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Guys with 180mm and no cats - Come in

 
Old 12-23-2018, 10:01 AM
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03 e55
Exclamation Guys with 180mm and no cats - Come in

I am currently running a 180mm lower with a stock upper. The car has eurocharged mid lenghts with no cats or resonators.

I am wondering what type of boost numbers you all are seeing. I am at sea level and my car will show about anywhere from 8-9 psi in 1st gear, 8-9 in 2nd gear, and 10-11 psi in 3rd gear. Also i am loosing boost at higher Rpm. At the top of 3rd gear the car is only showing 8.4 psi. I feel as though these numbers are a little low.

Do you all see boost drop off at high RPM?? Do these numbers seem low??

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Old 12-23-2018, 06:13 PM
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W209 CLK55 AMG Kompressor, ATV BRP 800 CAN-AM
Whats your cooling setup ? more cooling= more power in this engine
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Old 12-23-2018, 10:17 PM
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03 e55
Have a 5 gallon trunk tank with a superflow pump.

during this run that I logged with these boost numbers the IAT never got above 124*
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Old 12-24-2018, 04:17 AM
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W209 CLK55 AMG Kompressor, ATV BRP 800 CAN-AM
Split cooling + Secondary HE ? or with one upgraded HE over stock ? or even still on stock HE ?

Do you have BWK ?
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Old 12-24-2018, 01:13 PM
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2002 C32AMG
Originally Posted by ChiCho55AMG View Post
Whats your cooling setup ? more cooling= more power in this engine

cooling has nothing to do with boost.

OP probably has lowish boost at high rpms due to belt slip (look for black dust around the pulley) or most likely because he's got no headers and no cats which makes for a very high flow system.
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