Andystoy19
Active member
- Joined
- Apr 24, 2019
- Messages
- 714
- Reaction score
- 159
This is a single door machine sometimes referred to as a 3 up. Stock tires are 27x9x14 front and 29x11x14 rear, MAXXIS Bighorn 2.0 tires. Tires were inflated to 16.5 psi front and 21.5 psi rear and clearance at the front was 12 1/2" and rear was 13 1/2". Deflated the front tires to 10.5 psi and rear to 12 psi. and front clearance stayed the same and the rear dropped to 12 1/4". Stock springs were set at the softest setting front and back. Air pressure on the stock tires especially the rear tires has a big effect on the ride height or clearance of the machine. The dry weight of this machine is listed at 1844 lbs. with 47/53 front to rear without options.
Adjust spring setting front and back to the stiffest position, roughly 0.75" movement on the adjusting collar and I got an increase in clearance of 3/4" at the rear and the front so roughly a 1:1 increase in clearance, front at 13 1/4" and rear at 13". You can use this measurement to estimate your increase in lift if you decide to use the spring lift method which is a collar installed on top of your bottom adjusting collar. The increase in lift may not stay at 1:1 when you increase the size of your spacer because the springs are progressive (become stiffer when compressed) and you are decreasing the amount of travel that the shock assembly was built with by the amount of spacer you installed.
Battle Armour 2" chassis or bracket lift, the four brackets are the same so they install front or back, no problems at all with installing them. Clearance after the lift was installed increased by 1 1/2" at the front and 1 3/4" at the rear. I tried to contact Battle Armour about the discrepancy in advertised vs actual but no answer? The front brackets fit as designed with the inside tab resting on the top arm as expected. The rear bracket tends to rock side to side on the bottom bolt because the rear arm is open and the tab has nothing to rest on. I questioned this as well but no answer from BA? I will modifiy the rear brackets by adding a tab on top to restrict the rocking motion after a few rides. The brackets measure 1" center to center at the bolts. The bolts were torqued as per instruction to 45 ft. lbs.
30" Cryptid tire install, the front tires are 30x10x14 and the rear are 30x11x14 installed on the factory rims. No problems taking off the factory tires or installing the new ones, note the 11" is slightly shorter when installed than the 10" according to the tire spec. sheet . Factory front 9" tire 21 lbs. Cryptid 10" 43 lbs., factory rear 11" 28 lbs. Cryptid 11" 46 lbs. The increase in rotating mass from the tires alone is 80 lbs. The new tires are roughly twice as heavy as the originals. The 30" result in a decrease of gear ratio of roughly 11%. Decrease in HP available is 80/7 = 11.4 HP due to the higher rotating mass of the tires and a gear reduction of 11%. The CVT clutch will see this as a higher load and compensate by staying in a lower shift ratio but a clutch kit will be in order (perhaps similar to the XMR which has similar tires, I haven't researched this yet). Additionally I will be looking at an engine tune which should bring me up to 82 HP according to the programmer?
The final clearance with the tires inflated to 15 psi front and 18 psi rear is 15 1/4" rear and 16 1/4" front and the springs at the stiffest setting. The defender has a 1" higher lift in front and it looks aggressive. All these measurements are taken with the cab empty but all options mounted. I have not found any tire rubbing front or back at this point and no
Adjust spring setting front and back to the stiffest position, roughly 0.75" movement on the adjusting collar and I got an increase in clearance of 3/4" at the rear and the front so roughly a 1:1 increase in clearance, front at 13 1/4" and rear at 13". You can use this measurement to estimate your increase in lift if you decide to use the spring lift method which is a collar installed on top of your bottom adjusting collar. The increase in lift may not stay at 1:1 when you increase the size of your spacer because the springs are progressive (become stiffer when compressed) and you are decreasing the amount of travel that the shock assembly was built with by the amount of spacer you installed.
Battle Armour 2" chassis or bracket lift, the four brackets are the same so they install front or back, no problems at all with installing them. Clearance after the lift was installed increased by 1 1/2" at the front and 1 3/4" at the rear. I tried to contact Battle Armour about the discrepancy in advertised vs actual but no answer? The front brackets fit as designed with the inside tab resting on the top arm as expected. The rear bracket tends to rock side to side on the bottom bolt because the rear arm is open and the tab has nothing to rest on. I questioned this as well but no answer from BA? I will modifiy the rear brackets by adding a tab on top to restrict the rocking motion after a few rides. The brackets measure 1" center to center at the bolts. The bolts were torqued as per instruction to 45 ft. lbs.
30" Cryptid tire install, the front tires are 30x10x14 and the rear are 30x11x14 installed on the factory rims. No problems taking off the factory tires or installing the new ones, note the 11" is slightly shorter when installed than the 10" according to the tire spec. sheet . Factory front 9" tire 21 lbs. Cryptid 10" 43 lbs., factory rear 11" 28 lbs. Cryptid 11" 46 lbs. The increase in rotating mass from the tires alone is 80 lbs. The new tires are roughly twice as heavy as the originals. The 30" result in a decrease of gear ratio of roughly 11%. Decrease in HP available is 80/7 = 11.4 HP due to the higher rotating mass of the tires and a gear reduction of 11%. The CVT clutch will see this as a higher load and compensate by staying in a lower shift ratio but a clutch kit will be in order (perhaps similar to the XMR which has similar tires, I haven't researched this yet). Additionally I will be looking at an engine tune which should bring me up to 82 HP according to the programmer?
The final clearance with the tires inflated to 15 psi front and 18 psi rear is 15 1/4" rear and 16 1/4" front and the springs at the stiffest setting. The defender has a 1" higher lift in front and it looks aggressive. All these measurements are taken with the cab empty but all options mounted. I have not found any tire rubbing front or back at this point and no
Last edited by a moderator:
