18 Whipple drag radial tire pressure for street pulls?

Discussion in 'Forced Induction - 5.0L V8 Engine' started by Bigswollnasty, May 16, 2019.

  1. Bigswollnasty

    Bigswollnasty Active Member

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    I have a 2018 stage 1 whipple with 305/35/19 NT05R's. What tire pressure are people running for pulls on the street? I only need information pertaining to the street. I have viewed threads about the track already, can't seem to find much for the street. Also looking to hook during rolls, not from a dig.
     
  2. 18 Smoke

    18 Smoke Well-Known Member

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    Mine will hook at 40-45 in 3rd [email protected] psi
    You have to put shifter in sport then paddle to 3rd or it will downshift to 2nd and spin. As soon as you mash it click shifter in drive and let it eat. I have it turned down to 750 whp for the street
     
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    Bigswollnasty

    Bigswollnasty Active Member

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    Ok, cool. This is the type of response I was looking for, and just to clarify by let her eat you mean you mash straight to WOT and don't ease in correct?
     
  4. 18 Smoke

    18 Smoke Well-Known Member

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    Bring it up to 4000 in 3rd and smash it. I’m running MT SS 305/35R19, but your Nittos should hook
     
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  5. Mikeextrafast

    Mikeextrafast Active Member

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    I want to roll about 20 mph in 3rd then hit it but can’t get the trans in 3rd at a low roll ..any tricks
     
  6. 18 Smoke

    18 Smoke Well-Known Member

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    Pull shifter back to sport, paddle up to 3rd and smash it. That’s my trick. Lol
     
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    Bigswollnasty

    Bigswollnasty Active Member

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    I tested this out today, around 45mph in 3rd, car hooked and just went. Car flys and it works like a charm. I only have around 640whp (so less than you)right now and probably a little less than that because it was 85 degrees, sunny and around 50% humidity when I did some test pulls. I only went down to 29psi (after they were heated from driving) on the tires and made sure the car had been driven about 10 or more miles before the pull. I think this should still work after my next mods which should put me closer to 700 wheel. If not I'll drop a few psi. This evening I might even try a 2nd gear roll at a little lower mph.
     
  8. 18 Smoke

    18 Smoke Well-Known Member

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    Hopefully this works or worked for you. The last time I hit it in 2nd on the street, I was at about 20-25mph and it lit the tires and shifted to 3rd still spinning and I nearly put it in the ditch.
     
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    Bigswollnasty

    Bigswollnasty Active Member

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    I never ended up trying any lower, it was plenty fun from 45. Even with suspension mods, you fishtailed?
     
  10. 18 Smoke

    18 Smoke Well-Known Member

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    Yeah man. It spun hard in 2nd, shot straight to 7800, shifted into 3rd and went sideways. I let off and straightened it out, but it was hairy for a second
     
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    Bigswollnasty

    Bigswollnasty Active Member

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    Geez, I thought that when you eliminated the wheel hop, that helps you just spin in a straight line if you do spin. Did you have traction control on?
     
  12. 18 Smoke

    18 Smoke Well-Known Member

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    No. All the way off (Advancetrac). If you leave it on, it will cut power on shifts. Maybe better for the street, but I like it off. Just have to be in [email protected] No issues
     
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    Bigswollnasty

    Bigswollnasty Active Member

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    Yeah, I always turn it off also. Just figured with it off you would be able to ride out the spin better. I always heard leaving it ON can put you in the ditch.
     
  14. 18 Smoke

    18 Smoke Well-Known Member

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    Yeah, I would never leave it on. When it was NA, it was no problem keeping it straight even in 1st & 2nd, but it’s a different animal now and the power/torque hits so fast. Have fun & be safe!
     
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  15. rio16

    rio16 MAD_50HH

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    I have the nt05r but i have a manual car. Warm them up and set it to 20psi. Theyre 315/35/20 tho
     
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    Bigswollnasty

    Bigswollnasty Active Member

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    At what power level do you do this? and what mph and gear are you able to hook from. I saw your mods, I'm sure you have a lot more power than I do , but good to know for the future.
     
  17. Jay-rod427

    Jay-rod427 Well-Known Member

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    20lbs cold in my et street SS's. After BMR goodies it will hook a slow roll in 2nd around 25mph. And just a bit of a long chirp into 3rd. More than a chirp, but less than full on spin.
     
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    Bigswollnasty

    Bigswollnasty Active Member

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    Around what power level do you have? Do you think if you have 3.15's instead of 3.55's you would still chirp?
     
  19. Jay-rod427

    Jay-rod427 Well-Known Member

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    I'd guess around 750-800. I would love to have 3.15's to slow it down a little, but it would still chirp for sure. 4th gear does even with Lund softening the shift timing up big time to buy me some time on halfshafts snapping.
     
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  20. rio16

    rio16 MAD_50HH

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    That was when I was NA. Now the nittos are useless. Lol. The NT05r love to get warmed then theyll hook.
     
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