www.gt4dc.co.uk
Maintain, Modify and DRIVE your GT-Four


It is currently Mon Oct 23, 2017 5:47 pm




Post new topic Reply to topic  [ 401 posts ]  Go to page 1, 2, 3, 4, 5 ... 27  Next
Author Message
 Post subject: Track Weapon Chassis
PostPosted: Sat Dec 29, 2007 5:31 pm 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:06 am
Posts: 4739
Location: Perth, Western Australia
Car Model: ST205
Its been a while since I reported on the Track Weapon project. I've decided to start a separate Chassis topic as the engine one is probably big enough to slow down most peoples browsers as it loads the pics :oops: The main delay in starting the chassis build has been due to the constructor, JEMS, being saturated with work. Realistically, it is estimated that the chassis will take around a year to build. I hope to include as many innovations as time and budget allow. I'll try and include as much detail as possible on the forum so that people in the GT-Four community can benefit. There may be some 'trade secrets' that remain undisclosed but a hint of mystery is always a good thing :wink:

Build activity over the next year will not be continuous as there will need to be a fair number of bespoke components manufactured. This is not an Evo or Impreza where there are loads of parts available off the shelf but hey, thats why I'm doing this in the first place :-D Anyone can build a track Evo or Impreza but how many GT-Fours do you see circuit racing? The nearest would be the Time Attack series but even this doesn't have an ST205. Admittedly Adrian at Fensport is running his Gen7 GT4X but it hasn't been built to comply with UK MSA (Motor Sport Association) circuit racing regulations. With the shell in the state you see it here it tipped the scales at a sprightly 1,120kg including most of the engine and transmission.

JEMS were quite impressed with the Toyota design and also the general condition of the shell and say it is better than many they have had to work with. They are even thinking of buying an ST205 themselves as a project car! On another positive note it turned out to be quite easy to source a new roof panel and the coachbuilders will do the specialist job of removing the old roof (including the sunroof) and fitting the new one once the roll cage has been fabricated in-situ.


Exterior

Front

Image

Nose

Image

Rear

Image

Interior

Front

Image

Rear

Image

Side

Image

Door

Image

Jack Compartment

Image

Aerial Compartment

Image

Rear Suspension Turret

Image

At JEMS

More dismantling

Image

Front View

Image

Engine remains :-( Note the modified UK sump with the oil level converted to take an oil temp sensor

Image

The original 120,000 mile engine showing evidence of twelve years on salty UK roads

Image

Interior view after JEMS had successfully removed the heater/air con units and associated pipework.
The cross bar visible in this view will be replaced by part of the roll cage

Image

_________________
Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2012 Van Diemen JL12 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp


Top
 Profile  
 
 Post subject:
PostPosted: Sat Dec 29, 2007 9:02 pm 
Offline
Junior WRC
User avatar

Joined: Thu Oct 06, 2005 10:13 pm
Posts: 555
Location: St Ives
Car Model: None
thats great Don, i'm really looking forward to seeing your project develop. The chassis is one of particular interest as i will be looking to develop my chassis and handling rather than going for more power.

There was quite a bit of bracing on Mutley - are you planning to brace the front at all?

This does look like it's going to be an interesting year ahead!

_________________
ST205




"And God said, Let the earth bring forth grass, and the earth brought forth grass and the Rastafarians smoked it."


Top
 Profile  
 
 Post subject:
PostPosted: Sat Dec 29, 2007 9:42 pm 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 5:10 pm
Posts: 1952
Location: Sunny Fareham, UK
Car Model: ST205
Great pictures Don, thanks in advance for sharing your hard earned and expensive knowledge!

_________________
Kris
95 ST205 - slept for 10 years, now waking up...
Avensis
http://www.gtfours.co.uk
_______________________________________
Turbocharging - the replacement for displacement


Top
 Profile  
 
 Post subject:
PostPosted: Sat Dec 29, 2007 10:15 pm 
Offline
Club Staff
User avatar

Joined: Thu Jul 14, 2005 3:07 pm
Posts: 988
Location: Fareham
Car Model: ST205
I know the end result will be more than worth it, but it is hard to see stormy blue stripped down past his bare essentials!

_________________
Loosey
Loosey@gt4dc.co.uk
Storm Blue JDM ST205
Super White JDM ST205
http://www.gtfours.co.uk

Some people are like a Slinky .. Not really good for anything, but they make you smile when you shove them down the stairs!


Top
 Profile  
 
 Post subject:
PostPosted: Sun Dec 30, 2007 1:38 am 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:06 am
Posts: 4739
Location: Perth, Western Australia
Car Model: ST205
Rob, the front suspension turrets will be braced to the front of the rollcage. This may include triangulating to the front rollcage crossmember as per the WRC setup. CDS will be used for the cage as T45 is more likely to break or fracture. This will incur a weight penalty of around 15kg but I'd sooner play safe with something as important as a rollcage, particularly as it will be carrying the suspension loads. The plan is for the front and rear pressed steel subframes to be replaced with spaceframes. This should reduce the weight significantly and improve the rigidity. Superstrut will be junked for McPherson struts and fully adjustable wishbones and tie rods. Again this should save a lot of weight.

Kris, you know you are always the first to hear of my secret squirrel ideas ;-)

Loosey, the toughest part was stripping the interior of Stormy Blue, particularly since he's been 'in the family' for over ten years. I felt really guilty :oops: Still, its all in a good cause and certainly better than dying a slow death on salty British roads.

_________________
Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2012 Van Diemen JL12 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp


Top
 Profile  
 
 Post subject:
PostPosted: Sun Dec 30, 2007 10:44 am 
Offline
Club Staff
User avatar

Joined: Thu Jul 14, 2005 12:44 pm
Posts: 4067
Location: drinking devil fuel
Car Model: ST205
Pedal box conversion??

Interesting to note that you don't have the floor mounted B pillar bracing


Top
 Profile  
 
 Post subject:
PostPosted: Sun Dec 30, 2007 2:17 pm 
Offline
Junior WRC
User avatar

Joined: Thu Oct 06, 2005 10:13 pm
Posts: 555
Location: St Ives
Car Model: None
what are you doing with the adjustable suspension already on it - do you want a buyer - mine is starting to leak..

_________________
ST205




"And God said, Let the earth bring forth grass, and the earth brought forth grass and the Rastafarians smoked it."


Top
 Profile  
 
 Post subject:
PostPosted: Sun Dec 30, 2007 3:56 pm 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:06 am
Posts: 4739
Location: Perth, Western Australia
Car Model: ST205
two_OH_five wrote:
Pedal box conversion??

Yes of course, twin master cylinder and adjustable bias via completely re-plumbed front/rear split brake lines. Probably going for AP front discs and calipers while retaining stock rear calipers and discs. From experience it is possible to warp the rear discs with the standard brake setup. Hopefully the adjustable bias will take some of the load off the rear.

Quote:
Interesting to note that you don't have the floor mounted B pillar bracing

Pics please ...is this a face lift mod? There is a surprising amount of flex in the shell to the extent that its quite easy to twist the door frame if you jack the body unevenly. This makes it difficult to close the door. All this will be sorted by fitting the roll cage as this will take all the suspension loads.
[/quote]

_________________
Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2012 Van Diemen JL12 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp


Top
 Profile  
 
 Post subject:
PostPosted: Sun Dec 30, 2007 4:01 pm 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:06 am
Posts: 4739
Location: Perth, Western Australia
Car Model: ST205
robbiemcvee wrote:
what are you doing with the adjustable suspension already on it - do you want a buyer - mine is starting to leak..

Go on then :) , I need you to eliminate the temptation to fit the KYB SuperStreet adjustable suspension to my standard white ST205WRC :twisted: . Wouldn't hear the last of it from Kris ;-) I'll PM you when its available.

_________________
Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2012 Van Diemen JL12 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp


Top
 Profile  
 
 Post subject:
PostPosted: Sun Dec 30, 2007 6:04 pm 
Offline
Club Staff
User avatar

Joined: Thu Jul 14, 2005 12:44 pm
Posts: 4067
Location: drinking devil fuel
Car Model: ST205
You can just about make it out here. There are better photos I've seen, still looking

Photo Courtesy of MrBarry on the OC
Image


Top
 Profile  
 
 Post subject:
PostPosted: Sun Dec 30, 2007 6:14 pm 
Offline
Club Staff
User avatar

Joined: Thu Jul 14, 2005 12:44 pm
Posts: 4067
Location: drinking devil fuel
Car Model: ST205
Found the little tinkers

Removed from a WRC which was broken - hence I'm suprised it's not present on yours

I wonder if it was one of the few rumoured Grp N "production" cars

Somewhat tortuosly via Gary from Mr B again
Image

Image

Image

From HERE


Top
 Profile  
 
 Post subject:
PostPosted: Sun Dec 30, 2007 10:47 pm 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:06 am
Posts: 4739
Location: Perth, Western Australia
Car Model: ST205
Hmmm, interesting. I'll need to check my white ST205WRC in the morning. TBH I'd have thought that these braces were fitted more as an afterthought on later production models but I guess that would mean they were non-WRC fittings. Have I just done a Carter loop on this :?: sorry :oops:

_________________
Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2012 Van Diemen JL12 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp


Top
 Profile  
 
 Post subject:
PostPosted: Sun Dec 30, 2007 10:54 pm 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:14 am
Posts: 3221
Location: Camberley, Surrey
Car Model: ST205
Excellent pictures Don :)

Must have been really hard - I wouldn't want to strip my car back that far, although like you say - its saving the car from a worse fate. :)

_________________
GT4DC Events Co-ordinator
1996 ST205 UK


Top
 Profile  
 
 Post subject:
PostPosted: Sun Dec 30, 2007 11:40 pm 
Offline
Junior WRC
User avatar

Joined: Thu Oct 06, 2005 10:13 pm
Posts: 555
Location: St Ives
Car Model: None
thanks Don, yes please let me know?

_________________
ST205




"And God said, Let the earth bring forth grass, and the earth brought forth grass and the Rastafarians smoked it."


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 07, 2008 10:38 pm 
Offline
Club Staff
User avatar

Joined: Thu Jul 14, 2005 12:44 pm
Posts: 4067
Location: drinking devil fuel
Car Model: ST205
Heeee heeee,

Guess what strengtheners I've got :D :D

I rather suspect they're part of the additional side impact system rather than chassis strengthening though :(


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 401 posts ]  Go to page 1, 2, 3, 4, 5 ... 27  Next


Who is online

Users browsing this forum: Treacle and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group