07-21-2007, 12:51 AM
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Registered User
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Join Date: Mar 2007
Location: DELAWARE
Posts: 1,041
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Quote:
Originally Posted by Brabus 3.6-24
I would need papers and messurements from a independant test facility that can show proff of the kit is not raising the cars polution at any rpms or power level together with a TÜV acceptens that have test results of the kit is fittet for the car and that the brakes can hold to the ekstra HP.
And if such papers are along with the TT kit? that would be great and a big time saver.
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First never lose sight that the stock engine/fuel management controls are still in place along with the O2 sensor and function as normal.
The O2 sensor always attempts to maintain stoichmetric. (Lambda / 14.7:1)
The piggyback controller enriches the mixture to .85 Lambda / 12.5:1 under boost.
To you it may appear that the engine then runs rich and produces more emissions, but it doesn't as the boost requires the rich mixture to prevent detonation.
The TurboTechnics Service Instructions indicates the CO setting at 1.3%-1.7% CO.
If set up properly the system is as efficient as a factory installed twin turbo such as on the current BMW 335I.
You must understand that the TurboTechnic and Mosselman kits were designed for power with low boost, durability and the ability to pass emission tests.
If you look at the exhaust tubing that your "expert" offers, it's obvious that he has not taken into consideration volumetric efficiency and the minimization of exhaust pulse interference between overlapping cylinders.
A design like his with a stand alone engine management, no O2 feedback and without catalyst would not likely pass an emissions test.
Keep in mind that the TurboTechnic kits were commisioned for and installed by an authorized Merc dealer in the UK.
Doubtful they would risk an install if it caused problems with the emissions.
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