Re: Racetech emulators and shock question, Pointy.
 

What do you do in terms of front rebound damping, Sarah? Everyone seem sto have something different to say on that.

Re: Racetech emulators and shock question, Pointy.
 

Its a secret:cool:

Na depends very much on the rider and their pace, height etc as most of the forks we do are being used for racing.

Re: Racetech emulators and shock question, Pointy.
 

Hi People, little update. So as well as myself there are 6 others at the moment on my list looking for the Debrix Emulators;

Prisspringle
disco
BigshotPie
TicklinJock
Redmist
Chris SVK3

These are the emulators we're talking about:

http://www.debrix.com/41mm-Fork-Damp...24-0361-vt.htm

The problem in buying a single pair from Debrix is the UPS priority shipping / postage charge from the States - it's much more than the price of the emulators themselves. Group Buying works by spreading the cost of postage between everyone until it becomes relatively cheap.

I said I would be putting in the order at the end of the month, and I will. However I cannot say how much this will cost until I know how many people are in. I guess on the 30th I'll confirm numbers (and therefore cost) then PM you all for confirmation. Does this sound fair? That way I won't keep getting asked how much its gonna cost.

Cheers

Kenny

Re: Racetech emulators and shock question, Pointy.
 

myself
****pringle
Disco
Bigshotpie
TicklinJock
Redmist
Chris SVK3
Mickrobbomw
Minty101
Jonnydipstick
Skippy and finally
Muzikill

Will soon be (once I've had confirms via PM) in possession of a pair of Debrix Emulators for a mere £30 delivered!

http://www.debrix.com/41mm-Fork-Damp...24-0361-vt.htm

You might be able to get in on this and further our discount if you are very very quick, need to know within hours please!

kind regards

Kenny

Re: Racetech emulators and shock question, Pointy.
 

IDK about the Debrix, but when you buy the Race Tech emulators, they recommend oil viscosity to match the emulator set up, based on your intended riding. That takes care of the rebound, matching it to the suggested compression damping.

Re: Racetech emulators and shock question, Pointy.
 

More important to match rebound to spring.

My take on it is to weld up the rebound hole to allow use of thinner and better VI oils. You can make comp damping with emu so no need for heavy oil.

Re: Racetech emulators and shock question, Pointy.
 

Sure, it's all interconnected, but if you install proper rate springs and light oil, and set the emulators to give enough compression damping, and that results in not enough rebound damping, you wouldn't change the springs.
Do you know of a way to get more rebound damping other than increasing oil viscosity?

Re: Racetech emulators and shock question, Pointy.
 

Well I convinced myself that welding up the damper rod and then machining it round again wasn't the way forward! I got a working fork but not sure how much extra rebound it made. Small enough difference that I thought "f*** this until I get myself a dyno". That and a set of rods would have been about £500.
Unfortunately you can't use an emulator-like valve in reverse either as it would cavitate.

By "light" oils I mean lighter than if you don't weld hole... ends up in range of 50ishcSt oil for say 85 springs.

But no, I'm not trying to reinvent the wheel, I just do same as everyone else and tune the rebound characteristics using oil viscosity. Too much uncontrolled bleed in damper rod forks to do anything else.

Re: Racetech emulators and shock question, Pointy.
 

If I remember Race Techs description correctly, that "rebound hole" acts as a bleed in both compression and rebound after the emulators are installed.
Just from the experience of using RT's recommended settings and oil viscosity on 4 bikes I've owned, (2 for racing, the other 2 for mostly street and a track day now and then) I know their recommendations work. Damping is good in both directions. With the emulators installed, rebound damping is also controlled by the emulator. It's just not adjustable.

Re: Racetech emulators and shock question, Pointy.
 

Yeah true it would be both directions though minimal effect in comp given the relative sizes of the holes!

Aye but there's a light check spring on the emu, contribution to rebound is minimal. You can see this if you try same fork with and without emu, they are about the same in rebound. If it made lots of pressure on rebound it would cavitate.

What oil racetech recommend? I hear they wrote sv emu instructions before SV existed.