Nismo87SE

: After talking with craig B, we have found some interesting stuff. Well first off the VG30DE and VE30DE cams have the same valve timing, duration and intake/exhaust opening/closing is the same. The overlap caused by the VTC however is 28 degrees on and 8 degrees off for the VE30DE where as the VG30DE is 18 degrees on and 8 degrees off. Also the VE has less cam height but longer valves. So if you used VG30DE cams you would have 0.15" more lift. Now the ISKY cams I'm getting has .023" more lift and the 280 cam for VG30E from motorsport auto has .435" compared to stock .394". So if anyone uses VG30DE cams watch for valve to piston contact, but unless the timing isn't set right there shouldn't be a problem (I hope).


Nismo8780: how does the valve specs compare?
Nismo8780: like length, diameter and stuff
gtwhoo: "D" 1.378-1.386; 1.201-1.209
gtwhoo: "L" 4.2405-4.3602
gtwhoo: ; 4.0335-4.0531
Nismo8780: hmm
gtwhoo: "d" .2352-.2354; .2344-.2346
Nismo8780: okay
gtwhoo: angle is same
gtwhoo: "T" .0453-.0571; .0571-.0689
Nismo8780: so the VE has bigger valve head diameter
gtwhoo: sure
Nismo8780: The VE has longer valves
Nismo8780: the stem diameter is the same
gtwhoo: cool
Nismo8780: how about the valve springs?
gtwhoo: free height 1.7768
gtwhoo: pressure 54.6, 120.4 at 1.059
gtwhoo: limit pressure 48.7,107.4 at 1.059
gtwhoo: out of square .079
Nismo8780: okay
Nismo8780: how about the hydrolic lifter?
gtwhoo: outer diam .6685-.6690
gtwhoo: inner diam .6693-.6701
gtwhoo: clearance .0003-.0016
Nismo8780: damn they are half teh width of the VG30DE lifters!
gtwhoo: cool
Nismo8780: VG lifters are outer diam .6278-.6282
Nismo8780: inner diam 0.6299-.6304
gtwhoo: I see
Nismo8780: clearance is 0.0017-0.0026
Nismo8780: also what is the compression numbers
Nismo8780: the VG is 173psi at 300rpm
Nismo8780: min of 128psi, difference limit of 14psi
gtwhoo: 183psi at 300rpm
gtwhoo: min 142
gtwhoo: difference 14
Nismo8780: The VG30DE is 186psi/300rpm, 142psi min and 14psi difference
Nismo8780: the VG30DETT is the same as the VG30E's is
gtwhoo: cool
Nismo8780: lets compare the pistons
Nismo8780: teh VG30DE is "A"
Nismo8780: grade 1 = 3.4242-3.4246
gtwhoo: same
Nismo8780: grade 2= 3.4246-3.4250
gtwhoo: same
Nismo8780: grade 3 = 3.4250-3.4254
gtwhoo: same
Nismo8780: .25 oversize
Nismo8780: 3.43340-3.4360
gtwhoo: yup
Nismo8780: 0.50 oversize 3.4439-3.4459
Nismo8780: cool
gtwhoo: same
Nismo8780: the "a" is 1.890
gtwhoo: "a" = .65
Nismo8780: piston pin hole diameter is 0.8656-0.8661
gtwhoo: yup
Nismo8780: are you sure for "a"?
gtwhoo: it says 16.5(.650)
Nismo8780: for my VG30E its 47(1.85)
gtwhoo: that's weird; everything else is the same
Nismo8780: damn
Nismo8780: piston clearance
Nismo8780: 0.0006-0.0014 non turbo
gtwhoo: hehe
gtwhoo: same
Nismo8780: 0.00010-0.0018 for turbo
gtwhoo: no turbo here =(
Nismo8780: but the VG30E is the same
Nismo8780: as VG30DETT

Guest

where exactly does the VTC sprocket and spring reside in the VE?, and what if we were to get these same parts off of a VQ? would it work? or are these 2 engines THAT different?

Jeff92se

iTrader: (82)

VE vs VQ. The differences are like night and day. No meaningfull interchangable parts.