Are cartridge emulators worth it? | GTAMotorcycle.com

Are cartridge emulators worth it?

HorizonXP

Well-known member
I'm considering keeping my Ninja 250 for a little while longer. Honestly, the only complaint I've really had about the bike is highway cruising RPMs, which I hope to alleviate with sprockets.

If I decide to keep it longer, I can start to think about upgrading bits on it since I'm not worried so much about resale. At 26k on the odo, by the time I'm done with it, it won't be worth it anyway.

I got to thinking about the suspension on the bike. There isn't really anything wrong with it, but then, I suppose it could be better. The front dives under hard braking and I don't quite get the feeling from the front end that I'd like when cornering. Also, the back end seems to wallow a bit on hard cornering, especially when I get on the gas early (which I can on the 250 with little consequence).

Most people spend their money upgrading the exhaust. Since an Area P full exhaust adds something like 7 HP (max) and saves 7 lbs of weight, it's worthwhile. But I started looking at Race Tech Gold Valve Emulator Cartridges for damper rod forks, and saw that for less money than an exhaust, I could get better forks.

However, it seems few people have done this mod. Those who have, usually ride track. But what about street? Sure, it's not necessary, but neither is an exhaust. Good bang for the buck? Or a waste of time?

(For the rear, I figured I'd pick up a used shock with a remote reservoir. I'm just keeping my eyes out for something cheap that fits.)
 
My race bike has damper-rod forks. Straight-rate fork springs of the correct spring rate for your weight plus the emulators, plus fork spring spacers of a carefully chosen length so that you have the correct sag, will work quite nicely.
 
I put them on my 86 VFR. They are worth it. Damping rod suspension is too harsh on square edge bumps and too soft on everything else.

The gold valve emulators only work on compression and you can tune the rebound with fork oil weight. The compression is tuned by the emulator spring tension.

Overall, it is a good bang for the buck, but it is not easily reversed. (you would need to weld up the holes drilled in the damper rod)
 
I think you have that backwards. Fitting emulators involves drilling additional holes or enlarging them so they have no effect on oil flow -- which is now the job of the emulator.
At least that is how they are installed on an FZR.
 
I think you have that backwards. Fitting emulators involves drilling additional holes or enlarging them so they have no effect on oil flow -- which is now the job of the emulator.
At least that is how they are installed on an FZR.
Not true... From page 44 of Paul Thede's book "Race Tech Suspension Bible" "Installation of the emulaotr does not change rebound damping, therefor, adjustment of rebound damping is made by changing the oil viscosity".

If you understand how they work, you will see they only work in compression.
 
I think you have that backwards. Fitting emulators involves drilling additional holes or enlarging them so they have no effect on oil flow -- which is now the job of the emulator.At least that is how they are installed on an FZR.
What do you think he has backwards?
 
I'd have to say that yes they are worth it. 20 year old bike and the whole bike felt very planted on the race track.
 
The holes in the damping rod that are enlarged in the process of installing that valve, are the holes that affect compression damping. The valve takes over the effect of compression damping.

There is another smaller hole, higher up on the damper rod, which is the rebound hole. Most emulator valve installations don't involve changing that hole.
 

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