ran 11.85 @ 120 mph in 1/4 mile, so yes, car is fast but not THAT fast.
10-14-2014, 10:46 PM
#31
Race Director
In the end; you want a good /great 1/4 mile times buy the Turbo S. Now - none of us buy the GT3 for their 0-60 mph times ect but you have to be impressed with what they did with the 991. I appreciate Mainly posting his recorded times and sharing the results and the conditions presented.
Mainly - Also appreciate your objective and subjective findings. God knows we have jumped all over some other views so we probably all should appreciate your findings/posting.
Mainly - Also appreciate your objective and subjective findings. God knows we have jumped all over some other views so we probably all should appreciate your findings/posting.
10-14-2014, 11:20 PM
#32
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Altitude bro. 2000 ft altitude your car will not trap it's best, neither will the others, hence the slow trap speeds. That 5-6 mph will probably get you your .6 too. Doubt it will "feel" a lot different, but the GT3 is not a torque monster, it just goes, and the acceleration doesn't fall off.
10-15-2014, 04:20 AM
#35
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maybe thats why i did better with my turbo cars.
and if thats the case i probably shouldnt expect to do much better in the gt3, unless i move closer to sea level.
10-15-2014, 04:21 AM
#36
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10-15-2014, 04:26 AM
#37
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Yes at 2000 ft it would be expected you would loose 6% of your power or 29 bhp. literally that would translate to 0.6-0.7s for a run (although I doubt you could apply it like that). Regardless there is a REAL effect to your engines bhp at 2000 ft vs sea level where the nominal bhp is rated and no it will not effect a turbo with variable boost to anywhere near the same degree (which is why it can be favoured for light aircraft etc).
http://speedydaddy.com/the-effect-of...-truck-engine/
http://speedydaddy.com/the-effect-of...-truck-engine/
10-15-2014, 04:42 AM
#38
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Yes at 2000 ft it would be expected you would loose 6% of your power or 29 bhp. literally that would translate to 0.6-0.7s for a run (although I doubt you could apply it like that). Regardless there is a REAL effect to your engines bhp at 2000 ft vs sea level where the nominal bhp is rated and no it will not effect a turbo with variable boost to anywhere near the same degree (which is why it can be favoured for light aircraft etc).
http://speedydaddy.com/the-effect-of...-truck-engine/
http://speedydaddy.com/the-effect-of...-truck-engine/
oh well ill take the sound of this engine over a .6 second faster quarter mile any day.
meanwhile i think ill get another cls63 for the drag strip... (i like my cars to look good while they're going fast.)
10-15-2014, 08:10 AM
#39
Drifting
re: forced induction at altitude...
If you harken back to WWII, the famous P51 Mustang (and I believe most other piston aircraft) was supercharged so that the intake pressure remained constant at high altitudes. You can translate that to turbocharging at higher altitudes affecting ETs on the dragstrip.
If you harken back to WWII, the famous P51 Mustang (and I believe most other piston aircraft) was supercharged so that the intake pressure remained constant at high altitudes. You can translate that to turbocharging at higher altitudes affecting ETs on the dragstrip.
10-15-2014, 02:13 PM
#40
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Yes at 2000 ft it would be expected you would loose 6% of your power or 29 bhp. literally that would translate to 0.6-0.7s for a run (although I doubt you could apply it like that). Regardless there is a REAL effect to your engines bhp at 2000 ft vs sea level where the nominal bhp is rated and no it will not effect a turbo with variable boost to anywhere near the same degree (which is why it can be favoured for light aircraft etc).
http://speedydaddy.com/the-effect-of...-truck-engine/
http://speedydaddy.com/the-effect-of...-truck-engine/
General rule of thumb and one that typically holds true is 10hp will yield about 1/10 of a sec on your ET and 1mph. If you're down 30hp you would normally see 3/10's slower and down 3mph.