S/C'D Cav, You are entitled to your opinion and view. It just doesn't happen to be mine.
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2009 G8 GT
628.5 RWHP on gasoline ---> ARH Long Tubes 1 7/8" & full exhaust / Magnaflow Mid Muffler / Cherry Bomb Vortex Mufflers / Magnuson 1.9 / Overdrive "non-cog" pulley system / Ported blower base / 2.70" Pulley / LS3 rockers with Trunion upgrade / Trick Flow x255 cylinder heads / 8-Rib Pulley system / Innovator West 10% Balancer / DOD Delete / Lunati Lifters / Custom CTS-V Patrick G Cam Grind / Wiseco Forged Rods & Pistons / Injector Dynamics 85lbs / 4.25" Air Intake Tube / 102mm TB & MAF Tube / 102mm TPIS Throttle Body / LS7 MAF Card / ZL1 Fuel Pump / JMS Fuel Pump Booster / VaporWorx Controller / B&M Tranny Cooler with fan / Circle-D Heavy Duty Rebuild & 265mm triple Disc Billet Converter / Camaro Tranny Pan/ Eibach Lowering Springs / BMR Front & Rear Sway Bars, LCA's, Control Arms / DBA 4000xs Rotors / Hawks Ceramic Pads
Im getting a kick out of this because S/C'D Cav and I were talking about this very subject, just last night over dinner with friends. Haaa.
PBM G8 GXP M6-Self flex fuel tune,OBX LTs, Kooks A/B, Monster Stg 3 clutch, LSA S/C, cam, fuel system 10.81@131.9 1,836 D.A
2007 TBSS-Self tune, bolt ons 13.06@106.7, 2,200 D.A
1991 GMC Syclone- Self tune/catback 12.8@104, 4,200ft D.A
2002 Bonneville SSEi- Self tune, 3.4" pulley, FWI. The beater
I am lost.... so he is saying dyno graphs mean nothing?... so when I am driving at 2000rpm and accelarate up thru the rpm's, I wouldnt be seeing the power as shown on the graph ... or the increase of power?... at 3500 rpm the power is the power on the graph... when you accelerate thru that point... are you saying he doesnt have that power increase?..... and when was the last time you seen a car accelerate on the dyno at full throttle?.... you slowly accelerate up to full throttle....
I am at a loss?...... either way... like ray says, the dyno shows he will have more useable power..... so whats your issue?...
2009 G8 GT; F1x procharger on Supercharger store direct drive system; 430cuin LSX; E85; 9" rear; DSS once pc driveshaft; 4L80
9.2@151.... fastest and heaviest G8 known to man.... ...
Well, I really wanted a quiet daily driver - sleeper. It has a full ARH system but I had the "goofy" idea of using stock mufflers to keep her quiet and mama would be willing to drive.
I think these Cherry Bomb Vortex& mid muffler may give me a a workable solution.. I'm hoping to dyno again.
Option #2 could be a quality electric cutout in front of the stock mufflers.
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2009 G8 GT
628.5 RWHP on gasoline ---> ARH Long Tubes 1 7/8" & full exhaust / Magnaflow Mid Muffler / Cherry Bomb Vortex Mufflers / Magnuson 1.9 / Overdrive "non-cog" pulley system / Ported blower base / 2.70" Pulley / LS3 rockers with Trunion upgrade / Trick Flow x255 cylinder heads / 8-Rib Pulley system / Innovator West 10% Balancer / DOD Delete / Lunati Lifters / Custom CTS-V Patrick G Cam Grind / Wiseco Forged Rods & Pistons / Injector Dynamics 85lbs / 4.25" Air Intake Tube / 102mm TB & MAF Tube / 102mm TPIS Throttle Body / LS7 MAF Card / ZL1 Fuel Pump / JMS Fuel Pump Booster / VaporWorx Controller / B&M Tranny Cooler with fan / Circle-D Heavy Duty Rebuild & 265mm triple Disc Billet Converter / Camaro Tranny Pan/ Eibach Lowering Springs / BMR Front & Rear Sway Bars, LCA's, Control Arms / DBA 4000xs Rotors / Hawks Ceramic Pads
are you going to use the 3" in/out Vortex? The Magnaflow 12468 is only 2.5 in/out.
2002 Camaro Z28 - far from stock
2009 G8 GT SRM #1 - Sold
2009 G8 GT SRM #2 - Sold
2015 Chevy SS PBM - the new new!
2009 G8 GT
628.5 RWHP on gasoline ---> ARH Long Tubes 1 7/8" & full exhaust / Magnaflow Mid Muffler / Cherry Bomb Vortex Mufflers / Magnuson 1.9 / Overdrive "non-cog" pulley system / Ported blower base / 2.70" Pulley / LS3 rockers with Trunion upgrade / Trick Flow x255 cylinder heads / 8-Rib Pulley system / Innovator West 10% Balancer / DOD Delete / Lunati Lifters / Custom CTS-V Patrick G Cam Grind / Wiseco Forged Rods & Pistons / Injector Dynamics 85lbs / 4.25" Air Intake Tube / 102mm TB & MAF Tube / 102mm TPIS Throttle Body / LS7 MAF Card / ZL1 Fuel Pump / JMS Fuel Pump Booster / VaporWorx Controller / B&M Tranny Cooler with fan / Circle-D Heavy Duty Rebuild & 265mm triple Disc Billet Converter / Camaro Tranny Pan/ Eibach Lowering Springs / BMR Front & Rear Sway Bars, LCA's, Control Arms / DBA 4000xs Rotors / Hawks Ceramic Pads
2009 G8 GT
628.5 RWHP on gasoline ---> ARH Long Tubes 1 7/8" & full exhaust / Magnaflow Mid Muffler / Cherry Bomb Vortex Mufflers / Magnuson 1.9 / Overdrive "non-cog" pulley system / Ported blower base / 2.70" Pulley / LS3 rockers with Trunion upgrade / Trick Flow x255 cylinder heads / 8-Rib Pulley system / Innovator West 10% Balancer / DOD Delete / Lunati Lifters / Custom CTS-V Patrick G Cam Grind / Wiseco Forged Rods & Pistons / Injector Dynamics 85lbs / 4.25" Air Intake Tube / 102mm TB & MAF Tube / 102mm TPIS Throttle Body / LS7 MAF Card / ZL1 Fuel Pump / JMS Fuel Pump Booster / VaporWorx Controller / B&M Tranny Cooler with fan / Circle-D Heavy Duty Rebuild & 265mm triple Disc Billet Converter / Camaro Tranny Pan/ Eibach Lowering Springs / BMR Front & Rear Sway Bars, LCA's, Control Arms / DBA 4000xs Rotors / Hawks Ceramic Pads
cant say that i have
when CARB , and manufactures do it , they arent doing it for HP numbers , they are doing it for emissions reasons , and tuners will do it for fuel and timing mapping instead of street driving , but again not measuring for max HP
the dyno graph is only showing WIDE OPEN THROTTLE , and yes that is a large reduction in power AT wide open
on the street when you are driving normally(not trying to haul ass everywhere , lol) any power loss in that range , would be ALOT LESS , if even noticeable , which is why i said the dyno is useless at that point
at the track yes the power loss will make a sizable difference , but it can also help from not blowing the tires up in smoke as fast , its always been a given the stock GT muffs are restrictive , and zap the power , BUT they do their job of keeping the car quiet and the annoying DRONE out of the car !
ive got the stock GT muff on mine for daily driving , and swap to my kooks mufflers for track use which drone like hell , and i have driven mine daily with the kooks , and its unnoticeable between the 2 muffs when driving around
There is "clearly" a set of assumption being deployed here (from both perspectives).
a) The rpm range in question does indeed take into account daily driving (i.e., passing on the freeway, freeway on-ramp accelerations, passing in many other quasi-normal driving conditions). The assumption that WOT is "purely a track only" premise - has just a wee bit of oversight.
b) Relative to the "street when you are driving normal" (i.e., if this is your sole premise - then your argument has logic and validity). I agree with you. However, I don't "always" drive this way. I would surmise that "most" on this forum don't "always" drive this way either. Somehow, for some strange reason, we all have "Driver Turret Syndrome" (a terrible disease whereby the right foot buries the loud pedal for reasons unknown)
c) However, if you refer to item "(a)" you will also need to concur that "normal driving" brings with it instances of WOT driving. Thus my premise.
d) Interestingly, my car has "never" been to the track. Never. Not that I don't want to by the way.... but it has, thus far, spent its entire driving life on the streets of Houston.
e) I trust you don't interpret this as an "forum argument" rather a healthy exchange of perspectives and ideology. I was simply sharing my dyno chart to share insights to a bunch of damn cool guys who have been extraordinarily helpful to me in the past.
2009 G8 GT
628.5 RWHP on gasoline ---> ARH Long Tubes 1 7/8" & full exhaust / Magnaflow Mid Muffler / Cherry Bomb Vortex Mufflers / Magnuson 1.9 / Overdrive "non-cog" pulley system / Ported blower base / 2.70" Pulley / LS3 rockers with Trunion upgrade / Trick Flow x255 cylinder heads / 8-Rib Pulley system / Innovator West 10% Balancer / DOD Delete / Lunati Lifters / Custom CTS-V Patrick G Cam Grind / Wiseco Forged Rods & Pistons / Injector Dynamics 85lbs / 4.25" Air Intake Tube / 102mm TB & MAF Tube / 102mm TPIS Throttle Body / LS7 MAF Card / ZL1 Fuel Pump / JMS Fuel Pump Booster / VaporWorx Controller / B&M Tranny Cooler with fan / Circle-D Heavy Duty Rebuild & 265mm triple Disc Billet Converter / Camaro Tranny Pan/ Eibach Lowering Springs / BMR Front & Rear Sway Bars, LCA's, Control Arms / DBA 4000xs Rotors / Hawks Ceramic Pads