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VMP Gen 3 Thoughts

Discussion in 'SVT Shelby GT500' started by BlowerMan, Oct 13, 2019.

  1. BlowerMan

    BlowerMan Member Established Member

    Messages:
    103
    Joined:
    Dec 30, 2017
    Location:
    Great lakes
    Just finished my install on my 2008 last night. Couple tips:
    Factory strut brace does not fit, even with JLT spacers
    With 2.6 or 2.7 pulley, stock lower, stock belt fits with stock idlers. Not a K100852 belt like VMP told me. Now I have a $40 wall ornament.
    Use a dremel to clean up coolant tower. NOT a chisel and pliers,
    Blower case squashed the IAT2 connector, have to screw it into the manifold more.
    Blower flange hits the stock harness guard behind manifold, have to move it rearward.
    Get some washers in the kit with all of the bolts. Come on VMP!!!
    EVAP fitting is a hose barb, not a quick connect like the factory, so you have to either cut your factory hose or run a new hose.
    Pulley with kit is extra, not part of the blower price. I thought all blowers came with one pulley for no extra charge.

    BJ is tuning it, stay tuned for dyno results.
     
  2. 1Kona_Venom

    1Kona_Venom Well-Known Member Premium Member Established Member

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    Feb 19, 2010
    Location:
    Savannah-ish, Ga
    I called VMP a few months ago asked about getting a Gen3R for my 5.4......
    The guy said to me, don't waste your money if your gonna be running pump gas. LOL
    was like sure, no problem than.

    That's my thoughts
     
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  3. me32

    me32 BEASTLY SHELBY GT500 TVS Moderator

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    Sep 6, 2005
    Location:
    CA,NorCal
    Sounds like some good feed back. Any pics of the install?
     
  4. doublex

    doublex First Blown 'Stang Established Member

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    458
    Joined:
    May 20, 2005
    Location:
    SE Michigan
    I have a 2008 as well. Does the strut brace not fit because of hitting the blower, the CAI, or something else?

    I would also plan to run pump gas, so is the 3R not the right route?
     
  5. 2011 gtcs

    2011 gtcs GT500 poster Established Member

    Messages:
    6,745
    Joined:
    Mar 7, 2011
    Location:
    Arizona
    My Gen3 TVS was a pain in the ass to install, mostly because of the EGR tube, I had to get a pipe bender to make it fit correctly. And you're great hands with BJ tuning your car. He tuned my GT500 and it runs like a monster
    Are you serious? What jackass would have said that, worst case you can run 91 with boostane and run a 2.5 upper.
    Depending on your boost level, I would just run a 32oz can of boostane. That should take care of knock issues.
     
  6. VMP Performance

    VMP Performance Member Established Member

    Messages:
    44
    Joined:
    Apr 25, 2019
    Location:
    New Smyrna Beach, FL

    Oh geez. Hate to hear that was your experience...

    I'm Chuck the director of sales at VMP, feel free to reach out to me on my personal cell to chat about your build
    832-694-9424
     
  7. Justin@VMP

    [email protected] Authorized Vendor Authorized Vendor

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    Jun 16, 2004
    Location:
    Orlando, FL
    For everyone that is asking questions, here are our installation videos:



     
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  8. Justin@VMP

    [email protected] Authorized Vendor Authorized Vendor

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    Location:
    Orlando, FL
    I will also speak to a couple of the installation and tuning comments...

    The 2650 rotors housed within the VMP Gen3 and Gen3R are around 5mm larger in diameter and 5mm longer in length. Whereas the STB was very close with a 2300, its a no-go with a 2650. Not too big of a deal since the GT500 has not had one since 2010. Overall, the rotors are short and fat compared to other blower upgrades, it's tight in a few places, but its well worth it for the efficiency that the 2650 brings.

    The boostcurve of the 2650 is a little different than the 2300. We're pulleying them up 3-4 sizes to see the same PEAK boost, but we don't have some of the negatives of the 2300, so we're really only going up 2-3 sizes. The 2300 hits really really hard, and then it falls on its face. It's hard to understand this UNTIL you have a 2650. The 2650 comes on hard around 4k and never stops pulling. Whereas the 2300 boost curve was very flat, the 2650 will make 1-2psi more up top. This is not a bad thing, the engine can tolerate more boost at higher RPM when the piston speed is up. Since you are continuing to accelerate faster and faster they still love timing.

    Other notes about the Gen3R vs Gen3...when you get into small uppper and overdrive lower pulley combos the R will make 1-2psi more than regular 3 due to how much better the inlet is. On a stock motor GT500 with a 2.4 upper only combo the R makes around 30rwhp more than the old Gen3. I can tell you from installing and dynoing a ton of these at VMP, the R consistently makes more power on average than the regular 3 given the same combo on a stock motor. Built motor combos will see 100rwhp over the 3 with our best R model, competing with blowers over a liter larger in size. All while still fitting under the stock hood, and weighing only 45lbs vs some of the big liter blowers which weigh in at 70lbs.

    When we install these, we don't use washers. For some novice's at home, I can easily see them falling into injector holes and taking out a motor. We are making some changes to the EVAP arrangement on the back for 07-10 cars that still use a line, unlike 11-14 which have a valve bolted directly to the elbow.
     
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  9. RedVenom48

    RedVenom48 Ghost Editor-In-Chief Premium Member Established Member

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    Location:
    Arizona
    Id like to think people that run pump on a blown car like a GT500 know to use it for cruising. I should hope that Im not told that shit when Im planning to spend my cash. Also, not everyone has access to quality E85 like FL and the east coast does. If it were like that here in AZ, my car would have been converted when I moved into the state. Would I love to have cheap fuel with race gas performance? Of course, as do most guys that dont have E85 near them. Dont mock, provide solutions to issues.

    That said, Im glad to see VMP here to discuss their product.
     
    Last edited: Oct 19, 2019
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  10. Justin@VMP

    [email protected] Authorized Vendor Authorized Vendor

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    FWIW we recommend a 2.6 or 2.7 upper MAX for pump gas on the 5.4l, and a 2.5 or 2.6 upper for the 5.8l with pump gas. Those are the smallest recommended pulley combos, if you are on 91, err to the larger size (2.7 for 5.4l and 2.6 for 5.8L). If you want to be conservative, go up to a 2.7 or 2.8.
     
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