Turbocharged 350 Buick Regal

Discussion in 'V-8 Buick Powered Regals' started by 84regalturbo, Apr 20, 2018.

  1. 84regalturbo

    84regalturbo Member

    Alright guys need some opinions on this setup for the hot side I’ll be running a emusa gt45 turbo not the best pic/ drawing but will something like this for if I add a exhaust pipe to the passenger side manifold forward I want the turbo to sit close like how it sits on the grand national as for the crossover they will be connected to each other only way I’m thinking of running it like this is because of space let me know what you guys think or another way of doing it
     

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    300sbb_overkill likes this.
  2. hugger

    hugger Well-Known Member

    If it were me, I would mount it like the GN as well, but by just piping off the #2 runner like I believe your talking about, you will have some pretty tough reversion to overcome in the crossover as the exhaust is going to be colliding in there. A better solution is a flange from TA and a simple log manifold or tubular header on the pass side then either bring the driver side pipe up over the crossmember and merge it or bring it in the back if the pass manifold that approach will be easiest and will work fine. Place the Gate in the merge and you will be good to go
     
  3. 84regalturbo

    84regalturbo Member

    That was my first method I was thinking but ya is asking about 200 for just flanges and I’ll only need one not the pair I contacted some header flange makers but they said they can’t besides one store but he said I would need to send him a gasket to make it and it’s gonna cost 100 for 1
     
  4. 84regalturbo

    84regalturbo Member

    Can’t remember who’s setup this is on this forum but he did this I was thinking something like this also but my car sits low so it’s a no go
     

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  5. 84regalturbo

    84regalturbo Member

    This is another idea I had this was on my brothers old regal I took a pic of it’s a t3 flange but I’m sure a t4 would work I can put the wastegate on the pipe underneath the flange
     

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  6. hugger

    hugger Well-Known Member

    I have pair of flanges $100 shipped
     
  7. hugger

    hugger Well-Known Member

    A remote mount on3 76mm would hit pretty quick and make enough power to spew parts everywhere.
     
  8. hugger

    hugger Well-Known Member

    Mild steel tubing to cast iron isn't going to last very long in a turbo environment. What about deleting the AC box and leaving the manifolds alone bring driver side over to pass pie cut a stub that turns off the pass manifold into the crossover, 2in off each manifold is plenty the do the the merge to the turbo with 2.25 you may have to take a hot wrench to the pass side frame but I'm willing to bet it can be snaked thru there and then run the hot side pipe above control arm up to the turbo by the pass side head
     
  9. 84regalturbo

    84regalturbo Member

    Won’t have much room to run a 3” exhaust down to the back found this pic on here also and I deleted the ac/heater box
     

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  10. 84regalturbo

    84regalturbo Member

    What you think of this pic cut a section of the manifold and weld some pipe with the flange like that like they do on them ls manifolds
     

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  11. hugger

    hugger Well-Known Member

    You would need to use a thick wall thickness to be able to burn it in good, you can preheat the cast and it will MiG weld pretty good. I've welded several LS manifold flanges on with MIG and to my knowledge they done fine never had them come back
     
  12. 84regalturbo

    84regalturbo Member

    Gonna try it once motor is together if it don’t cone out right I got another spare set of manifolds thanks for all the reply’s hugger
     
  13. 84regalturbo

    84regalturbo Member

    Found this pic of a ls manifold maybe something like this will work better merge the pipe to the stock header collector
     

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  14. 300sbb_overkill

    300sbb_overkill Well-Known Member

    Either make flange adapters to use something like these;

    https://www.ebay.com/itm/Twin-Turbo...ash=item5201cc1dd4:g:c6YAAOSw~vpaFreq&vxp=mtr

    Or cut the flanges off and weld sbb style flanges on.

    If those won't work for you there is a whole lot of different styles of sbc turbo headers;

    https://www.ebay.com/sch/i.html?_odkw=1.500"+oliver+rod+bolts&_sop=15&_osacat=0&_from=R40&_trksid=p2045573.m570.l1311.R3.TR11.TRC1.A0.H0.Xsbc+turbo+.TRS0&_nkw=sbc+turbo+headers&_sacat=0

    The sbb and sbc head exhaust ports are in the same location, the only difference is the shape of the ports and the bolt pattern and the angle of the mounting surface of the ports.

    So if you make or buy sbb flanges, when you cut off the sbc ones you'll need to change the angle for the sbb ones to be welded on.

    Or maybe this kit could be made to work?;

    https://www.ebay.com/itm/High-Perfo...ash=item1edbde14ff:g:IhAAAOSwaadaqSwj&vxp=mtr
     
    84regalturbo likes this.

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