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GTM V7R-820 QuattroValvole Info & Dyno Runs

Discussion in 'V7/V85/V9 Chat & Tech' started by GTM®, Nov 15, 2015.

  1. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

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    First fire of our 820-4V and revised Dyno numbers below.



    ~67 rwhp & 57 lb.ft. torque:

    30BCD749-6B9B-43D5-966B-6F05276172F3.jpeg
     
    Gruzzer and Biffalo like this.
  2. BenRCMC

    BenRCMC Tuned and Synch'ed

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    Ahh Todd, if only I was in the US...
     
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  3. pokeyjoe

    pokeyjoe High Miler

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    So... more HP than a new V9 and definitely better looking.
     
    Poppe, Blair Beavers and GTM® like this.
  4. King of Fleece

    King of Fleece Cruisin' Guzzisti GT Famiglia

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    Nice job and well done all around.
    I'm happy with my GuzziTech re-mapped V 7 and don't lust for more.
    For those who want it it sure looks like the package to get, though. I get "too much is just enough" though!
     
    GTM® likes this.
  5. Trout

    Trout GT Reference

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    Why ain't you on the east coast???

    If I didn't hate flying I'd jet out there for a play day.

    Wife is flying out over xmas to see her people & I'm not going because they all know I don't fly.....now I really can't go..BAH!!
     
  6. Trout

    Trout GT Reference

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    Is that with the stock cam?
     
  7. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

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    It's a quick flight, just red-eye so you can sleep with a sedative. It'll be worth it.
    Yes, stock cam. I left it once I saw the dyno results of @mwrenn's 750-4V. Impressive if you haven't seen it HERE

    Should have mine on the dyno once I sort the fueling next week and get a few miles on it.

    GT-Rx-V7-820-4V.jpg
     
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  8. Trout

    Trout GT Reference

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    Off subject but do you ever sell off any of your rental units? i'd love to have a GuzziTech V7 or Racer that had been tweaked by you.
     
  9. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

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    Yes I sure do, however I usually have a few people in line who ask the same.
     
  10. Thetretelayer

    Thetretelayer Just got it firing!

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    Hi, it's possible to read and see what pieces have been used for this kit and maybe some photos?

    Bigger pistons, OK but which type, made by who? Etc

    4 valves, OK, but dimension, material, producer etc?

    The head has been modified for the 4 valves, OK but still remain a flat heron or has been re-engineered an emispheric head?

    Moreover, in the '80, first the Lario and then the V75 had 4 valves (as you know) with lower displacement of this kit but with higher power, is strange... Isn't it?
    They had problem with valves (too soft) and spring valves (too stiff) but with modern production and materials could be easily resolved.

    Probably this my, could appear a bit critic, but I'm a big fan of Guzzi and I really appreciate every job that will improve the small block.
     
  11. Dan Porges

    Dan Porges Just got it firing!

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    Any thought on the price point for the whole kit? Does it come with everything needed to turn a V7 into a V8-Quatro?
     
  12. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

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    Dan, yes it does. Approximate cost is $3500 outside of labor. Interest has been so minimal that I haven't ordered another run of pistons yet. Contact me direct email; Todd at GuzziTech.com
     
  13. Yodastien

    Yodastien Tuned and Synch'ed

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    I am going to want a kit but it will be down the road I am a rather new rieder
     
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  14. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

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    See mwrenn's post for most of your questions; https://www.guzzitech.com/forums/threads/new-v7-with-4v-heads.14276/

    I can't/won't divulge everything in my kit, but it is turn key outside of labor and some very minor machining work for installation.
     
  15. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

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    Final mods including Kineo wheels, Brembo Race brake upgrade and new Matris F15K fork kit.

    IMG_8782.JPG

     
  16. Yodastien

    Yodastien Tuned and Synch'ed

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    Do you have a final dyno sheet?
     
  17. Trout

    Trout GT Reference

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    Oh! That little beast sounds wonderful.
     
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  18. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

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    Not finished completely yet as I'm sure I can achieve 60 rwhp as it is a zero-mile motor and I have some work left to do on the mapping, but here it is for now... red trace is a stock V7, blue is Mike's 750-4V and the green is my 820-4V. That is a ~65%+ increase in power and ~70% torque over stock.
    New dyno graph added below after we got some miles on it with final tuning.

    V7-V74V-GTV8204V.jpg

    097AAFB7-E173-49A8-AE88-F7805A08EDAD.jpeg


    [​IMG]
     
  19. Trout

    Trout GT Reference

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    Wow! The blue & the green follow almost the exact same pattern but the green shows big improvement.
    This is on the V7R rental bike?
     
  20. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

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    Yes, stock cam, and 749cc vs. 820cc.

    [​IMG]
     
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