes aren't for everyone, but they still serve a purpose to others. This thread is focused on fighting the one downfall to changing intakes, which is increased IAT when sitting at idle. There is really no need to lecture about $/hp in here, because most of us already have the intake. And FYI, I don't think I have ever heard someone brag about an intake on a modern mustang at Cars and Coffee.
     
  20. Zrussian13

    Zrussian13 Well-Known Member

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    I got a jlt intake bro! What's up now? :muscle:
     
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