anyone run a E46 M3 with SC S?
I realize it 'should' not have a problem, but I can tell you firsthand that it most certainly does in a street race.
The reason is that a 300whp SC'd S has those 300whp for the last instant before the rev limiter kicks in... then you either end the race or you have to shift. It's not making anywhere near that power throughout even the high RPM cam's range. At 5000 rpm, for example, it makes 150 whp, about 20 more than stock. At VTEC engagement (5800), it makes 170, about 30 more than stock. The M3 is making over 200whp from 4500 on up.
You are absolutely right, that to get the SC to work in a street race, you must keep the car between 6500 and redline for the entire sprint. I like to run from even multiples of 10 (20, 40 etc) which is just below the VTEC engagement point in 1st, 2nd etc, respectively. Despite that, the M3 is hard to pull away from. Above 120,where I suppose you could stay above 7,000 for a significant amount of time, the S's aerodynamics (or lack thereof) aren't exactly helping.
I wonder if giving the SC'd S another 1000rpm to work with might not give it that little extra advantage to really be competitive with the big boys. Well, if you can get around stuff like broken connecting rods and floating valves etc.
The reason is that a 300whp SC'd S has those 300whp for the last instant before the rev limiter kicks in... then you either end the race or you have to shift. It's not making anywhere near that power throughout even the high RPM cam's range. At 5000 rpm, for example, it makes 150 whp, about 20 more than stock. At VTEC engagement (5800), it makes 170, about 30 more than stock. The M3 is making over 200whp from 4500 on up.
You are absolutely right, that to get the SC to work in a street race, you must keep the car between 6500 and redline for the entire sprint. I like to run from even multiples of 10 (20, 40 etc) which is just below the VTEC engagement point in 1st, 2nd etc, respectively. Despite that, the M3 is hard to pull away from. Above 120,where I suppose you could stay above 7,000 for a significant amount of time, the S's aerodynamics (or lack thereof) aren't exactly helping.
I wonder if giving the SC'd S another 1000rpm to work with might not give it that little extra advantage to really be competitive with the big boys. Well, if you can get around stuff like broken connecting rods and floating valves etc.
I agree with Fanman that the SC'd S has a much better chance from a dig even thought IT IS MUCH harder to launch well. The M3 has exceptional traction off of the line and is much more forgiving in terms of driver error during a race.
Just raced one today for the first time on a highway.
He was right behind me at 70 when we hit it. By 100, I pulled about a car, by 130 about a bus between us.
He had a passenger, I didn't.
I had big smile on my face when I slowed down to have him catch up, he gave me thumbs up and took off.
He was right behind me at 70 when we hit it. By 100, I pulled about a car, by 130 about a bus between us.
He had a passenger, I didn't.
I had big smile on my face when I slowed down to have him catch up, he gave me thumbs up and took off.
Believable, I have a few basic mods on my 2004 M3... It's somewhat relevant to the subject matter, but I ran some dudes in a turbo hatch... him and I were dead even from 45-150/155. It was insane races we ran 2 twice / lucky we didn't get popped b/c our a$$es would've been in jail.
What are your mods though...
What are your mods though...



