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 Post subject: Re: Track Weapon Chassis
PostPosted: Thu Nov 21, 2013 8:18 pm 
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Location: Perth, Western Australia
Car Model: ST205
I will need to ask my engine builder as I don't have the details.

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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


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 Post subject: Re: Track Weapon Chassis
PostPosted: Fri Nov 22, 2013 9:25 am 
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Location: Moscow, Russia
Car Model: ST205
TrackToyFour wrote:
I will need to ask my engine builder as I don't have the details.

...if possible
Thanks!


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 Post subject: Re: Track Weapon Chassis
PostPosted: Fri Nov 22, 2013 2:04 pm 
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Joined: Sun Apr 30, 2006 12:05 am
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Location: BIRMINGHAM
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I would assume a new front plate was made and incorperates another dummy gear in same loaction as oil pump??


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 Post subject: Re: Track Weapon Chassis
PostPosted: Sat Nov 23, 2013 11:54 am 
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Location: Moscow, Russia
Car Model: ST205
MrDB wrote:
I would assume a new front plate was made and incorperates another dummy gear in same loaction as oil pump??

Both ways, but this dummy gear must have bearings and grooves, strong plate and 90 degrees axle...or just shorter belt :)


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 Post subject: Re: Track Weapon Chassis
PostPosted: Sat Nov 23, 2013 3:07 pm 
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Location: Bournemouth
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Shorter belt is the neater solution, however IIRC the oil pump is on the path between cams & crank without the tensioner adjustment therefore if the difference in path length isn't an exact number of teeth cam timing will be affected. Easily dealt with by adjustable cam pulleys though at a much lower cost than making up a dummy oil pump pulley.

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 Post subject: Re: Track Weapon Chassis
PostPosted: Sat Jan 18, 2014 1:11 pm 
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Location: Perth, Western Australia
Car Model: ST205
Progress on the bespoke wiring loom continues. The left and right hand chassis looms are virtually complete and the focus is now on the engine loom and the cockpit switchgear. To keep costs down we are using OEM type Tyco connectors where possible. It would have been nice to have MilSpec autosport connectors throughout but if you add up the cost it's into the thousands and I can't really justify that. One thing I hadn't expected is the difficulty in sourcing the correct OEM connectors, in many ways it would have been a lot easier to use autosport connectors if my cheque book was big enough!

I recently obtained a copy of the latest edition of the Rally Race Technology magazine. This is an annual produced by the excellent Race Engine Technology monthly magazine. Interestingly the article on the M-Sport Ford Fiesta R5 rally car described how even with these cars M-Sport has eschewed the use of autosport connectors and use plastic connectors instead to keep costs down. The R5 spec is the new FIA Regional Rally Car (RRC) spec which is resource restricted. A Fiesta R5 can be yours for €180,000 compared to a Fiesta WRC costing €380,000. Still not cheap by any stretch of the imagination but it shows the sort of cost reduction which is possible. There's also an article on the JEMS built Simon Mauger 'Ford Escort Mk2'. JEMS also did the engine and chassis fabrication for my project :)

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The Dec/Jan issue of Race Engine Technology has an interesting article on Radiators and Coolers where I recognised a photo of my intercooler/radiator setup :) This was built by Concept Racing to my design which was based on the Celica GTO silhouette racecar built by Dan Gurney's All American Racers to contest the IMSA GTO championship in the late 1980's.

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https://www.highpowermedia.com/

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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


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 Post subject: Re: Track Weapon Chassis
PostPosted: Sat Jan 18, 2014 1:22 pm 
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To be fair to the oem connectors, these cars don't suffer a great deal of electrical problems compared to other makes, especially french ones. Most electrical problems are caused by 'modifications', including ones done by professionals.

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 Post subject: Re: Track Weapon Chassis
PostPosted: Fri Jul 18, 2014 12:59 am 
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Location: Perth, Western Australia
Car Model: ST205
It's been a while since my last update. Work has focussed on the wiring looms. Not the most exciting subject to document but now that we are moving into the final stages the design and layout of the cockpit switches has been good fun to research and source the components. I had taken some pics of the JMW run Ferrari 458 Italia GTE car at the Autosport show back in January. The JMW team successfully ran the car at the recent Le Mans 24 Hour race. They kindly let me take a number of shots of the interior cockpit switchgear layout. These proved to be extremely useful and a great source of inspiration for my project.

Due to the fact we are building the loom(s) from scratch and not re-using any of the OEM gear we have had to find a way of driving the lights, indicators, horns etc. etc. Consequently I looked around for a suitable off-the shelf mounting plate for the Momo steering wheel. The ones available from the likes of Tweeks, JJC etc. were very limited on the number of switches that could be mounted. Fortunately I found a company called Simtek UK which offered a plate with 12 switch positions. In practice only eight could be used and we also had to create a separate location for the ECU map selector. I'm really happy with the way the wheel mounted switches have turned out.

Steering Wheel

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Centre Console - under construction!

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Master Switch


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Lifeline Rain/Hazard Light - new ultra bright pre-production unit kindly supplied by my friends at Lifeline Fire and Safety


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MoTeC DMC Units - magnetic to hall signal converters (ABS wheel speed)

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Rear View of Interior

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Rear Diff Temp Sensor - I can see that this is pretty vulnerable if I kerb hop or go off-piste! Might just use it for testing then tuck the cable away safely during racing.


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Latest view of the engine bay


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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


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 Post subject: Re: Track Weapon Chassis
PostPosted: Fri Jul 18, 2014 7:39 am 
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Joined: Thu Jul 06, 2006 12:56 pm
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Location: Bristol / Dorset
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Amazing, just amazing.

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^^^Click the banner for my Black Treacle project thread ^^^

Now back home and mapped to 531bhp & 411lb/ft - that's enough power for now! :D


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 Post subject: Re: Track Weapon Chassis
PostPosted: Fri Jul 18, 2014 8:34 am 
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Great to have another update Don. It's looking incredible as always. I particularly like the Farnell boxes visible in the pictures. If Farnell closed down in the morning every electronic engineer in the country would go out of business :D

I like the steering wheel layout and particularly the plate from Simtek; they're one of the vendors I've selected to supply parts for the electrical system in my project as well.

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Currently planning an ST205 track & weekend build


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 Post subject: Re: Track Weapon Chassis
PostPosted: Fri Jul 18, 2014 11:34 am 
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Location: The Netherlands
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:shock: :!:

Stunning!

8)

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 Post subject: Re: Track Weapon Chassis
PostPosted: Sat Jul 19, 2014 11:13 am 
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Location: Perth, Western Australia
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Unicorn wrote:
I like the steering wheel layout and particularly the plate from Simtek; they're one of the vendors I've selected to supply parts for the electrical system in my project as well.
One of the issues we had with the Simtek steering wheel plate was that the plate was too thick for the ITW momentary switches they supply so we sourced longer reach switches from APEM via Digi-Key in the US. I suspect when Simtek cut the plate they used 5mm plate instead of 3mm. Also, to fit the switchable ECU map rotary switch to the plate required a new smaller diameter counter-sunk mounting hole to be drilled. It's all these little things that take the time to sort out!

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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


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 Post subject: Re: Track Weapon Chassis
PostPosted: Sat Jul 19, 2014 11:18 am 
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Joined: Tue Dec 09, 2008 6:51 pm
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Hi,

great wiring work :)

greetz

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 Post subject: Re: Track Weapon Chassis
PostPosted: Sat Jul 19, 2014 11:46 am 
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Joined: Fri Mar 31, 2006 7:29 am
Posts: 447
Location: Up North
Car Model: ST205
TrackToyFour wrote:
Rear Diff Temp Sensor - I can see that this is pretty vulnerable if I kerb hop or go off-piste! Might just use it for testing then tuck the cable away safely during racing.

Image


Why don't you fabricate an alloy duct that will double as protection of the sensor and provide nice cooling air to the diff?

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 Post subject: Re: Track Weapon Chassis
PostPosted: Sat Jul 19, 2014 11:33 pm 
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You'd need to make the duct out of armour plate to survive kerb bashing! Might consider fabricating a small underbody airflow deflector similar to the UK spec diff cooler.

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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


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