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Author Topic:   Best front spring size for metric chassis
wrenchjockey
Member
posted February 21, 2003 06:17 PM
I am putting front springs in my 82 Monte Carlo Streeter and the original (broken springs) I'm removing are about 5" diameter and 15" long. The springs I bought are 5" X 9" long, 1000 & 1250lb rate for a 3/8 mile, high-bank track. Do I need to get different springs or do I use spacers? And if I get spacers, how tall of a spacer do I use? Am I shooting for the original 15" length or is there a "magic ride height" I should aim for? Spring rules are copied below from sanctioning body's website.

D. Springs must be in the stock location and position; stock spring hangers only. Any 4-1/2-inch minimum diameter spring allowed front and rear. No adjustable shims allowed. No weight jacks allowed. No added traction devices allowed. Leaf springs must be stock or replacement; must use original mounts; no adjustable shackles allowed. Lowering blocks allowed on leaf spring cars only.

STREET16
Member
posted February 21, 2003 06:57 PM
You need new springs. The 82 monte uses 5 1/2 inch diameter springs. And the length you need is 11 inches.

[This message has been edited by STREET16 (edited February 21, 2003).]

wrenchjockey
Member
posted February 21, 2003 07:25 PM
I guess they are 5 1/2, I was just rough measuring. What's the best size for the rear spring?


rfb320
Member
posted February 21, 2003 10:23 PM
the 9 inch springs are what you want,you will have to put spacers in there that are cut to the right height. go with the 5 x 11 in the back. this setup seams low but i have talked to a couple of chassis builders and people on this forum and that is what they suggested.


rickb33
Member
posted February 21, 2003 11:32 PM
I agree with the previous post. I had 11 inch rear springs on my car and hated it. It was a pain when you needed to jack up the car. My builder put 13 inch springs on the rear.


wrenchjockey
Member
posted February 23, 2003 11:38 AM
I talked to another guy today who races streeters at my track and he told me he uses an adjustable spacer in the front, but he welded it solid when he got the ride height he wanted (he wouldn't tell me what height) and that since it was welded solid, it remains legal.


iowa_dirt_track_girl
Member
posted March 01, 2003 04:05 PM
First of all you have the wrong front springs for that car you need 1000 rf and 900 lf. 13 inch springs will help you in the rear it will give you more forward bite you should start off with 200 in lr and 175 rr


Slam_Shifter
Member
posted March 01, 2003 09:56 PM
I got a kick out of the "silicone welding" technique...but I think I'd rather weld it for real when I get it scaled.

dirt track girl...all of your spring rates are too soft for my track. Most of the guys who run up front use either the 1000/1250 or even 1100/1100. And these are track champions, not slouches. I was asking about spring size, not rate. Thanks anyway.

And speaking of rear springs...has anyone ever heard of using water pump/power steering pulleys as spacers in the rear? Or any other "creative" spacers???

racer17j
Member
posted March 02, 2003 11:18 AM
if you have pig tail springs i use one of the triangle deals that you use to hold your exaust pipe to the manifold gives you about an inches of spacing and fits perfect in the pig tail


iowa_dirt_track_girl
Member
posted March 02, 2003 11:54 AM
dear wrench jocky
i think i know what i am talking about my husband is the winnest imca hobby stock driver in history 89 feature wins in7 years thank you! and thats why we are so fast is because we try to help you guys out and you dont listen i guess your track never drys out


wrenchjockey
Member
posted March 02, 2003 12:32 PM
No need to get feisty, dirt track girl. Just trying to keep it on topic. What works at your track for your husband may not work at my track. So don't take it personally.


sideways
Member
posted March 02, 2003 08:25 PM
Well it just makes me mad we try to help out people and they never take our advice you know its not like we are going to give wrong advice i know what car wrench jockey is running we run them years ago i try to give him advice and help him go fast


odb93
Member
posted March 03, 2003 12:14 PM
All I was trying to say is that it is the SIZE (as in LENGTH and DIAMETER) that I was curious about, not the RATE. I have already decided what RATE I want, based on input from several TOP drivers and TRACK CHAMPIONS at MY TRACK. It's not like I don't appreciate the OPINION you have about what RATE I should run. Any suggestion about what RATE I need is off the topic of my original question, and leads to EVERYONE's OPINION of what RATE (not SIZE) I should run. Don't be mad when people don't take your advice here, or you'll spend a lot of time being mad. Don't quit offering your opinion either, though. It's the open exchange of opinions that makes this forum so great. (Kudos to Jammin!!) But it would quickly cease to exist if everyone got mad when no one took their advice. I understand (and appreciate) that you were trying to help, and for the record, my claws are in the retracted position. And I'm not mad about anyone's opinion. I'm not mad about anything. I'll leave that up to Jimmie Johnson. Now there's a reason to be mad. Oops, that's off topic too. My bad.



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