Who uses what cam and why?

Discussion in 'Small Block Tech' started by sean Buick 76, Sep 18, 2006.

?

Who uses what cam on thier 350?

  1. TA 212

    37 vote(s)
    26.2%
  2. Poston 114

    11 vote(s)
    7.8%
  3. GS111

    1 vote(s)
    0.7%
  4. TA 113

    5 vote(s)
    3.5%
  5. TA310

    15 vote(s)
    10.6%
  6. TA 290-94H

    24 vote(s)
    17.0%
  7. 246/260@.50 .578/.600 112LC

    3 vote(s)
    2.1%
  8. Other custom grind *specify #'s

    45 vote(s)
    31.9%
  1. racerxjj67

    racerxjj67 Well-Known Member

    That's good to know. Is your car a console automatic or column shift? I have a column shift so I wasn't going to install a manual/automatic shift kit, just a shift improver for hard/crisp shifts by leaving it in "D".
     
  2. gscalifornia

    gscalifornia Small blocks rule!!

    I've got a column shift as well. The shift kit I bought from Turbo Action in Florida many years ago, I don't know if they still sell them. It seemed similiar to many of the other shift improver kits on the market.

    I never did go and modify the governer to make it shift at higher rpms so I can leave it in drive and GO. I usually shift it manually, and wind it to 5600 for the 1-2 and 5800 for the 2-3 when I'm giving it a work out. It will bark the tires when it shifts into second.

    I know I need to get a better set of tires, the little P215-70-14 Cooper Cobras don't hook all the time at the track, though it is fun to blow them away and smoke em on the street every now and then! :3gears:

    My 60' times are usually in the 2.0x to 2.1x range and I know if I could get those down into the 1.8 or 1.9 range I'd like it a lot!
     
  3. sean Buick 76

    sean Buick 76 Buick Nut

    Hector, I have in mind a cam that makes power between 2500 and 7000. That way I can make use of the custom crank and rods I'm geting and the ported heads... Either funny gas or charger to add fun at the track.
     
  4. sean Buick 76

    sean Buick 76 Buick Nut

  5. moleary

    moleary GOD Bless America

    POSTON GS 105A. Great cam, easy 11 second set up in a 455. Not very much vacuum, very lumpy, idles at 1100. I have had it in a street car for 15 years. Makes power to 7000 RPM, but, your bottom end sure better be set up right. Shift at 6500.


     
  6. ks_skyhawk

    ks_skyhawk KS_Skyhawk

    Poston GS118....real nice lope and it really pulls hard to redline.
    I've had Poston 114's and Isky's besides this one. It gives me enough vacuum to operate my accessories and it's the angriest automobile camshaft I've ever had!!
     
  7. lespaul13

    lespaul13 Well-Known Member

    ugh...someone help me... I can't find anything with info on a 292 Erson cam...can someone help me out?
     
  8. Nothingface5384

    Nothingface5384 Detail To Oil - Car Care

    I use the poston gs350-110 because i have a low comp motor (8.5cr)and poston uses lamemin terms and had no clue what the actual numbers ment at the time when i was looking at TA lol

    and oh lespaul check this out
    http://go.mrgasket.com/pdf/BuickCaddy.pdf
     
  9. lespaul13

    lespaul13 Well-Known Member


    thanks....but im not the brightest crayon in the box... i don't really understand those specs. :Dou: ...I can't wait until i'm "un-new" at this car thing...being the new guy, isn't exactly fun...
     
  10. 69cloner

    69cloner MoparKilluh

    Whomever rebuilt my eng 15 + or so years ago must have put in that towing cam..just a tad bigger than stock.. Which ever that one is. I drove another 1970 Lark on saturday that has almost the same setup as mine. 2 bll with hooker headers and it wasn't anywhere near as torquey as mine is. All the power is a lil further up in the high-end. His seemed to take a lil more throttle to burn the tires too.. unlike mine where a sharp whomp on the pedal will break them lose.
    His needed a good power brake. I'm guessing because my lark was originally setup as a long distance tower and already had a trans cooler and beefed up rear suspension for long hauls on the trailer hitch..
     
  11. sean Buick 76

    sean Buick 76 Buick Nut

    Start by read ing article like this. You could also borrow generic hot rot books from the library to get a basic starting point

    http://www.popularhotrodding.com/tech/0607phr_camshaft_basics/
     
  12. lespaul13

    lespaul13 Well-Known Member

    Thanks Sean, you're a great help my friend.Seems quite complex and still confusing, but you have to start somewhere:TU:
     
  13. sean Buick 76

    sean Buick 76 Buick Nut

    All the fancy numbers aside whats important is the rpm range that a cam works best in.

    A stock cam works well from idle to about 4500 rpm before it looses steam.

    A mild cam like yours will start to make power at a little higher rpm like say 2000 rpm and pull to about 6000 rpm

    A race cam will feel week untill 3000 rpm but make big power up untill the heads run out of air (6000 rpm without porting and higher with)

    The reason that everyone suggests a rear gear swap is to keep the motor in the rpm range that the cam will make power.

    Hope this helps, keep asking Chase!
     
  14. killrbuick66455

    killrbuick66455 Well-Known Member

    Im runnning an old Lunati 235... 492 lift 238-248 Duration Bin in the engine for 10 years and out lasted a set of valve springs
     
  15. 71skylark3504v

    71skylark3504v Goin' Fast In Luxury!

    I am not sure what camshaft I would like to use. My motor still has the stock 8.5 to 1 Compression ratio, but the TA 284-88H I want to use requires 9 to 1.
    I am going to swap on ported heads so could the heads be milled to give me that extra point? I would also like to throw in a shift kit and a 2200 stall converter. Replacing my 2.56 gears is not something I would like to do.

    Any advice?
     
  16. killrbuick66455

    killrbuick66455 Well-Known Member

    Hey cason, It depends what heads you to use and and head gasket thickness you can definitly get a .5 compression.. As far as gears go i dont know what rear you have but 331 gears are a nice gear that would wake up your car and not affect driver friendlyness..
     
  17. killrbuick66455

    killrbuick66455 Well-Known Member

    I didnt realize that I posted my cam spec's in the small block section.. :Dou:
     
  18. 71skylark3504v

    71skylark3504v Goin' Fast In Luxury!

    Where can I get thinner head gaskets? TA doesn't have them. I want to have Gessler make me a set of 1971 heads, so any modification there to increase compression is no big deal, and will be done. I am still worried about swapping gears. I am going to have to drive this car back and forth from college for the next few years and I would rather not be winding high RPMs struggling to keep up with traffic, and I know I could swap in a 200R4, but I would rather keep my stock gears and do a trans swap later. Where can I find a deal on a stall converter?
     
  19. Greg Gessler

    Greg Gessler GS Stage1

  20. 71skylark3504v

    71skylark3504v Goin' Fast In Luxury!

Share This Page