Results 1 to 9 of 9
  1. #1
    Join Date
    Jun 2013
    Posts
    307

    Default Shock Help for FR1 Leaf Mod

    Wanting to know of a good shock package to use on an IMCA Northern Sportmod with chrysler stacked leafs in the back I run on a 1/3 mile semi banked dirt track. Right no I am running Bilstein SZ series Lf 40/40 Rf 50/30 and the rear is 30/30 straight across just looking for some suggestions car seems to work well when the track if heavy or muddy but when it slicks off the car has no forward or side bite.

  2. #2
    Join Date
    Feb 2013
    Location
    NW , PA
    Posts
    188

    Default

    No forward or sidebite isn't shocks , it is something else. Need info , springs , ride height , pinion angle , left% , rear% , etc.

  3. #3
    Join Date
    Jun 2013
    Posts
    307

    Default

    Front spring rates are lf750 rf 850 lr195 rr175 ride height in the front is lf 6.5 rf 7 rear ride height is 7.5 on left and 8.5 on right side. Left side percent is 52.6% rear percent is 56.7% and the cross weight is 52% I have done a little research and am thinking the rear springs are to stiff not allowing the car to roll over onto the rr.

  4. #4
    Join Date
    Feb 2013
    Location
    NW , PA
    Posts
    188

    Default

    Just a little bit more info , car weight , tire size , 52.6% left w / or w/o driver , air pressure , weight location ? Thanks

  5. #5
    Join Date
    Jun 2013
    Posts
    307

    Default

    Car weighs 2320 without driver and is scaled without, we are running on g60 hoosiers with 1.5 stagger in both front and rear air pressures are lf 9 lr 8 rf 14 rr 13 all of the ballast is mounted in the rear atleast 8 inches above the rear frame and the fuel cell is also mounted higher in the chassis with the bottom of it setting on the top of the rear frame rails. Car weighs 2520 when its on the track.

  6. #6
    Join Date
    Feb 2013
    Location
    NW , PA
    Posts
    188

    Default

    LR afco 231mhd 152lbs. , no lowering block , RR afco 231 142 lbs. , 1" adjustable lowering block , start with wheebase equal . Air LF 10 , RF 13 , LR 8 , RR 10 . Ride height 6 1/2 across front , 7 1/2 across rear , with driver , if any corner has to be higher make it the LR if possible , 150 lbs. bite for feature ,80 for heat if you can ( 2lbs + LF air , 1 lb more RR air ) . shouldn't need 56 % rear , 54 or 55 w/driver . String left side ,tires should be even , or LR just outside LF , right side prefer RF 3 or 4 " outside RR . Now for what you originally asked shocks LF 5 , RF 5 or 5C-3R , LR 4 or 5C-3R , RR 3 or 4

  7. #7
    Join Date
    Jun 2007
    Posts
    10

    Default

    For help with an Fr1 Stack leaf car call Lonnie @ Wyman Enterprises, He can help you out (573)826-0242

  8. #8

    Default

    Quote Originally Posted by calracefan View Post
    For help with an Fr1 Stack leaf car call Lonnie @ Wyman Enterprises, He can help you out (573)826-0242
    I agree on the Wyman he knows these cars and will save you from buying the wrong springs and other parts

  9. #9
    Join Date
    Feb 2013
    Location
    NW , PA
    Posts
    188

    Default

    I agree ,after researching this particular car, that my advice may not be the best , it will work but there may be stuff that works better. I was just giving what I know works with leaf cars.

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