Axle Hop

How to make it go fast

Moderators: Greenleaf, KTA, BC847, Richie O

Axle Hop

Postby mhuppertz » Wed Jan 14, 2009 3:11 pm

Any of you guys found a "perfect" solution for axle hop? You can get torque arms for 2nd and 3rd gen, but haven't found a set for ours. Guess I could make some!
mhuppertz
 

Postby A_port93 » Wed Jan 14, 2009 4:07 pm

a perfect solution would be coils and links to avoid hop but i think your gunna have to make a set of traction bars. the frame mounts would be easy but it just depends if you want to locate the bar to brackets off the bottom of the u bolt plate or whatever you want. but as far as i know there are no off the shelf kits. if it was me id check to see what the differences in bolt patterns are between the off the shelf kits for other trucks and steal some off one that has the same pattern. but i dont think that the frame mounts from another year truck will work cos i think just about all trucks besides ours are boxed frames post 89 or so. maybe the fullsize pre super duty fords?
93 w250 getrag 220k 60/12wg over an ht3b/26 and ddp sticks, south bend ofe
A_port93
fuel screw!!!!
 
Posts: 27
Joined: Tue Mar 13, 2007 10:03 pm
Location: Gresham, Oregon

Postby KTA » Wed Jan 14, 2009 4:50 pm

I am pretty sure you can get caltracs for these trucks. Personally I just let my tires down and band my leaf springs together so they won't wrap.
Fleet of Junk: 1989 D350 627rwhp 1300 tq B-1/Hx60 twins, KTA pump/injectors, ported head, BIG fuel supply. 13.75@ 109.5mph 1/4: 1992 W350 Cab-chasis, 1993 W350 ext cab cust.370 inj Hx40/16cm 290rwhp hydroboost brakes,1984 D350 crew-cab another project.
User avatar
KTA
diesel guru/mod
 
Posts: 1855
Joined: Thu Jan 04, 2007 2:23 pm
Location: Shelby County, Ky
Top

Postby sdstriper » Wed Jan 14, 2009 5:50 pm

KTA, as in metal banding used for shipping etc.?
1989 D250, 727, 3.07, BHAF, 4" exhaust, Usual Suspect Gauges, tuned VE, OSPP
sdstriper
fuel screw!!!!
 
Posts: 297
Joined: Fri Jan 05, 2007 4:57 pm
Location: Sioux Falls, SD
Top

Postby KTA » Wed Jan 14, 2009 6:36 pm

No as in 2 bolts and 2 metal plates per spring pack to sandwich and clamp the leaves together. By doing that it has to try to wrap the whole spring pack instead of just the bottom couple of leaves.
Fleet of Junk: 1989 D350 627rwhp 1300 tq B-1/Hx60 twins, KTA pump/injectors, ported head, BIG fuel supply. 13.75@ 109.5mph 1/4: 1992 W350 Cab-chasis, 1993 W350 ext cab cust.370 inj Hx40/16cm 290rwhp hydroboost brakes,1984 D350 crew-cab another project.
User avatar
KTA
diesel guru/mod
 
Posts: 1855
Joined: Thu Jan 04, 2007 2:23 pm
Location: Shelby County, Ky
Top

Postby Richie O » Wed Jan 14, 2009 6:46 pm

KTA wrote:No as in 2 bolts and 2 metal plates per spring pack to sandwich and clamp the leaves together. By doing that it has to try to wrap the whole spring pack instead of just the bottom couple of leaves.


KTA, does that really take the wheel hop out? My 89 w250 has the smaller factory blocks and never has wheel hopped, but my 93, what little I have driven, it seems to hop bad. I want to be able to lay a patch without bustin the driveshaft out.
1989 W250 727, 3.07 L/S, S300, P/S Intercooler, Stans exaust, Pump adjustments, 127k miles,297 hp
1993 W250 extended cab, rag, 4.10 l/s, 6x16's, HTT 62/71/14 piston l/p, Isspro EV series tach, fuel pressure, boost, oil pres, water temp, volt, pryo, 132k/ 301 hp
1992 W250 with NV4500, 3.54's, 16cm 60mm GDS H1C, ground stock cone, Isspro tach, pryo, boost, fuel pressure, slow, rusty, dented,180k
User avatar
Richie O
Administrator
 
Posts: 4171
Joined: Sat May 17, 2008 9:01 pm
Location: New England
Top

Postby mhuppertz » Wed Jan 14, 2009 8:15 pm

I'm surprised that I didn't break something at the drags. With the large blocks on my truck I think I'm going to need a pretty thick bar going from the bottom of the axle to as far up the frame I can without ruining offroad clearance. I think I can make a set if I can figure out where to put the zerks so they won't get scaped off.
mhuppertz
 
Top

Postby Richie O » Wed Jan 14, 2009 8:25 pm

I have seen the bars that go up to the frame. Some have a top and bottom bar and some have just the bottom bar. If it has only the bottom bar does that just keep the axle from moving front to back and does that alone stop axle wrap?
1989 W250 727, 3.07 L/S, S300, P/S Intercooler, Stans exaust, Pump adjustments, 127k miles,297 hp
1993 W250 extended cab, rag, 4.10 l/s, 6x16's, HTT 62/71/14 piston l/p, Isspro EV series tach, fuel pressure, boost, oil pres, water temp, volt, pryo, 132k/ 301 hp
1992 W250 with NV4500, 3.54's, 16cm 60mm GDS H1C, ground stock cone, Isspro tach, pryo, boost, fuel pressure, slow, rusty, dented,180k
User avatar
Richie O
Administrator
 
Posts: 4171
Joined: Sat May 17, 2008 9:01 pm
Location: New England
Top

Postby gear jammer 91" » Wed Jan 14, 2009 8:28 pm

superlift used to make traction bars that mounted on top of the axle tube and mounted to the frame for just about every thing. I ran a set on a toyota, they worked great for it. I also used leaf spring clamps on a different toyota to solve the same problem. I realize toyotas make about 15hp, but I violently and repeatedly abused both trucks, and both fixes worked.
Sold 91 now-intercooled W250, 388WHP 923WTQ on #2 only 423WHP 968WTQ on meth 0% correction.
01 LB7
User avatar
gear jammer 91"
14mm rotor
 
Posts: 526
Joined: Tue Nov 13, 2007 10:18 pm
Location: Yacolt WA
Top

Postby KTA » Wed Jan 14, 2009 8:42 pm

My truck is a 2wd so I have no blocks at all. I am certain clamping would help your setup, now as to if it will cure it I don't know. The blocks are pretty tall and give quite a bit of flex to the axle and springs. Traction bars can really make for some rough rides, as an alternative for race use you could run some heavy cables from the bottom of the axle to the rear hitch or frame.
Fleet of Junk: 1989 D350 627rwhp 1300 tq B-1/Hx60 twins, KTA pump/injectors, ported head, BIG fuel supply. 13.75@ 109.5mph 1/4: 1992 W350 Cab-chasis, 1993 W350 ext cab cust.370 inj Hx40/16cm 290rwhp hydroboost brakes,1984 D350 crew-cab another project.
User avatar
KTA
diesel guru/mod
 
Posts: 1855
Joined: Thu Jan 04, 2007 2:23 pm
Location: Shelby County, Ky
Top

Postby pulltilbroke » Wed Jan 14, 2009 9:47 pm

Another Idea would be to build a single bar and run it fron the top of the rear axle to the hitch or frame
90 W250 reg cab, Modified knuder valve, reversed reciprocting dinglearm adjusted, High volume flux capacitor,upgraded whirlygig, A clutch and a hitch
93 W350 ext cab dually, getrag and a few adjustments
pulltilbroke
14mm rotor
 
Posts: 1410
Joined: Fri Jan 18, 2008 1:20 am
Location: Eagle Ne
Top

Postby mhuppertz » Wed Jan 14, 2009 10:08 pm

KTA wrote:My truck is a 2wd so I have no blocks at all. I am certain clamping would help your setup, now as to if it will cure it I don't know. The blocks are pretty tall and give quite a bit of flex to the axle and springs. Traction bars can really make for some rough rides, as an alternative for race use you could run some heavy cables from the bottom of the axle to the rear hitch or frame.


Interesting idea, but I have seen some pretty fat cables snap undo shock loads. I might try it anyway!
mhuppertz
 
Top


Return to The good stuff

Who is online

Users browsing this forum: No registered users and 53 guests