Important

altrocker1 said:
so...
looking at PAC's website, what are their estimated lift heights based on? any specific model? i'm looking at their 22" 165 in/lb springs that say they net 4"...but on what?
Click to expand...


Take a look at other lift springs and compare the unsprung height and the spring rate. I have Clayton 6.5" lift springs now and they're an inch shorter and slightly softer than PAC's 8" springs, so the should actually be close to a 8" lift spring.

How that relates to a vehicle depends on the coil bucket position, etc, but it will get you started when you're trying to compare.

I don't bother with a manufacturer that doesn't list at least the basics about their springs.
 
RedHeep said:
Take a look at other lift springs and compare the unsprung height and the spring rate. I have Clayton 6.5" lift springs now and they're an inch shorter and slightly softer than PAC's 8" springs, so the should actually be close to a 8" lift spring.

How that relates to a vehicle depends on the coil bucket position, etc, but it will get you started when you're trying to compare.

I don't bother with a manufacturer that doesn't list at least the basics about their springs.
Click to expand...

i wound up ordering their 22" coils that have a lower spring rate (165 in/lb). after looking around at a few other brands and comparing their spring rates/lengths and doing some math it seems like they should net about 4". i'm still going to have to use a spacer of some sort since my rear will be taller, but the next coils up from that seems like they will be too tall.
 
terrehautian said:
So I take it ROTM thing died off? Not surprised, it did that on another car forum I was on also.
Click to expand...

It was slowing down a lot. then one month i forgot to post one, no one seemed to notice.
 
BRIANHO13 said:
not a perfect print, but not bad for first shot at it.



I can easily fix the gaps with acetone (used like glue)
Click to expand...

If you scaled it up maybe 4-5% you'll have much sturdier 'walls'. This is why I opted for a dual filament unit as you can print 'support structure' out of a soluble filament and then have the 'project structure' printed with the regular spools. Works wonders and you can complete much more detailed models/parts.
 
altrocker1 said:
so...
looking at PAC's website, what are their estimated lift heights based on? any specific model? i'm looking at their 22" 165 in/lb springs that say they net 4"...but on what?
Click to expand...

I'm running their JeepSpeed 4" 220 or 200lbs coils in my red 2dr. 2" spacer to match the overly tall RE 3.5" hd full leafs. They feel very soft but with the combo of crap shocks and stiff leafs they do alot of the work.

I'm sold on them, only coil I'll buy now.
 
I think the 200 and 220 coils are 20" unsprung but I'm sure the spring rate makes up that difference pretty fast. I had coils that were 220 spring rate on my last xj and it rode like a dump truck. My mj had Rusty's coils and crappy shocks with no sway bar and other than the slight body roll I loved the way it rode. I know the progressives will ride differently but I'm looking forward to giving them a try
 
I like extremely low rate, use a spacer, and limit strap them. The preload at full droop helps rebound. Valve the shit out of them on the compression side.

On another note, it's not even worth buying expensive springs if you're not going to pair it with the right shock.

Aim for at least 5" of up travel. Any less it's hard to tune and you're going to end up with a compromise.
 
Last edited:
99SJ_Ex said:
If you scaled it up maybe 4-5% you'll have much sturdier 'walls'. This is why I opted for a dual filament unit as you can print 'support structure' out of a soluble filament and then have the 'project structure' printed with the regular spools. Works wonders and you can complete much more detailed models/parts.
Click to expand...


Like I said this was first pass using this machine, fully intended it to be a learning experience.
 
If you have any questions about the PAC stuff, contact Jason Youd on the book of faces. If he can't answer it, he will find someone that can.

He's the PAC rep that makes all the Jeep events. He also is the one that donated the set of PAC springs we gave away in the GivewayXJ drawing.

Very good dude.

mac 'mention NAXJA' gyvr
 
For those that dont see it on facespace. i am bragging a little about this online because im pretty excited about it. last night in class i built a completely off grid standalone 48v battery based PV system. as you see the light is on and we are completely off grid. this has been fun for me because i hope to live fairly low grid if not completely off someday.

934790_10204089236006797_7432045114709315196_n.jpg
 
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