4 link help - Pirate4x4.Com : 4x4 and Off-Road Forum

lankster29 · 01-06-2010, 12:32 AM

Ok I cant really figure out how to get the 4 link calculator diagram on here but I can post the #'s. This is my first 4 link but I think the numbers are ok. But I would like some advice. what do you guys think.

Wheelbase 95.0 in
Tire Diameter 37.00 in
Tire Rolling Radius 19.75 in
Vehicle CG Height 40.00 in
Vehicle Mass 3,500 lb
Front Unsprung Mass 650 lb
Rear Unsprung Mass 500 lb

Upper Links x y z
Frame End 33.00 12.00 27.50 in
Axle End 0.00 3.00 25.00 in
Lower Links x y z
Frame End 40.00 3.00 23.00 in
Axle End 3.00 21.00 16.00 in

Static Anti-Squat 82 % Travel Anti-Squat: 82%
Roll Center Height 24 in Travel Roll Center: 24.17
Roll Axis Angle 0 degrees (Roll Understeer) Travel Roll Axis: 0.00°
Instant Center X-Axis 84 in Pinion Change: 0.00°
Instant Center Z-Axis 31 in Travel Amount: 0.00
Travel Increment: 1.00

I think i figured out how to post the diagrams.

D Boz · 01-06-2010, 11:09 AM

Quote:

Originally Posted by lankster29

Ok I cant really figure out how to get the 4 link calculator diagram on here but I can post the #'s. This is my first 4 link but I think the numbers are ok. But I would like some advice. what do you guys think.

Wheelbase 95.0 in
Tire Diameter 37.00 in
Tire Rolling Radius 19.75 in
Vehicle CG Height 40.00 in
Vehicle Mass 3,500 lb
Front Unsprung Mass 650 lb
Rear Unsprung Mass 500 lb

I assume your tires are 37"s? Measure and see what they really are. Rolling radius is height from the ground to center of the hub, if you want to calculate at trail pressure, this is where to compensate. I am guessing 19.75" is a typo. I would guess those numbers to be about 36.25" and 17" instead

To get the calculator image, take a screen shot (alt + print screen on PC's if I remember) and post the image. That will make it a lot easier to see whats going on.

my name is mud · 01-06-2010, 05:15 PM

Dude, well done! now freakin get it done!!!!

Greg72 · 01-13-2010, 06:50 AM

Where did you get that version of the 4Link Calculator?

It looks a little bit newer than the one the Triaged has links to in his .sig

-G

Mykul · 04-05-2010, 08:46 AM

From what I have been reading those are some good numbers!! Nice work

01-06-2010, 12:32 AM	#1 (permalink)
lankster29 Registered User Join Date: Jun 2007 Member # 93277 Posts: 115	4 link help Ok I cant really figure out how to get the 4 link calculator diagram on here but I can post the #'s. This is my first 4 link but I think the numbers are ok. But I would like some advice. what do you guys think. Wheelbase 95.0 in Tire Diameter 37.00 in Tire Rolling Radius 19.75 in Vehicle CG Height 40.00 in Vehicle Mass 3,500 lb Front Unsprung Mass 650 lb Rear Unsprung Mass 500 lb Upper Links x y z Frame End 33.00 12.00 27.50 in Axle End 0.00 3.00 25.00 in Lower Links x y z Frame End 40.00 3.00 23.00 in Axle End 3.00 21.00 16.00 in Static Anti-Squat 82 % Travel Anti-Squat: 82% Roll Center Height 24 in Travel Roll Center: 24.17 Roll Axis Angle 0 degrees (Roll Understeer) Travel Roll Axis: 0.00° Instant Center X-Axis 84 in Pinion Change: 0.00° Instant Center Z-Axis 31 in Travel Amount: 0.00 Travel Increment: 1.00 I think i figured out how to post the diagrams. Attached Images Last edited by lankster29; 01-06-2010 at 12:40 PM.

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01-06-2010, 05:15 PM	#3 (permalink)
my name is mud Registered User Join Date: Jan 2008 Member # 106272 Location: Temecula California Posts: 305	Dude, well done! now freakin get it done!!!!

01-13-2010, 06:50 AM	#4 (permalink)
Greg72 I like .XLS Join Date: Jan 2002 Member # 9393 Location: The Granite State Posts: 298	Where did you get that version of the 4Link Calculator? It looks a little bit newer than the one the Triaged has links to in his .sig -G

04-05-2010, 08:46 AM	#5 (permalink)
Mykul Registered User Join Date: Mar 2010 Member # 157054 Location: San Rafael Posts: 36	From what I have been reading those are some good numbers!! Nice work