I have tried searching for this information, and these are the questions l could not find answers to: What is the best bang for your buck(Hoursepower) camshafts/spring set for VQ30? And please don't say VQ35 cams whats the point of spending all that time changing them only to go one step better. I have a 00vi, rev-up oil pump and Arp headstuds ,HR headgasket, 100hp shot nitrous for the summer then turbo next winter with a 7500+rpm redline.My options are JWT VQ30 S1 256 deg dur/.415 lift with JWT Valve springs or HR valve springs double shimmed. Or maybe the JWT VQ35 S1 Cams with a Stephan Max spacers to fit the VQ30 260 deg dur/.428 lift and Jwt valve spring shim kit. Or Brian Crowers VQ35 Stage 2 Cams 264 deg dur .426 lift with spacers to fit VQ30 and BC Single spring titanium retainer kit or HR springs double shimmed and retainers. So what are you thinking??

 

Dose anybody have experience to share with these cam/spring setups for the VQ30. I just want to know which one or combination of them,(cams and springs) will work the best(horsepower) for the money in a VQ30?


Please chime in.

 

Well, if you're looking to make thr most power on your turbo setup, go cruise the boosted section on my350z.com, there are cams made specifically for boosted engines which you will see upon reading some build threads

 

If you are going turbo, make sure whatever cams you get have no overlap. If you want N/A and nitrous cams, overlap is good.

 

Is their a cam that is good for both boosted and N/A. Out of the ones I have chosen and correct me if l am wrong is overlap when both exhaust and intake valves are open for a second together. And how do you determine if a cam will have overlap, obviously in the numbers but what numbers tell you this. Maybe a noob question but please bear with me, l am trying to understand this. And it isn't your basic bolt-on.

 

Overlap is measured in degrees of crank rotation, if I remember correctly. It'll be listed with the cam specs on each manufacturer's website. And yes it's measured by how long both intake/exhaust valves are open.

As for a cam that's good for boosted and NA/N2O apps, these will all give you performance gains over using stock cams, and none of them are that radical in the first place.

 

Thanks for your direction and idea that l don't know how to search. I would have never know to look at my350z .com to see how well a vq35's performance cam would perform in a vq30. I am pretty sure they all have VQ35's over their, I would like to know what cams people have put in their VQ30's, not their VQ35's.
Thank you for your help.

 

Well as you can tell l don't understand camshaft spec's. So all l am asking is if you had the choice and the money to cam it right the first time, which one would you pick based on the best performance gains? Stay with the less than impressive numbers of the VQ30 S1 cam, or goto the VQ35 performance cams with way more choices, but are they good in the the VQ30 and do they have better gains?

 

Just make it simple for yourself and contact the manufacturers and ask them about their recommended use for the cams.

Basically, if you want cams that will work OK for N/A and nitrous for now, and will be good for F/I later, you want to go with something kinda mild with no overlap. Stock VQ35 cams would probably be good for F/I on a 3.0.

Is there any reason you want to rev so high other than cool factor? The only way you're going to make power that high is a good IM and somewhat aggressive N/A cams. There's nothing wrong with having a solid 4k-6700ish powerband, even if you can't show off to your friends how it goes into the red.

 

Get some VQ35 S1s. IMO.

 

Custom spec'd cams from Kelford!

 

hes getting my 00vi

 

I just assumed that the 00vi mad good power by providing the required air to breath into the red, so why not have a performance camshaft compliment it.

 

It appears you in fact do not know how to search, otherwise you would have known that 3.5 cams will be fine/better in the 3.0 than the limited 3.0 options.

For future reference, when people on here give you good and honest advice, dont **** on them or you will quickly stop getting advice

 

Almost no one here has done cams on a VQ30 and posted about it, let alone a turbo VQ30. The only ones that come to mind are sx7r and matthel, and both of those guys haven't posted here for years. Any other current members that have done it, I don't know about (I generally have my finger on the pulse of what's going on with FI maxima setups). Nismology might have some insight to offer as he's pretty well versed in cam specs, as well as dandymax.

My personal opinion is skip the cams because I see no mention of you having a built motor. A good turbo setup coupled with 00vi will not be power limited by cam specs before you start breaking the motor. The only way I'd ever cam a VQ is if I were going for something in the 600whp or greater range, which I didn't see you mention. I think doing cams is just spending money that doesn't need to be spent to reach your goals.

 

I think it's worth it to do cams for N/A... just not for F/I unless like you said built engine high power.

For F/I the stock cams will give you plenty of lowend grunt, and since air is being forced into the cylinders will be fine at topend. Going bigger cams to increase the rev limiter probably won't gain you much power, and you'll just be putting more stress on everything revving higher.

 

[QUOTE=Gemner;7376399]It appears you in fact do not know how to search, otherwise you would have known that 3.5 cams will be fine/better in the 3.0 than the limited 3.0 options.

For future reference, when people on here give you good and honest advice, dont **** on them or you will quickly stop getting advice[/QUOTE

Obviously you didn't understand what l meant, l was looking for someones experience with cams in a VQ30 not VQ35]. And l know VQ35 cams work fine/better in a VQ30, but in fact the question asked was which cam including VQ35 cams work best in a VQ30. And for the record l would never **** on anyone that put thought into the question, or read the question for that matter before answering. Thank you for your time.

 

I understand what your saying cams = built engine. So that answers it then, no real cam benefits for a FI VQ30. l think l will just focus on FI this winter then, and next winter do a built engine. Very expensive to do both at the same time. Thank you for taking the time to answer my question, thats the true definition of a forum, in my opinion. Bouncing idea's off others to gain perspective, sometimes not answers. Awsome!

 

I agree, I am going to change focus, and go FI this winter then.
Next winter, Forged internals + Aggressive cam= busted tranny. Whats PAR's phone # LOL