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The mkiv Supra Owners Club

Building supra for Time Attack


lucasl

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I expect that everyone here has heard of the the Time Attack racing series, it might sound like a crazy idea but i want to build my supra and race it in this series, unless i can be convinced otherwise that the supra really isnt the right sort of car to turn into a race car. I know its not the best platform to start with but i believe with the right work done to it it could be a serious contendor + I have an ideal supra to start with 93 tt 6spd. What do you guys think

 

Here is the time attack site.

http://www.timeattack.co.uk/home.asp

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If you decide to do this i wouldn't mind getting involved on a consultancy basis. It's something that would interest me and that I have the background to be of help with. Don't understimate the costs though, it'll be an expensive project. You'd be far better off buying something that's already a race car, cost wise!!

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The Supra would be a great contender for Time Attack, providing you prep the Supra for all out track use and have deep pockets.

 

You must be a serious contender as you would be competing with the big boys.

 

If i can remember you must have-

 

Roll cage

Fire extinguisher plumed into engine bay

Helmet and race suit

 

Bijal (Future Motor-sport) has just finished building his Time Attack Supra.

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I have to say given a clean sheet of paper there are far beter cars to base a contender on, but if you like the Supra, havve one already, and love a challenge that may disappoint it'll be an intersting project. Before anyone shouts I think the MKIV is too heavy a car for this sort of thing.... !

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Thanks for the replies, I know, as i said before the supra is not the best car to start with but i like the supra and i have one already, my other thought would be to go with an evo or a gtr.

 

So im am going to focus first on chassis; suspension and lightening the car

 

-Im planning on a 6-point weld in cage (6 point is the min req) with 'cross' door bars

 

-Remove as much as i can, doors gutted to shells, lexan windows excluding front (glass req for front)

 

-Remove all unnecessary electrics

 

-I haven’t started designing the suspension setup but its going to be hard (as i haven’t done it before) this is an area that im planning to spend a fair amount of time on.

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Some of the requirements

 

Space frame chassis are not permitted for saloon vehicles, additional triangulation and bracing of suspension turret/mounting points is allowed so long as the car vehicle contains its original monocoque chassis

 

There are no maximum power / engine outputs – engine / transmissions are free.

 

Tyres permitted must be readily available road legal

 

Headlights, indicators, brake and hazard lights, front wipers and horn must be in good working condition.

 

All wings must have rounded corners.

 

All bodywork is free as is the use of FRP or carbon fibre materials.

 

Handbrake assemblies are free however a handbrake must be present

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not sure why the Supra can not be just as good as any other car on track (if they have a class system such as FWD, RWD, 4WD). But I think the better way to go with suspension is to start off with softer settings and work towards harder settings, especially if you are new to the flat out attack in a Supra.

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-I haven’t started designing the suspension setup but its going to be hard (as i haven’t done it before) this is an area that im planning to spend a fair amount of time on.

 

This is an area Chris would certainly be able to give you support on.

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I was chatting with Mick Begley on the weekend - he contended his Supra last year. The one thing I really picked up from him was the vital need for seriously strong brakes. Not only are you trying to stop 1.5 tonnes of metal, fluids and idiot (;)) but you're going to be doing it over and over.

 

I also know a chap in the local Scooby club (TerryB - he got into the mags for one event) who contended his Spec R - kept blowing things up, melting pistons, etc. It cost him a fortune, and he's only in the amateur category (no need for roll cages and stuff like that).

 

If you're doing this as an amateur, I'm sure there's plenty of us in Hampshire who'll lend a hand with the spanner work if you want.

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Lucasl - Sounds damn good buddy and deffo worth a go.

 

As mentioned above, Chris is definitely the one to advise on suspension setup with a no-bullshit approach as to what you really need. In fact, you're sorted if he's expressed an interest in this on a consultancy basis (BTW, that means he gets to drive it around the challenge ;) )

 

I wouldn't have any idea how much it would cost to get a decent car up and running for this in time, but a healthy budget of £20k would be in my mind. :)

 

Good luck bud - keep us posted if you do decide to go down this route.

 

Greg

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not sure why the Supra can not be just as good as any other car on track (if they have a class system such as FWD, RWD, 4WD). But I think the better way to go with suspension is to start off with softer settings and work towards harder settings, especially if you are new to the flat out attack in a Supra.

 

 

A fresh sheet approach would look at engine placement, power to weight, C of G height, wheel rims size permitted, aerodynamics and transmission options. My guesstimate would be an EVO or an RX-7 would be high in desirability stakes, an EVO for traction, the RX for weight and a very competent chassis, with good weight distribution. Have they got to be Japanese? If not a decent Caterfield perhaps?

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Lucasl - Sounds damn good buddy and deffo worth a go.

 

As mentioned above, Chris is definitely the one to advise on suspension setup with a no-bullshit approach as to what you really need. In fact, you're sorted if he's expressed an interest in this on a consultancy basis (BTW, that means he gets to drive it around the challenge ;) )

 

I wouldn't have any idea how much it would cost to get a decent car up and running for this in time, but a healthy budget of £20k would be in my mind. :)

 

Good luck bud - keep us posted if you do decide to go down this route.

 

Greg

 

Chris's main goal would be to get paid! :)

 

The serious Skylines you see at TOTB and suchlike have all cost over 100K, so there are some big budgets out there. I have yet to see a car with a really well honed chassis, they all seem obsessed with engine power and drag times, most are pretty appalling round the corners.

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Oooh yes, BIG brakes. What are the AP racing ones like or Project MU?

 

The Brembo set up on Nicks car is as good as it gets out of the box. Custom wise I could better that, but it would probably be overkill! His set up, with race pads, should be OK for this sort of thing, given a serious weight reduction.

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So, to put it simply, it's not cheap then Chris!

 

What do you reckon a good budget for the Supra would be in getting one prepared for something like this then? Top off the head figure I know, but any ideas?

 

Thinking I could re-mortgage my parents house.

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Have they got to be Japanese? If not a decent Caterfield perhaps?

 

No, not all Japs. Last year there were a few Lotuses, Caterfields, a few Vipers and an Aerial Atom. Mostly Japs though.

 

Agreed on the handling - just watching them you can see how sloppy they are, then whacking down 900BHP makes up for the lost time. Makes for a decent spectacle though.

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Can people please stop trying to talk him out of using a Supra, as it would be nice to actually see one compete in something.

 

Btw, for TOTB next year those who don't compete in the handling challenge will get points deducted, so this thread may be beneficial to TOTB entrants.

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