Well, as yo know on track there is never exactly the same with all components and drivers etc.!Then it is down to the driver, brakes and suspension...
Place THE SAME driver in the 3.2 24v 75 AND in the 12v 3.0 GTV6, with the SAME suspension and the SAME brakes and it would be NO contest if - and tyhat is a BIG if, the 3.2 DOES have 330 ATC and the GTV6 DOES only have 240 ATC...)
It would be NO contests - given equal setups and the same driver!
yes, 330 ATC from the 3.2 GTA is possible, but in a FULL-RACE build anmd for ZOTS of Euros...
What about the flames?
Before the Aussie V8 Supercars changed to E85 (85% Ethanol blend) fuel and smaller tanks (120 litres down to 75), they used to have big long trailing throttle flames out the exhausts.About flames out of the exhaust at gearshift it could just be an intensional adjustment of the injection. Usually used for cooling the engine etc.
With PEAK horsepower at 8300 rpm, we're likely dealing with an 8500 to 9000rpm motor - and in that case - a works engine! That 3.2 crank is a 78mm stroker (against the 72.6 of the 3.0 and the 68.3 of the 2.5 motors), so piston-speeds are through the roof! Yes-yes - still nothing compared to the high-revving Honda S2000 with an 84mm stroke (or the 90.7mm stroke of the later 2.2 for that matter!) The 32-year old Alfa V6 block-design has different limits!Hi, my 5 cent's to Gabor. I'm not an expert regarding GTA engines but I know for shure that for about 3 weeks ago we measure a GTV6 racecar fited with a racemodified 3,2L GTA engine and the result is: 305hk and 330Nm at wheel, max rpm 8300. The measuring equipment was an new dynopac. Br: Hans R
Closed throttle, high enough revs and the engine management system is programmed to pump fuel into the engine. With either massively retarded ignition timing or (probably not) complete ignition cut, that way the fuel passes through the combustion chamber to help absorb some heat but ignites in the exhaust at some point. The end results are the flames you see licking the car on trailing throttle as they brake into corners. It wasn't ideal for fuel economy, but it helped the V8 Supercar fraternity to keep their engines together.Cooling flames? Are you guys serious about that? I can't say from this video if either of these cars have the claimed power, but one thing is for sure, they are both dang FAST! Great videos.
Greg,
Silicone Hose Kits
OKINJECTORS.COM
Flames shooting out the exhaust isn't really unusual on a hot turbo racecar. Heck, sometimes it's hard to prevent it. That said, I have never before heard of anyone retarding the timing when the throttle CLOSES and spraying in extra fuel as some sort of cooling measure. I guess I learned something new.Closed throttle, high enough revs and the engine management system is programmed to pump fuel into the engine. With either massively retarded ignition timing or (probably not) complete ignition cut, that way the fuel passes through the combustion chamber to help absorb some heat but ignites in the exhaust at some point. The end results are the flames you see licking the car on trailing throttle as they brake into corners. It wasn't ideal for fuel economy, but it helped the V8 Supercar fraternity to keep their engines together.