CAM question..........again
11-06-2007, 10:33 PM
#1
i SeE what you did therE
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CAM question..........again
ok...........seriously.... i am really tired of searching.. my eyes hurt...
has anyone sucessfully got a set of 350z rev up cams working in their 3.5 maxima/altima? and if so, dyno? impressions?
has anyone sucessfully got a set of 350z rev up cams working in their 3.5 maxima/altima? and if so, dyno? impressions?
Last edited by redmaxpa007; 11-07-2007 at 08:32 AM.
11-07-2007, 09:17 AM
#3
IIRC, this was tossed around a bit last year, but no one has done it because it hasn't been worth the effort, esp when you can now get JWT, Nismo, Delubz, etc cams on eBay and my350z for around the same price. Someone please correct me if I'm wrong.
11-07-2007, 12:54 PM
#5
i SeE what you did therE
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was just wondering if the slight difference in the rev up would be worth the install.. guess i might as well wait to get some JWT, Nismo, Delubz, etc cams
i can get a set of rev up cams hella cheap, that is y i was asking....
11-07-2007, 02:10 PM
#7
Anyone of us could get them for pretty cheap on the Z/G boards. In any case, rev limiter extension should be mandatory.
11-07-2007, 02:47 PM
#8
i SeE what you did therE
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I can be full of caka if I don't like you, semi helpful otherwise. Either way, the info is out there, just seems as if your OG-ness inhibits you the proper search skills. My real point is, why not get as much as you can prior to going with cams? Because they're cheap? Anyone of us could get them for pretty cheap on the Z/G boards.
In any case, rev limiter extension should be mandatory.
Anyone of us could get them for pretty cheap on the Z/G boards. In any case, rev limiter extension should be mandatory.
yes, cheap on the z boards was y i was asking about them. and as for getting as much as i can before cams? HELL yes.. doing the research now and planning ahead is always how i have modded cars.
the .orgy is the best site for all this... the z guys go beyond our scope sometimes and the altima guys are tight lipped...
rev limiter and ecu adjustments....
..... i have that as well........
11-07-2007, 08:20 PM
#16
The FSM's wouldn't really help him as far as installation is concerned since the steps are identical. He needs pictures of the business end of a revup exhaust cam to know precisely how to reposition the dowel if necessary. He also needs to know how many degrees the electromagnetic retarders sweep to know exactly where the dowel needs to be for cam timing purposes. He could use the Z33 manual to look up the cam timing however but until he gets those two other bits of info the cam timing specs in the FSM are useless.
Last edited by nismology; 11-07-2007 at 08:24 PM.
. . ..
grumble grumble...
well then,
:
11-08-2007, 05:24 AM
#25
Well fellas....I'm in the process of dropping these into my motor. Were swapping the new engine in saturday. Basically we custom fabbed adapters for the exhaust cams. We essentially modded JWT cam spacers, by drilling a 6mm hole 180* from the original.
Not sure exactly how its gonna work, but only time will tell. Anyways...these are going in a built 3.5 (minus pistons/rods) and its gonna have some boost on it. As soon as we are up and running I'll let you guys know.
Not sure exactly how its gonna work, but only time will tell. Anyways...these are going in a built 3.5 (minus pistons/rods) and its gonna have some boost on it. As soon as we are up and running I'll let you guys know.
11-08-2007, 08:57 AM
#26
Well fellas....I'm in the process of dropping these into my motor. Were swapping the new engine in saturday. Basically we custom fabbed adapters for the exhaust cams. We essentially modded JWT cam spacers, by drilling a 6mm hole 180* from the original.
Not sure exactly how its gonna work, but only time will tell. Anyways...these are going in a built 3.5 (minus pistons/rods) and its gonna have some boost on it. As soon as we are up and running I'll let you guys know.
Not sure exactly how its gonna work, but only time will tell. Anyways...these are going in a built 3.5 (minus pistons/rods) and its gonna have some boost on it. As soon as we are up and running I'll let you guys know.
11-08-2007, 08:57 AM
#27
11-08-2007, 09:04 AM
#28
11-09-2007, 06:28 AM
#31
So your motor is the one that Viper was talking about getting the rev up cams to work in.Have you gotten your rod bolts yet.I remember him saying that the bolts were the only thing holding up the install but everything else was finished. Unfortunately I bought my bolts from the same guy on e-bay and I'm still waiting on mine 3 weeks later.
11-09-2007, 09:04 AM
#33
Take a pic of a non-revup exhaust cam put end to end with a revup exhaust cam please. The sprocket ends I mean, put one cam end beside the other and push them together until the end(s) hits the flange(s) to stop more movement (hope that's understandable, it's hard to explain).
Thanks!
Thanks!
11-12-2007, 06:54 AM
#34
well sorry for the delay guys....I've been really busy with work/car.
Unfortunately...it was too late to get the pics you guys requested. Sorry again :/
I did get some pics of the install, and how it was done.
Ok, here is a quick overview of what was done to make these work.
1. Buy JWT cam spacers
2. Drill a 6mm hole 180* from original hole (this will be intake sprocket)
3. For the exhaust sprocket, you use the JWT with a longer dowel
4. Install
Apparantly, they fit perfectly and everything is good to go.
**Congrats to ViperVadim for the First Rev-Up Cam install in a Max.**
He basically did everything, I just helped get some of the machining done. Vadim knows his stuff, and I'm sure he'll chime in here if I presented any info wrong.
Hope this helps a lil.
Unfortunately...it was too late to get the pics you guys requested. Sorry again :/
I did get some pics of the install, and how it was done.
Ok, here is a quick overview of what was done to make these work.
1. Buy JWT cam spacers
2. Drill a 6mm hole 180* from original hole (this will be intake sprocket)
3. For the exhaust sprocket, you use the JWT with a longer dowel
4. Install
Apparantly, they fit perfectly and everything is good to go.
**Congrats to ViperVadim for the First Rev-Up Cam install in a Max.**
He basically did everything, I just helped get some of the machining done. Vadim knows his stuff, and I'm sure he'll chime in here if I presented any info wrong.
Hope this helps a lil.
11-12-2007, 10:44 AM
#35
What you've described is exactly what you'd have to do to non-revup cams to make 3.0 timing work if you didn't get StephenMax adapters or machine sprockets like I did. Which suggest the revup cams are the same length... although I'd still like to have a confirmed measurement..
11-12-2007, 10:54 AM
#36
Ok, the rev-up cams are the same length. Only difference is the lift/duration, and the Rev-Up cams have VTC's on both intake/exhaust.
As I mentioned for the intake cam we used the modded JWT spacer (6mm hole drilled 180* from original hole), and the exhaust cam we used a 3.0 dowel pin (longer one). But yes, the rev-up cams are the same length.
Hopefully, I'll have the whole engine in within the week, and can give you some butt dyno's before I throw the blower on and hit a real dyno.
Again, all credit goes to ViperVadim, I just helped when he needed it
As I mentioned for the intake cam we used the modded JWT spacer (6mm hole drilled 180* from original hole), and the exhaust cam we used a 3.0 dowel pin (longer one). But yes, the rev-up cams are the same length.
Hopefully, I'll have the whole engine in within the week, and can give you some butt dyno's before I throw the blower on and hit a real dyno.
Again, all credit goes to ViperVadim, I just helped when he needed it
11-12-2007, 11:06 AM
#37
Well the intake cams are indentical to non-revup cams as far as installation is concerned so that wasn't really a worry. As for the exhaust cams, I guess they have 1 dowel at 0* like the non-revup cams so installation isn't difficult at all. Thanks for the info.
The other part of the equation, of course, is the valve timing. Did he degree the exhaust camshafts at all? Installing them straight up might have left them in the retarded position and you'd end up with a heckuva lot more overlap than you bargained for.
The other part of the equation, of course, is the valve timing. Did he degree the exhaust camshafts at all? Installing them straight up might have left them in the retarded position and you'd end up with a heckuva lot more overlap than you bargained for.
11-12-2007, 11:35 AM
#39
Well the intake cams are indentical to non-revup cams as far as installation is concerned so that wasn't really a worry. As for the exhaust cams, I guess they have 1 dowel at 0* like the non-revup cams so installation isn't difficult at all. Thanks for the info.
The other part of the equation, of course, is the valve timing. Did he degree the exhaust camshafts at all? Installing them straight up might have left them in the retarded position and you'd end up with a heckuva lot more overlap than you bargained for.
The other part of the equation, of course, is the valve timing. Did he degree the exhaust camshafts at all? Installing them straight up might have left them in the retarded position and you'd end up with a heckuva lot more overlap than you bargained for.
Thanks man, I been teaching myself as much as I can as we go through this build. I'd have to say, I'm fully confident I can build a 3.5 from the ground up, + all the aftermarket goodies.
I'll let you know anything else I find out about the install. My engine is a Vq35-1/2HR lol
11-12-2007, 11:55 AM
#40
Well the intake cams are indentical to non-revup cams as far as installation is concerned so that wasn't really a worry. As for the exhaust cams, I guess they have 1 dowel at 0* like the non-revup cams so installation isn't difficult at all. Thanks for the info.
The other part of the equation, of course, is the valve timing. Did he degree the exhaust camshafts at all? Installing them straight up might have left them in the retarded position and you'd end up with a heckuva lot more overlap than you bargained for.
The other part of the equation, of course, is the valve timing. Did he degree the exhaust camshafts at all? Installing them straight up might have left them in the retarded position and you'd end up with a heckuva lot more overlap than you bargained for.
Default exhaust position is advanced is it not? (need to check the FSM).
The intake is no concern to me but the length/sprocket end of the exhaust cam is important for my 3.5 application...
