Xr1 help

[7uptruckracer]

Here is what I was told. 275 with a White line rubber 2150 Dynamic, Blue line rubber 2250. Was a good starting point.

[bmchone]

Thanks for all the replys. To clarify, we can only run a certain bump stop and I believe someone already said it earlier in the post that's it is only 1/2 and rocket said it was junk. We can use 1 spring rubber per spring. Rules are crazy.. we're trying a little taller spring for RF and see what'll happen.. again, thanks for all the replys and info.

[billetbirdcage]

Thanks for all the replys. To clarify, we can only run a certain bump stop and I believe someone already said it earlier in the post that's it is only 1/2 and rocket said it was junk. We can use 1 spring rubber per spring. Rules are crazy.. we're trying a little taller spring for RF and see what'll happen.. again, thanks for all the replys and info.

Their rules to save money are ridiculous, Stan and them have no clue how easy it is to get around some of this stuff/rules.

If I had to deal with that rule here is what I'd do.

1. Make a new coil over cone/cup for the bottom of the coil over for a non flat pig tail instead of the flat ones on normal coil over springs. This will allow you to cut any spring to any desired length you need to make the rest of this to work.

2. Cut spring to get the desired travel before you coil bind the rest of the coils without the spring rubber and control when the spring is using the spring rubber for the bump stop. No having to mess with altering ride heights or anything.

3. You can use that single spring rubber and 1/2" RSW bump for your bumpstop. Sure you may need to work with different rubbers or even cut and trim on the ID or OD to get the desired bump rate you're looking for and also work on making sure it doesn't want to squirt the rubber out the side of the spring. But it all doable with some work.

Wow, glad this rule saved me money now instead of installing packer shims to adjust overall travel, I swap out the spring for one that has 1/32 more/less of a round of the coil cut off. So instead of a $1.00 packer shim I now have another spring cut slightly taller or shorter. 10 packer shims = $10.00 vs 10 springs cut different lengths to do same thing = $800.00, Ya that makes sense.

***Note: going off the last time I read their RF rules, they could been amended for all I know so going off what I read rule wise a while back.

[billetbirdcage]

I also think I recall the rule saying nothing besides the 1/2" bump on the shock which means instead of shimming the stop where you wanted it, so you need to alter the mount heights on the coilover to adjust the exposed shaft length, which means installing a jack bolt on the top of the mount to adjust when the shock hits the 1/2" bump.

Again haven't re-looked at rules so.....

[MasterSbilt_Racer]

I also think I recall the rule saying nothing besides the 1/2" bump on the shock which means instead of shimming the stop where you wanted it, so you need to alter the mount heights on the coilover to adjust the exposed shaft length, which means installing a jack bolt on the top of the mount to adjust when the shock hits the 1/2" bump.

Again haven't re-looked at rules so.....

Correct. Only the bump is allowed.

[Mr.Kennedy777]

Correct. Only the bump is allowed.

Can you at least drill some holes in it? Lol

[collateralDamage]

I was thinking more along the lines of a bellcrank for a shock mount that is locked out to engage a 700-1000# spring. The bellcrank ratio would be designed to hold the car up at the rod pressure of the shock at ride height and actually race on a spring. Think of all the money you could save to spend on tires.

[7uptruckracer]

Then they changed the rules AGAIN

[MasterSbilt_Racer]

Then they changed the rules AGAIN

What is it now?

[7uptruckracer]

They got rid of the rules after taking forever to get them in place. Now they allow any bumps, Multiple rubbers, Just no stacks or dual stages and no progressive.

What is it now?

[wbr_0]

So you are allowed any bump stop and multiple spring rubbers?