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VT hot pipes and how they compare

This is a discussion on VT hot pipes and how they compare within the Veloster Performance forums, part of the Veloster Turbo Garage category; Trdtoy do you have available the internal volume of the HF ORHP vs. that of the stock hot piping it replaced? Sent from my Nexus ...

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  1. #21
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    vincejr's Avatar
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    Trdtoy do you have available the internal volume of the HF ORHP vs. that of the stock hot piping it replaced?

    Sent from my Nexus 5 using Tapatalk
    2016 VT Tech Pkg M/T, B&M Short Shifter, Pacific Blue Metallic
    Modified 6EE SRI w/MASSIVE AEM Dry-Flow Filter | Xe HF ORHP | Xe 3TBS |
    6EE Shifter Base & Cable Bushings & Shift Knob | Dual ADD W1 OCC's |
    Thermo-Tec Heat Shield | Synapse R35 BOV | 60mm TB | TB & IM Coolant Bypass |
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    trdtoy's Avatar
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    I do not but I could find out pretty closely the differences.
    '15 Auto VT

    PB's with slips and video:

    60' ET 2.05
    1/8 ET 8.70
    1/8 MPH 85.68 MPH
    1/4 ET 13.421
    1/4 MPH 105.57 MPH

  3. #23
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    Thank you I'd appreciate it

    Sent from my Nexus 5 using Tapatalk
    2016 VT Tech Pkg M/T, B&M Short Shifter, Pacific Blue Metallic
    Modified 6EE SRI w/MASSIVE AEM Dry-Flow Filter | Xe HF ORHP | Xe 3TBS |
    6EE Shifter Base & Cable Bushings & Shift Knob | Dual ADD W1 OCC's |
    Thermo-Tec Heat Shield | Synapse R35 BOV | 60mm TB | TB & IM Coolant Bypass |
    Tippett Rear Reflector Delete | XPEL Ultimate Paint Film |

    Gone:
    2014 VT Ultimate - A/T - Tech Pkg w/ Sunroof - IronMan Silver

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    Has anyone tested the sxth hot pipe?

  6. #25
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    Quote Originally Posted by hardrock2401 View Post
    Has anyone tested the sxth hot pipe?
    Not sure if it will get the same treatment as the others here for directly comparable numbers -- but I'd certainly trust the SXTH version. The design appears sound, with smooth transitions. They mention 2.25" tubing and a 19% flow increase over OEM. That probably puts it in the same ballpark as the V1 ORHP, which is a good thing.
    yammyboy likes this.
    2016 Veloster Rally Edition - Build Thread
    Performance: SXTH Remote Tune, SRI, Shifter Bushings / 60mm TB / Xenon ORHP, ORCP, 3TBS, XPVS / NST Crank & WP pulleys / CNT Catback / Turbosmart Kompact BOV / Tork Boost Solenoid
    Handling: Pierce Rear Torsion Bar / Uniq Rigid Collars / Rev 75A Mount Insert Interior: JCS Pillar Pod / Defi Boost & Volt Gauges
    Exterior: 20% Tint / Hyundai Canada Hood Protector / Molded-in 'Devil' Style Spoiler Misc: Xenon XWEK / Saikou Michi OCC / Cerma Treatments

  7. #26
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    trdtoy's Avatar
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    SXTH pipe will be similar to the HF ORHP except flow will be hindered some at the intercooler inlet due to going from 2.25" to 1.75" whereas the HF ORHP transitions from 2" to 1.75" at the intercooler inlet. They have similar power gains. Just one is larger and heavier.
    '15 Auto VT

    PB's with slips and video:

    60' ET 2.05
    1/8 ET 8.70
    1/8 MPH 85.68 MPH
    1/4 ET 13.421
    1/4 MPH 105.57 MPH

  8. #27
    Clw
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    I just switched from the orhp v1 to the sxth hot pipe. I'm completely blown away by the loss in boost pressure. I was hitting 20-21psi at WOT with the orhp v1. With the sxth hot pipe I am peaking at 17-18psi. The only other changes I've made are replacing the thermostat with the 160* and changing out the coolant to amsoil hd. All done at the same time. You mentioned some disruption of flow because of the larger pipe but it's hard to believe it makes that much of a difference!! I'm seriously considering going back to the ____________________________________________
    2013 VT Manual
    Magnaflow catback exhaust
    Pierce hf catted dp
    6EE SRI
    6EE tune
    6EE Hot pipe
    Tork fuel line upgrade
    Amsoil hd coolant
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    XE 4TBS
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    Performance auto styling vinyl tint rear deflectors and headlights
    Last edited by Clw; 05-30-2018 at 06:05 PM.

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    I'm hitting the same boost pressure with the SXTH pipe as I was before. Usually around 16-17psi, but I did see a 19psi yesterday morning.
    2016 Vitamin C VT w/ MT.

    Mods: Dual OCCs, DIY SRI, disabled upper clutch switch, 60mm TB with 4TBS; Xe ORCP and coolant bypass, SXTH hot pipe, MAP/IAT Sensor Upgrade, MBRP Catback Exhaust

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    Quote Originally Posted by tobs54 View Post
    I'm hitting the same boost pressure with the SXTH pipe as I was before. Usually around 16-17psi, but I did see a 19psi yesterday morning.
    Before meaning with the factory hot pipe?

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    VT hot pipes and how they compare

    Quote Originally Posted by Clw View Post
    I just switched from the orhp v1 to the sxth hot pipe. I'm completely blown away by the loss in boost pressure. I was hitting 20-21psi at WOT with the orhp v1. With the sxth hot pipe I am peaking at 17-18psi. The only other changes I've made are replacing the thermostat with the 160* and changing out the coolant to amsoil hd. All done at the same time. You mentioned some disruption of flow because of the larger pipe but it's hard to believe it makes that much of a difference!! I'm seriously considering going back to the orhp!!
    I tried to give some ideas on IG as to why there is such a large discrepancy...

    Ambient conditions (temperature, humidity) and intake temperatures dictate how much boost the ECM will allow.

    Potential flow disruption from larger pipe transitioning to a much smaller inlet tube.

    Potential pressure drop from larger pipe.

    Not resetting the ECM so it can quickly adapt (50-100 miles is when it does the majority of the adaptation).

    Potential boost leak(s).
    TC4Tay and Clw like this.

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