Correction three on one side two on the nut side. This looks like a bad idea.

 

the bolt that holds the roller needs to be longer and you can add weights for both sides of the arm

 

Roger that I was pretty sure I was on the wrong path. Time to hit the auto parts store.

 

just add washers to each allen bolt on all 8 and keep them equal. plus you can go longer on the set screws if needed, plus you can adjust the clickers up or down to fine tune the rpm.

 

Make sure your bolt that goes through the roller doesn't hit if you go longer...looks like it has at one point in time

 

I took the tungstenwashers from stm fits perfect and weights 7 gram a piece

 

Looking for the Tapp black primary spring if anyone has one they would like to sell...thx

 

Can u take just one Allen bolt out of each arm or do you have to take both out if you take one out...can't get my rpms up above 7700 rpm...how many rps roughly per Allen bolt ?

 

1200 xm turbo

 

How much Boost are you running?

 

12-14 psi in 2 feet of heavy powder...headed up mountain in bout 2-3 hrs

 

I haven't had a problem with removing just one Allen bolt, as long as it's the same one in each arm. If your trying to obtain a higher rpm you may want to remove the last of your washers in your through bolts though

I do not recall the RPM per bolt though...

 

I removed all the allen bolts and it changed rpms by about 200 rpms. That was roughly 22g

 

I removed all the allen bolts and it changed rpms by about 200 rpms. That was roughly 22g

200 rpms is all ?...I thought it be way to much if I took out all Allen bolts

 

I haven't had a problem with removing just one Allen bolt, as long as it's the same one in each arm. If your trying to obtain a higher rpm you may want to remove the last of your washers in your through bolts though

I do not recall the RPM per bolt though...

Ok thanks...I'll remove the last of the washers

 

Each allen bolt weighs 2.7g. I've found atleast with my set up the tapp needs huge weight changes. For rpm adjustments. It may have been 250 rpm but in that general area

 

On my set up I was running about 78_7900 with all the allen bolts and 4 washers per arm. I went down to just 2 washers which put my rpm at around 8300.

25 ramps and blue primary. 50/36 helix with beige wrapped at 25lbs

 

Crazy I would of thought it would be way more then that...thanks

 

What target RPM are looking for?

 

85-8600 rpm

 

At 12 pds depending on secondary i would say you would need very little weight if any at all.

When we ran at that range we had NO weight in clutch short bolts holding arm, no set screw.

Same blue spring # 25 ramps secondary 47/40 white BRP spring 26 pds pre load.

All this depends on gearing 24 top 40 bottom, and track 1 inch

If it was me chasing RPM i would take weight out hit my target RPM and work from there.

Good luck

 

Thanks for the help...yesterday went good...was up to 8300...take rest of Allen bolts out today. I've got a mountain set up so it's quite diff set up and harder to keep rpm up. 24 top and 51 bottom gear, turned boost to 17 psi to help get rpms up too. Running a 163 x 2.5 track in 2' fresh.

 

So you took out one set screw and went to 17 psi to get to 8300? Or by taking out the set screw it got you to 8300?

 

Took out 4 of the 8 Allen bolts and 2 washers per roller bolt and turned to 17 psi and came up to bout 8300 rpm in the steep deep snow. Wish it wasn't so hard to pack up a lap top to c exactly what my rpms are cause it's so hard to look at dash when your on the throttle and climbing. By time I get down to the truck my data log is way gone from the hill climbs.

 

so it sounds like you needed huge weight changes as well.

there may be another option for you. there is a way you can put your logging capabilities on a switch. so when you want to log you flip the switch it will start your logging. then flip the switch off and it will stop the logging.

you would have to send martin an email to see which wire it is you have to add the switch into