OFFROADSUBARUS.COM

Go Back   OFFROADSUBARUS.COM > Technical Forums > Suspension, Handling and Brakes

Notices

Reply
Thread Tools Display Modes
  #151  
Unread 23rd September 2018, 06:09 AM
Dedman's Avatar
Dedman Dedman is offline
Forum Member
 
Join Date: Dec 2012
Location: Perth Western Australia
Year: 1999
Model: Forester
Transmission: 5MT
Posts: 765
Dedman is on a distinguished road
Default

So my hotbits have arrived today and so far everything is going to plan. They appear to be made to the specs I asked for and look to be well made.

However, I am struggling to understand the requirement to modify the rear top hats to achieve more travel. In my mind modifications will not result in any extra travel.
Quote:
Originally Posted by jf1sf5 View Post
Yes ! But you will also have to custom build a rear upper spring seat like shown on this picture :



Since this picture, the sides have been cut smaller, 1cm high from the inside because of the barrel type Eibach springs
Hotbits claim their bump stops will compress from 60mm to 30mm.

When I put the hotbits tophat all the way down with the bump stop in place and then without the bumpstop the change in position is 34mm so theoretically the bumpstop will reach maximum deigned compression before the hotbits tophat will bottom out. All the hotbits tophat will do is offset the spring ~40mm lower but I do not see that as a problem? Am I missing something?




__________________
99 Foz 2.0 n/a 50mm Strut, Kings, 9000lbs Winch, Offroad Bumper, Custom Sumpguard, Snorkel
Reply With Quote
  #152  
Unread 23rd September 2018, 08:37 AM
Rally's Avatar
Rally Rally is online now
Forum Member
 
Join Date: Jul 2008
Location: Sydney
Year: 2004
Model: SG Forester X 2.5 Turbo
Transmission: D/R 1.446, Twin Lockers, Front LSD, 4.44
Posts: 3,817
Rally is on a distinguished road
Default

Quote:
Originally Posted by Dedman View Post
Am I missing something?




Matching tracking bracelet for your right ankle?
Reply With Quote
  #153  
Unread 23rd September 2018, 10:28 AM
Red XS's Avatar
Red XS Red XS is offline
Forum Member
 
Join Date: Dec 2013
Location: Perth, West Aus
Year: 2006
Model: SG Forester XS
Transmission: 1.447 Low SG Manual
Posts: 818
Red XS is on a distinguished road
Default

Some of the shaft length is wasted in the oem tophat. Goal is to have the bump stop as high up on the shaft as possible so that the shaft can compress more before bottoming out bumpstop. The oem tophat still wastes some shaft length either way. I couldn't see a way of getting back that much more shaft length without buying slimmer tophats.



Also, your tophats look different to mine. Maybe they updated the design. Is the silver thing part of it?
__________________
Red Manual MY06 Forester 2.5XS
Reply With Quote
  #154  
Unread 23rd September 2018, 11:11 AM
Dedman's Avatar
Dedman Dedman is offline
Forum Member
 
Join Date: Dec 2012
Location: Perth Western Australia
Year: 1999
Model: Forester
Transmission: 5MT
Posts: 765
Dedman is on a distinguished road
Default

Quote:
Originally Posted by Red XS View Post
Some of the shaft length is wasted in the oem tophat. Goal is to have the bump stop as high up on the shaft as possible so that the shaft can compress more before bottoming out bumpstop. The oem tophat still wastes some shaft length either way. I couldn't see a way of getting back that much more shaft length without buying slimmer tophats.
Yeah I get that about 20mm of the shaft is lost in the top hat. But apart from the maybe 5mm of thickness of the hotbit top spring seat the bump stop is pretty much as high as it can go on the shaft when using the hotbits gear.

Quote:
Originally Posted by Red XS View Post
Also, your tophats look different to mine. Maybe they updated the design. Is the silver thing part of it?
I think the silver thing is an adaptor to make the tophat fit the Ebiach springs better. They asked me what springs I was going to be running during the order process. It is a very good fit on the springs.

I did notice the top adjustment shafts on mine are a lot shorter than yours. They only stick out of the thread about 10-15mm which is going to put the knobs in an interesting position when the tophats are in place.
__________________
99 Foz 2.0 n/a 50mm Strut, Kings, 9000lbs Winch, Offroad Bumper, Custom Sumpguard, Snorkel
Reply With Quote
  #155  
Unread 23rd September 2018, 11:17 AM
jf1sf5's Avatar
jf1sf5 jf1sf5 is offline
Forum Member
 
Join Date: Aug 2012
Location: Geneva, Switzerland
Posts: 1,655
jf1sf5 is on a distinguished road
Default

Seems on the picture that HotBits changed the design of the upper spring perch. How does the upper spring perch assemble to the Subaru top hat ?

Because I'm more of a crawler, I've cut half of the bumpstops off to gain a bit of up travel.
__________________
Subversive...
Reply With Quote
  #156  
Unread 26th September 2018, 07:43 AM
Dedman's Avatar
Dedman Dedman is offline
Forum Member
 
Join Date: Dec 2012
Location: Perth Western Australia
Year: 1999
Model: Forester
Transmission: 5MT
Posts: 765
Dedman is on a distinguished road
Default

Quote:
Originally Posted by jf1sf5 View Post
Seems on the picture that HotBits changed the design of the upper spring perch. How does the upper spring perch assemble to the Subaru top hat ?
Like this.



Do you still think a modified Subaru tophat is required?
__________________
99 Foz 2.0 n/a 50mm Strut, Kings, 9000lbs Winch, Offroad Bumper, Custom Sumpguard, Snorkel
Reply With Quote
  #157  
Unread 26th September 2018, 08:02 AM
Ben Up North's Avatar
Ben Up North Ben Up North is offline
can only hope to improve
 
Join Date: Sep 2017
Location: FNQ
Year: 2004 | 1992
Model: SG Forester X MY05 | 92 SVX
Transmission: 5MT D/R | 4EAT
Posts: 844
Ben Up North is on a distinguished road
Default

That looks like it's designed perfectly to go there. No modifications required, unless I'm missing something??
__________________
SLO White Foz, Quicksilver SVX!
Reply With Quote
  #158  
Unread 26th September 2018, 08:59 AM
Dedman's Avatar
Dedman Dedman is offline
Forum Member
 
Join Date: Dec 2012
Location: Perth Western Australia
Year: 1999
Model: Forester
Transmission: 5MT
Posts: 765
Dedman is on a distinguished road
Default

That is my thought exactly. Will be interested to hear JF1SF5s comments as he saw a need for the modification. Maybe Hotbits have changed their design to address the issues he identified.
__________________
99 Foz 2.0 n/a 50mm Strut, Kings, 9000lbs Winch, Offroad Bumper, Custom Sumpguard, Snorkel
Reply With Quote
  #159  
Unread 26th September 2018, 08:59 AM
jf1sf5's Avatar
jf1sf5 jf1sf5 is offline
Forum Member
 
Join Date: Aug 2012
Location: Geneva, Switzerland
Posts: 1,655
jf1sf5 is on a distinguished road
Default

@Dedman, you are using an SF rear top hat and it looks like it fits perfectly. I can't remember why I went the SG path though. The other difference is you have the spring seat flange on the inner diameter of the spring.

The only concern is when on full compression, will the flange, because it is fixed and the shaft/shock is slightly moving, come in contact with the shock housing ?
__________________
Subversive...
Reply With Quote
  #160  
Unread 26th September 2018, 09:07 AM
Dedman's Avatar
Dedman Dedman is offline
Forum Member
 
Join Date: Dec 2012
Location: Perth Western Australia
Year: 1999
Model: Forester
Transmission: 5MT
Posts: 765
Dedman is on a distinguished road
Default

I didn't even consider the SGs would be different. I will sus out which work best when I remove the struts from my SG. My SF ones are a bit shagged so I am hesitant to use them.

I don't think the alignments will be a huge issue on full compression although I am not certain how much lateral movement will be in the rubber bush. Might have to investigate further.
__________________
99 Foz 2.0 n/a 50mm Strut, Kings, 9000lbs Winch, Offroad Bumper, Custom Sumpguard, Snorkel
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -3. The time now is 01:06 PM.


Powered by vBulletin®
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.