I've noticed a few threads on the new Revolution racing shocks and thought I'd throw in our opinion for those of you that can't decide if you like the idea of an internal bypass coil-over on your sand cars. As another performance/fabrication shop we have the option of running ANY shock that we want (we sell King, Fox, Sway-A-Way, Biltein, Revolution). On a recent build the customer requested the Revolutions in only a 2.5" to be added to the 3-linked Toyota Tundra. We were a little skeptical of this heavy of a truck on only 2.5" but it's what he wanted. We were extremelly impressed with the results. This truck handles. In the front it's running a Camburg long travel kit pulling 13" travel and rear 3-link on Revolutions is limited at 20". This customer has commented on numerous occasions about the ease of adjustablity and is inquiring with us about how he can remove the Sway-A-Ways from the front and get Revolutions there too. I have personally dealt with Brandon and the other head honchos over there and they have CUSTOMER SERVICE...most shock companies don't know what those words mean anymore. I'm impressed with their product and currently have my other brand shocks for sale from my F-150. We are doing a full 4-link ground up build that we hope to have ready by Thanksgiving or New Years for Glamis and I have already put my order in for the 3.0" front and rear. Our opinion...shut up and get some.

Welcome to the board. Glad to hear they worked out so well but you will soon learn that...



Just giving you a hard time. But they would be nice to see.

So what makes them work better than a fox or king shock?

for those that own quads most have compression and rebound adjustment that can make a big difference in your ride because a person who weighs 150 will need a softer shock than a 280 pounder so the rear shock is adjustable to suit multiple people. these have been in atc since the early 80s its about time they made them for buggies. but me i want a bunch a shocks with tube things on mine for looks!

You only need one shock per corner. Instead of using a shock to carry the coils, and another shock to control compression and rebound you just have to use one shock. The best thing is that they are externally adjustable. You NEVER have to remove the shock from the car, and take it apart to re-valve it. You turn the adjustments on the top of the shock go test drive and repeat if neccessary.

...correct me if i'm wrong, but the bypass tube adjustments are really for the "fine tuning" of the shocks (the revolutions might be different) and you still need to get the "rough" valving close by taking apart/revalving.

...another question I have & have asked before, is what is the piston diameter of a 2.5 revolution compared to the piston diameter of a "normal" 2.5? ...they have to be quite a bit smaller, more like the size of a 2.0 piston at best. Anyone have a cut-away pic of these??

...and I've never understood why people would pay so much for an expensive coilover shock just to use it as a coil carrier & not at least put a little valving in it.

...correct me if i'm wrong, but the bypass tube adjustments are really for the "fine tuning" of the shocks (the revolutions might be different) and you still need to get the "rough" valving close by taking apart/revalving.

With the Revolution Racing Shocks you never ever have to take the shock apart. The piston inside is solid. There is nothing to revalve. With a typical bypass shock you are correct in that the adjustments are for fine tuning.

...another question I have & have asked before, is what is the piston diameter of a 2.5 revolution compared to the piston diameter of a "normal" 2.5? ...they have to be quite a bit smaller, more like the size of a 2.0 piston at best. Anyone have a cut-away pic of these??

From what I remember the piston is the same diameter as Fox and King.

...and I've never understood why people would pay so much for an expensive coilover shock just to use it as a coil carrier & not at least put a little valving in it.

That is wierd. Never understood that either.

okay, cool...except on the piston diameter...if it's a solid piston, and the O.D. of the shock is 2.5" it's imposible for it to be the same diameter (would be possible if the bypass tubes went thru the piston)

Here are 2 links for more information...

Revolution Racing Shocks #1

Revolution Racing Shocks #2

It would appear the piston is considered solid but thry are using "orifices" in conjunction with the bypass valves. If that helps.

The piston is smaller in diameter due to the fact that it is a duel tube design. However what is the total surface area of a deflected disc design piston, once you swiss cheese the piston, vs. a smaller diameter solid piston? Once you have a solid piston that is forcing all the fluid thru the bypasses I am not sure that the piston diameter is all that critical any longer.

has anyone put a set on a rail? I was looking at buying a set for my new build but they could not produce any info on a rail that had them. I had a hard time paying the same amount for there 4 shocks agianst 8 kings when I know how well the kings work

I have a set on the rear of a new buggy that is being dieled in right now. First trip will be Columbus day. I'll keep you posted. SG

what are you running on the front? why not all 4 corners?

I'm useing fox in the front. It was original a all fox car, butt then switched in the back, because thats where the most differance can be noticed. We actually talked about RR shocks in the front today! I may switch if we think the front needs it. SG

As soon as my car gets done at paint it is going to Revolution for 4 shocks, I ran Fox last year.

[/quote]
...another question I have & have asked before, is what is the piston diameter of a 2.5 revolution compared to the piston diameter of a "normal" 2.5? ...they have to be quite a bit smaller, more like the size of a 2.0 piston at best. Anyone have a cut-away pic of these??
[/quote]

I know that on the FOX internal bypass shocks, the 2.5 piston diameter is the same as a 2.0 shock. That's why they advise not to run them on the rear of cars over 2000 lbs. My dad has them on the front of his V8 four seater and loves them! They work great, but the down side is that they are not externally adjustable, but he bought them from Mark's Sand Trans and he has a pretty good idea how to valve them to make 90% of the people he sells them to happy.

[quote name='RustENutz' date='Aug 25 2006, 07:05 PM' post='1828147']
[/quote]
...another question I have & have asked before, is what is the piston diameter of a 2.5 revolution compared to the piston diameter of a "normal" 2.5? ...they have to be quite a bit smaller, more like the size of a 2.0 piston at best. Anyone have a cut-away pic of these??
[/quote]

I know that on the FOX internal bypass shocks, the 2.5 piston diameter is the same as a 2.0 shock. That's why they advise not to run them on the rear of cars over 2000 lbs. My dad has them on the front of his V8 four seater and loves them! They work great, but the down side is that they are not externally adjustable, but he bought them from Mark's Sand Trans and he has a pretty good idea how to valve them to make 90% of the people he sells them to happy.
[/quote]
Does this mean you must remove the shock, return to town and Pay someone to valve the shock that was sold improperly for that car? Did you tell them your ap? Piston diameter or piston surface area? Valved thru the piston vs valved around the piston. Could the Rev piston be greater not smaller?

I would be rather interested to see the damping characteristics of these shocks say at 1 meter/sec.

Having built, tested and run adjustable internal bypass shocks for a Dakar project, I am well aware of the issues at higher shaft speeds, especially with a solid piston.

Glenn

Hey glenn, please elaborate on these possitive" issues" you have mentioned and then feel free to stand at the Primm finish line with a metric tape and a clock. Glenn, when your car crosses the finish line you will no doubt feel proud of the dampening characteristics and wonder why others fail to see the technological advancements you have achieved here and abroad ( you will have a car here won,t you?)Please provide those astounding Finish results, flow charts and RF shock pics on the winning car from Dakar & year) If your gonna bragg to the SW USA racers, first come race with us then talk all you want. You offer a cool color and a S.A.W. price so tell me again why your shock is as good as a Doeschtech shock?

Nobody else makes an externally adjustable coilover bypass shock. The 2.5" gives you 3 compression adjustments and 1 rebound, the 3.0" shockj is slated to have 3 compression and 2 rebound adjustments.

Bingo! This guy understands the difference.

On a traditional deflected disc shock, the piston dia. determines how many orifices and how much oil can be ported thru the shock as it damps the suspension movement. The piston is still mostly solid, and teh small orifices port the oil. In a bypass shock, it's the area of the bypass tube that determines total flow of the oil, and valving that controls the charateristics.

I don't know the relative value of speed sensitive valving vs position sensitive, but I *think* if you can take the total travel and adjust the valving in enough seperate zones, you can achieve great results by having each zone independently controlled.

Ok, you guys asked for pics...you can barely see the Revolution 2.5" shocks through the rear fender...please keep in mind that this build was NOT by my shop fabricator but by the owner of the truck for our after hour fabrication school.

That's not a bad looking truck. Not my thing, but at least the fenders are painted. Must not be from Lakeside.