First found this forum when looking for exhaust header and scavenging information, and found lots of good and well explained information, so looking in now and then, been away a while, but better introduce myself a little.
My car and engine isnt the most common in here I guess, a old bmw m3, the first generation that was a homologation special for racing in 86 and forward.
Original they had a detuned 2.3 liter inline with 200bhp. Racing versions was 300-380 bhp (latest 2.5 liter in 92)
My car is a road and trackday car and Im not aiming that high, but I have gotten somewhat been carried away with this and found NA tuning very interesting.
Ended up stroking it to 2.66 liter and lots of nice parts making it work.
So a couple of $K grands later I have a very (in these terms) strong little engine, making 330nm and 325 hp on regular 95 fuel and made to be very driveable with top hp at 7600rpm.
But still struggling with a big torque dip, and needed to get ideas on this again.
So I`ll be back for more ideas on this.
My car and engine isnt the most common in here I guess, a old bmw m3, the first generation that was a homologation special for racing in 86 and forward.
Original they had a detuned 2.3 liter inline with 200bhp. Racing versions was 300-380 bhp (latest 2.5 liter in 92)
My car is a road and trackday car and Im not aiming that high, but I have gotten somewhat been carried away with this and found NA tuning very interesting.
Ended up stroking it to 2.66 liter and lots of nice parts making it work.
So a couple of $K grands later I have a very (in these terms) strong little engine, making 330nm and 325 hp on regular 95 fuel and made to be very driveable with top hp at 7600rpm.
But still struggling with a big torque dip, and needed to get ideas on this again.
So I`ll be back for more ideas on this.
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