Being a NA guy at heart studying all of my camshaft options is something I do, so I figured I'd post the collected data here to make it easy for others to review. I'm posting advertised specs, I wish I had the $ & equipment to measure them all myself so they would all be using the same method & set-up for a more exact comparison.

I know I missed a brand or two (like Scotts Perf, I can’t find it) & probably missed a brand or two unknowingly, so help me out by posting the specs of those cams, or provide me a weblink to where I can get the info & add it to this thread.


VQ35 Cams Specs:

CamMake Duration Duration@.05” Lift(“) Lift(mm)

Nissan
Stock 238/240 208/208 .375” 9.52mm
Nismo R-tune 262/262 .426” 10.82mm
Spec1 276/256 .433/.413” 11mm/10.5mm
Spec2 284/268 .433/.413” 11mm/10.5mm

JWT
S1 260/260 222.5/222.5 .428” 10.9mm
S2 256/256 219.5/219.5 .43” 10.92mm
C2 261/261 225/225 .456” 11.58mm
S7 (revup) 262.5/262.5 225.5/225.5 .45” 11.43mm

Brian Crower
Stage 2 264/264 222/222 .426” 10.82mm
Stage 3 272/272 234/234 .425” 10.8mm

Tomei
Stage 1 256/256 .401” 10.2mm
Stage 2 264/264 .401” 10.2mm
Stage 3 268/268 .413” 10.5mm
Procom Opt1 272/272 .413” 10.5mm
Procom Opt2 272/272 .444/.433” 11.3/11mm
Procom Opt3 280/280 .444/.433 11.3/11mm

Crawford
Street 265/265 .433/.433" 11mm/11mm
Race 292/265 .433/.433" 11mm/11mm

GTM
Turbo Spec 256/264 .423/.423" 10.744/10.744mm
Stage2 Turbo, 272/272 232/232 11.00/11.00m
Stage3 Turbo, 288/288 245/245 11.5/11.5mm
Stage 1 NA 264/256 .435/.423" 11.05/10.744mm
Stage2 NA, 282/272 240/232 11.50mm/11.00mm
Stage3 NA, 302/292 256/250 11.50mm/11.00mm

Scott's Performance (discontinued)
Stage 1 261/261 215/215 .403"/.403"
Stage 2 255/255 213/213 .410"/.410"

An interesting side note is that most sites posted stock cams as having the specs I listed. The Brian Crower website however specs Stock cams as having longer durations of 256° (the 208° at .05” comes from the BC website). This makes me wonder if the 238/240 of what Nissan specs them as is a conservative #. Of course the measurement method does effect results. I really don’t know what to make of it other than the stock cams may have longer durations than we're led to believe (lifts are the same). I just wanted to mention it.


The way the forum limits my ability to position the text as desired makes the info kind of hard to make sense of, so I've attached a PDF.

 

Crawford
Race 292/265 unknown .433"
Street 265/265 unknown .433"

Also, it would be nice if Revup cams are marked for the some of us that are "blessed" with revups

 

Nice read for the na guys . Look at some of the GTM cam specs.

Chris

 

Very nice thread.

Lets keep building on it.

Todd

 

Might need to add. Nismo Spec 1 and Nismo Spec 2 cams. Also identify which cams are strictly VQ35DE friendly vs VQ35HR.

 

The only cams I've listed that are Rev-up compatible that I'm aware of are the JWT S7's so I have (rev-up) next to the name. If some of the others are, lmk.

Also, any help or links you guys could provide would be great. I'm obviously rather new to the VQ scene (me & my 20 posts) so I don't know all of the resources available to get the cam info we're looking for.


So far I've learned of a few other brands, but haven't been able to get the specs for those cams yet they are:

Nismo's other cams
Scott's Performance (website seems like it's gone, so maybe they are too?)
GT motorsports (still working on the new website, do they have an "old" one?)

JDM brands
Central 20
Esprit
Impul
Amuse
Mine's
HKS?

(I might be able to get the info for the JDM brands if I spoke Japanese, unfortunately my 2nd language is Chinese. I can make out the Kanji, but not enough of it to navigate the websites).

 

I think you're goin to have to search the boards for info about GTM cams or they might be nice enough to send you the info if you pm sam@gtm or george@gtm, they start a new thread in the fi section whenever they make a new product. I think scotts performance is no longer around.

 

Here's a question.

It seems that Tomei has limited their basic cams to just 10.2mm of lift so that they are still compatible with CVTC. Their other cams are limited to 11.3mm of lift so that they are compatible with stock internals but not with Variable timing. They mention an 11.3mm max lift with stock internals & an additional 1mm clearance needed if using CVTC, that's why the other cams are 10.2mm.

Does this mean that most of the other cams that are over 10.3mm of lift will not work with CVTC? or did I misunderstand something?


Now if that's the case, what's more beneficial for torque? for power?
1. less lift but still maintain the CVTC function, or
2. higher lift but no variable intake timing?

I would assume overall Torque is choice 1 while peak power is choice 2.

 

Any input? Am I understanding the valve to piston clearance issues correctly?

What seems to work better with these engines: sacrifice CVTC for more lift, or maintain CVTC with less lift?

 

Tht VTC system will advance and retard the cams regardless of lift. I am running the Tomei 272's and the VTC system still functions correctly. Having VTC pulleys that have allow more retard and advance may be needed for larger duration and lift cams. As far as PTV clearance the 272's have no issues even with stock pistons...they also work with Cosworth 11:1 pistons.

 

the only criticism I'd make of having such a "list" is that without knowing what duration the lift was measured, or the scale on which they are doing the measurement, you really don't get any clue as to how the cam performs or how mild/aggressive it is relative to other cams. And of course th final lift/duration #'s are not much more than marketing figures - in the world of performance cams, it's all about the ramp rate (something you won't see any manufacturer publicize, as half of those listed don't even "make" cams, and those that do would never want to share

NISMO Spec 1, Spec 2 and blanks (these are for fully built motors only, not for use on otherwise stock motors - they are for guys going all out NA:

Next up the ladder are NISMO's Spec 1 and Spec 2 setups. The Spec 1 setup features inlet cam specs of 276 degrees duration, and .433 " lift. The exhaust cam is 256 degrees duration with .413" of lift.

The Spec 2 cams are for the ultimate in top end power. The intake cam features a wild 284 degrees of duration, and .433" lift, while the exhaust cam features 268 degrees duration with .413" lift.

For those going for a custom head setup, NISMO also now offers 2 sets of cam blanks. These billet blanks are for those that want to have a cam ground to their own specs. The first set (Type A) can be ground to a max of 284 degrees if duration and .433" lift. the Type B is for competition use only, and can be ground to a max of 312 degrees of duration and .551 " lift. Type B is special order only.

JUN also does 272's - I forget the lift but I posted it at some point before (they are not on their site they are built to order, same cams they use in the Option/Stream car and require VTC to be disabled)

 

Thanks, for the info. I totally understand your criticism, that's why the first paragraph of my first post has the above quoted line. I can only post what is available to us which is the advertised information.

If I had 20g's maybe I could buy them all & measure them all using the same method, but I'm currently focusing on gathering the next $4-5,000 I need to finish up my swap.