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  1. #1
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    Dec 2015
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    Exclamation 72 Skylark Pro Touring Questions

    Hello! I am new to the forum and loving every minute of it!! But need some help! i have a 72 skylark 350 4bbl i recently purchased. Extremely clean car with only 83,000 original miles. My plan is the take this car into the pro touring direction. Im installing a CPP Stage 4 pro touring kit in the upcoming weeks. Im starting this thread because im having trouble deciding what tire and rim sizes i should go. I like the American Racing VNCL Classic Torq Thrust 2 in mag grey. I need at least a 17 inch wheel to clear the 13inch rotors in the front and 12's in the back. For tires I like the Michelin Super sports as well as the GoodYear Eagle F1's. Im looking to get the best possible performance i can BUT i also really want that mean staggered look. What are your thoughts? Also what offset/backspacing will i need?

    Also, For my rear end i know i have a 10 bolt 8 1/2 28 spline peg leg. What should i do to improve its performance and get rid of that peg leg? New third member and axles? any suggestions?

    Thanks

  2. #2
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    Exclamation Re: 72 Skylark Pro Touring Questions


  3. #3
    Join Date
    Feb 2002
    Location
    North Carolina
    Posts
    26,420

    Default Re: 72 Skylark Pro Touring Questions

    Quote Originally Posted by OC72 View Post
    For tires I like the Michelin Super sports as well as the GoodYear Eagle F1's.
    Thanks

    Many a GT500 Shelby has been wrecked using those factory installed FI hockey pucks Goodyear calls tires. I ditched those F1s on my spouses 14 Shelby at about 600 miles before they caused a serious accident and installed Michelin PSS tires. There was an amazing improvement. Do a search and see how may opinions think the F1s are a good track tire for road courses when warmed up, but do not put them on the public roads when the temps are down. They also have poor traction from a dead stop. Some F1s have cracked and were rendered unusable from simply being exposed to cold temps during shipment by rail from the Ford Michigan plant to dealers.

    http://www.svtperformance.com/forums...by-GT500-Tires


    "It should be illegal to make tires this bad. There is NOTHING GOOD ABOUT THESE TIRES. They are in my opinion actually quite dangerous, terrible traction, and if it starts raining park the car immediately. Just Junk!!! REmove ASAP"

    "What a pile of crap. Horrible tire for the money and absolutely no traction even when up to temp. What was GoodYear thinking when they designed this tire? Came stock on my 2012 300 SRT8 and cannot get them off fast enough. I've driven on Chinese tires for under $100 that performed better than these so called "Ultra High Performance" tires. DO NOT BUY!!!"

    "Terrible Tires that came originally with the car. Stay away if you value your life in wet weather. The tires also wear down within 20,000 miles in normal driving."

    http://www.1010tires.com/Tires/Revie...+Supercar?px=1

    Having said this the PSS tire is not without criticism for a wiggle wobble at high speed on both Vettes and Shelbys.
    http://www.fordgt500.com/forums/1871385-post24.html
    http://www.corvetteforum.com/forums/...ss-wobble.html

    PSS tires in some sizes are in short supply and are not even scheduled for another run by Michelin.

    http://www.svtperformance.com/forums...t-availability


    Nitto has just released a new similar high performance tire that appears to be the replacement for their 555 series.

    http://www.svtperformance.com/forums...-Photos-Inside!!

    http://www.svtperformance.com/forums...n-of-the-NT555
    Jim Lore
    BPG 1037
    "If you cannot clear up the confusion at least make the confusion clear."

  4. #4
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    Dec 2015
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    Orange County, CA
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    Default Re: 72 Skylark Pro Touring Questions

    Good to know! Im perfectly happy choosing the Super Sports. My dad runs super sports on his 68 Gto. 245/40/18 and 275/40/18.

    trying to do the same on my skylark but im having trouble finding supersports in some sizes :/

  5. #5
    Join Date
    Apr 2011
    Location
    N. Mankato, MN
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    696

    Default Re: 72 Skylark Pro Touring Questions

    OC, wheels and tires are really going to wake your car up. Look forward to seeing the progress!
    Jim
    N. Mankato, MN

  6. #6
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    Default Re: 72 Skylark Pro Touring Questions

    Quote Originally Posted by gs66 View Post
    OC, wheels and tires are really going to wake your car up. Look forward to seeing the progress!

    Tank you!! Big plans in the works! will share

  7. #7
    Join Date
    Feb 2002
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    North Carolina
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    Default Re: 72 Skylark Pro Touring Questions

    Quote Originally Posted by OC72 View Post
    Good to know! Im perfectly happy choosing the Super Sports. My dad runs super sports on his 68 Gto. 245/40/18 and 275/40/18.

    trying to do the same on my skylark but im having trouble finding supersports in some sizes :/
    Better read the threads on the PSS death wobble which Michelin will not even allow to be posted on their own site. I am suspicious they are doing a redesign because so many PSS sizes are no longer in production.
    Jim Lore
    BPG 1037
    "If you cannot clear up the confusion at least make the confusion clear."

  8. #8
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    Default Re: 72 Skylark Pro Touring Questions

    Quote Originally Posted by flynbuick View Post
    Better read the threads on the PSS death wobble which Michelin will not even allow to be posted on their own site. I am suspicious they are doing a redesign because so many PSS sizes are no longer in production.

    What tires are you running on your GS? what size?

  9. #9
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    Feb 2002
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    North Carolina
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    Default Re: 72 Skylark Pro Touring Questions

    It is just for show so it has reproduction G60 15 Goodyear Polyglass tires. Those are expensive antiquated tires made just like the factory originals. If you ever drove on a set, you would think something is wrong with your suspension.

    If I were doing a car like yours I would be looking at the Toyo R888 tires like I ran on a 64 Sport Fury or the new Nitto 555 G2s.
    Jim Lore
    BPG 1037
    "If you cannot clear up the confusion at least make the confusion clear."

  10. #10
    Join Date
    Sep 2002
    Location
    Wherever military sends me
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    443

    Default Re: 72 Skylark Pro Touring Questions

    There are a few different versions of Goodyear Eagle F1. The F1 GS D3 is a great tire...awesome wet and dry grip! But the Michelin Pilot Sport is amazing too.
    Last edited by afracer; 01-03-2016 at 03:55 PM.
    Andy
    -------------

    1969 Buick Sport Wagon 400 .....14.14@99 best, non-posi
    1972 Datsun 1200 Coupe ...... Just dyno'd 285 rwhp!

  11. #11
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    Feb 2002
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    North Carolina
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    Default Re: 72 Skylark Pro Touring Questions

    Quote Originally Posted by afracer View Post
    There are a few different versions of Goodyear Eagle F1. The F1 GS D3 is a great tire...awesome wet and dry grip! But the Michelin Pilot Sport cup is amazing too.
    These are the F1 Goodyear ultra high performance tires rated for 200 mph.

    They get about the worst ratings you can get:

    http://www.1010tires.com/Tires/Revie...+Supercar?px=2
    Jim Lore
    BPG 1037
    "If you cannot clear up the confusion at least make the confusion clear."

  12. #12
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    Sep 2002
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    Wherever military sends me
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    Default Re: 72 Skylark Pro Touring Questions

    Quote Originally Posted by flynbuick View Post
    These are the F1 Goodyear ultra high performance tires rated for 200 mph.

    They get about the worst ratings you can get:

    http://www.1010tires.com/Tires/Revie...+Supercar?px=2
    Yep, the F1 Supercar is a terrible tire. Had a set on my wife's car, they are crap compared to the F1 GS D3.

    http://www.tirerack.com/tires/tires....Eagle+F1+GS-D3
    Andy
    -------------

    1969 Buick Sport Wagon 400 .....14.14@99 best, non-posi
    1972 Datsun 1200 Coupe ...... Just dyno'd 285 rwhp!

  13. #13
    Join Date
    Nov 2015
    Location
    Oregon
    Posts
    24

    Default Re: 72 Skylark Pro Touring Questions

    I recently replaced the wheel/tire package on my 72 Skylark, so I know exactly the thought process you are going through.
    I chose a 17x8 wheel for all 4 corners to keep things simple. US Mags Bandit because it is reminiscent of Buick Rallye wheels.
    For tires, I wanted to match the original wheel/tire diameter as closely as possible for both visual reasons and speedometer accuracy.
    Researching tire sizes, I found that matching the stock diameter was trickier than expected, and there were not as many choices in a good tire as I hoped.
    I ended up selecting BF Goodrich g-Force Sport Comp-2 tires from BF Goodrich in the 235/55R17 size. They look much better than the 205/70R14 tires that the car came with, without looking odd or oversized for an old car. Performance-wise, they are a very nice tire so far, but I've had good luck with BFG in the past on other cars, especially my SVT Focus.

    I'm not planning on a super radical Pro Touring build, but the overall plan includes front disc brake conversion, a suspension kit, upgrading from the 3 speed manual to either a 4 speed Muncie or possibly a 5 speed (why not dream big?).
    Current configuration has a 4 barrel Edelbrock, a floor shift conversion for the 3 speed Saginaw, TA Stage 1 intake and 2.5" dual exhaust. Lots more work to do, but having fun the whole way!

    IMG_2153 - Copy.jpg


    Darron

  14. #14
    Join Date
    Mar 2003
    Location
    Highland, Indiana, USA
    Posts
    844

    Default Re: 72 Skylark Pro Touring Questions

    Quote Originally Posted by OC72 View Post
    Hello! I am new to the forum and loving every minute of it!! But need some help! i have a 72 skylark 350 4bbl i recently purchased. Extremely clean car with only 83,000 original miles. My plan is the take this car into the pro touring direction. Im installing a CPP Stage 4 pro touring kit in the upcoming weeks. Im starting this thread because im having trouble deciding what tire and rim sizes i should go. I like the American Racing VNCL Classic Torq Thrust 2 in mag grey. I need at least a 17 inch wheel to clear the 13inch rotors in the front and 12's in the back. For tires I like the Michelin Super sports as well as the GoodYear Eagle F1's. Im looking to get the best possible performance i can BUT i also really want that mean staggered look. What are your thoughts? Also what offset/backspacing will i need?

    Also, For my rear end i know i have a 10 bolt 8 1/2 28 spline peg leg. What should i do to improve its performance and get rid of that peg leg? New third member and axles? any suggestions?

    Thanks
    I used a Powertrax 1920-LR for in my rear end. I have a few hundred miles on it. It took a little time to get used to the clicking in tight corners but it doesn't bother me anymore.

    http://www.jegs.com/i/Powertrax/754/1920-LR/10002/-1
    Project: Warbird - Zero deck '72 block bored .030, 10.25:1 Hyper slugs, '75 crank and rods, Poston GS114 (.480/.495), Comp Cams rockers and shafts, TA Stage 1 350 Intake, Q-Jet, 1" open spacer, Holley Blue pump and regulator, MSD 6AL, Accell HEI Super Coil, Taylor wires, AC plugs Melling HV oil pump, Hooker Super Competition Headers, Supertrapp 5A Stainless suppressors. B&M kitted TH350, 2800 TCI converter, 8.5 w/lockright locker and 3.42 gears.

  15. #15
    Join Date
    Mar 2003
    Location
    Highland, Indiana, USA
    Posts
    844

    Default Re: 72 Skylark Pro Touring Questions

    Quote Originally Posted by OC72 View Post
    What tires are you running on your GS? what size?
    Sumitomo HTR Z II P275/40ZR17 all four corners. Mounted them on 2000 Camaro SS 10-spoke wheels. Tire Rack has them for $92.25 a piece.
    Project: Warbird - Zero deck '72 block bored .030, 10.25:1 Hyper slugs, '75 crank and rods, Poston GS114 (.480/.495), Comp Cams rockers and shafts, TA Stage 1 350 Intake, Q-Jet, 1" open spacer, Holley Blue pump and regulator, MSD 6AL, Accell HEI Super Coil, Taylor wires, AC plugs Melling HV oil pump, Hooker Super Competition Headers, Supertrapp 5A Stainless suppressors. B&M kitted TH350, 2800 TCI converter, 8.5 w/lockright locker and 3.42 gears.

  16. #16

    Default Re: 72 Skylark Pro Touring Questions

    I put 255/40 on front and 295/35 rear , 18" U.S. Mags. Car is lowered 2" . Pics can be seen on website: "hotrods by dean" gord
    1968 Riviera, nice restoration by my buick mentor Riv Ed (rest in peace Ed your Riv is in good hands)
    1969 2 door wildcat, bench, posi 90K Canadian car
    1969 2 door wildcat, buckets, discs, air, etc.. 60K Canadian car
    1970 GSX 10-10, auto, a/c, California emission car, older resto by Tri Shield
    1971 GSX Cortez Gold 455 non-stage Older resto by "Then and Now"
    1971 Skylark resto mod? pro tour? Tri shield 470, richmond 5 speed, etc..original Az car

    WOT member
    GSX Reunion attendee

 

 

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