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Old 10-26-2014   #1
KILLSHOTS
 
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Default Weight savings with exhaust mods?
Screwing around in the garage the other day, lifting OEM exhaust pieces that I'm not sure why I saved and it got me thinking. We often talk about performance gains with exhaust mods but rarely mention weight savings. Has anyone ever taken the time to weigh any of the stock bits? Just one of my stock '90 exhaust manifolds feels like it weighs 40 pounds. I wonder how much weight I shaved from the car just by removing the entire OEM system and installing OBX headers and Corsa exhaust. Seems like it's gotta be 75-100 pounds net. Any thoughts?
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Old 10-26-2014   #2
efnfast
 
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Default Re: Weight savings with exhaust mods?
Because of the above, I've been pulling the air pump and related. I need to get under the car to remove the rest of the air lines.
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Old 10-26-2014   #3
Hog
 
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Default Re: Weight savings with exhaust mods?
F=MA

Shedding 100lbs is like adding 10hp or 1mph in the 1/4 mile trap speed on mid 3000lb cars.
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Old 10-26-2014   #4
GOLDCYLON
 
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Default Re: Weight savings with exhaust mods?
Quote:
Originally Posted by KILLSHOTS View Post
Screwing around in the garage the other day, lifting OEM exhaust pieces that I'm not sure why I saved and it got me thinking. We often talk about performance gains with exhaust mods but rarely mention weight savings. Has anyone ever taken the time to weigh any of the stock bits? Just one of my stock '90 exhaust manifolds feels like it weighs 40 pounds. I wonder how much weight I shaved from the car just by removing the entire OEM system and installing OBX headers and Corsa exhaust. Seems like it's gotta be 75-100 pounds net. Any thoughts?
Never really thought about that Chris but the Corsa system is a little lighter than stock
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91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
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Old 10-26-2014   #5
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Default Re: Weight savings with exhaust mods?
Weight is one reason Crovette went w NPP exhaust actuators and eliminate the resonator.
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Old 10-26-2014   #6
PhillipsLT5
 
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Default Re: Weight savings with exhaust mods?
My car weighed 3500 lb after mods, Mesa Police
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Old 10-26-2014   #7
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Default Re: Weight savings with exhaust mods?
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My car weighed 3500 lb after mods, Mesa Police
So that's how the Mesa police punished you for doing that smoky burnout in their substation parking lot, Phil? They WEIGHED YOUR CAR?!
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Old 10-27-2014   #8
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Default Re: Weight savings with exhaust mods?
I went back and looked up an old article I wrote on exhaust systems for the original Registry newsletter in the late '90s. As part of my research I had weighed the stock (from a '93), Borla and Corsa cat back systems. All three systems weighed an identical 64 pounds. --Bob
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Old 10-27-2014   #9
KILLSHOTS
 
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Default Re: Weight savings with exhaust mods?
Quote:
Originally Posted by WARP TEN View Post
I went back and looked up an old article I wrote on exhaust systems for the original Registry newsletter in the late '90s. As part of my research I had weighed the stock (from a '93), Borla and Corsa cat back systems. All three systems weighed an identical 64 pounds. --Bob
Wow, that's shocking to me. My stock mufflers feel so heavy and I thought I remember the Corsa mufflers feeling much lighter, prior to being installed. Oh well, one area where I KNOW I shaved a bunch of weight is in the headers. The stock manifolds weigh a ton and the headers weigh almost nothing in comparison.
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Old 10-27-2014   #10
GOLDCYLON
 
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Default Re: Weight savings with exhaust mods?
Quote:
Originally Posted by KILLSHOTS View Post
So that's how the Mesa police punished you for doing that smoky burnout in their substation parking lot, Phil? They WEIGHED YOUR CAR?!
Whaaaaat?
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91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
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