i drive a 94 teg all motor and am heavily into autox. just wunderin if anyone has tried different sping rates to tune for good rotation with out sacrificing lateral grip, i currentley am running 350 front and 400 rear with tokiko blues and yoko 450 rubber. car has excelent turn-in from 20mph to 40, and a slight push above that. after apexing it tends to get quite free not real dramatic but its definatly not quite connected. i know different tires and better struts would help but any clue on proper sping rates is what i'm asking for.
ps, car weighs 2475, dont know front to rear split or individual corner weights i just weighd on a whole scale
also i dont give a hoot for ride quality as long as it give those g's and that wonerful off throtle rotation

 

get rid of those crappy tokicos and those crappy tires.

all problems = /solved

 

can you read? did my post not say "i know different tires and better struts would help but any clue on proper sping rates is what i'm asking for. " not to be a dick but thats all im looking for if its not too much to ask.......

 

Getting your car to rotate will not really be that difficult starting from where you are. Your spring rates are on the conservative (but street livable) side and as mentioned your shocks are neither adjustable nor really particularly perforamcne units. I don't know the tires but it sould like they could be more aggressive too. Also I did not see a mention of any additional rear sway bar which can help you in mid corner and later and help add rotation with your conservative springing (which I do normally suggest if this is a street and weekend usage car). An adjustable shock will allow you a tuning device to help get the right amount of rotation and allow you to tune for not too little or too much. Plus it will let you tune for street manners as well.

 

Yes....your spring rates aren't bad they are a little soft, but if this is your daily driver and you don't want to go stiffer, they'll work. You might want try a stiffer rear sway. I am currently running 9 kg/mm springs both front and back in my DC5 and I felt it roatetd ok....i need just a little more. I bought a type-r rear sway and it worked out perfectly.

Rich

 

to figure out the best spring rate for ur car the best thing to dois corner weight the car. if u cant do that just test some cars with diff spring rates and see how u like em. the more u stiffen up the rear the less understeer u get but u also have to consider weight transfer.

 

ever takin any driver courses? maybe its your style of driving.

 

Not sure what class you are in but here is the order I would modify the car:

1) Tires - If STS then Azeins ST615
If Street Prepared then get 8x13 lightweight wheels and then Kumho V710 (225 all around) or Hoosier A3S05s (225 all around)
2) Shocks - no brainer here, Koni SPSS3 valved shocks (Lee can tell you the model number
3) Bigger rear bar and bracing - 24mm ITR bar and one of the bracing kits (Beaks is the only one I can remember but there are several out there - do a search)
4) Still not enough rotation? Up the rear spring rate to 500

For the expert on Honda autoX performance and a good source of no-BS parts at reasonable prices check out http://www.redshiftmotorsports.com/ - RedShiftChris is on this board and can really help you.

 

next combo of springs was going to be 525 front and 550-575 rear, adjustables are on their way, and ive already picked out the victors, no official driver courses just alot of auto-x mainly with the sportscar club of siouxland they're a bmw group but are trying to focus on getting more imports from our area into the scca no official classes as of yet just run what ya brung imports.

 

revalved koni yellows + gc at 500/1000 ur done.

 

1000 rear thats sounds a little stiff are you serious the biggest split ive ever herd of is 250

 

Most of the road race guys like a 3:4 front to rear spring rate ratio for their Hondas. Raising both the front and rear like you plan to do will not help your rotation issue (but will make the car ride rougher). You must increase rear rate relative to the front. So do what I said and just increase the rear rate.

 

I ran 550 lb/in springs all around with no front sway and a Sus. Tech rear sway for over a year, the car had great rotation and hardly any sway. Even with econo front tires on and grippy rear tires the car rotated like a champ. Run high enough front springs with no front sway and you're good to go and you get inside wheel traction as a bonus.

 

toe out in the (negative toe) in the rear and lower the rear tire pressure to increase slip angle. thoses are both free mods you can do. my 2cents

 

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Thats like saying "I know what the problem is, but I want to replace different parts to try and fix it"

Spring rates are on part of the whole suspension package, that can be designed to make your car rotate.

Why replace decent springs, when you can replace your crappy parts and maybe add a $200 swaybar and get the same result?

 

when i had my old sleeveovers on agx's and got my car cornerweighted, i left my buddy's shop with a really lopsided car, that handled AMAZING. well it wasnt that lopsided, but the rear pass. side was about 3/4" lower than the driver side rear, and vice versa for the other diagonal.

what you'll find that if every corner is at the exact same static height, the front left will carry more weight because of the driver, and other factors (engine block, construction of car, etc).

watching the scales, sitting in the car with proper driving position, versus gangsta lean, u can see the weight shift like 20-30 pounds from corner to corner.

 

Here is an easy way to get your car to rotate for auto-x... toe out the rear tires. I do this in my Del sol that runs stock, class and unless I overcook a corner real bad my car rarely pushes with my koni's set to full stiff in the rear. I had my car aligned, and made a mark where 0 toe is, then I put 1/8th inch marks on the car will some times run up to a 1/2 inch toe out depending on the course, when I can drive it well the times are much improved over not having the car toed out. However it defiantly hard to drive on the edge and not spin out.