PROJECT CLS63 GOODSPEED LONG TUBE HEADERS
11-07-2009, 07:04 PM
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PROJECT CLS63 GOODSPEED LONG TUBE HEADERS
Well project CLS63 long tube is finally finished, after far too many hours of design and fabrication the results where astounding. This project started by a request by a good customer of ours that brought us an already impressive CLS63. Feeling the need to go farther than off the shelf bolt-ons, we were asked to build and tune this car for not only max power but a long smooth power band. This was accomplished with many hours of calculations for proper tube diameter and length. As many of you know building a header for max power at a specific RPM is easy but building one for all around results is a little more challenging, and a challenge that we were more than happy to accept. It wasn’t easy as the proper tube configuration combined with the optimum tube diameter and length, created a tight fitting header. As many of our customers know we also design serviceability in to every product we make whether it’s one off or not. I am happy to say that this header set has been engineered to be removed easily with only the steering shaft and one power steering line bracket needing to be disconnected. With the proper tools, all fasteners are accessible from under the car and no lifting of the motor is needed. The headers are full stainless with CAD designed flanges, formed custom collectors, and V-band flanges connecting to the Goodspeed mid pipes and connector pipes going back to the Renntech mufflers. Keeping to an OEM look, the headers where designed to fit with the factory splash shields which keep fresh air over the header keeping them from overheating, this is where the factory cats originally called home. Utilizing all aspects of the cars existing design we created a no compromise large tube/long tube header that not only produced almost 40hp over the existing performance header and exhaust system but produced that power through most of the power band. The torque also was incredible making almost 90% of its gains throughout the entire curve. To follow it up, as Arizona’s top RennTech dealer we worked exclusively with Renntech staff utilizing our state of the art MaHa Dyno to build custom tune files, optimizing the power capabilities of this exhaust system.
The specs in crank power measurement
Car as delivered to us with Renntech headers, Renntech H-pipe VRP X pipe, Renntech headers, Carbonio air box, and Renntech software on 91 Oct fuel 542hp 489.3TQ (base line)
Car with GoodSpeed Performance Design Headers and exhaust, Renntech mufflers, Carbonio air box Renntech custom tune file on 91 Oct fuel. 580.6hp and 508.0TQ
Car with GoodSpeed Performance Design Headers and exhaust, Renntech mufflers, Carbonio air box Renntech custom tune file with 100 Oct fuel.597.2hp and 519TQ
Car with GoodSpeed Performance Design Headers and exhaust, Renntech mufflers, Carbonio air box Renntech custom tune file with 100 Oct fuel with NOS. 722.68 and 670.0TQ
For testing purposes we removed the EvoSport pulley. This was not due to it not making power but due to voltage issues we suspect were caused by underdriving the alternator. We would like to note that the Evosport pulley did make about 10 to 15 hp but due to liability we felt at this power level it was unsafe.
The specs in crank power measurement
Car as delivered to us with Renntech headers, Renntech H-pipe VRP X pipe, Renntech headers, Carbonio air box, and Renntech software on 91 Oct fuel 542hp 489.3TQ (base line)
Car with GoodSpeed Performance Design Headers and exhaust, Renntech mufflers, Carbonio air box Renntech custom tune file on 91 Oct fuel. 580.6hp and 508.0TQ
Car with GoodSpeed Performance Design Headers and exhaust, Renntech mufflers, Carbonio air box Renntech custom tune file with 100 Oct fuel.597.2hp and 519TQ
Car with GoodSpeed Performance Design Headers and exhaust, Renntech mufflers, Carbonio air box Renntech custom tune file with 100 Oct fuel with NOS. 722.68 and 670.0TQ
For testing purposes we removed the EvoSport pulley. This was not due to it not making power but due to voltage issues we suspect were caused by underdriving the alternator. We would like to note that the Evosport pulley did make about 10 to 15 hp but due to liability we felt at this power level it was unsafe.
Last edited by GoodSpeed; 11-07-2009 at 07:09 PM.
11-08-2009, 12:47 PM
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11-09-2009, 11:23 AM
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Where are you located Full Throttle? We currently do not have the jig complete for these headers so we're somewhat limited to having to have the vehicle present to build them at this point.
11-09-2009, 12:22 PM
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11-10-2009, 06:45 AM
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CLS55 AMG
Maryland but i would be willing to ship my car to you for fabrication of the headers and a mid section exhaust. Please PM me with pricing and your projected turn around times please.
