dual mode exhaust opinion
10-13-2012, 08:47 AM
#1
Heel & Toe
Thread Starter
Member Since: Nov 2009
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
dual mode exhaust opinion
GM claims only 7 horsepower, or 1.6% increase in the LS3. Driving with and without, it sure feels like more. Do you all think the seven figure may be understated?
10-13-2012, 10:53 AM
#2
Race Director
It's 6HP, not 7HP and any increase in performance is all in your mind. Don't be like a Harley owner and confuse loud noise with power.
10-15-2012, 01:26 AM
#6
Race Director
Member Since: Sep 2007
Location: Peoria/Phoenix AZ
Posts: 16,555
Received 2,061 Likes
on
1,505 Posts
C6 of Year Finalist (performance mods) 2019
10-15-2012, 06:27 PM
#7
Melting Slicks
500RWHP, with LT headers, O/R X-pipe, and Z06 Mufflers & M2W controller with valves CLOSED
VS.
500RWHP, with LT headers, O/R X-pipe, and Z06 Mufflers & M2W controller with valves OPEN
Any difference!?!? I swear it feels a touch slower or less responsive... I agree on a stock car the 6RWHP would be negligible, but on a 5000rwhp car, is that 6rwhp loss multiplied?
10-15-2012, 07:56 PM
#8
Race Director
NO... Sorry I wasnt more clear...
500RWHP, with LT headers, O/R X-pipe, and Z06 Mufflers & M2W controller with valves CLOSED
VS.
500RWHP, with LT headers, O/R X-pipe, and Z06 Mufflers & M2W controller with valves OPEN
Any difference!?!? I swear it feels a touch slower or less responsive... I agree on a stock car the 6RWHP would be negligible, but on a 5000rwhp car, is that 6rwhp loss multiplied?
500RWHP, with LT headers, O/R X-pipe, and Z06 Mufflers & M2W controller with valves CLOSED
VS.
500RWHP, with LT headers, O/R X-pipe, and Z06 Mufflers & M2W controller with valves OPEN
Any difference!?!? I swear it feels a touch slower or less responsive... I agree on a stock car the 6RWHP would be negligible, but on a 5000rwhp car, is that 6rwhp loss multiplied?
If the valves are closed you don't have the 6 HP gain anyway, the 6Hp is there only if the valves are open.
If the 500RWHP is still stock displacement and stock compression then no the HP gain isn't multiplied. You are still pumping the same amount of air through the same size pipes. The stock 6HP gain is at higher RPM levels.
Last edited by haljensen; 10-15-2012 at 07:59 PM.