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  1. #51
    Join Date
    Feb 2008
    Location
    Texas
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    220

    Default Re: 69' Banshee Build

    It's alive!! All of the hours and busted knuckles have been worth it. It is still a few weeks away from being on the road though. Ill get it out in the sun this weeknd to take some decent pics. The turbos do make it noticably quiter, but it still sounds good off of the 3" dumps. Thanks to everyone for all the help to get it to this point.
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  2. #52
    Join Date
    Apr 2006
    Posts
    1,369

    Default Re: 69' Banshee Build

    Great news! Now all the little stuff you were telling me about right? I wish I could come over and help git-r-done!

  3. #53
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,234

    Default Re: 69' Banshee Build

    Horray!
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  4. #54
    Join Date
    Feb 2002
    Location
    NY
    Posts
    14,419

    Default Re: 69' Banshee Build

    The world is a better place with the re-birth of another '69 Buick.

    Alan W

    BPG # 1048 - Charter Member
    NE GS/GN Club - 17 Year Member
    68/69 Buick StepChild Nation - 29 Year Member

    What is a Buick StepChild ?
    Quote Originally Posted by 442w30 View Post
    ... They have awkward proportions from certain angles, and they look dumpy compared to their GM brethren
    ....'68 SportWagon400 "Sportn'Wood"..............'69 GS400 Convert "BigRed"..........

  5. #55
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Wink Re: 69' Banshee Build

    Rare twin turbo and AC option straight from the factory.......

    Got it on the road for the first time today. A bunch of issues came up. The biggest one was it started overheating. The temp kept creeping up to 230 at idle. I don't feel a lot of air being drawn from the front of the radiator. I do have a shroud around the radiator and a flex fan. It has a new 180 thermostat in it. The fan is sitting about an inch away form the opening. I am assuming I need a larger spacer to get it just inside of the shroud. I have also thought about getting some form of an electric fan for it.

    The car has never had overheating issues, but I have never driven it in the 100 degree plus texas heat.

    I am also running really rich because I haven't tuned it yet. I have to go through the tuning thread and work on that this weekend.
    Attached Images Attached Images
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  6. #56
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,234

    Default Re: 69' Banshee Build

    As far as I know you want to have the fan shroud covering half of the blade of the fan in depth. So I would get that fan move into the shroud.

    You will want to keep a close eye on the 02 sensor and get that air fuel in the ballpark for sure.. Too rich can contaminate the oil and other issues.

    What is you timing curve? Too little timing at low RPM can cause overheating.
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  7. #57
    Join Date
    Apr 2006
    Posts
    1,369

    Default Re: 69' Banshee Build

    Sweet. Glad to see it come together.

  8. #58
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    Realized I had a big block shroud on the car instead of a 350 one. Found a good deal on one on ebay and the car runs 50* cooler. Pretty amazing what a shroud can do. I also locked out the mechanical advance on the distributer and set it at 20* initial with about 8* degrees of vacuum advance. Bought a MSD BTM 6462 that has an adjustable timing retard for boost. Currently set at -1* per +1lb of boost. Going through the tuning thread to get everything else dialed in.
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  9. #59
    Join Date
    Jul 2007
    Location
    Greensboro, nc
    Posts
    4,322

    Default Re: 69' Banshee Build

    So you only have 20* total at WOT??? You're goona want more that that..

    I'm running 20 initial with 12 mechanical for a total of 32 * and only pulling out .5 * per Lb.. So that gives me about 30* under full boost..
    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

  10. #60
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    Quote Originally Posted by jay3000 View Post
    So you only have 20* total at WOT??? You're goona want more that that..

    I'm running 20 initial with 12 mechanical for a total of 32 * and only pulling out .5 * per Lb.. So that gives me about 30* under full boost..

    Thanks for the info. I must've misinterpreted something along the way. Do you run any vacuum advance? I am assuming the 20* initial is without any added mechanical or vacuum advance. When is your mechanical advance all in? With the MSD box, I have a knob int he car that controls the retard per pound boost. I will start out with .5* per lb and see how it goes.
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  11. #61
    Join Date
    Jul 2007
    Location
    Greensboro, nc
    Posts
    4,322

    Default Re: 69' Banshee Build

    Quote Originally Posted by tinker14bs View Post
    I am assuming the 20* initial is without any added mechanical or vacuum advance. When is your mechanical advance all in?
    Good talking to you..
    Yes 20 initial plus 12 mechanical.. It's all in at about 2200 or so. Long before the convertor stalls.. I'm running 8lbs of boost so I'm pulling 4*.. I might try it without pulling any timing next time at at the strip.. I'm spraying a good gulp of methanol too. Comes on at 4lbs..
    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

  12. #62
    Join Date
    May 2003
    Location
    Columbus, Georgia
    Posts
    90

    Default Re: 69' Banshee Build

    Dear Brennan,

    CONGRATULATIONS to you on building an excellent GS my friend, amazing.

    Tell us how you learned to do body and paint work so well -- many folks out here find it very challenging to even think about removing an emblem, a fender, or a door -- let alone taking all of the body panels off, welding shut the holes, and of course applying a professional paint job. Outstanding!

    How is the car running now, I hope that all is well.
    Thank you for blessing us with the story of your build.
    1969buickGS

  13. #63
    Join Date
    Dec 2006
    Location
    British Columbia, Canada
    Posts
    642

    Default Re: 69' Banshee Build

    Bringing this thread back from the dead.... Update?
    Buick #455

  14. #64
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    I have been meaning to put up some updates, so now is as good as time as ever. Car has been running well since I put in the new cam. Tuning has been a bit slow with a large learning curve. I have never tuned a carb before so I was a bit slow learning. I have been following the tuning thread and have it pretty close. Part throttle punch and power valve adjustments are still a bit off. The car also had an overheating issue so I put in a new radiator and electric fans. After the electric fans went in, I had an issue with charging. Took me a bit to realize what was going on. I would tune the car at night and the part throttle stabs would stall the car and then not enough juice to re-start the car. It got a little old having to walk home to grab another car to jump it. I finally realized it was an alternator issue and put in an internally regulated 140 amp alternator and it took care of the charging issues.

    Pic of engine with new radiator.
    DSC_0796.jpg

    Tuning at night made me realize the headlights are horrible. I also got around to fitting in the new BMW 5 series headlights I had bought for the car. I can actually see the road now. I have been debating on getting rid of the high beams and using the opening for air inlet for the turbos. I do have matching high beam housings from the BMW that I could also put in to match the low beams.
    DSC_0797.jpgDSC00452.jpg

    The car started leaving tranny puddles where ever it went so I decided to pul the tranny last week and am replacing all the external seals on it. So currently the tranny is sitting next to the driver rear tire. My daily driver has some bad bushings in the lower control arms that will put it out of commission for a little bit while I wait on replacements. I'll have to get the tranny back int he car this weekend to make it the DD for awhile. Might be a good time to get a vid of running up here.
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  15. #65
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    Missed this post. Thanks for the compliments. The body work and paint came from trial and error. This was my first car when I turned 16 and I wanted to do all the work on it myself. It is not perfect, but it was a good accomplishment for me.

    Filling the trim holes with the welder was not too bad, but trying to weld the larger holes shut and patch panels with tough. I knew almsot nothing about welding when I started, but a lot of youtube videos and burning through the sheet metal teaches you a lot. Here is a pic of the drier side handles which was the first welding I did...pretty ugly...
    DSC_0424welding.jpg

    By the end of the work I was good enough at welding to weld up the down pipes with no leaks and nice welds....
    DSC00117DP.jpg

    The body work was a lot of sanding and filler, blocking and guide coat. By far the worst part of the whole job, that I it was July/August in Texas in my garage. Hot and nasty work.

    As far as the painting went..... I put down four layers of primer which was what I was using to teach myself how to paint the car. The primer went down easy. It actually took me about 9-10 attempts before I got the paint how I wanted. Between each paint attempt was about 30 hours of sanding. It took me about 5 months to get the paint down because of this. I came real close to throwing in the towel. Once again a lot of youtube videos and multiple attempts that turned into practice. Sometimes I would spray the hood and resand to practice. Cost an extra $800 in paint for the issues, but I chalked it up to a learning experience. The first 4 attempts were in Flat Black. The first coat I touched the side of the car with the paint hose. Second attampt I decided the flat black I got was too glossy and went with a different paint for 3rd and 4th attempts. Gun was spurting during attemps and left very uneven finish. Looks a lot better in the pic then it was in person....


    DSC_0577 FB.jpg

    Decided that flat black was not for me and went with the Tunnel Ram Gray from Eastwood. Attempts 5-6 using the new coating kept coming up extremely textured like it was under coating....
    DSC_0585 texture.jpg

    I bought a new $30 paint gun from Harbor Frieght that fixed the texture issue. I later found out it was a bad o-ring on the needle of the orginal gun, but the cheap $30 gun sprayed so nice, I continued to use it. Attempts 7-9 kept coming out tiger stripped. The base coat would look fine, but then after about 30 minutes of the clear coat, it would tiger stripe. I later found out it was from applying the clear coat to soon after the metallic base coat and the solvent in the clear coat was reflowing the base coat to tiger stripe it. I was waiting an hour between coats and it was not enough. This was in Jan-Feb so temps were in upper 50s to low 60s when spraying.
    DSC_0612 TS.jpg

    The 10th attempt was finally the charm. I waited 18 hours between basecoat and clear coat that finally gave me this finish.....
    Buick.jpg

    I still have yet to reinstall the window trim because I am not sure how I want it. I think I am going to paint it matte black. It looks better than the chrome. Eventually I would like to do a brake upgrade to it which will require a larger rim, but that is the future like to have list.

    Quote Originally Posted by 1969buickGS View Post
    Dear Brennan,

    CONGRATULATIONS to you on building an excellent GS my friend, amazing.

    Tell us how you learned to do body and paint work so well -- many folks out here find it very challenging to even think about removing an emblem, a fender, or a door -- let alone taking all of the body panels off, welding shut the holes, and of course applying a professional paint job. Outstanding!

    How is the car running now, I hope that all is well.
    Thank you for blessing us with the story of your build.
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  16. #66
    Join Date
    May 2002
    Location
    Linden, MI
    Posts
    4,663

    Default Re: 69' Banshee Build

    As you are starting to figure out you can't get a good tune without the electric system being perfect. I was really surprised how much the new MSD 6AL2 Programmable improved the performance of my car. Boost makes it even more important.

    Love how clean your engine compartment looks.
    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

  17. #67
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,234

    Default Re: 69' Banshee Build

    Thanks for the update, the engine bay looks great! The Burton kit fits very well without a doubt!

    I am sorry to hear about the daily driver issues, however the fact that your Twin Turbo Skylark will be a daily driver is awesome! I am guessing your MPG will be about 10 MPG with a heavy foot and 20 MPG with a light foot on the highway!
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  18. #68
    Join Date
    Jul 2007
    Location
    Greensboro, nc
    Posts
    4,322

    Default Re: 69' Banshee Build

    I bet you could spin those tires at 60 mph..
    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

  19. #69
    Join Date
    Mar 2003
    Location
    Roseville,MN.
    Posts
    123

    Default Re: 69' Banshee Build

    Thanks for e-mailing me about this thread!!

    This is my old car!! I've been in contact with Mike about this car over the years since I stumbled across a video of it on Youtube and recognized it as my old car. I still miss her, SUPER clean body and undercarriage.

    Mind if I post up some pics of it from when I owned it in your thread? She sure has come a long ways.

    -Steve
    '69 GS400 (clone)
    '71 455 block
    '70 Riv heads
    Poston 284/304-490
    T/A sp1 intake or Iron stocker
    Poston headers
    Holly 800 double pumper
    TH400 modified
    Stock convertor
    3.36 12 bolt posi
    No heat,No blower motor,No ductwork.
    No A/C
    No wipers or wiper motor
    Manual steering
    Manual brakes
    No soundproofing
    No carpet
    No radio
    No speakers
    3410 lbs

  20. #70
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    Good place to post the pics. A lot of history with a 45 year old car. I have owned it for 15 years now. I have always liked hearing the stories and pics from the first 30 years of her life.

    Quote Originally Posted by 69gs400 View Post
    Thanks for e-mailing me about this thread!!

    This is my old car!! I've been in contact with Mike about this car over the years since I stumbled across a video of it on Youtube and recognized it as my old car. I still miss her, SUPER clean body and undercarriage.

    Mind if I post up some pics of it from when I owned it in your thread? She sure has come a long ways.

    -Steve
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  21. #71
    Join Date
    Sep 2012
    Location
    MI.
    Posts
    2,868

    Default Re: 69' Banshee Build

    SWEET car!! Nice work! Do you have any track times with your turbo car?

    Anyway, I noticed that you're thinking about upgrading your brakes, that can get expensive! There is a company that makes and sells ceramic drum brake shoes front and back that they claim to be 38% more braking with their ceramic shoes;

    http://musclecarbrakes.com/


    Should save lots of $$ until you can afford disc if you even think you need to if the ceramic shoes work out for you. I found this company for another v8 member(Mart)he may be trying those soon, maybe he can chime in if he sees this post.(I'll PM him a link to this thread) GL


    Derek
    64 Skylark,401 Nailhead,ST400,3.23:1Posi
    64 Skylark,305Vortec sbc,700R4,12blt Posi 3.73,low 14s. A sbb 300 stroker planned for it.
    72 Skylark Convert. in progress, Not yet assembled 455 .020 over,70 heads with stage1 valves,gasket matched and bowl blended,transmission to be determined.
    65 Chevy Impala,4,400lbs,383sbc,700R4,3.07posi,1.80 60' foot time low 13s @101mph,15mpg city,24mpg highway

  22. #72
    Join Date
    Mar 2003
    Location
    Roseville,MN.
    Posts
    123

    Default Re: 69' Banshee Build

    Quote Originally Posted by tinker14bs View Post
    Good place to post the pics. A lot of history with a 45 year old car. I have owned it for 15 years now. I have always liked hearing the stories and pics from the first 30 years of her life.
    Thanks, I'll get some of the pics scanned and I'll post them up along with the details I have about the cars life before you had her.
    '69 GS400 (clone)
    '71 455 block
    '70 Riv heads
    Poston 284/304-490
    T/A sp1 intake or Iron stocker
    Poston headers
    Holly 800 double pumper
    TH400 modified
    Stock convertor
    3.36 12 bolt posi
    No heat,No blower motor,No ductwork.
    No A/C
    No wipers or wiper motor
    Manual steering
    Manual brakes
    No soundproofing
    No carpet
    No radio
    No speakers
    3410 lbs

  23. #73
    Join Date
    Mar 2003
    Location
    Roseville,MN.
    Posts
    123

    Default Re: 69' Banshee Build

    Here we go, the history of this car as I know it.

    The car started life as a '69 Skylark Custom, I bought the car in the late 80s from a guy that had found it in Georgia with a blown up 350 in it, he swapped in a stock 430 and TH400 and drove it to Minnesota where the 430 promptly seized up and the car got pushed into his garage, it had 142000 miles on it at this time.

    Due to it's early life in Georgia the car was amazingly rust free, Cleanest car of it's age that I've ever seen. I yanked the 430 and swapped in the modded 455 and TH-400 I had in my ratty Minnesota '69 Skylark and it progressed from there. This was a manual brake car and it had been pretty well stripped of all goodies before I got it such as heater, A/C etc.

    Engine mods, all engine machine work was done by Tesar Engineering and it was assembled by me in my fathers garage.

    '71 455 block and rotating assembly
    '70 Riv heads
    Poston 113 cam 284/304-490
    T/A steel rockers and shafts
    T/A sp1 intake
    Kenne Belle oil pump kit
    Poston headers
    Holly 800 double pumper

    During my ownership I also installed a 12 bolt posi with 3.36 gears, the floor shifter, gauges and I also installed all the GS emblems including marker lights, door trim panel emblems , decklid emblem and the grille emblem which was the only used emblem on the car which came off a wrecked '72.

    The car as found, It had mismatched fenders when I found it, a '68 on the left and a '69 on the right. Always drove me nuts.



    The bad 430,


    The 455 a few hours after that pic of the 430 was taken,


    The car as I first drove it with Pontiac wheels and yes that is a black painted GS hood, It went with the car when I sold it but disappeared before Mike bought it.


    The 455 as it looked just before I sold the car,


    The interior,


    And this is how she looked just before I sold/swapped the big block drivetrain for a stock '71 GS350 drivetrain. The dents the Mike fixed are clearly visible in these pictures which is how it was so easy for me to identify this as my old car when I saw it.




    Everything from the radiator to the rear axles were swapped between my car and the GS350, the guy I sold it to still owns his and the engine is still running strong today. The guy I sold the car to was actually too scared to floor it with the 350 in it during the test drive and I'm not sure why but he sold it shortly after buying it to the kid that had it painted gray and I believe that's who you bought it from.

    I miss this car to this day, nothing better than leaving a stop light from an idle and filling the entire intersection with rubber smoke so thick you couldn't see through it, At WOT from a dead stop it wouldn't hook until well into 2nd gear.

    I'm really happy this car found a good home and that it's still being kept alive and that it actually gets used, what you've done with it is simply amazing!

    Thanks for continuing to update me on the car, it is greatly appreciated.

    -Steve


    .
    '69 GS400 (clone)
    '71 455 block
    '70 Riv heads
    Poston 284/304-490
    T/A sp1 intake or Iron stocker
    Poston headers
    Holly 800 double pumper
    TH400 modified
    Stock convertor
    3.36 12 bolt posi
    No heat,No blower motor,No ductwork.
    No A/C
    No wipers or wiper motor
    Manual steering
    Manual brakes
    No soundproofing
    No carpet
    No radio
    No speakers
    3410 lbs

  24. #74
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    Quote Originally Posted by jay3000 View Post
    I bet you could spin those tires at 60 mph..

    Not sure about 60 mph, but I was surprised when I broke them loose at 45 mph yesterday. Was driving to work and a buddy was next to me so I decided to punch it and the car started skipping around.
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  25. #75
    Join Date
    Dec 2006
    Location
    British Columbia, Canada
    Posts
    642

    Default Re: 69' Banshee Build

    UPDATE.....
    How's the car running now?
    Buick #455

 

 
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