Big Bore shock set up?

[Pope]

I just got my Big bore shocks in and I am bouncing around about which pistons to use. I am going to mod the shocks to get the ride hight I like and am using 30wt shock oil. I was thinking 1.6T pistons to give it a little easier recoil but I don't know if it will be to fast and cause it to be bouncy. Should I go 1.6T or just 16. Or am I way off and need to go with the 1.4 or 1.4T?

 

[frddyj]

do you know the difference between 1.4 & 1.4t?

 

[Brushlessboy16]

one is probably tapered. depending on how its oriented, its adds an amount of dampening in one direction without compromising the action in the opposite direction

 

[Pope]

Yes the T ones are tapered. point the big end up it makes it dampen less and like a none tapered piston. Point the big end down it dampens like a none tapered piston but recoils faster. None tapered pistons react the same when compressed and when decompressing.

Why would you want that you may ask. If you are driving over very bumpy uneven ground and you want your shocks to recoil faster to alow the tire to drop faster to keep traction you use the tapered ones with the big end down. The only down side to it is that it can cause the truck to "Hop" back up after being compressed making it uncontrolable. It is a fine line in shock tuning just as with anything else really was just looking to benefit from everyones experince.

 

[frddyj]

alex, is this set up gonna be for your race or bash savage?

 

[Pope]

Race savage. Bash savage is getting the threaded body alum shocks that were on the race savage.

 

[texasavage]

Alex mayeb you can help me with this,

I never really got how this works. I think of shock oil like water or air, and water can only flow as fast as it's smallest orfice (i.d.) right? So how does the tapered work?

I need to find a good pic, always been more of a visual person

 

[Pope]

Well here it goes.

It works because the force on the opening is the same as the vacume created on the other side meaning that the vacume side can take as much as comes out. There is no restince behind the hole. So it is the face of the hole that matters. And the fluid simply speeds up as it passes though the taper. This only works because of the equal negative pressure on the other side of the piston. That is why it is so important not to have air in your shocks as the air will expand and elimanate the negative pressure or contract the other way elimanating positive pressure.

 

[texasavage]

Well here it goes.

It works because the force on the opening is the same as the vacume created on the other side meaning that the vacume side can take as much as comes out. There is no restince behind the hole. So it is the face of the hole that matters. And the fluid simply speeds up as it passes though the taper. This only works because of the equal negative pressure on the other side of the piston. That is why it is so important not to have air in your shocks as the air will expand and elimanate the negative pressure or contract the other way elimanating positive pressure.

Thanks Alex!

So it speeds up when it goes from the small side to the larger side of the taper? And that's why if the large side of the taper is down the shock will recoil faster and compress at regular speed?

I can kinda of see it, but i'm gonna need to let it settle in alittle more. There is alot of smoke comming out of my ears right now.

Boy I wish I was as smart as the rest of you! 🙂

 

[Pope]

Went with 1.6 piston all around w/ 30wt shock oil. Small spacers in front shock to lower them. The back was perfect.