My Vtec Gives Hugs mmmbah
Join Date: 2007-12-13
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yes sir, also I found this out and it may be very useful for those venturing into the VET projects themselves.
VE cam specs and overlap
Originally Posted by exxd
This combo will have 60* overlap vs. the having 70* overlap with both 16ve cams.
The 60* overlap is with the 16ve intake cam centerline at 100*ATDC and the 20ve exhaust cam centerline at 114*BTDC.
While I'm at it, More VE camshaft overlap:
SR20VET - 13*
SR20VE - 48*
SR20VE 20V - 57*
SR16VE - 70*
SR16VE - N1 (v1?) - 78*
SR20VE
Intake cam
Low lobe: 8.4mm lift @ 220 duration
Low lobe center angle: 110deg
High lobe:10.7mm lift @ 264 duration
High lobe center angle: 104deg
Exhaust cam
Low lobe: 6.6 mm lift @ 244 duration
Low lobe center angle: 122deg
High lobe:10.34 mm lift @ 268 duration
High lobe center angle: 114 deg
SR16VE
Intake cam
Low Intake Duration: 200
Low Intake Lift: 7.1
Low Intake Center Angle: 100
Low Lobe Center Angle: 111
Low Overlap: 0
High Intake Duration: 280
High Intake Lift: 11.1
High Intake Center Angle: 100
High Lobe Center Angle: 105
High Overlap: 70
Exhaust cam
Low Exhaust Duration: 244
Low Exhaust Lift: 7.95
Low Exhaust Center Angle:122
High Exhaust Duration: 280
High Exhaust Lift: 11.1
High Exhaust Center Angle:110
SR16VE N1
Intake cam
Low Intake Duration: 220
Low Intake Lift: 8.4
Low Intake Center Angle: 110
Low Lobe Center Angle: 116
Low Overlap: 0
High Intake Duration: 288
High Intake Lift: 12.0
High Intake Center Angle: 104
Exhaust cam
Low Exhaust Duration: 244
Low Exhaust Lift: 7.95
Low Exhaust Center Angle:122
High Exhaust Duration: 288
High Exhaust Lift: 11.9
High Exhaust Center Angle:110
SR20VE (20V)
Intake cam
Low duration: 228deg
Low lift 10.10mm
Low center angle: 114deg
High duration: 278deg
High lift: 12.00 mm
High center angle: 114deg
Exhaust cam
Low duration: 244deg
Low lift: 8.30mm
Low center angle: 106deg
High duration: 280deg
High lift: 11.15mm
High center angle: 108deg
Other cam info
Timing Events:
All of the above (except lifts ofcourse) can be calculated from teh timing events.
SR16VE
Intake Low: Opens at 0deg before TDC, Closes at 20deg After BDC
Intake High: Opens at 40deg before TDC, Closes at 60deg After BDC
Exhaust Low: Opens at 64deg before BDC, Closes at 0deg After TDC
Exhaust High: Opens at 70deg before BDC, Closes at 30deg After TDC
SR16VE-N1
Intake Low: Opens at 0deg before TDC, Closes at 40deg After BDC
Intake High: Opens at 40deg before TDC, Closes at 68deg After BDC
Exhaust Low: Opens at 64deg before BDC, Closes at 0deg After TDC
Exhaust High: Opens at 74deg before BDC, Closes at 34deg After TDC
Thanks to FastNX ,92nx2k and hpro123 for the information
Now this info is from the other forum. Here's what I found out for myself...
Honda cams. B18C cams
intake 230 duration 10.7 mm lift
exhaust 227 and 9.4 mm lift
17 degrees overlap
Type R cams
intake 240 and 11.5 mm lift
exhaust 235 and 10.5 mm lift
28 degrees overlap