Aussieveedubbers 路 VW Circuit Racing

1300cc Historic Touring Car pics and specs

https://forums.aussieveedubbers.com/threads/102256/1300cc-historic-touring-car-pics-and-specs

pompom 路

No probs Ben, here's some eye and brain candy...Cheers! ian

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British Historic Touring Car
Car Spec: 1965 swing axle Beetle, CSP disc brakes all round, 1285cc, 44 Webers, Engle FK10 cam, reworked stock heads with stock sized valves, cooling by 12 inch electric fan and ram air pipes, approx 120-125bhp@ 8000rpm. Bears close ratio gearbox with a Quaife ATB diff (geared for a top speed of 180kph), Dunlop historic crossply tyres, weight around 740kg with driver. Front suspension: Stock beam, springs and rubber bushes, adjustable Formula Vee anti-roll bar, 2.5" dropped spindles, Quantum double adjustable motorsport dampers. Rear suspension: Stock springs and rubber bushes, lowered 2 splines, custom made heavy duty adjustable Z-bar, Quantum double adjustable motorsport dampers.馃樀馃樀

vassy66T1 路

Thanks for sharing the info
Anything special about the dropped spindles (i.e. brand etc.) ?

sander288 路

What sort of exhaust are you running Ian?

benny_acko 路

Awesome!Thanks for that Ian

HappyDaze 路

My kinda car.馃憤

pompom 路

Anything special about the dropped spindles (i.e. brand etc.) ?
Nopey!...Just bogo EMPI drops.

Added a tiny bit of negative camber and thats about it (historic tyres don't like too much camber)

pompom 路

What sort of exhaust are you running Ian?
Currently it's just a small diameter merged drag system with a tuck under silencer. The original bugpack silencer has been replaced with the type of thing you would normally see on a Formula Vee.

Future plans are to mount the electric cooling fan under the car to free up the engine bay, then have a custom 'teepee' style merged system above the engine to make the exhaust as short as possible (the higher the rpms-the shorter the exhaust)...that'll be a wild looking engine!

Will have to shroud the carbs due to the heat for that one.

mactaylor 路

great footage can you show us some engine pics?

vassy66T1 路

Thanks for sharing info

Much appreciated馃憤

pompom 路



Here's the motor as it stands...Stock oil cooler has been removed and replaced with a pair of external coolers either side of the gearbox. lightweight race alternator, 2250cfm 12" electric fan (the back of the aluminium fan shroud is V-shaped to split the air to each side of the engine and to stop the air from cavitating), plus four 3" hoses feeding cool air from under the car, straight on to the heads!

Originally I had the stock cooling system combined with a single external oil cooler...With the electric fan/ram air combo (that everyone said wouldn't work 馃槩 ) the oil temperature is now 10 degrees cooler.

The alternator and electric fan use around 1.5bhp, but I can live with that as the electric fan saves over 20bhp over the stock VW fan at the 7500-8000rpm the engine runs at

pete wood 路

馃憤 馃憤

benny_acko 路

Love it

modnrod 路

That electric fan mod is huge.
Good one! 馃憤

pete wood 路

Just a few queries;
I read some time back your front end is balljoint. Is that setup still the same?
What sort of bottom end is the motor running? counter weighted crank and carillos? Surely the pistons are little special too?

Super1302 路

Neato, very likeable mods too馃憤

cnfabo 路

pete wood wrote:Just a few queries;
I read some time back your front end is balljoint. Is that setup still the same?
What sort of bottom end is the motor running? counter weighted crank and carillos? Surely the pistons are little special too?
I think Ian is still running mahles...

sander288 路

From memory it is a balanced crank with carillo rods; mahle barrels and pistons, with a FK10 cam with some nice head porting. It was built by a UK formula vee guru so it's put together right

Gracey 路

Awesome car!!

You say the oil temperature dropped 10 deg, did you also measure cylinder head temperature before and after?

pompom 路

pete wood wrote:Just a few queries;
I read some time back your front end is balljoint. Is that setup still the same?
What sort of bottom end is the motor running? counter weighted crank and carillos? Surely the pistons are little special too?
Hi

The front beam is simply a stock balljoint beam with stock rubber bushes...nothin fancy needed

The internals are 69mm counterweight crank, Engle FK10 Cam, carillo rods and stock 77mm Mahle pistons. The tops of the pistons have been notched to give clearance to the valves due to the large valve lift and the top edge of the pistons have been angled (domed) to reduce compression and create more turbulence. Finally as the stock size exhaust valves are very close to the edges of the barrels, the barrel near the valve has been machined to provide a bit more flow around that part of the valve.

pompom 路

Gracey wrote:Awesome car!!

You say the oil temperature dropped 10 deg, did you also measure cylinder head temperature before and after?
Unfortunately we never got as far a fitting a sender in the head, so the head temps are a mystery.

At the last rebuilt the engine company said that the engine looked like new, so I guess all is well.

I've bought a laser temperature meter which we can point at various parts of the engine as soon as I come off track. We'll also use this on the tyres, brakes and twin oil coolers and make changes as necessary.

HappyDaze 路

Great to see what you are doing there, pompom.馃憤