coilover tech..

yellowjacket · 02-28-2012, 01:27 PM

looking for spring rate info....

anyone here run coilovers and have info to share?

is spring rate determined just by the sprung weight of ur rig or by intended usage as well?( stiffer for faster ect)?

why do i see the springs all the way at the top of some c/o's and on others is spun down 6-7 inches?

how close or far away to keep spring rates....250 over 300 ...vs 150 over 300?

thanx in advance

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Hope Springs Hauler · 02-28-2012, 02:26 PM

http://f-o-a.com/calculator.html

Better than I could explain.

yellowjacket · 02-28-2012, 08:10 PM

thanx....does this seem pretty accurate i guess?

im at 135 over 90 with main at 54... i hoped to be pretty light but these seem realllllly light...???

chassis at 500( just under)

guessing the rest....
sbc @ 400
tranny and atlas at 200
two tanks ..100
two fat guys....400
radiator /fan along w ten gallons ..130
two seats...60
exhaust, steering, two coolers and their fluids 150
half of suspension/ link weight...75

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yellowjacket · 02-28-2012, 08:14 PM

above with d5 being 45"
and d6 being 48"
calculated with 18" travel at 60% droop. shocks at 10°...

just seems light but if im at 2015 sprung maybe its cool....i dunno:confused:

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underpowered · 02-28-2012, 09:47 PM

is that tranny and t-case 200 each or together?

hopefully each, as i know the average auto tranny is close to 200 with a converter full of fluid, and i would put a t- case close to 100 lbs by itself, though i have never seen an atlas to know how much it would weigh.

and assuming you have an all iron SBC 400, you are about 200 lbs light on it as well.

just for reference, weights of different motors

http://www.team.net/sol/tech/engine.html

yellowjacket · 02-28-2012, 10:23 PM

yeah engine is all iron...i would not have thought it be 600 lbs though... thanx for the link. and i did allow extra for tranny cooler with fluid. any input is appreciated

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Hope Springs Hauler · 02-28-2012, 10:24 PM

chassis at 500( just under)

sbc (Dressed) @ 700
tranny and atlas at 350
two tanks ..120
two fat guys....500
radiator /fan along w ten gallons ..130
two seats...60
exhaust, steering, two coolers and their fluids 150
half of suspension/ link weight...75

Add it up and put in a bit of extra for straps, radio, cheezits....etc and call it 2700lb sprung weight

Plug it in and get 123/185. Problem is that you will need to pick a compromise of rates based on what is available. Based on this, I would think about 125/175. I am a novice though. I'm better at picking out regular coil spring rates.

yellowjacket · 02-28-2012, 10:33 PM

good:) im glad i itemized my componets for you guys to see. now i can see that i was pretty far off on my weights.

that must be why i can only pick up a sbc for 30 seconds...i just thought i was out of shape;)

seriously though ...those spring numbers do sound a lil closer to average

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underpowered · 02-28-2012, 10:39 PM

you gonna run a winch that would need figured in to your weights as well?

what about front/rear distribution that would need accounted for as well.

yellowjacket · 02-29-2012, 07:20 AM

front winch is on axle. weight of rear winch has been accounted for. hoping for 50/50.... with weight changes you pointed out i better refigurr though.

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Nuts · 02-29-2012, 08:57 AM

Your seats are 30 pounds each!?!? mine are about 10 maybe

yellowjacket · 02-29-2012, 11:26 AM

i think ill be buying some scales this weekend

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Drivermod · 02-29-2012, 12:53 PM

Quote:

Originally Posted by yellowjacket

i think ill be buying some scales this weekend

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Todds' got corner scales if you want to get accurate #'s.

yellowjacket · 02-29-2012, 01:37 PM

hes a hard guy to get a hold of.... like trying to find dental floss at a willie nelson concert

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gothodgie · 02-29-2012, 01:43 PM

Quote:

Originally Posted by yellowjacket

like trying to find dental floss at a willie nelson concert

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lmao...

Drivermod · 02-29-2012, 02:51 PM

Quote:

Originally Posted by yellowjacket

hes a hard guy to get a hold of.... like trying to find dental floss at a willie nelson concert

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pm sent

humpy · 02-29-2012, 03:31 PM

I have been told that with accurate corner weights they can get u pretty close to what u need

mckeddie · 02-29-2012, 10:29 PM

Quote:

Originally Posted by Drivermod

Todds' got corner scales if you want to get accurate #'s.

Not right now, I think we have them.

02-28-2012, 01:27 PM	#1
yellowjacket barely breathing Join Date: Mar 2008 Location: alexandria, ky Posts: 889	coilover tech.. looking for spring rate info.... anyone here run coilovers and have info to share? is spring rate determined just by the sprung weight of ur rig or by intended usage as well?( stiffer for faster ect)? why do i see the springs all the way at the top of some c/o's and on others is spun down 6-7 inches? how close or far away to keep spring rates....250 over 300 ...vs 150 over 300? thanx in advance Sent from my LS670 using Tapatalk __________________ my next rig will be on the trail before zuk 2.0 will

02-28-2012, 02:26 PM	#2
Hope Springs Hauler Join Date: Jul 2008 Location: Hamilton, OH Posts: 431 Images: 16	http://f-o-a.com/calculator.html Better than I could explain. __________________ 1988 Suzuki Samurai on propane FJ 40 axles (4.10) 5.14 tcase 36" TSL SX

02-28-2012, 08:10 PM	#3
yellowjacket barely breathing Join Date: Mar 2008 Location: alexandria, ky Posts: 889	thanx....does this seem pretty accurate i guess? im at 135 over 90 with main at 54... i hoped to be pretty light but these seem realllllly light...??? chassis at 500( just under) guessing the rest.... sbc @ 400 tranny and atlas at 200 two tanks ..100 two fat guys....400 radiator /fan along w ten gallons ..130 two seats...60 exhaust, steering, two coolers and their fluids 150 half of suspension/ link weight...75 Sent from my LS670 using Tapatalk __________________ my next rig will be on the trail before zuk 2.0 will

02-28-2012, 08:14 PM	#4
yellowjacket barely breathing Join Date: Mar 2008 Location: alexandria, ky Posts: 889	above with d5 being 45" and d6 being 48" calculated with 18" travel at 60% droop. shocks at 10°... just seems light but if im at 2015 sprung maybe its cool....i dunno:confused: Sent from my LS670 using Tapatalk __________________ my next rig will be on the trail before zuk 2.0 will

02-28-2012, 09:47 PM	#5
underpowered They call me......Scuba Join Date: Sep 2010 Location: Burlington, KY Posts: 292	is that tranny and t-case 200 each or together? hopefully each, as i know the average auto tranny is close to 200 with a converter full of fluid, and i would put a t- case close to 100 lbs by itself, though i have never seen an atlas to know how much it would weigh. and assuming you have an all iron SBC 400, you are about 200 lbs light on it as well. just for reference, weights of different motors http://www.team.net/sol/tech/engine.html __________________ beat up rusted out k5

02-28-2012, 10:23 PM	#6
yellowjacket barely breathing Join Date: Mar 2008 Location: alexandria, ky Posts: 889	yeah engine is all iron...i would not have thought it be 600 lbs though... thanx for the link. and i did allow extra for tranny cooler with fluid. any input is appreciated Sent from my LS670 using Tapatalk __________________ my next rig will be on the trail before zuk 2.0 will

02-28-2012, 10:24 PM	#7
Hope Springs Hauler Join Date: Jul 2008 Location: Hamilton, OH Posts: 431 Images: 16	chassis at 500( just under) sbc (Dressed) @ 700 tranny and atlas at 350 two tanks ..120 two fat guys....500 radiator /fan along w ten gallons ..130 two seats...60 exhaust, steering, two coolers and their fluids 150 half of suspension/ link weight...75 Add it up and put in a bit of extra for straps, radio, cheezits....etc and call it 2700lb sprung weight Plug it in and get 123/185. Problem is that you will need to pick a compromise of rates based on what is available. Based on this, I would think about 125/175. I am a novice though. I'm better at picking out regular coil spring rates. __________________ 1988 Suzuki Samurai on propane FJ 40 axles (4.10) 5.14 tcase 36" TSL SX

02-28-2012, 10:33 PM	#8
yellowjacket barely breathing Join Date: Mar 2008 Location: alexandria, ky Posts: 889	good:) im glad i itemized my componets for you guys to see. now i can see that i was pretty far off on my weights. that must be why i can only pick up a sbc for 30 seconds...i just thought i was out of shape;) seriously though ...those spring numbers do sound a lil closer to average Sent from my LS670 using Tapatalk __________________ my next rig will be on the trail before zuk 2.0 will

02-28-2012, 10:39 PM	#9
underpowered They call me......Scuba Join Date: Sep 2010 Location: Burlington, KY Posts: 292	you gonna run a winch that would need figured in to your weights as well? what about front/rear distribution that would need accounted for as well. __________________ beat up rusted out k5

02-29-2012, 07:20 AM	#10
yellowjacket barely breathing Join Date: Mar 2008 Location: alexandria, ky Posts: 889	front winch is on axle. weight of rear winch has been accounted for. hoping for 50/50.... with weight changes you pointed out i better refigurr though. Sent from my LS670 using Tapatalk __________________ my next rig will be on the trail before zuk 2.0 will

02-29-2012, 08:57 AM	#11
Nuts Join Date: Feb 2008 Location: middletown,oh Posts: 508	Your seats are 30 pounds each!?!? mine are about 10 maybe

02-29-2012, 11:26 AM	#12
yellowjacket barely breathing Join Date: Mar 2008 Location: alexandria, ky Posts: 889	i think ill be buying some scales this weekend Sent from my LS670 using Tapatalk __________________ my next rig will be on the trail before zuk 2.0 will

02-29-2012, 01:37 PM	#14
yellowjacket barely breathing Join Date: Mar 2008 Location: alexandria, ky Posts: 889	hes a hard guy to get a hold of.... like trying to find dental floss at a willie nelson concert Sent from my LS670 using Tapatalk __________________ my next rig will be on the trail before zuk 2.0 will

02-29-2012, 03:31 PM	#17
humpy Join Date: Sep 2008 Posts: 573	I have been told that with accurate corner weights they can get u pretty close to what u need __________________ S10 with a few air shocks..