Davinci Carbs

Discussion in 'Race 400/430/455' started by hugger, Nov 11, 2021.

  1. hugger

    hugger Well-Known Member

    Shout out to thos guy,...he is by far one of the best in regards to customer service,..b4,..during and after,...if you fellas are having performance carb issues,..Dan WILL fix it,...sent him a fresh Pro System paper weight,....bored it out to 1.75 blades,...polished,...built,..tested,..and sent it back with in 1 week,....

    https://davinci-performance-carburetors.business.site/

    That number on the site is his personal cell,....who else does that??
     
    Mike B in SC and BUQUICK like this.
  2. hugger

    hugger Well-Known Member

  3. Bens99gtp

    Bens99gtp Well-Known Member

    Thats great to hear
     
  4. hugger

    hugger Well-Known Member

    The Pro systems wouldn't idle,...run,...or start,...bolted it on once back from Dan,...filled the bowls via the pump,..two full pumps of fuel,...idled clean and consistent within a min,...hot start is flawless,..just turn the key,...part throttle cruise,..perfect,...throtttle response perfectly clean and crisp,.....
     
    Mike B in SC and Max Damage like this.
  5. hugger

    hugger Well-Known Member

    Pulling the converter out now to have it loosened by UCC,..then it's getting new hotshot wheels,....
     
  6. BUQUICK

    BUQUICK I'm your huckleberry.

    Good to hear a positive review. I've got a Dominator that I had converted to E85 years ago but that car will soon have the compression dropped from 13:1 to 10.5:1 so I'm also going back to regular pump gas. I'm trying to decide if I should just start over with a different carb or have someone convert it back to gas.

    So I'm curious, what is this carb bolted to?
     
  7. Todd69GS

    Todd69GS Silver Level contributor

    That's good to hear. Heard a lot of good things about him over the years. Not trying to start anything but what was going on w the Pro Systems carb? Ours was spot on out of the box and usually Patrick has a good rep.
    What car is this going on Ethan?
     
  8. Bens99gtp

    Bens99gtp Well-Known Member

    I had a few issues with my 4150 prosystems carb, but after a few phone calls we got it.

    I have a holley 1050 3 circuit now. It idles great, runs good on the track, but driving around the pits it sounds very slobbery, if I pull the intermediate air bleeds complete it helps. But common since says it can't be run that way.

    What get they get for going through it if you don't mind me asking ethan
     
  9. sean Buick 76

    sean Buick 76 Buick Nut Staff Member

    Nice! Only CSU (Holley blow through boost carbs) gives a cell Number with their carbs. Also great customer service.
     
  10. Todd69GS

    Todd69GS Silver Level contributor

    Yes CSU is very good as well. I sold ours to a buddy when we decided to go efi but they are top of the list for blow through.
     
    Last edited: Nov 11, 2021
  11. hugger

    hugger Well-Known Member

    Ben I'll pm you,...

    I've never had a holley I couldn't figure out ,..ever,..but this thing was fresh never ran,...was DUMPING fuel,..like it didn't have seats,..they looked perfect,...put new ones in anyway,..dropped bowl level,...messed with low speed bleeds,...idle mix would resond one min them not the next,...emailed Patrick and admittedly I was pretty sharp about it,...and he offered to to go back thru it,..but if said it was tested and idled great etc,...so I'm like I'm not shipping this thing back and forth,..so reached out to Dan,....problem solved,...very professional but did tell me how many Pro systems carbs were on his bench at that moment,....
     
  12. hugger

    hugger Well-Known Member

    20211111_135925.jpg 20211111_135955.jpg
    Got lots of little things to do yet ...manual brake swap,..wiring clean up,..GW front suspension ...has full HR rear suspension,..342 gear tho,...but should be around 740hp after the SPX and larger carb bores,..made 698 with a 750HP dyno carb,..but feels like I'm hauling a 16ft dump trailer of gravel haha,...so hopefully Lenny can nail the verter and get it movin
     
  13. Todd69GS

    Todd69GS Silver Level contributor

    That's a low 10 second car if everything goes right and you throw enough gear at it. If it has any fiberglass maybe even tickle 9s.
    I like it!
     
  14. hugger

    hugger Well-Known Member

    It definitely has potential but it's my brother's car,..just a street "550hp" build that got out of hand ha,...so we just gonna leave the gear in it for now,..he actually wants me to do a LSA swap with a 10speed when he graduates,...then I'll be using this one to its potential!!
     
    Max Damage and Todd69GS like this.
  15. BQUICK

    BQUICK Well-Known Member

    Good to see one of my Dom air screens put to good use.....
     
  16. dentboy

    dentboy stacy kelevra

    Lenny's retired. Sold the company to family friend Montgomery. Very nice guy and Lenny trained him
     
  17. hugger

    hugger Well-Known Member

    I wondered about that,...I asked for Lenny and he didn't mention he had retired,..but Montgomery has very good people skills I'll give him that
     
  18. hugger

    hugger Well-Known Member

    Actually gonna be using one of Gary Paines used converters. Looking forward to pushing this thing down the track in May
     
  19. Bens99gtp

    Bens99gtp Well-Known Member

    Gary raves about the guy that does them. I have an ultimate, Lenny has had it back 3 times, it flashes spot on but still feels loose on topend.......I hope to get a data system with drive shaft speed so I can actually figure out too end slip. The way the math works now it comes out like 12%, I would 10 or even 8 would be more acceptable.
     

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