is it a step back? i dont think so, lets go N/A

Discussion in 'High Tech for Old Iron' started by Sebambam, Oct 5, 2019.

  1. Sebambam

    Sebambam Well-Known Member

    Hi team
    i have a long and old thread on here that shows the story of my mighty 68 TT build
    and all the work i out into it.

    Well the years go by and priorities change some time and so do mine.

    The whole process of building this car took me on a interesting journey and made me hunting ponies, and it was just necessary to twin turbo my 350.

    Well now October 2019 i decided that the car is not gonna be this kinda car.
    I need a reliable streetcar that i can take to shows and drive.

    So out with the Turbo parts ( max 200 miles on it) and lets get some FI on this 350

    I actually set up my TT build with a FI conversion in mind, by the time i buil the TT the FI systems for boost where questionable or lets say at least not trust worthy enough for me so i went with a carbed Blowthrough setup.
    But the fuel system is proper for a FI conversion.

    Rundown Motor:
    350 + .30 over
    V6 Pistons
    Custom Cam (based N/A)
    fully ported Heads with Valve upgrade
    SP3 single palne intake
    Fuel RobbMC PowerSurge 1000 Fuel cell with boost referenced regulator (runs really good)

    My plans will be simple
    1st back to longtube Headers, Competition 1103 HKR with good Gaskets (remflex)
    then i will finaly get a HOLLEY SNIPER EFI
    and hopefully find the reliable drivability that im looking for lol
    300sbb_overkill likes this.
  2. Mart

    Mart Gold level member

    So you're saying the twin turbos weren't drivable or reliable?
  3. Sebambam

    Sebambam Well-Known Member

    Let's say I dont feel comfortable to drive a 300mi roundtrip.
  4. Julian

    Julian Well-Known Member

    I don't see how.. mild can with a turbo should have no issues
  5. Sebambam

    Sebambam Well-Known Member

    Well everybody has his own opinions.
    For me this setup is good but not what I want at this point!
    Top Performance is not the focus for the buick as of now unless its modern boost but that takes away from its charm.

    I love boosted cars. My daily is a single cab 012' Ram 5.7 procharged.
    My Racecar project us 70 Nova. Alston chassis bigtire LS big single turbo.
    So I know a thing or 2 about boost .
  6. Sebambam

    Sebambam Well-Known Member

    Btw the setup will be for sale soon.
    PM me if you interested
  7. Julian

    Julian Well-Known Member

    I loved the turbo setup.. I loved that I can just drivearound with no boost. Just confused why your experience has been negative.
  8. Sebambam

    Sebambam Well-Known Member

    @Julian Its not negative !
    It's just not what I want for my car
    I want to simplify + add EFI and have it N/A
  9. sean Buick 76

    sean Buick 76 Buick Nut Staff Member

    Being a friend of yours and knowing all the ins and outs of your build I understand your choice to go NA. Nothing wrong with a turbo setup it’s just a ton of HP and TQ to abuse the trans and rear end with. Reliability is not as much of an issue of the turbo system itself it’s more the engine, trans etc. and the ridiculous power applied. Sure everything can be beefed up but if you don’t really need the extra power it just makes the car less reliable. 600+ foot pounds of torque is hard on parts.

    I think it’s smart to go back to NA and enjoy the car as a cruiser! Have fun with it!
    Lucy Fair and Sebambam like this.
  10. sean Buick 76

    sean Buick 76 Buick Nut Staff Member

    That being said it would be interesting to add a 2019 self tuning EFI with your combo and try it out before you go back to NA. Functionally the turbos are amazing. Great low rpm power, no turbo lag, no belt dragging Hp loss, and you get to use a mild cam, low compression, and even with modest head flow they make amazing power. The best part is that the drivability is amazing from my experience. Idle at 18 inches of vacuum, perfect manners, and tons of power when over 1/3 throttle. With street tires, even your big 12” wide ones you would have traction issues at all speeds.
  11. Sebambam

    Sebambam Well-Known Member

    Very well said Sean and that's my whole point . I couldn't have said it better
  12. 300sbb_overkill

    300sbb_overkill WWG1WGA. MAGA

    Can't you just dial the boost down for those long trips?

    The twin turbos sure would draw crowds at shows I would think anyway?

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