Harmony

Anyone know what the fastest recorded speed by a bike engined road car is ? Whether it be top speed or 0-60/100 1/4m ?

thanks

Har

IanW

Tiger Z100WR I would imagine.

http://www.tigerracing.co.uk

The Z100, developed in association with Z Cars is fitted with two 900cc Kawasaki ZX9 engines, power is delivered to the 225x15" rear tyres via a bespoke transfer box. The transfer box not only combines the drive from the two engines but also provides a reverse gear.

At a recent magazine shoot-out, the fully road legal Z100 achieved a 0 to 60mph time of 3.11 seconds and a 0 to 100 to 0 time of 12.5 seconds.

Once development work had been completed on the Z100, the four wheel drive Z100WR was put in to development. For the WR, twin 1200cc Kawasaki ZX12 engines were used, each producing approximately 190bhp.

In November 2001, the Z100WR posted a 0 to 60 mph time of 2.8 seconds and a 0 to 100 mph time of 6.3 seconds using road legal tyres.

Fatman

I don't know what actually *is* the fastest BEC, but this one could be: http://www.zcars.org.uk/z100wr.htm. Spec...

Specification...
Engines: 2 x Kawasaki ZX12
Power: ~360 bhp
Torque: ~198lbft
Weight: 660kg
0 to 60 mph: 2.8 seconds*
0 to 100 mph: 6.3 seconds*

*Using road-legal tyres

Harmony

Nice acceleration times What about 1/4 mile and top speed ? These open kit car types seem to be limited to 150 ish mph by virtue of poor aerodynamics, any quick BEC's based on saloon cars that can still 'keep it going' top end ?

igratton

An XTR2 does approx 155mph without high downforce wing (we know cos we did it at bruntingthorpe)

A radical SR3 turbo will pull over 160 easily - holder if the ring production car lap record and I've seen the in car footage - nutter.

both aerodynamic cars.

Harmony

Thanks Ian

Do you think a target of 190+mph and into the 8 sec bracket for 1/4 miles is a bit ambitious for a BEC then ?

igratton

I think 190 is maybe pushing things a little.

I friend is just about to get his XTR2 turbo on the road in a few weeks. Its got the Holeshot conversion and a whole load of internal engine work. I think it makes something like 385bhp at the output shaft. XTR2's loose very little through the chaindrive system so I imagine that to be about 330 @ the rear wheels.

A 'standard' busa engine can pull over 200 on the bike when the ignition retard is removed and its allowed to rev out in 6th. I think you would seriously struggle to get 190 using one in a car....having said that - its not impossible to build 500bhp+ busa engines with the right bits.

Our XTR2 managed a 12.2 1/4 at the pod before we tw@tted about with the ECU and ignition retard and fuel pressure - won't be able to see if we can do any better as we've just sold it.

We are now getting an XTR4 with a conventional Audi 20v Turbo engine and 6speed transaxle - heavier - but cheaper to hit big power with.

however, if you use a hybrid BEC v8 like this...


(think this one runs a pair of R1 heads with a bespoke block and crank)

design a pair of inlet plenums, a pair of exhaust manifolds bolt on 2 x garret GT series turbos and some big injectors...it could be interesting

hope your pocket is deep m8.

IanT

These open kit car types seem to be limited to 150 ish mph by virtue of poor aerodynamics

No, they're usually limited by not having enough absolute power or limited by gearing.

Don't forget that Cd is not the only thing that determines drag ... CdA is what determines drag and Caterfields have a very low A that offsets the high Cd.

Ian.

durleydude

Megabusa does it in 3.2, even though Westie site says 3.48...heres one

http://www.findit.co.uk/cars/westfield/1033496.htm

durleydude

bttt

ademid

Probably not the quickest but surely the most entertaining!


http://www.zcars.org.uk/mini/mini_twin_rl.htm


Ade

durleydude

yeah could be fun !

This is still for sale tho...

http://www.lancerregister.com//showt...threadid=43341

vindaloo

I saw that bike engined V8 thing in track and racecar mag. Only copy of it I've bought.

Kitcar company Quantum have been working with them (Cyclone make the engines). Remembered now, the car's called the QUantum Xtreme. It's a Sevenesque car, normally powered by 2.0 Zetec or similar.

J.

durleydude

mines still 4 sale...

billythekid

You will need 400bhp min (maybe 450). Problem is its not going to be a 400bhp spike for 2 seconds, you are going to need to maintain WOT for a long time. Bike engines are not my area but my mate knows a fair bit - I will run it by him but I would say you will be looking at a turbo GSXr1300 with 1500cc conversion and TTS head etc etc - £££££.

Would be an interesting project - maybe a G20 or something might be a good chassis - forget Caterhams they struggle past 120mph, my old Caterham had a 3.31 diff and that would do around 155mph on the limiter, problem was even with 200bhp it could not get there..

durleydude

mines still for sale lol

Patt@firstime

http://www.zcars.org.uk/mini/mini_twin_rl.htm

Thats my car - which is up for sale by the way.

To add onto the thread it's done 0-60 in 3secs

Matt