Modded W211 boost level and rev limiter?
08-09-2009, 02:23 PM
#1
Out Of Control!!
Thread Starter
Modded W211 boost level and rev limiter?
I've been contemplating lowering compression on my car and increasing the boost. How much boost does an E55 actually run with a 180mm pulley? I understand it can be higher or lower depending on mods but a stock car with 180mm pulley runs how much boost? And when they are tuned what is the rev limiter increased too? In the next month I will either start a build or just get the car retuned.
08-09-2009, 07:47 PM
#2
PLATINUM SPONSOR
Based on calculations from data logging, right at 14.75 to 15psi. The tune I had, the limitor stayed stock. I asked about rev. limitor increase last fall but it seemed no-one was raising them or it was a secret. 300 rpm would be nice for me. 5% or so.
Still need to get that tune put back in.
PS, I would go with an aluminum pulley if you need to go over 180mm. These 180mm are adding about 3lbs of weight to rotational mass.
Still need to get that tune put back in.
PS, I would go with an aluminum pulley if you need to go over 180mm. These 180mm are adding about 3lbs of weight to rotational mass.
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E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
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E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Last edited by Exotic-metal55; 08-09-2009 at 07:50 PM.
08-10-2009, 12:40 AM
#3
Out Of Control!!
Thread Starter
Thanks for the info 
Maybe I should have been more clear, I was talking about raising the boost on my car which is a CLK55 with a kleemann charger. We can switch to smaller supercharger pulley with the klemann charger to a certain point and then go to bigger crank pulley. For now I'm at around 7.5 or 8PSI. The stock high compression is keeping me from taking it much higher. I thought I heard that some companies raise the rev limiter on the E55 to 6800 
Maybe I should have been more clear, I was talking about raising the boost on my car which is a CLK55 with a kleemann charger. We can switch to smaller supercharger pulley with the klemann charger to a certain point and then go to bigger crank pulley. For now I'm at around 7.5 or 8PSI. The stock high compression is keeping me from taking it much higher. I thought I heard that some companies raise the rev limiter on the E55 to 6800
08-11-2009, 09:14 PM
#4
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2005 E55 ///AMG
Thanks for the info Maybe I should have been more clear, I was talking about raising the boost on my car which is a CLK55 with a kleemann charger. We can switch to smaller supercharger pulley with the klemann charger to a certain point and then go to bigger crank pulley. For now I'm at around 7.5 or 8PSI. The stock high compression is keeping me from taking it much higher. I thought I heard that some companies raise the rev limiter on the E55 to 6800
Maybe I should have been more clear, I was talking about raising the boost on my car which is a CLK55 with a kleemann charger. We can switch to smaller supercharger pulley with the klemann charger to a certain point and then go to bigger crank pulley. For now I'm at around 7.5 or 8PSI. The stock high compression is keeping me from taking it much higher. I thought I heard that some companies raise the rev limiter on the E55 to 6800
08-12-2009, 07:53 PM
#5
Super Member
What does Cory at Kleemann have to say about running higher boost through your motor? If the internals will hold up, you could run race gas and up the boost to 10-12 lbs and avoid detonation.
08-12-2009, 10:51 PM
#6
Super Member
I've been contemplating lowering compression on my car and increasing the boost. How much boost does an E55 actually run with a 180mm pulley? I understand it can be higher or lower depending on mods but a stock car with 180mm pulley runs how much boost? And when they are tuned what is the rev limiter increased too? In the next month I will either start a build or just get the car retuned.
08-13-2009, 12:03 AM
#7
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Thread Starter
It is alot cheaper to lower compression than you think. And turbos is further down the road, standalone needs to come first. But yes if I was rich I'd have turbos right now. I'm doing it in stages, first I built the trans to hold crazy power
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03-24-2010, 11:56 PM
#8
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2006 Weistec 3.0L SC'd C55, 2006 MaxPsi PT6466 Turbo'd M3, 2019 Maserati GTS , 2020Alfa Quadrifoglio
I've been chasing the TWIN-CHARGE idea for years. Never been done successully or reliably on an MB. This one sheik in Saudi Arabia did it (check Youtube) as a novelty on a C32 but I don't think it was ever used as a daily driver.
