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-   Suspension | Chassis | Brakes -- Sponsored by 949 Racing (https://www.ft86club.com/forums/forumdisplay.php?f=59)
-   -   Mid-Entry Level Suspension Setup (https://www.ft86club.com/forums/showthread.php?t=58248)

Victor Draken 02-15-2014 08:34 PM

Question:

What happens if I keep the stock tyres while I upgrade the suspension as I stated in the first post? Is it gonna ride like shit because of the increase in stiffness but not of grip (stock tyres)???

Heavy understeer etc??

@Racecomp Engineering @CSG Mike

CSG Mike 02-15-2014 09:27 PM

Quote:

Originally Posted by Victor Draken (Post 1532277)
Question:

What happens if I keep the stock tyres while I upgrade the suspension as I stated in the first post? Is it gonna ride like shit because of the increase in stiffness but not of grip (stock tyres)???

Heavy understeer etc??

@Racecomp Engineering @CSG Mike

It'll ride better, if/when the damping is matched to the springs. Adding stickier tires exacerbates any balance issues (understeer/oversteer), making balancing the car to your preference more important as you go stickier and stickier.

Victor Draken 02-15-2014 10:09 PM

Quote:

Originally Posted by CSG Mike (Post 1532395)
It'll ride better, if/when the damping is matched to the springs. Adding stickier tires exacerbates any balance issues (understeer/oversteer), making balancing the car to your preference more important as you go stickier and stickier.

I believe B8 can handle tarmac springs 285lbs.
I hope to have everything installed soon so I can review the first feeling and impression on this setup.

By the way do I need less camber in the rear and more in the front to make it handle better. Is it correct?

Racecomp Engineering 02-15-2014 10:36 PM

Quote:

Originally Posted by MrH (Post 1532002)
Koni yellows are twin tubes and the Bilstein B8s are monotubes. Of course there's a huge difference in gas pressure.

Thats not common knowledge and that post was for those who dont know that.

but older Koni's from the 80's DID run higher gas levels but weren't reliable. They eventually went to low gas pressure and found it to be super reliable.

Myles

Racecomp Engineering 02-15-2014 11:16 PM

Quote:

Originally Posted by Victor Draken (Post 1532472)
I believe B8 can handle tarmac springs 285lbs.
I hope to have everything installed soon so I can review the first feeling and impression on this setup.

By the way do I need less camber in the rear and more in the front to make it handle better. Is it correct?

B6 can handle up to 340 lbs rates as thats what we tested at Bilstein USA back in December of 2012 when I was there helping with the initial road tuning of several existing kits and doing our initial testing of our GTWORX/BILSTEIN kits to come. B8 just has more rebound, both have the same compression. I will try to find dyno's of those findings of the initial testing but fear it was lost on an old laptop. I will search old emails to Drew.

Typically the difference between Sport and HD was always rebound damping and that was a hair more for the Sport.

Our GTWORX valving for the Impreza/ STI and Legacy GT didnt follow those moulds because of our spring rates( at least with the WRX and STI ). We started from scratch per se. Took 5 to 10 days of road tuning( thats 2-3 shock and valving changes per day). Then find the roughest roads in San Diego/ Poway area and tune for the worst roads in America and highway chop. The canyon roads in that area are super rough and challenging but prove to emulate eat coast roads very well.

No eta on when we will produce our version but its in the works.

Skip to the 1:05 mark where they are talking about our co-branding program.

https://vimeo.com/32248028

Myles

December 2012 Poway, California.

https://fbcdn-sphotos-g-a.akamaihd.n...43460024_o.jpg

https://fbcdn-sphotos-f-a.akamaihd.n...81820289_o.jpg

https://scontent-a-iad.xx.fbcdn.net/...81974940_o.jpg

Calum 02-16-2014 06:37 AM

Quote:

Originally Posted by Racecomp Engineering (Post 1532629)
B6 can handle up to 340 lbs rates as thats what we tested at Bilstein USA back in December of 2012 when I was there helping with the initial road tuning of several existing kits and doing our initial testing of our GTWORX/BILSTEIN kits to come. B8 just has more rebound, both have the same compression. I will try to find dyno's of those findings of the initial testing but fear it was lost on an old laptop. I will search old emails to Drew.

Typically the difference between Sport and HD was always rebound damping and that was a hair more for the Sport.

Our GTWORX valving for the Impreza/ STI and Legacy GT didnt follow those moulds because of our spring rates( at least with the WRX and STI ). We started from scratch per se. Took 5 to 10 days of road tuning( thats 2-3 shock and valving changes per day). Then find the roughest roads in San Diego/ Poway area and tune for the worst roads in America and highway chop. The canyon roads in that area are super rough and challenging but prove to emulate eat coast roads very well.

No eta on when we will produce our version but its in the works.

Skip to the 1:05 mark where they are talking about our co-branding program.

https://vimeo.com/32248028

Myles

December 2012 Poway, California.

https://fbcdn-sphotos-g-a.akamaihd.n...43460024_o.jpg

https://fbcdn-sphotos-f-a.akamaihd.n...81820289_o.jpg

https://scontent-a-iad.xx.fbcdn.net/...81974940_o.jpg

The money is burning a hole in my account for whenever they're done.

Captain Insano 02-16-2014 07:51 AM

Quote:

Originally Posted by Victor Draken (Post 1532472)
By the way do I need less camber in the rear and more in the front to make it handle better. Is it correct?

Curious bout this as well...

Calum 02-16-2014 11:58 AM

Quote:

Originally Posted by Captain Insano (Post 1533019)
Curious bout this as well...

The farther down you go, the more camber you'll gain. But you'll gain more in the rear than in the front. In the end, the standard recommendation seems to be around -2.5 in the front and -1.5 in the rear, IIRC. If you're going stupid low, that might require lower control arms to bring the back in some, but getting an alignment to find out for sure would be better than just randomly throwing money out the window.


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