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different thread to do that effort justice. The only thing 20 pages of portals has taught me is that I can probably use them to pump out my mom’s basement when it floods. No brake calipers needed for that.

put some numbers into a spreadsheet. Based on OEM SAS hard points for rear links from CAD geometry. attached are some figures of anti-squat about rear pitch instant center. shown are 30” tires (since I think this is an oem configuration), 35s, 40s, and 40s with portals. Anti squat is positive...

No doubt you have experience with design and development of portal components. No doubt these components have been tested fairly rigorously throughout the many years of racing experience and recent consumer product development… but in NO way do you guys do thorough and rigorous system level...

this may be precisely the level of critical thinking that went into system level testing at 74weld. Wait just a minute.. are you a consultant? seriously though the system level testing is not in the same universe as aerospace applications. Fully understand the resource limitations that lead to...

🤣🤣🤣🤣🤣😁 system level testing vs component level

🤣🤣🤣🤣🤣🤣🤣🤣

Preload is very misunderstood. If you don’t understand accutune’s comment then you need to rethink your life choices. Seriously though it is important to appreciate what this means. to add further to this thought, again more theoretical but meaningful. The spring rate is designed for the...

I always knew who the smart ones on this forum were. And yeah I don’t believe @popo_patty has ever used a floppy disk. Needs to be a 5 1/4 for it to count.

Of course unsprung mass matters but it can be tuned out by the damper. My academic background drives me towards more theoretical discussions. There most definitely exists an ideal spring rate for your given as built Bronco that satisfies your use case. That requires an infinite number of spring...

absolutely. You guys do a great job. Just some additional thoughts on spring rates that many folks don’t consider. Damping can overcome and control lots of suspension responses. It is pragmatically a much easier parameter to control than spring rate and thus has much more profound real world...

I am going to say the most dominant parameter for suspension response is the spring rate. It dictates the fundamental frequency of your suspension, both displacements and transmitted forces. You want to get that dialed in. The damper (shock) then simply varies both displacements and forces about...

Ride has very accurate numbers. For king and fox also. These may not be using same reference points

Stay away from worrying about wheel travel numbers. As long as the LCA is oem then shock travel becomes the most basic metric. All shocks mounted on oem LCA produce identical wheel travel for the same shock displacement. Also wheel travel requires knowledge of LCA motion ratio (motion...

Absolutely and well said. I don’t think anyone is arguing against this, I am definitely not. There is a bigger picture however, where objective insight into various scenarios can provide valuable information. I don’t think that anyone is arguing the value of “free” ground clearance without...

no margaritas today. Brain functioning only slightly better. May need to start back up soon. portals lift the entire vehicle and major suspension components by a fixed amount. Say 4” for these units. So the rear control arm geometry is unaltered, thus the new pitch instant center will have a...

I concur… @SierraBronco is clearly the issue here. That guy wouldn’t teach me to weld.. so I lost my freaking wheel lock key… dude, you owe me some new wheels. Come to think of it, pretty sure it is his fault my lawnmower broke last weekend. That bastard.

Most definitely my favorite forum troll. more appropriately stated as highly knowledgeable skeptic… if I were to spin this for marketing purposes.

you are not going to get very far on here until you actually do this. You are just trying to deflect and spin things for marketing purposes. Lots of knowledgeable people on here that have lots of experience with your products. Folks would react better if you actually did try to answer questions...

@Kristian@74W the brake caliper brackets were a 74weld mistake. Taking some ownership of mistakes goes along way. Coming on here and trying to talk your way out of it and laying blame elsewhere is not confidence inspiring. it should be in everyone’s interest to get improved products reducing...

the braptor is holistically SYSTEM level engineered to last >100k with minimal maintenance. Unlike aftermarket products that only engineer their parts (sometimes) and do minimal testing while significantly alternating SYSTEM level responses with their bolt on products. Aftermarket products are...