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bluemod
08-28-2011, 06:57 PM
I bought i lighting chassie its 04. running 9in rear 4 bar car.Im running a 602 create motor with birt trans. Having issues getting car to roll. a tacky 1/2 mile high bank track. Only slick when super nationals are there.

LF-weight-614
spring 700
shock 3535 bil

LR-weight678
spring-225
shock-1295 afco behind

RF-weight 513
spring-800
shock-4545 bil

RR weight 638
spring 175
shock 1294afco infront

Rear 51.1%
left 53.8
cross 48.8
bite-40
gear-500
602 create motor with birt trans

top bars 16in
bottom bars 14

where should the pull bar be located on the frame and should i run the 90/10 shock on the top. Hope someone can help thanks in advance

dirttrackrocker
08-28-2011, 09:00 PM
Your WAY OFF on rear %. Needs to be up around 58%. Add weight and put it high in the car.

junebug
08-28-2011, 09:17 PM
what clip is ur car....i think the front springs seem a little stiff, even on my metric clip car i was a little softer then that

dirttrackrocker
08-28-2011, 09:37 PM
My metric I run a 1050 in the RF. Everyone tells me I'm nuts, but, if I don't it bottoms out and shoves the nose hard. I read a thread on the dirt forum and the guy that builds lightenings says he tells his customers to not go under 1100. Mines not a lightening, but, I took his advice and it works for me.

washeduptoo
08-28-2011, 10:09 PM
Have you tried calling Mr. Adams at Lightning chassis, he is Heavy Duty on this forum.

http://www.lightningchassis.com/

Good luck.

JustAddDirt
08-29-2011, 11:50 AM
I bought i lighting chassie its 04. running 9in rear 4 bar car.Im running a 602 create motor with birt trans. Having issues getting car to roll. a tacky 1/2 mile high bank track. Only slick when super nationals are there.

LF-weight-614
spring 700
shock 3535 bil

LR-weight678
spring-225
shock-1295 afco behind

RF-weight 513
spring-800
shock-4545 bil

RR weight 638
spring 175
shock 1294afco infront

Rear 51.1%
left 53.8
cross 48.8
bite-40
gear-500
602 create motor with birt trans

top bars 16in
bottom bars 14

where should the pull bar be located on the frame and should i run the 90/10 shock on the top. Hope someone can help thanks in advance



1. raise rear ride heights 1" over lightning set up sheet.
2. lower left side weight a tick (that year car should have right side battery mount)
3. try a 750 LF, and a 700 in RF, and adjust ride heights accordingly.(for Nova A-arm cars)

What is driver weight?
Do you have long, or short pullbar?
How much LR drop do you have?
Is there weight in the car, and how high is it in the car?

Metric or Nova front a-arms?

bluemod
08-29-2011, 04:07 PM
driver is 219
i have to long pull bar mount is beside the drive shaft loop
i have like 2 1/2 drop on lr
there is no weight in the car
not for sure on the clip is there a way i can tell

washeduptoo
08-29-2011, 04:58 PM
If its a metric it should have indented frame rails.

bluemod
08-29-2011, 05:04 PM
yes it is a metric clip

WarsawSuspTec
08-29-2011, 06:26 PM
51% rear lol,make sure your cord`s are in the right scale pad`s,with a driver that is 219,something wrong there

bluemod
08-29-2011, 06:56 PM
they are in the right places

junebug
08-29-2011, 07:22 PM
if car doesnt roll good the best two options are probably either dropping spring rates or lowering roll centers...it really is all dependant on where roll centers are at where u should be on spring rates......if high roll centers then u need soft springs if low roll centers u need a softer spring to get the same amount of roll

mudeater18
08-29-2011, 07:52 PM
driver is 219
i have to long pull bar mount is beside the drive shaft loop
i have like 2 1/2 drop on lr
there is no weight in the car
not for sure on the clip is there a way i can tell

What is stopping the LR drop at 2.5". That's not nearly enough. Is that measured at the tire or at the birdcage ? You should have about 4" or 5" of drop (some people like even more)

I checked the math on your rear percentage. With the total weight you listed as 2443lbs. and your rear wheels weighing 1316 lbs. your rear percentage would be 53.8%.

Also need to know which lower a-arms you have. If they are Nova type (either tubular or banana shaped) you're probably close. If they are stock metric (flat on the bottom) then you are about 300lbs light on both fronts.

Also are you on a straight panhard bar or a J bar ? Where is it located at the pinion (even with, 1" above, 2" above ? etc) and how much higher is it where it mounts to the frame ? (measure from ground to bolt on each)

bluemod
08-29-2011, 08:10 PM
im on a jbar and its to the right side of the pinion. from the ground pinion side is 7in and frame side is 13 1/2 in. Pinion bolt is almost level with pinion bout a quarter below

HEAVY DUTY
08-29-2011, 09:15 PM
You need to check the LR drop and see what is stopping it.It might not have the right length of shock.( it should be a 9" stroke shock) Also check your scales, an 04 car is a long wheelbase car and they have 51 percent rear with the fuel cell empty.Make sure that there isnt any lead weight in front of the driveshaft loop.These guys have covered everything pretty much.700 is the least Rf spring I would run and a 175 is as soft as I would go on the RR.

bluemod
08-30-2011, 05:21 PM
ive took everything loose and i still have no drop and it is a 9in shock what to do

junebug
08-30-2011, 05:40 PM
is the rearend hitting the underrslung.....if the shock and spring is loose on lr and its still not down to the underslung then that means that u have a bind in the birdcage somewhere

junebug
08-30-2011, 05:42 PM
do these cars even have underslung bars? if not then the lr should fall completely outta the car with the spring and shock unhooked.....there is definately something binding up if thats not the case

dirttrackrocker
08-30-2011, 06:43 PM
I don't think lightnings have an under rail.. Theres definately a bind somewhere...

washeduptoo
08-30-2011, 07:36 PM
Do you run a dampner shock like a 9010 or something like that?

bluemod
08-30-2011, 07:51 PM
yes i do run a 90/10 damper is this bad or good that i do

texas racer
08-30-2011, 08:27 PM
Measure your rear end to frame rail at ride height. Put jack stands under frame and remove rear shocks and springs. Put jack under the middle of rear end and jack it up to your ride height. Move the rear end up and down on the right rear and left rear just like it travels as roll steer. If nothing is binding there check as you put your springs and shocks back on. Make sure to check your left rear shock drop. With a 9in shock you still may need a 1in or 2in extenion on your shock but make sure it does not bottom out when it drops off the bars. There is a sweet spot there. As for springs with a metric clip I would start out with 800LF 750 OR 700 RF 200 LR 175 RR. On the scales around 57.5 to 58 rear 52.5 53 left 49 49.5 cross on dry slick 75 or 80 lbs LR maybe even up to 120 or 130 LR. Good luck

bluemod
08-30-2011, 08:38 PM
thanks ill try this after work and see whats going on

bluemod
08-30-2011, 09:28 PM
one more thing are these %s with or with out driver and lr shock should it be mounted on inside top frame rail or out side top rail i have to diffrent mounts . Ones angled in toward center line. others outside up and down. and these are coilovers also if that matters

washeduptoo
08-31-2011, 05:08 AM
One time we mounted the 9010 in the wrong hole on tower bracket(too far to the back) and it wouldn't let rear end drop all the way as shock was extended out all the way. Good luck and I would still call Lighnting chassis or email to get basic set up.

dirttrackrocker
08-31-2011, 09:09 AM
Get rid of the 90/10. If you start getting wheel hop under braking put it back on.

bluemod
08-31-2011, 04:30 PM
is it better to just not use the 90/10 advantages or disadvantages

dirttrackrocker
08-31-2011, 04:42 PM
It's a feel thing, some guys like it, some don't. But I would ditch it and see if thats whats keeping you from getting enough LR drop.

bluemod
08-31-2011, 05:23 PM
thanks im going to try this and see what it does saterday night and ill get back to you all thanks

1Blacksheep
08-31-2011, 08:05 PM
Driveshaft yoke too far in ????? (wheelbase,axle square,rearsteer) Birdcage timing and index

bluemod
08-31-2011, 08:36 PM
found the problem my ride heights were way to high in the rear

bluemod
08-31-2011, 08:50 PM
ok now how much rake would you run and should my LR shock be on the outside rail almost straight up and down or should it be layed in toward the inside mount

dirttrackrocker
09-01-2011, 08:20 AM
I have seen it run both ways... About 1" -1-1/2" on rake

HEAVY DUTY
09-01-2011, 09:00 AM
The LR shock and spring should be about 6 to 8 degrees in at the top.Dont run the long pullbar without a damper shock. They will eventually break and tear a lot of stuff up. If you dont want a shock up there you can run a dummy shock to catch the rear end if the pullbar breaks.You should call and get a setup sheet.People on the internet mean well but some of them dont know what you have and will give you bad info. You cant listen to eveybody that has an opinion, some will help you and some will steer you wrong.I am the guy that built the car and can help you if you call.The only thing that I cant help you with is if the brackets, birdcages. etc. has been changed from original.
Don Adams 606 878=7223

JustAddDirt
09-02-2011, 08:15 AM
Best call you will ever make.

bluemod
09-03-2011, 07:21 PM
ok i got a bigger problem i swapped the front springs around and set all the ride heights to where they were spose to be. Well the bad was i had -275 pounds of bite on the scales and could not get it up over 0. So i put it all back to where it was. lookin for anything here

racer69
09-10-2011, 11:20 PM
These guys are right. Call or email lightning. Give them the number off left frame rail. They will email you the base. I did that very thing and my lightning rocked! And mine drops so far when I lower it from the lift it tries to push off to one side! lol!

1Blacksheep
09-11-2011, 08:28 AM
You need to call Mr. Adams as he has made the offer. Even if the car is a copy ,( if it was copied correct) I am sure he will still help ya out. Dons a pretty cool dude and has helped those that don't even have his car. Make the CALL.

bluemod
09-11-2011, 01:24 PM
I have to say that was a good call i made to mr.adams helped out found my problems that were wrong with the car. thanks everyone for your advise found out alot bout mods i didnt know so you guys can help me later on. but a big thanks to lighting chassis for the help went 12 to 5 this week

opracing45
09-09-2012, 12:42 AM
There are many mods to select for and each one has their own unique capabilities. Choose what your car fits the most.

ruskinoman
09-09-2012, 03:09 AM
Привет,Ничего не понял, что вы имели ввиду