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Author Topic:   spring and shock tech.
jpm
Dirt Roller

Total posts: 9
posted November 11, 2005 09:28 PM  
I just want spring rates and detailed shock specs from a points championship winning metric car. I've run a couple of seasons and have a 5th and 4th place points finishes. To go further I need the goods. Im lookin for rebound/comp & extended and compressed lengths for all 4 shocks & spring rates. Wouldn't mind having this info for jacked and non jacked cars (if they're different), probably just w/jacks is all I need thogh. I'm gonna run about a 5" ride hight on mod tires & 52%rear and cross weights (advise on this also welcome). I would really apriciate someone saveing me years of trial and error here.

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jpm
Dirt Roller

Total posts: 9
posted November 12, 2005 11:28 AM  
COMMON IT'S ALMOST X-MAS

racing8r
Dirt Roller

Total posts: 6
posted December 09, 2005 09:45 AM  
lf 1000 lb spring rf1250 lb spring 300 lb spring on both rears this worked great for me

juni
Dirt Maniac

Total posts: 197
posted December 09, 2005 02:12 PM  
1100rf 1000lf 300rr 350lr 1/4 mile dirt med banking afco stock mount shocks split valve rf ,lr and heavy rr ,med lf.These are what we used in the past and worked well when we ran a bunch of rear percentage. You won't want as much rear spring if you don't run a bunch of weight in the back.

Steve Dupree
Dirt Freak

Total posts: 386
posted December 09, 2005 04:58 PM  
Well might help here but you have no info on who you are and you are asking alot if you race at our track.There is hardly anything passed on here if you race at the same track but if not thats fine!!!!!!! I would help anyone on that, even at my own track but it would depend on who it was and how they acted and drove. I personally dont like looking at a profile that has no info on where you are from!!!!!!!!!!! Are you ashamed or what of where you are from.

I will tell you this you are running to much rear spring and that might help you more than anything.

racer17j
Dirt Forum Champ
Total posts: 5491
posted December 09, 2005 08:36 PM  
My profile says im form Nebraska. I race mostly at Thayer Co. Speedway in Deshler NE. I race 3/8 mi. tracks with around 12 deg. of banking. My goal is to race clean but in the heat of the momment i have done questionable things. I'm gonna continue to work on that. I've only run 2 full seasons and have some maturing to do. I will say I've been the screwie more than the screwer. Thanks for the spring info. Really, what im fishin for here is some detailed shock tech. Currently my shocks are in factory position. I have rear jacks but no fronts. rules allow jacks but no ajustment of them at the track. I already run bilsteins but I don't know the rebound and compresion rate on them cause I gottem off a used car. Same deal on the springs. I'm gonna get new springs and shocks so i know what i got. As far as handling goes im just lookin for a combo that will allow the car to stick in the corners at the fastest possible speed just like everyone else.

jpm
Dirt Roller

Total posts: 9
posted December 10, 2005 06:05 PM  
Oh. I was under the impression 5in. was the correct ride hight for a metric chassis on mod (not dot) tires. More imput on that welcome and thanks again.

racer17j
Dirt Forum Champ
Total posts: 5491
posted December 10, 2005 07:51 PM  
Don't go buying new springs until you know what your old ones are. You could be buying the same thing you have and wasting money. Find someone that can rate your springs. If you can't find anyone, let me know. I'll tell you how to check your springs with an electronic scale and a press. Once you know what your current springs are you can choose new ones that will improve your setup to match your driving style.

I helped on a multiple championship winning street stock, metric chassis, on a 3/8 dirt medium banked track. That car ran a 1600 RF, 800 LF, 200-250 LR, and 250-300 RR. Shocks were Pro's and in stock location everywhere but the RF. Many people will say that RF spring is way too stiff for a metric chassis. But, he won many races and two championships with it. My current car is very close to the same setup and handles like a dream, for me.

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