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Author Topic:   Which springs?
bryan kaster
Dirt Roller

Total posts: 13
posted January 16, 2003 11:12 PM
I was wondering which size and weight of springs i would use in my car. My car is a '73 pontiac grand am iv got a sbc a 32 gallon fuel cell and a passenger seat. I know the passenger seat is like an extra 150 pounds where you dont want it. But the big fuel cell will help with balast since i cant add any other weights. I just want some advice on spring size and rates. Any info would be greatly appreciated.

racer17j
Dirt Forum Champ
Total posts: 1565
posted January 17, 2003 09:55 AM UIN: 54865418
how much does the car weigh is it a two man car if not whats the reason behind the seat and the cell unless it's there for a reason like a 200 lap enduro or something you might want to change some stuff i have a 22 and guys think that is way to much but i'm like you i use it for tail %

bryan kaster
Dirt Roller

Total posts: 13
posted January 17, 2003 12:17 PM
Well its not an enduro race, its just plain circle track racing. There is no real reson for the passenger seat besides to give someone a ride. But the big fuel cell is to legally add or take away ballast. since we cant add any weight. im not exactly sure how much the car weighs its probably close to 3000 pounds. I was told to put a 12" 1400 pound sring on the front right and about as tall and heavy as you can get on the rears. What do you think about this?


racer17j
Dirt Forum Champ
Total posts: 1565
posted January 18, 2003 09:19 AM UIN: 54865418
with an extra seat and 32 gallons of fuel that probably weights up around 3500+. i'm still not sure about the seat do you have people in it while your racing or packing the track myself i give ride all the time while packing the track and i have a bucket seat 5 gallon that is are you gonna be running stock junkyard springs or do you plan on running racing springs. back when we used to run early 70's monte's we ran 1200,1000,275,250

bryan kaster
Dirt Roller

Total posts: 13
posted January 19, 2003 12:29 AM
Well Yes during the race we always have someone riding with us. Most of the time it is good for sponsorships and that sort of thing. But we also carry a 6 gallon water jug, directly behind the driver for our radiator spray bar. we are going to run racing springs. right now we are planning to run a 1400 on the front right with a spacer because that is where we always bottom out. im not sure what to run on the other three corners. i think we might go with a 1000 300 and a 275. If you have any other suggestion i would greatly appreciate it.


Eljojo
Dirt Freak

Total posts: 273
posted January 19, 2003 07:15 AM
Bryan, The more I read; the more I'd like to see you race! Let me be sure I got this right...you've got an extra stock seat in the front so that you can take your sponsors for a ride DURING THE ACTUAL RACE? And what's this "spray bar"? Is it some kind of pressurized water battle used to spray cool water on a hot radiator? Does it make steam? Mud? Where do you race?

bryan kaster
Dirt Roller

Total posts: 13
posted January 19, 2003 11:57 AM
Ok We have a kirky racing passenger seat. and yes it helps getting sponsors by taking them for a ride. And yes during an actual race. No it is just a little 6 gallon bottle filled with water and a little 12 volt pump to spray on the radiator when we start getting hot. it works real well we just got clear flex hose and 5 drip line nozzles that sray a fan pattern onto the radiator. it usually only takes about 2 laps to cool us down 50 or 60 degrees. I live and race in Fallon Nevada. You got it now?

bryan kaster
Dirt Roller

Total posts: 13
posted January 19, 2003 12:02 PM
Oh yeah i have one other thing to add to that. I built a battery box out of 1/4" plate that weighs about 50 pounds. and our mud flap is welded to the frame with a piece of 6' long 2" x 2" anlge that is also 1/4" thick. Wow now that i put it like that it seems like i have added a lot of wight. but it seems to work preatty good.

Eljojo
Dirt Freak

Total posts: 273
posted January 19, 2003 12:23 PM
Hey I like that cool down idea! Have one of your riders ever taken along the video camcorder? I'll betcha that would be some wild footage!

WillieWinn
Dirt Roller

Total posts: 19
posted January 19, 2003 07:35 PM
Hey, since you are obviously not worried about weight, when you hook up to the burger trailer to pull during the race in case you get hungry, use a 2 and 5/16 ball!! Sorry, just having a little fun.

bryan kaster
Dirt Roller

Total posts: 13
posted January 19, 2003 07:45 PM
Hey that is a good idea. But some of those races are real long and it gets real dusty out there sometimes i think we at least need some cup holders or something. lol but anyway we have tried to hard mount a camcorder in the car before but watching it you eigther cant see whats going on or it makes you get motion sick. but i havent tried to have anyone hold one yet maybe i will. or get some of those little spy cameras and hard mount it that way i dont think it would jiggle around like the other camera did.


URDUSTED
Dirt Roller

Total posts: 20
posted January 19, 2003 10:18 PM
cant wait to see you come through tech there mr caster. Rule number 1, if your gonna push the rules, dont air them out on a public board. DOH

bryan kaster
Dirt Roller

Total posts: 13
posted January 19, 2003 11:21 PM
Push what rules? Is this who i think it is? Are you someone that i would know here?


URDUSTED
Dirt Roller

Total posts: 20
posted January 20, 2003 06:56 AM
Yeah, its who you think it is. Take a look at the rules, they are on the website. www.rattlesnakeraceway.com Specifically the springs, and and the size of the water jug. And that hi-tech mud flap attach bracket might be considered excess ballast. Just trying to help you out buddy. the rules where clarified a little more this year because some people were stretching them pretty good.

[This message has been edited by URDUSTED (edited January 20, 2003).]

racer17j
Dirt Forum Champ
Total posts: 1565
posted January 20, 2003 11:13 AM UIN: 54865418
what class is this the voodoo stocks i realize it's hot there but you should be able to take care of youre over heating problem without putting another 40# in the car not to mention putting water on a slick track right in front of you there are nites here i have pulkled out for my feature and it's been 90+ with 90% humidity and it runs just fine temp wise work on your timing,jetting,and a good shroud will bring the temp down if you need to bring it down 50 deg then you have bigger isues there and why would you want mud flaps just something else to add weight and run over when they fall off if you don't have a min weight put that sucker on a diet it might run a little cooler if it was 1000# light too and will handle much better

bryan kaster
Dirt Roller

Total posts: 13
posted January 20, 2003 11:39 PM
Well thanks Warren I looked at the rules for this year, And I havent set anything in stone i was just getting ideas. and opinions. I have Passed tech every time last year for everything that i have been asking about and i dont plan to change any of it. But thanks for lookin out for me. And for racer17 I dont know why we were over heating we have done everything, My timing is what the book calls for are jetting is good, we have a stock fan shroud and a four core radiator. I dont think we are going to have a problem anymore we just changed our engine to a sbc from a pontiac 350. So that should help. and the water was spraying directly onto the radiator. Also our rules require that we have mud flaps.


Deek
Dirt Full Roller

Total posts: 45
posted January 21, 2003 01:34 PM
Bryan, consider for a moment that you're using a heavy car in the first place compared to your competition...The front runners were driving metrics and Novas. The passenger seat was a fun idea, but if you want to get competitive, ditch it. Take another good look at that car: There's plenty of excess weight you can still get off.

If you've got everything right with the cooling system, you do not need a spray bar. It's just a crutch. A lot of your competitors use a spray bar system just for an excuse to add rear weight percentage. Just because you're changing engines doesn't mean you've got the overheating problem fixed. Check everything...Fan, shroud, big radiator in good shape, high pressure cap, timing, jetting...etc. There's endless posts on these boards about what to check. Read them.

Keep at it and you'll be taking it to the front in no time!


Big Dawg
Dirt Full Roller

Total posts: 36
posted February 02, 2003 01:19 PM
All I can say is WOW!Are you building a race car or something else?Racer17j has hit your spring rates dead on.I'f your rules permit get some racing shocks.I'f you plan on running up front ditch the passenger seat.With it you are taking away rear%.Build the car as light as you can,and fill up the fuel cell for rear%

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