Long Travel BS Thread

The past couple pages are talk about bump stops.

 

I dont want to sound like an ass, but with the timing is this a legit question? Im sure you can throw bumps on the kit, but TC doesnt recommend it.

 

I've been looking at those. Obviously the price is good, and I know a lot of mid travel guys that like them but I didn't know if they'd work on long travel. I'm brand new to LT (actually my kit hasn't come in yet)

 

NVM disregard my above post.

 

Yes it was 100% legit. I know nothing about LT and figured upgraded bumpstops would be a good thing to have. I haven't read anywhere that they aren't recommended

 

Hes right that they are not recommended (hydro bumps) and I've also talked to Tim at DMZ he also does not recommend them with these kits even the super bumps from wheeler, I just use the stock bumps with the provided spacer and they work fine for me

 

Cool, when did that happen?

Here is the setup on my old 4Runner before lift spindles.

Set the bumps to hit almost as far down the arm as the coilover tabs.

Works pretty good for what it is but any production kit would need to be modified to do it.

 

I've got superbumps still on mine. Probably not needed since triple bypasses with smallest compression tube closed all the way, but I have bottomed out a couple times and I'm sure without the superbumps it would have sucked a little harder. If you are running coilover+bypasses and you're still using your rubber bump alot, you need to work on your valving. I think the only times I really bottom out are jumps with bad landings and abrupt nose dives (IE big dip down to and then abrupt upward slope). I know for a fact I need to increase my compression valving and that's on the list soon with shock rebuilds when I have the time as my compression tubes up front are all almost closed.

 

Out of curiosity, what valving are you running in your CO?

 

No clue TBH. I called @Downsouth Motorsports and said "Hi I have money, I want coilovers and triple bypasses for a Camburg Kit on a 2015 Tacoma" and they took my money and then about 6-8 weeks later I received two beautiful black and blue boxes. Don't even remember what the tags said. *shrug*

Plan is to just ask whoever rebuild the shocks to up the compression from what ever is there currently, then I can retune.

 

@VolcomTacoma what bed cage do you have?

 

Sorry for my tone...we were having a funny discussion about topics similar and this popped up right at the end of it. Anyway, I have the same kit and although TC is closed on Fridays, if you call them they will tell you themselves that they do not recommend hydro bumps for it. Im still lost in the theory of not getting them, but from what I understand they said it wouldn't be needed and little gained.

I did talk to Tim at DMZ about this, cause initially I was wondering how legit people were about following this. He said that some get super bumps, but in his opinion that super bumps wouldn't really do much either. Like @VolcomTacoma said, many get bypasses and that replaces the bump for this sort of kit. Maybe its the way that TC designed their LCAs, but I believe that Camburg recommends bumps for theirs if you don't run bypasses.

Not sure if you have looked through the install, but TC provides little spacers to extend out your stock front bumps. This is what I currently have on mine, although I havnt flown off any jumps or anything out in VA, it seems to work for now. I plan to get bypasses in time though to eventually remedy this stuff.

Wish I could give you more info here.

 

Yes it is completely possible to fit them in there, however it COULD take a great deal of work tuning the valving, limiting the travel with custom spacers adjusting N2 pressures and oil quantity to get something that would work really well....or just get an externally adjustable bypass.

The following post (even though it's dated) explains a little more in depth with some actual maths. Applicable parts are bolded, these numbers will vary from kit to kit but the end result is the same...a bump stop that is engaged for a significant portion of the suspension's travel isn't really acting as a bump stop. Any bump that contacts the inboard portion of the LCA isnt exactly going to have an efficient motion ratio.

Start the shit storm for dredging up an old jberry post

 

A @jeffz0rz

 

No it's completely true. Most of the time when I see hydro bumps set up on a front end, at ride height the hydro bumps is usually almost touching the lower already, so that means all the up travel will be in bump travel. Pass. Like it said, at that point you should be tuning your bump like a secondary shock since it will be a factor in a large portion of your suspension travel. Most people don't. "It's just a bump".

 

So what do they use as a bump?

so once it again comes full circle, why use a bump as a secondary shock? Why not just....*ahem*...get a secondary shock...(I understand the monetary reason, but shit, if you've got the $$ for LT and the money to fix it, $1300+ish for a set of bypasses isn't really that big of an expense in the grand scheme of things, especially when a set of bumps and sleeves is $500ish)

also, the motion ratios referenced in the jberry post are based on total travel, not just up travel

 

If you're tuning the bump as a secondary shock instead of buying a secondary you're doing something wrong, but there's nothing wrong with tuning a bump in addition to a secondary shock for the best performance. I was just pointing out that it pretty much acts like one because of where it's located when bumping off of LCAs.
After about 5 minutes of research when I was researching LT I concluded that I should save up for coilovers and bypasses as opposed to coilovers and bumps as the benefits of bypasses definitely outweigh the cost difference when it comes to off-road performance. Also, bypasses pull bitches apparently, so obviously I had to go that route.

How is that based on total travel. The bump isn't affecting down travel past ride height. If it is, again, you're doing something wrong. So its mostly affecting up travel, and that's when the motion ratios come in to play. Whereas a secondary shock is mounted to the LCA so motion ratios and angles come in to play at all aspects of travel. Jason was talking about bump travel, so typically people throw a 2" bump up front, but due to where it's located and the angle it's put at, they're usually pretty damn close to touching the bump off the UCA at ride height, so at that point, most of your up travel is riding the bump. And because of the angle the bump is set at so that at full bump the LCA and bump are perpendicular to each other, most of your bump travel the bump is angled off of the LCA, hence motion ratios.

 

This sounds wonderful but the problem is when you have told people to search 200 times what do you think happens when people search? All they find is you telling others to search. Its actually a problem I have noticed on a lot of forums where you search on google and all you find is people saying search noob, or this has already been discussed. Search through 20 google results and that is all you find, no real answer. Makes those forums look like a bunch of ass hats. So just remember the salty ass answer isnt just for today, its going to show up for the rest of internet eternity when the next new guy tries to search

 

I don't know about you guys but I absolutely love riding on bumps through 70% of my suspension travel...

Just because it can be done doesn't always mean it should be done.

 

Especially when you do it wrong, Fabien is hardly even close to riding on bumps 70% of the travel. There is a right and wrong way to do everything