sa22c[est. 1979]

iTrader: (2)

Hell all, I'm new to the forum, and also to the rx7. I recently just bought an SA22C, and I love it. I just had a question about spring rates. I've done alot of searching, but haven't really found anything. I don't know if you guys are familiar with re-speed, but I was browsing their website, and they had some spring sets. Well I wan't my car to stay the same height as it is now, which is about 3.5-4 inches of clearence, but I want a stiffer ride for track days. They have 2.5x7'' long, 2.5x8'' long, and 2.5 by 10'' long, with spring rates varying from 250-450. My question is, for a DD, but weekend track car, what's a good spring rate, that's still ok to drive on, but really stiff also. And what would be a good spring rate for a 2.5x7''or8'' spring. Sorry for the long question, but I just wanted to be really specific. Thanks in advance for any help.

GI8U2racing

You are asking the impossible my friend, which is probably why no one has responded. My suggestion is to find out what the HPDE guys run for rates, and go a little below that. I do remember hearing that RX7's don't demand high spring rates to handle properly, though. Somewhere in the 350-420 lb/in range will probably do you well.

Listening to people saying "it is rough" or "it is soft" is deceiving because everyone has different standards. My 1900 lb Honda has 400/600 spring rates, and when I rode it on the streets, even 5 hour trips down to school, I barely noticed. But my girlfriend at the time couldn't ride 10 minutes without getting a headache.

sa22c[est. 1979]

iTrader: (2)

so does 350 f and 300 r sound a little too much

sa22c[est. 1979]

iTrader: (2)

nvm, I didn't see the numbers you posted, So I' think I'm gonna go with the 350/300 combo

87Rx189

We put the eibach pro kit in my brothers 87 rx7 and them pair with tokico hp shocks make the car handle like its on rails.

Kentetsu

Just PM Billy from Respeed and tell him what you're looking for. He'll set you up nicely. His screen name here is Bwaits.

I run 275 front/150 rear and it works great. Excellent performance for autocross, and comfortable enough that the wife doesn't bitch. I still driver her to work most days, which is around 50 miles round trip. Loads of fun. Billy advised me on my setup, and in my opinion he got me exactly what I needed. Just give him a shout.


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pinoyremix

billy told me to get 225 front and 125 rear..i am using tokico blues..if you use illumas you can good to like 350 and 175-200 i believe...but it also depends on what kit you get..i think he said like the highest on the street kit is around 250 i think..

jgrewe

iTrader: (1)

When you start upping the rates other things start to become an issue. If the rest of your suspension is basically stock you have to stay soft in the rear because the rear binds up.

When you fix the stock suspension issues then you can get your front and rear rates more in line with each other. Think about it, the car has almost perfect 50/50 balance and the the biggest difference in sprung weight is the actual rear end itself (about 80 lbs not including the wheels). So why the huge difference in spring rates? Read through the forum and the answers will lead you to a pretty good dual purpose car.