Ok, I'm new here and coming aboard to help me with getting ideas while sharing ideas already applied to better our 2 TYPHON buggies & a KRATON.
I may get to some pictures loaded as i get familiar with the format here and size limits ....
Having some machines in the shop ( lathe & mill etc ... ) along with tooling doing these mods are pretty easy tho really something not practical for most ... sadly.
What we did was place an A-arm in the mill vise holding it vertical. Then using a drill of the same size as pivot pin get the hole in A-arm perfectly lined up. Removing the pilot drill replacing it with a 1/4" 4 flute end mill.
Then we bored out the outer ends on both sides @ .150" deep. This created shallow counter bores where we're going to press in custom made sleeve bearings.
* This done ( So Far ) on the Top front A-arms, Lower rear bearing carriers, 8 in total right now.
Next was to go onto the LATHE and using some high grade material known as PEEK make up the sleeve bearings that will be pressed into the ends of A-arms. The I.D. hole of the bearing is only a few .001's bigger than the pivot pin O.D. and the bearings O.D. @ .003" larger than the bored out A-arms counterbores creating a press in fit.
Once bearings were pressed into the counter bore of A-arms. Using the OEM pivot pin ran it into the bearing of one side and out the other. A bit of wiggle to get the bores aligned and the A-arm flops freely on the pin.
** The rear Bearing carriers which sit between the tabs of A-arms got the same treatment getting a bearing on each side.
Final trick was THROWING AWAY !! the clip in C shims on front top A-arms and making simple Delrin washers to fit the gap specs wanted on each end. *This removed any fore & aft motion of arms on the pins.
Also tossed away the rear lower carrier washers using BIGGER diameter delrin washers sized to gap & offset wanted.
All said the A-arms and Carriers have virtually NO WOBBLE on the pins now what so ever !!
Wheels stay in perfect tracking alignment and suspension is vastly tightened up !
Onto the track along side my sons stock Typhon the handling is so much improved with the buggy so much more planted with more predictable tracking in & out of the corners, jumps and whoops.
* After now @ 10 packs run threw it the A-arms, Carriers are still just as wiggle free while my sons OEM stock car continues to degrade as it get looser and looser in these critical areas.
Scott
I may get to some pictures loaded as i get familiar with the format here and size limits ....
Having some machines in the shop ( lathe & mill etc ... ) along with tooling doing these mods are pretty easy tho really something not practical for most ... sadly.
What we did was place an A-arm in the mill vise holding it vertical. Then using a drill of the same size as pivot pin get the hole in A-arm perfectly lined up. Removing the pilot drill replacing it with a 1/4" 4 flute end mill.
Then we bored out the outer ends on both sides @ .150" deep. This created shallow counter bores where we're going to press in custom made sleeve bearings.
* This done ( So Far ) on the Top front A-arms, Lower rear bearing carriers, 8 in total right now.
Next was to go onto the LATHE and using some high grade material known as PEEK make up the sleeve bearings that will be pressed into the ends of A-arms. The I.D. hole of the bearing is only a few .001's bigger than the pivot pin O.D. and the bearings O.D. @ .003" larger than the bored out A-arms counterbores creating a press in fit.
Once bearings were pressed into the counter bore of A-arms. Using the OEM pivot pin ran it into the bearing of one side and out the other. A bit of wiggle to get the bores aligned and the A-arm flops freely on the pin.
** The rear Bearing carriers which sit between the tabs of A-arms got the same treatment getting a bearing on each side.
Final trick was THROWING AWAY !! the clip in C shims on front top A-arms and making simple Delrin washers to fit the gap specs wanted on each end. *This removed any fore & aft motion of arms on the pins.
Also tossed away the rear lower carrier washers using BIGGER diameter delrin washers sized to gap & offset wanted.
All said the A-arms and Carriers have virtually NO WOBBLE on the pins now what so ever !!
Wheels stay in perfect tracking alignment and suspension is vastly tightened up !
Onto the track along side my sons stock Typhon the handling is so much improved with the buggy so much more planted with more predictable tracking in & out of the corners, jumps and whoops.
* After now @ 10 packs run threw it the A-arms, Carriers are still just as wiggle free while my sons OEM stock car continues to degrade as it get looser and looser in these critical areas.
Scott