NCross

iTrader: (18)

I had I nice setup on my 79. Not the most lavish springs or struts, but I liked it a lot. It was my 2nd DD. My setup on my old SA was...

RE-Speed bolt on coil kit on the front- 250 lbs I think. Had about 2 inches of travel after it was lowered. Maybe 3/4" of fender tire gap.

Racing Beat rear spring. I cut maybe 3 coils to match the fronts ride height.

KYB GR2 struts/ shocks all around

Racing Beat front and rear sway bars.

Racing Beat front tri point strut bar.

15x7 +20 Rota RB with 205-50-15 tires.

Garyrotor79

Is Circle Track Stuff at 2060 17th Street Sarasota Florida? Couldn't find a website?
I'm using mine to autocross and I have 20inch high Goodyear rubber which has lowered the car 2-3 inches without changing the suspension geometry.
I have all the goodies for the front, coilover kit camber plates and adjustable shocks but still sourcing out parts for the rear.

Garyrotor79

Tried the phone number for Circle Track Stuff 941 330-2125 and its no longer a good number for them. When is the last time you dealt with them? Am I calling the right place?

Rotary-MG

iTrader: (1)

When I upgraded my suspension to all RB sourced parts, I left the OEM shocks in place since they were low miles. After a few sessions at Willow Springs I've yet to notice an issue with the shocks. I have to do something about my wheels/tires and the loose nut behind the wheel before crying about OEM shocks.

The ride height is good for the street, but I wish it were an inch or so lower.

But each upgrade will then point to the next weakest link....

Being in So Cal, I don't think I have a right to complain about the cold even if it's into the 40's. We had a frost alert that killed half my plants overnight. But I think of you guys that have to shovel show. I just installed an infra-red directional heater in my garage for $39 from Amazon. Now my wife is complaining that I disappear into the garage all night.

Rotary-MG

iTrader: (1)

sorry for this 2nd post.
But my other reason for going with RB is that I can drive there in 45 min. and they are just amazingly nice people. They'd take the whole morning to talk to a newb like me, and they gave me a T-shirt!

dankekong

iTrader: (2)

Very nice. I may stay on the racing beat route...and I may also be investing in a couple of those radiant heaters for the ol garage!

j9fd3s

iTrader: (3)

lmao! no, anyplace that sells circle track parts Home Page and the website is a mess but AFCO springs - Misc

a height adjuster like RE speed sells is common in the oval track racing world

Rotary-MG

iTrader: (1)

Deciding what coil over set up to with on the RX7 seems daunting.
Even if you know the corner weights how do you choose?

I've been looking at that circle track coil over stuff for when I set up my MG Midget's triangulated 4-link. But the problem I'm having is all the variety. Is there a reference chart or calculator to help guide what to choose? Things to consider are travel, rebound, spring rates, shock valving, progressive rates? There is a ton of stuff in the Summit, Speedway and Jeg's catalogs.

I'm looking through the current AFCO catalog right now and the guides in there seem like they are written by a sales person, not an engineer. Plenty of advice if you want to drive in a straight line or a circle. OMG, there are pages upon pages written here breaking down the LEFT turn into 5 component parts and diagnosing issues and a tuning guide to optimize performance for a LEFT turn. What if I want to turn RIGHT? (?go into a ditch?)

I have just learned that Circle track cars use difference spings/tires/shocks for all four corners.
Little help to a wanna be road racer like me.

Adjustability seems infinite, but I feel like I'm just throwing a dart when trying to choose one.

I'm going to keep reading...hmmmmm......."dual stage progressive coils....."

Redliner223

iTrader: (6)

So, simply put if you want springs you either have to go with racing beat or a coilover suspension, correct?

j9fd3s

iTrader: (3)

most people go with a tried and true spring choice like 250/150 or 350/175, buy off the shelf shocks like the tokico's and call it good.

spring length is fairly simple, you need to figure out the ride height you want, and do a little measuring

if you wanted to go further, its kind of full racecar stuff, and you really should be datlogging.

zaridar

iTrader: (3)

Try WI... Its going to be -11° tonight with -30° windchill... Id love 40° right now! I agree with wantig spring!!!

zaridar

iTrader: (3)

Btw I have the Ground Control weld on kit with KYB shocks... stock rear springs.... I dont know what to do for rear... I like the GCs so far but dont like that when you lift the car up the spring can unseat... i siliconed the bottoms so they don't... as for the rear i seem to have a sag on one side... I also have the full Energy poly kit... that made the biggest difference. From shot stock to good poly much much more stiff... thinking about getting stock rears new and cutting them to match ride height... but then again set of 4 RBs is about the same price as stock rears last time i price checked

dankekong

iTrader: (2)

This is true. Might as well get the RBs and get a small spacer for the top part of the mount to level out the car. Mine is the same way...sits a bit funny. Hopefully that changes with a different rear end (still looking for a gsl rear housing and internals) and better suspension!

Garyrotor79

I think someone needs to start a new post on rear SA/FB suspension specifically. The front doesn’t seem to be a problem with many options. Check out “slammed fb in Canada” the guy did an awesome job on the front. Ingenious! He used the ReSpeed setup for the rear which I tried to buy in October. After three months without receiving the goods I cancelled the order. Myself, I don’t want to go with a coilover rear setup. If ReSpeed could do it, someone else should be able to come up with part numbers for us to make up a similar setup. Most of the springs I’ve seen on sites have been five inch OD. There is a wide variety of spring rates but can they be used with some type of perch adaptors top and bottom and would there be any interference to any links adding another quarter inch on the spring diameter? I am using springs I took out of an 82 I scrapped. They are four and a half OD by thirteen inches free length. One end open and one end closed, not ground flat on any end. Eibach, Racing Beat, Suspension Technologies and B&G all offer front and rear spring packages which replaces and improves the thirty year old stock springs to make them decent for street driving. I think Racing Beat has the highest rear rates at 112lb, certainly not the 150 – 180lb rates others want for track use or autocross.
Any ideas or part numbers?

Garyrotor79

I have attached some photos that show the dimensions of the rear springs and the space around the springs while in place. I think there is enough space to fit a five inch spring in position if somone could come up with some type of adaptor to take up the gap....

Garyrotor79

I wonder if there would be 100 first gen guys that would want 150lb or so springs? Eibach might make a batch? Not sure if they would or how much they would charge.

zaridar

iTrader: (3)

Im in

THEWITCHKING

iTrader: (3)

I've read that miata springs fit our cars quite nicely, but that was only one thread, and I read it like 15 minutes ago, and came across this one trying to find more info lol. Anybody know anything?

On the subject of the racing beat springs, I was going to buy some, but after doing a bunch of research I decided against it. In most cases they make your car sit at a higher ride than stock, and they aren't much different than stock. Then again, this is parroted information. Racing beat makes bad *** parts for our cars. What mainly steered me away from them though was that I wasn't satisfied with the drop. Needz moar low.

zaridar

iTrader: (3)

this is why i prefer spring... sorry i had to..

Garyrotor79

I’m going to have a machinist make up top and bottom adaptor rings so I can use a standard or conventional five inch spring. Something off the shelf from Eibach, Hyperco, Afco etc. Then I can choose from a wide range of spring rates and keep my car stock. I would like to start with a spring that is similar to the stock spring which is closed on one end and open on the other, not ground flat on the ends. The spring would probably be around ten inches or so to allow for the adaptors. The machinist I know is retired and will be in Florida till March 6th though. That should give me time to find the springs and get things ready for him. I have a rear end and stock springs to take over to him, but I think I will have to make a plaster mold of the upper spring pocket for him to measure from. I want these to be something light weight and simple, easy to reproduce in case anyone else wants them. (If they work) Anyway that’s my plan.....

Garyrotor79

While searching for springs, I found some Intrax springs, part number IX-451013. $169.96 for a complete set of front and rear. It doesn’t say the rates but says they are the same as the Eibachs which are 171lb front 100lb rears. They were at classicgarage.com which is in Brewster NY. Looked like a good deal so I bought a set for my daily driver. The rears were bottoming quite often on me. For my autocross car I’m trying to get some more info on some Eibachs that may work for my rear conversion, 1300.363.0175 and 1300.500.0175. Both are 13 inches by 175lb rating. One is a five inch OD and the other is .363 ID. The .363 is a coilover spring that is ground flat on both ends but is very close in size. Going to get pricing and maybe try one. Anyone else have recommendations?

ljpviper

iTrader: (3)

I have a set of re speed rear coil over kit with 200lb springs. I am going to list them on the classifieds. I want 200.

THEWITCHKING

iTrader: (3)

B&G provide a good steerable ride. Not as stiff as I would like but you can't go wrong for the price. Good drop too.I'm thinking about getting them if Miata springs don't work out. Best bet in my opinion. Btw if you get them go through gripmotorsports.com they have them for 215 with free shipping.

Garyrotor79

Thanks for the offer but 150 - 175 is the range I'm looking for according to what I've read using 300 lb fronts.
I enquired to Lovells in Australia, they have a good variety of springs for first gens. They told me the rate is 150lb but haven't gotten back to me with pricing yet.

Garyrotor79

This 19 year old on you tube used 350 front and 200 rear but his has a V8.
"The zeroF**ks Given RX7 -Tuned.
Its a great video of a first gen. Looks like my parts car.