I have the 3.6l 24v version so 33.4mm intake valves (x2) and cams are spec at .1mm they are about 250deg at 1mm lift. That's at the valve, zero lash due to hydro. I have vvt but don't use it for idle stability at all. Any movement and its worse (more overlap).
In reply to Paul_VR6 (Forum Supporter) :
earlier today I google VR6 cams and found this quite funny but for a 2V I'm pretty sure
"298° DRAG RACE Hydraulic camshaft set. These cams the most power of the hydraulic cams we sell. Be aware, lifter life will be short (but glorious)."
I'd have to double check but I'm remembering mine add about 5 degrees @1mm so very similar.
What do you see for a MAP value?
I'm seeing that the Australian dollar is in the toilet so an M150 with the basic software from Oz is a little cheaper than to maxxeuc pro. The motec comes kind of crippled at that price of course but would run the engine just fine but for sure no traction control or logging so probably $3k to make it functional.
Duration is compared at .050 (or 1mm I guess) for two reasons, there's usually a start ramp on the lobe that is fairly low lift rate so the valvetrain can close up the lash before it lobs the valve open, and meaningful flow doesn't really start until about then anyway.
Old timey cams meant to be kind to valvesprings and valvetrain might have had a 50 degree difference between "advertised" duration and duration at .050".
Those 298 12v cams make the beans, finally cracked 300whp on a customer car on them. Still didn't rev for E36 M3 😅
idle map is around 45kpa (near sea level) at 950rpm
Paul_VR6 (Forum Supporter) said:Those 298 12v cams make the beans, finally cracked 300whp on a customer car on them. Still didn't rev for E36 M3 😅
idle map is around 45kpa (near sea level) at 950rpm
That's a hp healthy number! RPM is about flow...something must be stopping it up I guess.
45, same as mine. Does MAP behave ok as the throttle opens? I've never had timing map but love the idea and just wondering as the MS forum is was I got the basic circuit for the multiMAP and I'm wondering why they need it?
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