Light to Light Fun with a C6
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'14 E63S & '14 Audi SQ5
Light to Light Fun with a C6
On Sunday I was coming up to a light on a three lane road where there was already one car in each lane. In the middle lane was a kind of Burgundy Red C6. It didn't look like he had exhaust or anything. I pulled directly behind him. The light turns green and he gets ahead of the other two cars in the left and right lane. I was right on his tail. As soon as there was enough room for me to pull into the other lanes...you could see and hear him downshift. I then nailed the throttle...bolted into the right lane and walked him easily up about 80mph. He then had to tuck in behind my as we approached the next light. He made a right turn two lights later. He kind of looked a little perplexed when I was looking at him in the rearview mirror. I was hoping he would have followed me onto the highway (the next light).
Tom
Tom
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From: Maryland
'14 E63S & '14 Audi SQ5
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too funny, I had the same kind of race the other day against a gto 5.7 he was cool about it tho saying how he thought my car was badass etc...
I hate when 2 fast cars try to line up at a red light, and some person decides to switch lanes so they can be first at the light.. in that case, I did wat was mentioned above =)
I hate when 2 fast cars try to line up at a red light, and some person decides to switch lanes so they can be first at the light.. in that case, I did wat was mentioned above =)
Thread Starter
MBWorld Fanatic!
Joined: Nov 2002
Posts: 2,895
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From: Maryland
'14 E63S & '14 Audi SQ5
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Joined: Sep 2004
Posts: 82
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From: Northern, VA USA
'88 Porsche 951 / FJ Cruiser
Sounds low compared to all the biturbo V12 dynos around here.......but I only weigh a little over 3100 pounds so that should put me at or a little over 120 through the traps.
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From: Southern, CA.
V12-Biturbo
He was prolly heat soaked but said his C6 felt fine & strong, we ran (2) races from about 20 mph thru 130 mph both times we were DEAD even best fun I've had to date w/my SL
Only mods I have is listed in my sig + I ran RACE gas that day...
I used to own 2005 LS2 C6 w/3.90 gears/ A4 trans/ Kook's longtubes Kook's X-pipe w/200 cell cats/ Bullet cat-back/ Vararam intake CAI/ FAST Intake manifold/ Throttle body spacer/ Under Drive pulley's/ 345 ps2's Z06 wide body/Z06 19x12 whls etc.. I know how fast they can be when modded
Nice run Tom!!
Last edited by Thericker; Dec 6, 2008 at 01:00 AM.
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From: West Palm Beach, FL
2003 S600
Your sig says straight pipes. I've done the same thing on my S600, and love the sound. It's amazing how quiet it still is without any mufflers or resonators. Have you done a before and after dyno to see if there is any loss or gain? I haven't had the time yet. Just pulled them off 2 weeks ago.
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From: Southern, CA.
V12-Biturbo
Your sig says straight pipes. I've done the same thing on my S600, and love the sound. It's amazing how quiet it still is without any mufflers or resonators. Have you done a before and after dyno to see if there is any loss or gain? I haven't had the time yet. Just pulled them off 2 weeks ago.
I've talked to a couple tuners & they say "there's NO HP to be gained doing this" I disagree since ALL forced induction cars need/love to breathe, also RENNtech/Brabus/Kleemann ALL offer aftermarket free flowing exhaust systems w/larger piping advertising extra HP/Torque on the Biturbo models..On N/A car there is little if any HP to be had doing this, it's just for better sound
From SOTP I'd swear the car made more power esp on top end, I'm waiting for ECU/TCU before dyno I'll do pre-post dyno's & post them here..
What's the SOTP diference between your tuned 600 & your old SL65? I know the RENN/Kleemann ecu/tcu 600 out trap the stock 65 by 4-5 mph in the 1/4 mile....Just curious on your opinion?
Last edited by Thericker; Dec 6, 2008 at 05:41 PM.
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From: West Palm Beach, FL
2003 S600
Interesting, did you replace w/3" piping? Mines very loud on throttle but off @ idle & in cabin ZERO droan & very tolerable, the SL didn't come w/resonators just cats/mufflers...
I've talked to a couple tuners & they say "there's NO HP to be gained doing this" I disagree since ALL forced induction cars need/love to breathe, also RENNtech/Brabus/Kleemann ALL offer aftermarket free flowing exhaust systems w/larger piping advertising extra HP/Torque on the Biturbo models..On N/A car there is little if any HP to be had doing this, it's just for better sound
From SOTP I'd swear the car made more power esp on top end, I'm waiting for ECU/TCU before dyno I'll do pre-post dyno's & post them here..
What's the SOTP diference between your tuned 600 & your old SL65? I know the RENN/Kleemann ecu/tcu 600 out trap the stock 65 by 4-5 mph in the 1/4 mile....Just curious on your opinion?
I've talked to a couple tuners & they say "there's NO HP to be gained doing this" I disagree since ALL forced induction cars need/love to breathe, also RENNtech/Brabus/Kleemann ALL offer aftermarket free flowing exhaust systems w/larger piping advertising extra HP/Torque on the Biturbo models..On N/A car there is little if any HP to be had doing this, it's just for better sound
From SOTP I'd swear the car made more power esp on top end, I'm waiting for ECU/TCU before dyno I'll do pre-post dyno's & post them here..
What's the SOTP diference between your tuned 600 & your old SL65? I know the RENN/Kleemann ecu/tcu 600 out trap the stock 65 by 4-5 mph in the 1/4 mile....Just curious on your opinion?
Just took off all the crap (mufflers and resonators) in the back as an experiment. The cats are still on. There is 0 drone at idle, full throttle, or at cruise. The sound is definitely exotic. When I run the tranny in manual mode where I can get the rpm's get up above 2500, it sounds real mean. The car just sounds great. It should've sounded like this from the factory, but alas, I know It's an S Class, The Pinnacle of Luxury from MB. Compared to other cars where I have taken off mufflers, this car is quiet. I truly believe I gained some HP. Can't prove it yet. I need to get to RennTECH and use their dyno. They dynoed me last at 501 rwhp. The only thing that bothers me a little, is that if I rev the car in neutral, it takes a longer time for the revs to come down. Like the back pressure from the mufflers helped to slow the turbos down. That's the only negative side effect so far. Maybe I can get my wife's video cam and capture a sound clip. Never done that before, but I'll give it a shot.I had the 65 RennTECH tuned right after I got it. The 65 was just a beast. But that was an SL. The car I have now is an S. There's a big weight difference between the two. The 65 was definitely faster. But this big old car doesn't seem like it's real fast from sitting behind the drivers seat, it's a different feel. The SL felt more like a sports car. That's what it was. The only way I can tell is when I line up against a vette or the such, and blow them away!
Last edited by silver65; Dec 7, 2008 at 10:33 AM.
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CLS55 AMG
Actually, this is true: in many cases manufacturers deliberately use back pressure in the exhaust system to damp the responses of the turbos to prevent overspin (turbo spinning beyond its maximum safe operating speed), which can cook your turbos; it depends upon how the system is designed, though. I recall reading somethere that Subaru had a pretty strict warning about this for their WRXs, where they basically stated that a low-restriction exhast could damage the turbo.
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Joined: Sep 2004
Posts: 82
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From: Northern, VA USA
'88 Porsche 951 / FJ Cruiser
Unless your rockin' a C6 Z06 I doubt it, I have the smaller 5.5 V12 Biturbo 600 model vs Tom's 65 AMG 6.0 liter....Anyhow I ran a Manual C6 LS2 6 speed w/3.42 gearing (The owner "Dwayne" can drive it well) Supercharged C6 Maggie MP112 w/Longtube headers X-pipe etc...about 500rwhp 450rwto....
He was prolly heat soaked but said his C6 felt fine & strong, we ran (2) races from about 20 mph thru 130 mph both times we were DEAD even best fun I've had to date w/my SL
Only mods I have is listed in my sig + I ran RACE gas that day...
I used to own 2005 LS2 C6 w/3.90 gears/ A4 trans/ Kook's longtubes Kook's X-pipe w/200 cell cats/ Bullet cat-back/ Vararam intake CAI/ FAST Intake manifold/ Throttle body spacer/ Under Drive pulley's/ 345 ps2's Z06 wide body/Z06 19x12 whls etc.. I know how fast they can be when modded
Nice run Tom!!
He was prolly heat soaked but said his C6 felt fine & strong, we ran (2) races from about 20 mph thru 130 mph both times we were DEAD even best fun I've had to date w/my SL
Only mods I have is listed in my sig + I ran RACE gas that day...
I used to own 2005 LS2 C6 w/3.90 gears/ A4 trans/ Kook's longtubes Kook's X-pipe w/200 cell cats/ Bullet cat-back/ Vararam intake CAI/ FAST Intake manifold/ Throttle body spacer/ Under Drive pulley's/ 345 ps2's Z06 wide body/Z06 19x12 whls etc.. I know how fast they can be when modded
Nice run Tom!!
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Joined: Oct 2005
Posts: 194
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From: West Palm Beach, FL
2003 S600
Ding ding ding ding we have a winner!
Actually, this is true: in many cases manufacturers deliberately use back pressure in the exhaust system to damp the responses of the turbos to prevent overspin (turbo spinning beyond its maximum safe operating speed), which can cook your turbos; it depends upon how the system is designed, though. I recall reading somethere that Subaru had a pretty strict warning about this for their WRXs, where they basically stated that a low-restriction exhast could damage the turbo.
Actually, this is true: in many cases manufacturers deliberately use back pressure in the exhaust system to damp the responses of the turbos to prevent overspin (turbo spinning beyond its maximum safe operating speed), which can cook your turbos; it depends upon how the system is designed, though. I recall reading somethere that Subaru had a pretty strict warning about this for their WRXs, where they basically stated that a low-restriction exhast could damage the turbo.
