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  1. #26
    Join Date
    May 2002
    Location
    Linden, MI
    Posts
    4,671

    Default Re: Boosted Buicks Here!

    Steve, do you have a boost guage? My D-1 only does 5psi with a 4 inch pulley.
    Doug Gorton
    Gravity, it's only a theory.
    Trying is the first step towards failure
    -Homer Simpson
    GSX clone- May 2002
    Supercharged 462-April 2010
    1973 Ski Nautique 351w
    87 GN- August 2005

  2. #27
    Join Date
    Sep 2003
    Location
    Illinois
    Posts
    296

    Default Re: Boosted Buicks Here!

    Yeah, I got a gauge. Like I said, I really have not pushed it too much. I have only stepped on it hard one time. When I got it, it had way too much timing and an aggressive curve at that. I have since redone all that. I just had a rocker shaft break and lost oil pressure. I shut it off before any damage occurred .

    I really have no idea where the boost peaks. I only guessed at the 10 psi by
    reading posts from the guy who built it. I am trying to take baby steps since I don't know for sure what is in this thing. I have done a lot of work to it so far, but have a long way to go.
    I will be staying at the University plaza(Holiday inn) in Bowling Green if anyone wants to stop by. Here are a couple pics of the car as it sits now
    Attached Images Attached Images
    Steve
    Professional Buick hoarder

    Current Buicks:
    '70 GS restoration in progress.
    '70 GS 464 /2004r
    '70 GS clone Procharged 464/2004r
    '87 GN

  3. #28
    Join Date
    May 2002
    Location
    Linden, MI
    Posts
    4,671

    Default Re: Boosted Buicks Here!

    Nice clean setup. I think I may be the only one using a Procharger and has power steering. Sorry I am not going to be at bowling Green. Car looks really nice.
    Doug Gorton
    Gravity, it's only a theory.
    Trying is the first step towards failure
    -Homer Simpson
    GSX clone- May 2002
    Supercharged 462-April 2010
    1973 Ski Nautique 351w
    87 GN- August 2005

  4. #29
    Join Date
    Apr 2002
    Location
    Arlington, Texas
    Posts
    674

    Default Re: Boosted Buicks Here!

    Guys,

    Here are the spec's of my YSi blow 466. At 16.8 psi we made 1017 at 6300RPM. Looking to change blower pulley to bring boost down to 10 to 12 psi for the street and to help w/ the learning curve.

    76 455 Block- Cryo tempered, girdled, tall filled water jackets- 4.360 bore
    Crank- 76 455 Stocker, .020/.020
    Pistons- TSP/Diamond custom blower piston
    Rods- TA Sportsman Forged
    Compression Ratio- 8.0-1
    Cubic inch- 466
    Heads- Early TA STG 2 SE, 320/250 cfm at .500
    Oiling- all block mods, TA timing cover w/ HV pump, bypass line, SRE oil pan- 100+ psi oil pressure at rpm
    Cam- Custom TSP/TA solid blower grind- Idles @ 800 rpm with 12" Vacuum
    Valvetrain TA 1.65 Rollers- TA solid lifters, TA hardened pushrods
    Intake- TA SP-1 intake- ported
    Billet Timing chain
    SFI Romac balancer
    SFI JW flexplate
    Carb- CSU 850 cfm blow thru double pumper Holley
    Supercharger- Vortec V7 YSI blower, cog belt drive- putting out 16.8 psi boost at 6300 rpm
    Meth Injection- AIS injection system- dual nozzel, injecting before and after Supercharger
    Jim Byers
    65 Skylark

  5. #30
    Join Date
    Feb 2002
    Location
    Louisville,Kentucky 40229
    Posts
    4,296

    Default Re: Boosted Buicks Here!

    Am I the only one that went to a manual valve body automatic?
    Michael Evans

    "Universal means the part universally does not fit anything until you make it"


    Next Buick project...........1987 T-Type

  6. #31
    Join Date
    May 2002
    Location
    Linden, MI
    Posts
    4,671

    Default Re: Boosted Buicks Here!

    Quote Originally Posted by jay3000 View Post

    With the exception of the tires, there are no outward signs that this car is
    able to get out of it's own way.
    Only a fool would ignore those tires. Of course its easy to find fools!
    Doug Gorton
    Gravity, it's only a theory.
    Trying is the first step towards failure
    -Homer Simpson
    GSX clone- May 2002
    Supercharged 462-April 2010
    1973 Ski Nautique 351w
    87 GN- August 2005

  7. #32
    Join Date
    May 2002
    Location
    Linden, MI
    Posts
    4,671

    Default Re: Boosted Buicks Here!

    Quote Originally Posted by Michael Evans View Post
    Am I the only one that went to a manual valve body automatic?
    Not here. I have a 200-4r. Will be rebuilding and changing converter next spring.
    Doug Gorton
    Gravity, it's only a theory.
    Trying is the first step towards failure
    -Homer Simpson
    GSX clone- May 2002
    Supercharged 462-April 2010
    1973 Ski Nautique 351w
    87 GN- August 2005

  8. #33
    Join Date
    Feb 2002
    Location
    Louisville,Kentucky 40229
    Posts
    4,296

    Default Re: Boosted Buicks Here!

    let me ask this then.

    What has everyone else done for the shifting of the transmission?
    Michael Evans

    "Universal means the part universally does not fit anything until you make it"


    Next Buick project...........1987 T-Type

  9. #34
    Join Date
    Sep 2003
    Location
    Illinois
    Posts
    296

    Default Re: Boosted Buicks Here!

    I am running a turbo 350. Will be installing a 2004R soon
    Steve
    Professional Buick hoarder

    Current Buicks:
    '70 GS restoration in progress.
    '70 GS 464 /2004r
    '70 GS clone Procharged 464/2004r
    '87 GN

  10. #35
    Join Date
    Jul 2007
    Location
    Greensboro, nc
    Posts
    4,343

    Default Re: Boosted Buicks Here!

    Quote Originally Posted by Michael Evans View Post
    let me ask this then.

    What has everyone else done for the shifting of the transmission?
    I just put my hardened up T-350 in D.
    Jay Davenport
    70 Skylark 455... Needs paint and interior
    72 GS 355.. Sold
    71 Skylark 355 Mark Burton Twin Turbo 7.67@ 92.1 W/2.01 60ft Ecoboosted SOLD

  11. #36
    Join Date
    Feb 2002
    Location
    North care-o-line-ya
    Posts
    2,682

    Default Re: Boosted Buicks Here!

    Quote Originally Posted by Michael Evans View Post
    let me ask this then.

    What has everyone else done for the shifting of the transmission?


    I was shifting manually when the switch-pitch trans was installed. I may leave this one in Drive to see how it does.
    alan

    It isn't what happens to you that matters most, but rather what you choose to do about it.

    '73 Estate wagon - Best ET 11.74, best MPH 117.13

  12. #37
    Join Date
    Feb 2002
    Location
    North care-o-line-ya
    Posts
    2,682

    Default Re: Boosted Buicks Here!

    Here is a link to the "Power adder V8 cars at the Nats" thread from April;

    http://www.v8buick.com/showthread.php?p=1721790


    Also, this thread is now a Sticky.
    alan

    It isn't what happens to you that matters most, but rather what you choose to do about it.

    '73 Estate wagon - Best ET 11.74, best MPH 117.13

  13. #38
    Join Date
    May 2002
    Location
    Linden, MI
    Posts
    4,671

    Default Re: Boosted Buicks Here!

    Quote Originally Posted by alan View Post

    Also, this thread is now a Sticky.
    Doug Gorton
    Gravity, it's only a theory.
    Trying is the first step towards failure
    -Homer Simpson
    GSX clone- May 2002
    Supercharged 462-April 2010
    1973 Ski Nautique 351w
    87 GN- August 2005

  14. #39
    Join Date
    May 2002
    Location
    Linden, MI
    Posts
    4,671

    Default Re: Boosted Buicks Here!

    Quote Originally Posted by Michael Evans View Post
    let me ask this then.

    What has everyone else done for the shifting of the transmission?
    Shift light on the tach and push the lever when it goes on

    I shift manually when racing the car. Even though it is a CZ code 200-4r it still only shifts at 5200 and not real consistant. Eventually will be back to 6000 rpm shifts. Will still have a drive mode in it when we rebuild. Thinking about an Extreme Automatics valve body with the rebuild to fix the downshift problems with the tranny (stock will shift down too far for big block car.)
    Doug Gorton
    Gravity, it's only a theory.
    Trying is the first step towards failure
    -Homer Simpson
    GSX clone- May 2002
    Supercharged 462-April 2010
    1973 Ski Nautique 351w
    87 GN- August 2005

  15. #40
    Join Date
    Oct 2007
    Location
    Bend OR
    Posts
    1,355

    Default Re: Boosted Buicks Here!

    Quote Originally Posted by Michael Evans View Post
    let me ask this then.

    What has everyone else done for the shifting of the transmission?
    I am running a Th400 3000 stall switch pitch. I have a timer that is set at 1.8 seconds. This switches from high stall(3000) to low(600) stall at 1.8 sec after I release the foot brake. I have set my governor up to shift at 5000 rpm. With the big slicks it shifts at a bout 4900. Setting up the governor is easy to do and makes the transmission do what it is supposed to do. pull the four bolts on the passenger side of the trans and then slide out the governor then replace two springs then go test and repeat until you find the combo that gets the shift points you want. If you end up with a different shift point on the 1-2 and the 2-3 then change out the the two weights. Don't program governor unless you are sure the kickdown is activated or you will get inconsistent shift points. On the th350 it is the cable that is connected to the carb. On the th400 it is activated with a 12 volt wire on the driver side of the trans. On my bracket cars I use a toggle to lock the kickdown on. In the Skymaro I have a full throttle switch on the gas peddle. The function of the kickdown is to ignore engine vacuum and only look at rpm's.
    James Love

    How do you make a Camaro cool? By putting a Buick engine in it.

    The only thing better than a Buick powered chevy is a Buick powered Buick!

    More Pixs of my cars



    1973 ZSX Skymaro(Z28 Camaro) twin turbo 455 9psi 11.64 @ 120 high 10's on 12psi
    1971 Nova 455 has not seen track yet
    1972 Opel 4 cyl hope to goto turbo v6 fun
    1972 Skylark GS 455 12.80 @ 106
    1967 Skylark 455 has not seen track yet
    1971 Chevelle 307 17.79 @ 75 wife's car
    1969 Skylark 3504brl no track time yet

  16. #41
    Join Date
    Jul 2007
    Location
    Greensboro, nc
    Posts
    4,343

    Default Re: Boosted Buicks Here!

    The kickdown cable on a 71 and 72 turbo 350 Skylark is actually connected the the accellerator pedal. The shift points on the tranny can also be raised bt grinding away the weights on the governor a little at a time to get the desired shift points.
    Jay Davenport
    70 Skylark 455... Needs paint and interior
    72 GS 355.. Sold
    71 Skylark 355 Mark Burton Twin Turbo 7.67@ 92.1 W/2.01 60ft Ecoboosted SOLD

  17. #42
    Join Date
    Oct 2007
    Location
    Bend OR
    Posts
    1,355

    Default Re: Boosted Buicks Here!

    Quote Originally Posted by GranSportSedan View Post
    James
    how on earth did you get a 600 rpm low stall on a switch pitch. thats pretty damn tight. Bob
    Yeah tell me about it in low stall it pulls my 800 rpm idle down to 500. That is the way it came from Jim B.
    James Love

    How do you make a Camaro cool? By putting a Buick engine in it.

    The only thing better than a Buick powered chevy is a Buick powered Buick!

    More Pixs of my cars



    1973 ZSX Skymaro(Z28 Camaro) twin turbo 455 9psi 11.64 @ 120 high 10's on 12psi
    1971 Nova 455 has not seen track yet
    1972 Opel 4 cyl hope to goto turbo v6 fun
    1972 Skylark GS 455 12.80 @ 106
    1967 Skylark 455 has not seen track yet
    1971 Chevelle 307 17.79 @ 75 wife's car
    1969 Skylark 3504brl no track time yet

  18. #43
    Join Date
    Feb 2002
    Location
    Louisville,Kentucky 40229
    Posts
    4,296

    Default Re: Boosted Buicks Here!

    Doug,

    Made some changes to my "list" so you can update the word document.

    Your PM box is full.
    Michael Evans

    "Universal means the part universally does not fit anything until you make it"


    Next Buick project...........1987 T-Type

  19. #44
    Join Date
    May 2002
    Location
    Linden, MI
    Posts
    4,671

    Default Re: Boosted Buicks Here!

    Quote Originally Posted by Michael Evans View Post
    Doug,

    Made some changes to my "list" so you can update the word document.

    Your PM box is full.
    duh Thanks
    Doug Gorton
    Gravity, it's only a theory.
    Trying is the first step towards failure
    -Homer Simpson
    GSX clone- May 2002
    Supercharged 462-April 2010
    1973 Ski Nautique 351w
    87 GN- August 2005

  20. #45
    Join Date
    Feb 2002
    Location
    Louisville,Kentucky 40229
    Posts
    4,296

    Default Re: Boosted Buicks Here!

    After rereading all the posts nobody has said anything about check valves on either the power brakes or the transmission.

    I for one do not have either just wondering if most everyone does not build any boost until high gear?

    High gear is the only time it does not break the tires loose for me .

    Most of the time it is
    Michael Evans

    "Universal means the part universally does not fit anything until you make it"


    Next Buick project...........1987 T-Type

  21. #46
    Join Date
    Feb 2002
    Location
    North care-o-line-ya
    Posts
    2,682

    Default Re: Boosted Buicks Here!

    Quote Originally Posted by Michael Evans View Post
    After rereading all the posts nobody has said anything about check valves on either the power brakes or the transmission.

    I for one do not have either just wondering if most everyone does not build any boost until high gear?

    High gear is the only time it does not break the tires loose for me .

    Most of the time it is

    The brake booster has a valve on it from the factory. I remember bench testing it to see how much pressure it would take, but I don't remember what pressure I checked it at!

    (Looking at the thread linked below, I'd guess 15psi)


    I'm using a pressure regulator between the engine and the vacuum modulator. Here's a link to the thread;

    http://www.v8buick.com/showthread.php?t=167733
    alan

    It isn't what happens to you that matters most, but rather what you choose to do about it.

    '73 Estate wagon - Best ET 11.74, best MPH 117.13

  22. #47
    Join Date
    Jul 2007
    Location
    Greensboro, nc
    Posts
    4,343

    Default Re: Boosted Buicks Here!

    I have a check valve on the PCV that I snagged off of a little import in the boneyard. It was inline to the brake booster and worked perfectly. THe PCV valve will allow boost to blow by it. I bought a little inline check valve at NAPA that I use for the tranny and the vacuum canister. Works perfectly. Tranny shifts great at light pedal. The factory brake booster valve is still in place and works perfectly as is...
    Jay Davenport
    70 Skylark 455... Needs paint and interior
    72 GS 355.. Sold
    71 Skylark 355 Mark Burton Twin Turbo 7.67@ 92.1 W/2.01 60ft Ecoboosted SOLD

  23. #48
    Join Date
    Oct 2003
    Location
    near Waco Texas
    Posts
    475

    Default Re: Boosted Buicks Here!

    I'm getting ready to join the boosted club. I'm wondering what you guys think about compression ratios. I've always thought that 8:1 ( static) is a better choice than like say 9:1 or higher. I understand that you can usually run more boost with a lower compression. Also, should you shoot for a low dynamic compression number too? My thoughts are that with the lower ratio, you can get more air and fuel into the chamber, thus resulting in a bigger bang, so to speak. With that said, are there any quench or squish concerns I should be worried about with boost? I'll be racing only with the motor, so partial throttle and street manners are out the window on this one.

    What are your thoughts, guys?
    David Baker



    1970 GS Stage1 4-speed
    One of only 664

  24. #49
    Join Date
    Feb 2002
    Location
    Louisville,Kentucky 40229
    Posts
    4,296

    Default Re: Boosted Buicks Here!

    The amount of input is determined by your build (and your will). This build I have so far has seen 10 PSI with the better than "stock" set up.

    as soon as I get the new short block built, it will be time to turn it up.
    Michael Evans

    "Universal means the part universally does not fit anything until you make it"


    Next Buick project...........1987 T-Type

  25. #50
    Join Date
    May 2006
    Location
    Florida
    Posts
    1,182

    Default Re: Boosted Buicks Here!

    W o W

    Quote Originally Posted by offbrand Racing View Post
    Guys,

    Here are the spec's of my YSi blow 466. At 16.8 psi we made 1017 at 6300RPM. Looking to change blower pulley to bring boost down to 10 to 12 psi for the street and to help w/ the learning curve.

    76 455 Block- Cryo tempered, girdled, tall filled water jackets- 4.360 bore
    Crank- 76 455 Stocker, .020/.020
    Pistons- TSP/Diamond custom blower piston
    Rods- TA Sportsman Forged
    Compression Ratio- 8.0-1
    Cubic inch- 466
    Heads- Early TA STG 2 SE, 320/250 cfm at .500
    Oiling- all block mods, TA timing cover w/ HV pump, bypass line, SRE oil pan- 100+ psi oil pressure at rpm
    Cam- Custom TSP/TA solid blower grind- Idles @ 800 rpm with 12" Vacuum
    Valvetrain TA 1.65 Rollers- TA solid lifters, TA hardened pushrods
    Intake- TA SP-1 intake- ported
    Billet Timing chain
    SFI Romac balancer
    SFI JW flexplate
    Carb- CSU 850 cfm blow thru double pumper Holley
    Supercharger- Vortec V7 YSI blower, cog belt drive- putting out 16.8 psi boost at 6300 rpm
    Meth Injection- AIS injection system- dual nozzel, injecting before and after Supercharger
    13.15 @107 65 Skylark Coupe, Burgundy Mist,black buckets,462,75 "AF" block, 10:1 TA 288-94h +4,Gessler TA SE Heads 59cc 300 206@.500,TA SP1,750 Speed Demon ,TA 500 fuel pump,Frnt cvr oil mods,Msd dist,Turbo 350, Coan Max perf. 2100 stall,2:56 Powertrax no slip:(TA shorty headers
    72 Skylark custom gs clone/modified 350
    72 Skylark 350
    72 REAL GS 350 -455 convertible 13.67 @ 97 mph
    32 FORD ROADSTER 350/T350-361hp
    90 Corvette Convertible
    84 MONTE CARLO SS
    06 TOYOTA TUNDRA DOUBLE CAB V8

 

 
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