So I have been looking at springs, and was hoping for some help/feedback. My car is used mainly for commuting, but I also use it at the track. Therefore, I want to maintain ride quality as much as possible while improving handling. I will also upgrade dampers at the same time (looking at the new tokico d-spec. I have already upgraded my sway bars with tanabe, and have racing beat front link ends and AWR rear link ends. Are there any issues, handling or otherwise, with a set of prings which drop the front and rear by different amounts or by increasing thr front and rear spring rates by different proportions?

I am including a summary of what I have found so far;

Spring Rates
Front Rear F/R Ratio F vs stock R vs stock Front droprear drop
Stock 156 113 72% - - - -
Mazdaspeed 280 190 68% 179% 168%
Tein S 207 145 70% 133% 128% 1.4 0.7
Tein H 179 129 72% 115% 114% 1 0.3
vogtland 1 1
Tanabe GF 179 146 82% 115% 129% 1.4 1.2
Tanabe NF 162 112 69% 104% 99% 1.4 1.2
Racing Beat 187 136 73% 120% 120% 0.5 0.5
Eibach 180 130 72% 115% 115% 1.2 0.8
H&R 195 141 72% 125% 125%
Autoexe 213 146 69% 137% 129%
RSR 181 122 67% 116% 108%
espelir 213 151 71% 137% 134% 1.2 1.2
B&G 1 0.8
ICR 1.1 1.1
Intrax 1.3 0.9

Thanks.

 

Let me try this again - one simple question (maybe)...

what, if any, are the implications to balance and/or handling with springs which lower the front and rear of the car by different amounts?

 

this is the best thread i have seen for what you ask. lots of info in there make sure you read through it all.

hope this helps

beers

 

sorry,
had a dumpass moment.

https://www.rx8club.com/series-i-wheels-tires-brakes-suspension-55/eibach-tein-tanabe-mazdaspeed-69256/

beers

 

HOLY THREAD REVIVAL!
Great information in this thread.

How are the RSR? I am planning on buying RSR and I've been researching on it, what do you guys think?