CLK 500 black series body kit project
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From: Atlanta Metro
2008 clk550 - Navigator - Frontier
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CLK500 (2002)
When I start it and set off on a cold morning, in second gear, when I lift off, I get some really nice pops, but it stops happening after a few minutes
if I wanted it to be doing that a bit more often, would the best bet be removing the cats and then possibly tuning the map to overrun the injectors?
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From: Down Unda
W204 C63 AMG, W212 E250 CGI, C207 E250 CGI
got any better pics?
im sure it looks much much better in person. not feelin' the wheels but. doesnt compliment the BS kit really well. maybe you need something more aggressive design wise (wheels) and needs to lower a bit more. thats just me though. sounds amazing!!!
im sure it looks much much better in person. not feelin' the wheels but. doesnt compliment the BS kit really well. maybe you need something more aggressive design wise (wheels) and needs to lower a bit more. thats just me though. sounds amazing!!!
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From: Atlanta Metro
2008 clk550 - Navigator - Frontier
Yeah, that is primarily a tuning characteristic. The excess fuel that is not burned in the cylinder, because you and the ECU decided you didn't need more power right now, explodes somewhere along the exhaust path.
Reducing the restrictions more by removing (I assume) the secondary cats will have the explosion happen farther downstream because the exhaust is moving faster; they will be louder since they are not muffled by the secondary cats and resonator and they happen closer to the exit.
Those pops probably have always been there, even with the OE tune. The sound is diminished greatly after traveling through the secondary cats, resonator, and muffler, as well as crashing into slow moving exhaust gases. I would not remap unless it was part of an ECU tune.
Reducing the restrictions more by removing (I assume) the secondary cats will have the explosion happen farther downstream because the exhaust is moving faster; they will be louder since they are not muffled by the secondary cats and resonator and they happen closer to the exit.
Those pops probably have always been there, even with the OE tune. The sound is diminished greatly after traveling through the secondary cats, resonator, and muffler, as well as crashing into slow moving exhaust gases. I would not remap unless it was part of an ECU tune.
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Thread Starter
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Joined: Apr 2015
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CLK500 (2002)
Thread Starter
Member
Joined: Apr 2015
Posts: 114
Likes: 3
CLK500 (2002)
Thread Starter
Member
Joined: Apr 2015
Posts: 114
Likes: 3
CLK500 (2002)
Yeah, that is primarily a tuning characteristic. The excess fuel that is not burned in the cylinder, because you and the ECU decided you didn't need more power right now, explodes somewhere along the exhaust path.
Reducing the restrictions more by removing (I assume) the secondary cats will have the explosion happen farther downstream because the exhaust is moving faster; they will be louder since they are not muffled by the secondary cats and resonator and they happen closer to the exit.
Those pops probably have always been there, even with the OE tune. The sound is diminished greatly after traveling through the secondary cats, resonator, and muffler, as well as crashing into slow moving exhaust gases. I would not remap unless it was part of an ECU tune.
Reducing the restrictions more by removing (I assume) the secondary cats will have the explosion happen farther downstream because the exhaust is moving faster; they will be louder since they are not muffled by the secondary cats and resonator and they happen closer to the exit.
Those pops probably have always been there, even with the OE tune. The sound is diminished greatly after traveling through the secondary cats, resonator, and muffler, as well as crashing into slow moving exhaust gases. I would not remap unless it was part of an ECU tune.
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From: Atlanta Metro
2008 clk550 - Navigator - Frontier
I did not do a before and after dyno, and the headers were done at the same time as the ECU tune. So I can't give you hard data. My seat of the pants assessment across ~60K miles is heck yeah.
A dyno, long after the changes, yielded a 306-308 HP at the wheels if memory serves me correctly. And again from memory a stock 550 is about 267 HP at the wheels.
A dyno, long after the changes, yielded a 306-308 HP at the wheels if memory serves me correctly. And again from memory a stock 550 is about 267 HP at the wheels.
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CLK500 (2002)
I did not do a before and after dyno, and the headers were done at the same time as the ECU tune. So I can't give you hard data. My seat of the pants assessment across ~60K miles is heck yeah.
A dyno, long after the changes, yielded a 306-308 HP at the wheels if memory serves me correctly. And again from memory a stock 550 is about 267 HP at the wheels.
A dyno, long after the changes, yielded a 306-308 HP at the wheels if memory serves me correctly. And again from memory a stock 550 is about 267 HP at the wheels.
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From: Atlanta Metro
2008 clk550 - Navigator - Frontier
I think the issue may be with space for the 500. Although when I look at the cats they are not much bigger than the pipes (probably 3.5 - 4.0 inches in diameter).
I recall there is someone on the forum with a 500 and Kleeman SC. They may be able to shed some light on the cat issue/solution for the 500. Also, I think Kleeman is a sponsor on this forum.
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CLK500 (2002)
The cats at the time of the header install were supplied by Kleeman and installed by an authorized performance shop under a local dealership. Since then I have had them replaced with Magnaflow 200 cell spun (cylindrical core) cats.
I think the issue may be with space for the 500. Although when I look at the cats they are not much bigger than the pipes (probably 3.5 - 4.0 inches in diameter).
I recall there is someone on the forum with a 500 and Kleeman SC. They may be able to shed some light on the cat issue/solution for the 500. Also, I think Kleeman is a sponsor on this forum.
I think the issue may be with space for the 500. Although when I look at the cats they are not much bigger than the pipes (probably 3.5 - 4.0 inches in diameter).
I recall there is someone on the forum with a 500 and Kleeman SC. They may be able to shed some light on the cat issue/solution for the 500. Also, I think Kleeman is a sponsor on this forum.
will have a search now, update, wrapped the side fins of the front bumper today.
