When you say VQ30 cams, you're referring to JWT VQ30 cams and NOT stock VQ30 cams, correct?
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Originally Posted by Nismo3112
But my plan is to use VQ30 cam gears with the VQ30 cams, in a VQ35 head, ofcourse along with the VQ30 front and rear timing covers. Do-able? Tilley?
^^ I plan on using stock VQ30 cams. Wouldn't that be the easiest way to reuse the 3.0 timing equipment? (no drilling etc..) I was told that this is the plan Tilley is doing for one of his customers.
I guess if Tilleys doing it, it should be okay.
If it's a turbo car that's not a big deal, but for a NA car, I'd go through the hassle of sending Tilley your intake cams for drilling and buying his soon to be available JWT clone spacers.
spacers were 40 for a set of 2 only..... so for the whole set its like 80 or something..... and tilley says his will be cheaper 
Hmmm, if it isnt too expensive for him to drill the (VQ35 cams??), then i'll go that route.. But aren't the spacers only needed for the intake cam gears because the exhaust cam gears are thicker?
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[img]http://img233.exs.cx/img233/6466/camgears2im.jpg[img]
NO. You will need them for all 4 sprockets. The spacers go between the sprockets and the cams. If you try and visualize that, you'll see why all 4 need them.Originally Posted by Nismo3112
Hmmm, if it isnt too expensive for him to drill the (VQ35 cams??), then i'll go that route.. But aren't the spacers only needed for the intake cam gears because the exhaust cam gears are thicker?[img]http://img233.exs.cx/img233/6466/camgears2im.jpg[img]
japmaxSE said he only paid $40+shipping.
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Originally Posted by emmas97
spacers were 40 for a set of 2 only..... so for the whole set its like 80 or something..... and tilley says his will be cheaper
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Originally Posted by IceY2K1
japmaxSE said he only paid $40+shipping.
That's before they realized what was going on
A set of 4 spacers are exactly $40.00 for shipping they only allow FedEx only it will come out to $58.00 or $60.00 exactly.
Exactly, so Emma or Tilley saying they are $80+ isn't correct, since JWT just raped Tilley on "the last set".
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Originally Posted by Quicksilver
That's before they realized what was going on
at the time that japmax bought them, apparently they werent dealer only products, but they switched that i guess and when they made it a dealer/business only product, they bumped the price.... (i dunno thats what i was told)
Well all machine shops want alot too make them. But if anyone needs em i can sell em.
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They are on there way too you, sent yesterday.Originally Posted by Nismo3112
Any word on my cams and spacers??
What are you doing relative to cam timing?
Using the EM section specifications of the VQ30 FSM as an example the intake opens at 3deg btdc and the exhaust closes at 3deg atdc, an over lap of 6deg, that seems pretty good and would be a target. If you look over the VQ35 FSM the exhaust is fixed at 8deg atdc, but check the intake... it shows 6deg btdc so an overlap of 14 deg, more than double the VQ30 overlap, not good for boosted applications. BUT the total duration of the VQ35 intake cam (dimension b) shows as 238deg, But add up the other dimensions (c)6btdc + 180 + (d)64 abdc = 250deg of duration? so is the 250deg total timing with the vtc control? if so thats only +/-12deg off the (b) dimension. Now if you check the EC section of the VQ35 FSM and look at the IVT section the control indicated zero to -5deg at idle and zero to +30deg after 2000rpm. That dosent make sense to me, i must be missing somthing. This is important to know so the VQ35 cams can be timed properly in a VQ30. If the cam advance is wrong it can hurt power, excessive overlap is BAD for a boosted car.
What ya know?
Using the EM section specifications of the VQ30 FSM as an example the intake opens at 3deg btdc and the exhaust closes at 3deg atdc, an over lap of 6deg, that seems pretty good and would be a target. If you look over the VQ35 FSM the exhaust is fixed at 8deg atdc, but check the intake... it shows 6deg btdc so an overlap of 14 deg, more than double the VQ30 overlap, not good for boosted applications. BUT the total duration of the VQ35 intake cam (dimension b) shows as 238deg, But add up the other dimensions (c)6btdc + 180 + (d)64 abdc = 250deg of duration? so is the 250deg total timing with the vtc control? if so thats only +/-12deg off the (b) dimension. Now if you check the EC section of the VQ35 FSM and look at the IVT section the control indicated zero to -5deg at idle and zero to +30deg after 2000rpm. That dosent make sense to me, i must be missing somthing. This is important to know so the VQ35 cams can be timed properly in a VQ30. If the cam advance is wrong it can hurt power, excessive overlap is BAD for a boosted car.
What ya know?
Yeah, the VQ35 FSM seems to have an error, but those numbers don't include VTC operation. VTC operation is shown here:
A bit more overlap would hurt spoolup somewhat, but the increased duration and lift would really help top end. Also, with a SC car a bit of boost being lost during overlap is a concern, however with a turbo you can just compensate by running a bit more boost.
A bit more overlap would hurt spoolup somewhat, but the increased duration and lift would really help top end. Also, with a SC car a bit of boost being lost during overlap is a concern, however with a turbo you can just compensate by running a bit more boost.
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Using the EM section specifications of the VQ30 FSM as an example the intake opens at 3deg btdc and the exhaust closes at 3deg atdc, an over lap of 6deg, that seems pretty good and would be a target. If you look over the VQ35 FSM the exhaust is fixed at 8deg atdc, but check the intake... it shows 6deg btdc so an overlap of 14 deg, more than double the VQ30 overlap, not good for boosted applications. BUT the total duration of the VQ35 intake cam (dimension b) shows as 238deg, But add up the other dimensions (c)6btdc + 180 + (d)64 abdc = 250deg of duration? so is the 250deg total timing with the vtc control? if so thats only +/-12deg off the (b) dimension. Now if you check the EC section of the VQ35 FSM and look at the IVT section the control indicated zero to -5deg at idle and zero to +30deg after 2000rpm. That dosent make sense to me, i must be missing somthing. This is important to know so the VQ35 cams can be timed properly in a VQ30. If the cam advance is wrong it can hurt power, excessive overlap is BAD for a boosted car.
What ya know?
Originally Posted by MardiGrasMax
What are you doing relative to cam timing? Using the EM section specifications of the VQ30 FSM as an example the intake opens at 3deg btdc and the exhaust closes at 3deg atdc, an over lap of 6deg, that seems pretty good and would be a target. If you look over the VQ35 FSM the exhaust is fixed at 8deg atdc, but check the intake... it shows 6deg btdc so an overlap of 14 deg, more than double the VQ30 overlap, not good for boosted applications. BUT the total duration of the VQ35 intake cam (dimension b) shows as 238deg, But add up the other dimensions (c)6btdc + 180 + (d)64 abdc = 250deg of duration? so is the 250deg total timing with the vtc control? if so thats only +/-12deg off the (b) dimension. Now if you check the EC section of the VQ35 FSM and look at the IVT section the control indicated zero to -5deg at idle and zero to +30deg after 2000rpm. That dosent make sense to me, i must be missing somthing. This is important to know so the VQ35 cams can be timed properly in a VQ30. If the cam advance is wrong it can hurt power, excessive overlap is BAD for a boosted car.
What ya know?
Just to help others without a FSM visualize what you're asking, here are the VQ30 FSM cam specs:
Here are the VQ35 FSM cam specs:
e = EVC = 8-degrees ATDC
f = EVO = 52-degrees BBDC
Here are the VQ35 FSM cam specs:
e = EVC = 8-degrees ATDC
f = EVO = 52-degrees BBDC
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Originally Posted by TILLEYS99
They are on there way too you, sent yesterday.
Thanks Tilley!Icey: Good info. I get lost when it comes to timing, I just hope I put everything back together correctly..
Thanks Ice... I suppose a degree wheel could nail down where to drill the new pin hole in the propper location so the overlap is not an issue.
That's what I was thinking/wondering, ie adjusting the intake cam advance angle to work with the stock exhaust cam.
I have a SAE tech doc on the VQ35s that includes some kind of chart on the optimal RPM for IVC to produce peak torque in the low, then mid, and finally top-end. However, it is pretty hard to read and I can't make much of it anyways.
Isn't there a program/tool like Cam Doctor or something that some shops use to run a cam through and it measures all the cam specs?
I have a SAE tech doc on the VQ35s that includes some kind of chart on the optimal RPM for IVC to produce peak torque in the low, then mid, and finally top-end. However, it is pretty hard to read and I can't make much of it anyways.
Isn't there a program/tool like Cam Doctor or something that some shops use to run a cam through and it measures all the cam specs?
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Originally Posted by MardiGrasMax
Thanks Ice... I suppose a degree wheel could nail down where to drill the new pin hole in the propper location so the overlap is not an issue.
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What shipping service did you use? They aren't here yetOriginally Posted by TILLEYS99
They are on there way too you, sent yesterday.
EDIT:
what about the spacers from the original vq30 cam, maybe you can reuse that. any one have pics of those,
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There is no spacer on the VQ30 cams.Originally Posted by Ninos_Maxima
what about the spacers from the original vq30 cam, maybe you can reuse that. any one have pics of those,
