Andy:
HI Markos - thanks for your questions. Nice to meet you and glad to hear there are some engine enthusiasts over there in Poland
OK - to answer the questions, the engine idles at 1600rpm. That's because the car has standalone engine management (GEMS mini-zeta) and all the parameters are programmable. 1200rpm was chosen instead of 800rpm because the cams are very aggressive - at 1200rpm it will idle perfectly, with no wandering or 'hunting'. At 800rpm, it would be hard to get a smooth idle.
Fuel consumption depends on how hard you drive. At very liight throttle, it returns around 30 miles per gallon - but I don't drive this car lightly On the track it returns around 18-20mpg when driven hard - but that's not bad because it's then using around 200bhp. It's a myth that high-powered tuned cars use lots of fuel all the time - if the engine is mapped well, then they'll be efficient when driven gently.
The car is my track day car/weekend fun car. It wouldn't be practical to use it as an everyday car!It's been in it's current spec for around a year. It's been reliable until November - then one of the valve springs shattered, which destroyed a piston and the cylinder head. Apparently the valve springs I was sold were only meant to be used for 1500 miles before replacing - but the company didn't tell me when they sold me the springs! In fact I got 6,500 miles. The engine is now being rebuilt using different and stronger valve springs and slightly gentler cams. I'm using the same spec that Swindon Racing used to use when it buit the 1600 Vauxhall group A rally cars. The springs should be strong enough for 20,000 or more miles without a rebuild. And the engine should make around 220bhp.
So what do you drive Markos? And your friends? What's the tuning scene like in Poland?
Best wishes
Andy
ode mnie:
jak widac silnik ma stabilne wolne obroty juz od 1200rpm, ale ustawiono je na poziomie 1600. jedna zjebka ze sprezynami zaworowymi z powodu niedogadania sie ze sprzedawcami gratow (sprezyny byly za malo trwale i nie poinformowano andy'ego o tym, ze musi je wymienic po 1500 mil). z powodu awarii sprezyn (co pociagnelo za soba zniszczenie glowicy, zaworu i tloka) silnik jest teraz odbudowywany z troche lzejszymi walkami i lepszymi sprezynami zaworowymi, co powinno dac efekt w postaci ok 220 koni, z przebiegiem bez serwisu w granicach 30000+km.
mam nadzieje, ze odpowiedzialem na wszystkie watpliwosci
andy wyglada na bardzo sympatycznego czlowieczka, pogadam sobie z nim troche i jak dowiem sie czegos ciekawego, postaram sie poinformowac was na forum
szkoda że taka droga
