How much boost is safe?
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German vehicles stink, will never buy again. Moved on to Toyota and BYD.
How much boost is safe?
How much boost is safe for a 600?
I don't want to prematurely burn out my turbos or engine. It seems most tuners stick to 18 lbs or less.
I was surprised to find out that the 65's get different turbos than the 600s and that is why it is safer to push them to 22 lbs.
I don't want to prematurely burn out my turbos or engine. It seems most tuners stick to 18 lbs or less.
I was surprised to find out that the 65's get different turbos than the 600s and that is why it is safer to push them to 22 lbs.
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new balance
depends on your definition of safe....my car at a minimum sees 18.5lbs with some boost spikes to over 21lbs. But these are peak values and unfortunately we dont get sustained boost st these levels. More important then boost is how much fuel we have at those higher levels. Although Im of th opinion that we have plenty of injector, the 65 does have slightly larger injectors to go along with the higher boost.
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From: ca
2003 s600
I am hitting 22.3psi with my kleemann tune, I hit limp mode starting in 5th M mode full throttle at 2000 rpm and heard a noise and boost dropped to 0. Had to restart the car b4 boost came back, could not go over 3500 rpm until I restarted. Could have been tranny limp mode also due to the torque spike, but still had all gears, just no power.
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GL550, C55, 335i Coupe, vintage Mustang
I was curious about this several years ago and thought it was a good idea to contact the foremost MB tuners for some answers. RENNtech, MKB, and Kleemann were all very happy to discuss this topic with me and I thank them very much for that. I selected these companies to talk to based on the fact that they all have R&D budgets in the millions of dollars, and therefore can do real testing on cars before offering up products to the public that are deemed safe for the car. They all were of the same consensus that the 600 was safe at 19 psi with a short boost spike of 20-20.5 psi occasionally. The 65s were safe at 22 with an overboost of 23 on occasion, but all three found that 65 turbos were failing above the tuned 22.5-22.7 psi level. RENNtech actually observed failures of the wastegates valves at 24 psi too.
Nick
Nick
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From: PA
S600, GL450, GLC 43
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From: 20854
new balance
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From: Chicago
CL65
I was curious about this several years ago and thought it was a good idea to contact the foremost MB tuners for some answers. RENNtech, MKB, and Kleemann were all very happy to discuss this topic with me and I thank them very much for that. I selected these companies to talk to based on the fact that they all have R&D budgets in the millions of dollars, and therefore can do real testing on cars before offering up products to the public that are deemed safe for the car. They all were of the same consensus that the 600 was safe at 19 psi with a short boost spike of 20-20.5 psi occasionally. The 65s were safe at 22 with an overboost of 23 on occasion, but all three found that 65 turbos were failing above the tuned 22.5-22.7 psi level. RENNtech actually observed failures of the wastegates valves at 24 psi too.
Nick
Nick
Engineer to Hartmutt- "It seems we cannot find a way to go over 24 psi"
Hartmutt to engineer- "Das is Good, that means if anyone is able to go above 24 they will fail like the Führer did".......... "I just know it!"
Hartmutt to public- "We have reached the limit of boost and going beyond the engineered specifications and guidelines most definitely results in catastrophic failure of proper flux capacitor fluxing and flexing therefore should be avoided in order to avoid premeditated component disintegration of components operating within the threshold of disaster"
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sl600
So do you know at what boost the wastegate let's go. Must be higher than 24psi if that is what you are seeing. If you don't know no problem, I am just trying to find out.
Shardul how is the intercooler overflow tank working out?
Shardul how is the intercooler overflow tank working out?
