Race tech emulators - fill rebound hole?
 

I am about to fit RaceTech Emulators and K-Tech springs to my K9 front forks. Q: after opening out the lower holes on the Damper Rod's, do you leave alone or fill the upper REBOUND hole, having looked on 3 forum's there seems to be a differing opinion, What are Org's opinion or experience please. :confused:

JOHN

Re: Race tech emulators - fill rebound hole?
 

No, don't do it, no need. Don't drill the extra compression holes either, just open out the existing holes a little.

Re: Race tech emulators - fill rebound hole?
 

We didn't fill the holes either. :D

Re: Race tech emulators - fill rebound hole?
 

I followed the racetech instructions and didn't fill in the rebound hole, I found there was not enough rebound damping, albeit for heavy track use. Having filled the holes in there's much more rebound damping and they handle much better. You may not need so much rebound damping for road use though.

Re: Race tech emulators - fill rebound hole?
 

What he said, drilling the extra holes can leave you with NO damping at the very bottom of the stroke. Icanopit is spot on to, it's not needed for the road.

Re: Race tech emulators - fill rebound hole?
 

No, no need to do that..so as they say ^

Re: Race tech emulators - fill rebound hole?
 

Reason you want to close rebound hole is to get more rebound. Since rebound is controlled with oil weight you can than go to thinner oil which is better than thicker oil, more consistent and less sensitive on temperature changes.

Re: Race tech emulators - fill rebound hole?
 

Sorry forgot to say, I've heard that the damer rods in teh SV have plenty of piston ring blow (wash) -by so you can indeed weld up the hole. I've not tried it but I do find the rebound damping is a bit weak as stock. Zadar's right you could do it and control using the oil weight, thinner oil works fine in the emulators which are adjustable anyway. TBH I made the mistakes of using progressive springs in the forks (alost impossible to bottom the forks, or even get much beyond half way), and also drilling the extra holes. With the forks off and springs out, when you pump them you can feel the lack of damping at full compression, but in the real world of road and track, they're way better than stock and enough to scrape the pegs, I think you can't go too far wrong.

Re: Race tech emulators - fill rebound hole?
 

Interesting - so if you aren't closing the rebound holes what weight oil are you putting back in the forks - same as before the emulators or are you using thinner oil?

Re: Race tech emulators - fill rebound hole?
 

Yep, same as before. Rebound is main reason to use heavier oil.