George Smooth
///Member
Congrats to Cleo from Chiplogic for running a 11.8 today in his E60 M5 V10. They also have the record for a M6 with a 11.6 run. Well done guys.
Kisho135i said:11's!!! Imagine here by the coast. Doesnt alttitude irritate you guys. a 135 with just a chip runs +- 12.8 seconds. Imagine what george, street racer, all these chaps will run here. Hectic
Kisho135i said:Oh ok that explains alot lol.
George what do you think you'll run at the coast?
Sankekur said:Wouldn't a FI car suffer almost no altitude effects?
George Smooth said:Sankekur said:Wouldn't a FI car suffer almost no altitude effects?
The race cars with very large turbos have very little losses but cars with smaller turbos that are boosting far higher than stock or design suffer quite badly. Regardless if the same boost is achieved the oxygen density is still lower at high altitude so you can think of it like poor boost.
The turbo at altitude has to spin quite a bit faster to overcome the .15bar of boost which is the barometric pressure difference so this makes the little turbos spin into a threshold where they start producing excessive heat to its quite a art to get it right from Altitude to Sea Level.
Sankekur said:George Smooth said:Sankekur said:Wouldn't a FI car suffer almost no altitude effects?
The race cars with very large turbos have very little losses but cars with smaller turbos that are boosting far higher than stock or design suffer quite badly. Regardless if the same boost is achieved the oxygen density is still lower at high altitude so you can think of it like poor boost.
The turbo at altitude has to spin quite a bit faster to overcome the .15bar of boost which is the barometric pressure difference so this makes the little turbos spin into a threshold where they start producing excessive heat to its quite a art to get it right from Altitude to Sea Level.
Thanks, that makes sense, I thought of the induction of turbos being in the same manner as that of turbine engines, which can produce the same levels of power from sea-level all the way up into the statosphere, but those turbines is quite a bit larger![]()
George Smooth said:Sankekur said:George Smooth said:Sankekur said:Wouldn't a FI car suffer almost no altitude effects?
The race cars with very large turbos have very little losses but cars with smaller turbos that are boosting far higher than stock or design suffer quite badly. Regardless if the same boost is achieved the oxygen density is still lower at high altitude so you can think of it like poor boost.
The turbo at altitude has to spin quite a bit faster to overcome the .15bar of boost which is the barometric pressure difference so this makes the little turbos spin into a threshold where they start producing excessive heat to its quite a art to get it right from Altitude to Sea Level.
Thanks, that makes sense, I thought of the induction of turbos being in the same manner as that of turbine engines, which can produce the same levels of power from sea-level all the way up into the statosphere, but those turbines is quite a bit larger![]()
Its quite similar with turbines in my opinion. On the long hall flights such as SA to New York the aeroplanes first go to Cape Town from JHB and do the full fueling there as they do not have the power to take off here with a full load of fuel. Thats also why some aeroplanes have got altitude limits.
anile8-zn said:there will be an frc m6 competing shortly in the this v10 race.