The STX thread!
#2401
Not yet famous
iTrader: (7)
You can buy a kit which has more decals than the minimum required:
K-DECL-XX-WM1
*For decals and kits above, replace XX in part number with BL for Blue, BK for Black, SL for Silver, and WH for White"
Or you can also just order the three you need:*For decals and kits above, replace XX in part number with BL for Blue, BK for Black, SL for Silver, and WH for White"
1 DECAL, MAZDASPEED 26"
Part No : 0000-10-MS26-XX
2 WHT MAZDA DECAL 22"
Part No : 0000-10-0022-XX
Part No : 0000-10-MS26-XX
2 WHT MAZDA DECAL 22"
Part No : 0000-10-0022-XX
#2402
European livin n ohio
Hey guys. I just got my star specs mounted on my rpf-1 today and I'll be running my first event on them Sunday. I ran a few events bone stock last year but have installed koni yellows, tein s-tech and the aforementioned wheels and tires. My questions is what would be a good baseline psi be to start with? I filled them to 40. I understand a lot depends on driving style and I'm just looking for a place to start.
Also about the koni's, I have the rears on approx 25% stiffness and the fronts I'll turn to full stiff on race day. Question is, what should I be "feeling" for if the front is too stiff? Under or oversteer? And how many turns should I back off when adjusting?
Thanks
I'm new at adjustable suspension so I'm trying to learn as I go lol. I just can't interpret the "butt-dyno" to solutions yet.
Also about the koni's, I have the rears on approx 25% stiffness and the fronts I'll turn to full stiff on race day. Question is, what should I be "feeling" for if the front is too stiff? Under or oversteer? And how many turns should I back off when adjusting?
Thanks
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
#2403
Angler of the Year
iTrader: (3)
I ran a similar suspension/wheel/tire setup for a while and I ran 36F/32R psi
I also ran 8F/5R for shock stiffness but, it's really all in what you like
different strokes for different folks
best to just test it out and change things up to see what works best for you
I also ran 8F/5R for shock stiffness but, it's really all in what you like
different strokes for different folks
best to just test it out and change things up to see what works best for you
#2404
Eric Simmons
iTrader: (1)
Join Date: Jan 2012
Location: Macungie PA
Posts: 211
Likes: 0
Received 0 Likes
on
0 Posts
You can buy a kit which has more decals than the minimum required:
K-DECL-XX-WM1
*For decals and kits above, replace XX in part number with BL for Blue, BK for Black, SL for Silver, and WH for White"
Or you can also just order the three you need:*For decals and kits above, replace XX in part number with BL for Blue, BK for Black, SL for Silver, and WH for White"
1 DECAL, MAZDASPEED 26"
Part No : 0000-10-MS26-XX
2 WHT MAZDA DECAL 22"
Part No : 0000-10-0022-XX
Part No : 0000-10-MS26-XX
2 WHT MAZDA DECAL 22"
Part No : 0000-10-0022-XX
Simmons
#2405
Registered
iTrader: (2)
Hey guys. I just got my star specs mounted on my rpf-1 today and I'll be running my first event on them Sunday. I ran a few events bone stock last year but have installed koni yellows, tein s-tech and the aforementioned wheels and tires. My questions is what would be a good baseline psi be to start with? I filled them to 40. I understand a lot depends on driving style and I'm just looking for a place to start.
Also about the koni's, I have the rears on approx 25% stiffness and the fronts I'll turn to full stiff on race day. Question is, what should I be "feeling" for if the front is too stiff? Under or oversteer? And how many turns should I back off when adjusting?
Thanks
I'm new at adjustable suspension so I'm trying to learn as I go lol. I just can't interpret the "butt-dyno" to solutions yet.
Also about the koni's, I have the rears on approx 25% stiffness and the fronts I'll turn to full stiff on race day. Question is, what should I be "feeling" for if the front is too stiff? Under or oversteer? And how many turns should I back off when adjusting?
Thanks
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
#2406
European livin n ohio
Your car will probably push with the shocks setup that way, particularly in transitions. Pay attention to what it does in a slalom, or around a tight pivot cones. Keep softening the front shocks until the rear end starts to come out, and then tighten them back up a bit. Also, don't make adjustments based on the behavior of the first run - cold tires are not a good reference point.
#2410
Spring testing today
Had a few springs laying around and had an opportunity to test them on a Roehrig dyno. Key things learned...springs tested were not linear when pushed to their maximum travel ratings and manufacturer provided maximum travel ratings are not necessarily accurate.
For reference, the Eibachs are 600lb 7" x 2.5" and are listed to have 3.78" of travel. Unfortunately I was looking forward to trying them on the car but they don't seem to be option. Estimating the front spring to compress 1.56" when the car is on the ground it only offers approximately .75" to 1" of usable travel in compression. All other springs were 7" except the Hyperco which was just sitting around and looked to be a 8" x 2.25" spring.
Additional info found and per Eibach's literature: "All Eibach motorsport springs are tested between 20% and 70% of the spring’s total travel." Based on this and the results you should count on having about 50% of their rated travel to work with.
For reference, the Eibachs are 600lb 7" x 2.5" and are listed to have 3.78" of travel. Unfortunately I was looking forward to trying them on the car but they don't seem to be option. Estimating the front spring to compress 1.56" when the car is on the ground it only offers approximately .75" to 1" of usable travel in compression. All other springs were 7" except the Hyperco which was just sitting around and looked to be a 8" x 2.25" spring.
Additional info found and per Eibach's literature: "All Eibach motorsport springs are tested between 20% and 70% of the spring’s total travel." Based on this and the results you should count on having about 50% of their rated travel to work with.
Last edited by JeffH; 04-02-2012 at 01:37 PM.
#2411
Had a few springs laying around and had an opportunity to test them on a Roehrig dyno. Key things learned...springs tested were not linear when pushed to their maximum travel ratings and manufacturer provided maximum travel ratings are not necessarily accurate.
For reference, the Eibachs are 600lb 7" x 2.5" and are listed to have 3.78" of travel. Unfortunately I was looking forward to trying them on the car but they don't seem to be option. Estimating the front spring to compress 1.56" when the car is on the ground it only offers approximately .75" to 1" of usable travel in compression. All other springs were 7" except the Hyperco which was just sitting around and looked to be a 8" x 2.25" spring.
Additional info found and per Eibach's literature: "All Eibach motorsport springs are tested between 20% and 70% of the spring’s total travel." Based on this and the results you should count on having about 50% of their rated travel to work with.
For reference, the Eibachs are 600lb 7" x 2.5" and are listed to have 3.78" of travel. Unfortunately I was looking forward to trying them on the car but they don't seem to be option. Estimating the front spring to compress 1.56" when the car is on the ground it only offers approximately .75" to 1" of usable travel in compression. All other springs were 7" except the Hyperco which was just sitting around and looked to be a 8" x 2.25" spring.
Additional info found and per Eibach's literature: "All Eibach motorsport springs are tested between 20% and 70% of the spring’s total travel." Based on this and the results you should count on having about 50% of their rated travel to work with.
![Dunno](https://www.rx8club.com/images/smilies/dunno.gif)
#2412
Bumpstops? Don't have them, at least for now. There's approximately 2" of shock travel at my ride height which is low enough not to clear most obstacles on the street. My goal was to have the tire bottom out before my shock did but haven't determined if that's the case just yet.
#2414
#2418
#2419
Eric Simmons
iTrader: (1)
Join Date: Jan 2012
Location: Macungie PA
Posts: 211
Likes: 0
Received 0 Likes
on
0 Posts
I did 4 events so far, 3 in the dry and one in the wet. I got 2nd, 3rd, 5th, and 8th in Pax so far.
The car was a handfull in the Wet/cold event on the Dunlops. This Saturday I have a test and tune in NJ, and i am going to run the Dunlops and Toyo's back to back to see what I like better. I was hoping to have the car fully done before the D.C. pro, but that's not going to happen.
Simmons
The car was a handfull in the Wet/cold event on the Dunlops. This Saturday I have a test and tune in NJ, and i am going to run the Dunlops and Toyo's back to back to see what I like better. I was hoping to have the car fully done before the D.C. pro, but that's not going to happen.
Simmons
#2421
Registered Badass
iTrader: (1)
For those of you running coilovers, how much preload to you run? I am low and I feel that I have too much travel due to my front tires rubbing at the top of the fender liners under load. Right now I basically just hand tightened the spring perch so there isn't any up and down movement but springs still turn..
#2422
Not yet famous
iTrader: (7)
With 215 lb driver and exactly 1/4 tank of gas:
LF: 809 lb RF: 750 lb
LR: 747 lb RR: 678 lb
Total w/ driver: 2984 lbs
Cross%: 50.0%
Front%: 52.2%
Left%: 52.1%
Total w/o driver: 2769 lbs