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EOI calculator
Posted: Fri Oct 21, 2016 6:23 am
by vHell83
Hi,
I'm trying to work out the EOI calculator, I have been told that i need to enter my cam specs into the file which will calculate my EOI table?
Just wondering if someone could assist me in where exactly I enter them, as it's not the "Stock cam specs" tab as there's no tables to modify in there.
Attached is my specs (Dialed in then advertised in first comment)
EOI Calculator -
download/file.php?id=9851
Thanks.
Re: EOI calculator
Posted: Fri Oct 21, 2016 6:24 am
by vHell83
Advertised
Re: EOI calculator
Posted: Sat Oct 22, 2016 4:40 pm
by The1
what model do you have, as stock cams for reference can be different, but main changes to notice is more duration, changing the EOI may help cold start, fuel AFR stability and gain a little torque, but it takes some fiddling. On a dyno is best as the gains arn't huge.
Re: EOI calculator
Posted: Sat Oct 22, 2016 11:32 pm
by vHell83
The1 wrote:what model do you have, as stock cams for reference can be different, but main changes to notice is more duration, changing the EOI may help cold start, fuel AFR stability and gain a little torque, but it takes some fiddling. On a dyno is best as the gains arn't huge.
I have a VS S2, if you're reffering to car model.
It's running ecotec PCM and loom.
Re: EOI calculator
Posted: Sun Oct 23, 2016 10:16 am
by The1
Stock Cam for reference
Advertised Valve Timing at height - 0.008 inches
Inlet Opens - 9.8 degrees BTDC
Inlet Closes - 52.1 degrees ABDC
Exhaust Opens - 56.8 degrees BBDC
Exhaust Closes - 14.5 degrees ATDC
Inlet Valve Duration - 241.9 degrees
Exhaust Valve Duration - 251.3 degrees
Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4066 inches
Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4083 inches
Inlet Valve Lift at TDC - 0.0256 inches
0.050 Valve Timing
Inlet Opens - minus 20.9 degrees BTDC (20.9 degrees ATDC)
Inlet Closes - 21.4 degrees ABDC
Exhaust Opens - 26.1 degrees BBDC
Exhaust Closes - minus 16.2 degrees ATDC (16.2 degrees BTDC)
Inlet Valve Duration - 180.5 degrees
Exhaust Valve Duration - 189.9 degrees
Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4066 inches
Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4083 inches
Ramp Rate - 2.27
Valve Overlap Seat to Seat - 24.3 degrees
Valve Overlap at 0.050 inches - minus 37.1 degrees
Inlet Lobe Centreline - 111.1 degrees
Exhaust Lobe Centreline - 111.2 degrees
Lobe Separation Angle - 111.2 degrees