Hello, everyone here in the forum.
Since my BMW M30B35 Turbo is now ready, it's time to tune it. I've driven around the block a few times too. The boost pressure is at 3200 rpm. A spring of 7 psi is currently used. According to the data, the 7 psi is fully on up to 5000 revolutions. At full load, the exhaust gas temperature measured just before the turbo is 820 Celsius.
Now to the engine:
M30B35 211 HP 9:1 compression year 1989
Turbo Holset HX35 and Wastegate 44mm
Original cylinder head gasket with ARP screws
Bosch 460cc injectors
Wasted Spark
Intercooler and Megasquirt MS3
Fuel pump 255 l/h
charge pressure control valve
Because there is a lot of experience in the forum, I hope to find answers to my questions.
My first question is how much boost pressure can an original head gasket with ARP screws withstand? It is clear to me that the ignition also contributes a large part. That's why I'm including my current ignition map. Of course I'm happy to receive useful tips.
Mfg
Tom​
Since my BMW M30B35 Turbo is now ready, it's time to tune it. I've driven around the block a few times too. The boost pressure is at 3200 rpm. A spring of 7 psi is currently used. According to the data, the 7 psi is fully on up to 5000 revolutions. At full load, the exhaust gas temperature measured just before the turbo is 820 Celsius.
Now to the engine:
M30B35 211 HP 9:1 compression year 1989
Turbo Holset HX35 and Wastegate 44mm
Original cylinder head gasket with ARP screws
Bosch 460cc injectors
Wasted Spark
Intercooler and Megasquirt MS3
Fuel pump 255 l/h
charge pressure control valve
Because there is a lot of experience in the forum, I hope to find answers to my questions.
My first question is how much boost pressure can an original head gasket with ARP screws withstand? It is clear to me that the ignition also contributes a large part. That's why I'm including my current ignition map. Of course I'm happy to receive useful tips.
Mfg
Tom​
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